Einstein@Home GPU Application for ATI/AMD Graphics Cards


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Profile Bruce Allen
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Message 117166 - Posted 15 May 2012 12:21:17 UTC

    Last modified: 15 May 2012 12:26:20 UTC

    After more than a year of work by Oliver Bock, Bernd Machenschalk, Heinz-Bernd Eggenstein and other developers, we are pleased to announce the release of the first Einstein@Home application for ATI/AMD Graphics Cards.

    This OpenCL application, which searches Arecibo data for new radio pulsars, is about a factor of ten faster than the same search running on a typical CPU. The application is currently available for Windows and Linux computers with Radeon HD 5000 or better graphics cards. We hope to have a version for Macintosh (Apple OS X 10.8, Mountain Lion) sometime this summer, but there are still some problems that need to be fixed or worked around.

    Volunteers who wish to run this application will need to install version 7.0.27 or later of the BOINC client. Please see this thread for more information, or if you want to ask questions.

    Many thanks to the AMD/ATI team for their support in the OpenCL software development effort.

    Bruce Allen
    Director, Einstein@Home



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    Message 117167 - Posted 15 May 2012 13:14:17 UTC

      Last modified: 15 May 2012 13:15:04 UTC

      SP I would presume?

      Profile Bikeman (Heinz-Bernd Eggenstein)
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      Message 117168 - Posted 15 May 2012 13:17:26 UTC - in response to Message 117167.

        SP indeed. No support is offered for HD 4xxx generation cards (without support for OpenCL 1.1), anything more recent should do fine.

        Cheers
        HB
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        Message 117188 - Posted 15 May 2012 20:54:33 UTC - in response to Message 117166.

          Seems like it is time to buy AMD-card! :) (had no reasons to buy card before and still use Sandy Bridge HD3000)
          Is it possible to take a look at some comparison charts for compute power of typical CPU and GPU for Einstein@Home-type of calculations?

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          Message 117189 - Posted 15 May 2012 21:34:26 UTC

            CPU does not even compare. CPUs are also incredibly inefficient compared to GPU. NVIDIA.I believe they said is currently 20x faster, and currently AMD will be 10x faster. I would believe this number will increase as changes are made IMHO.

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            Message 117191 - Posted 15 May 2012 21:50:31 UTC - in response to Message 117189.

              Last modified: 15 May 2012 21:55:21 UTC

              thx for the ati/amd app, it works on my hd5870
              my first result:http://einstein.phys.uwm.edu/result.php?resultid=288520169
              but the gpu-load is only ~60%, one cpu-core is only for gpu-tasks (cpu: i7-2600k)
              should i set 'GPU utilization factor' to 0,5?
              on my second machine is a 560ti running, there i have the best results with 'GPU utilization factor' 0,33

              michel

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              Message 117192 - Posted 15 May 2012 21:54:03 UTC

                Would assume the same applies, my 680 also runs at around 60% with one applied, and around 90% with .33 set.

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                Message 117199 - Posted 15 May 2012 22:55:55 UTC

                  Nice!

                  Yes, I would encourage experiments with the utilization factor. You cn use different "venues" in BOINC-speak to assign different settings to different hosts.

                  CU
                  HB
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                  Message 117217 - Posted 16 May 2012 12:45:26 UTC

                    It works!!!

                    http://einstein.phys.uwm.edu/results.php?hostid=5353241

                    I run it with the "dangerous" option of 0.5 2tasks at once.
                    And it runs 1 + 1 on the GPU together with Milkyway, SETI, Primegrid and POEM Which are also using 0.5 in the app_info.xml file.

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                    Message 117222 - Posted 16 May 2012 13:33:43 UTC - in response to Message 117168.

                      SP indeed. No support is offered for HD 4xxx generation cards (without support for OpenCL 1.1), anything more recent should do fine.

                      Cheers
                      HB


                      So i think 4xxx will never be supported? or only @ the beginning now?
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                      Message 117224 - Posted 16 May 2012 13:39:53 UTC - in response to Message 117222.

                        Last modified: 16 May 2012 13:49:50 UTC

                        SP indeed. No support is offered for HD 4xxx generation cards (without support for OpenCL 1.1), anything more recent should do fine.


                        So i think 4xxx will never be supported? or only @ the beginning now?


                        I don't think we will make an OpenCL 1.0 App, at least not for BRP4. It would be another code branch to maintain and it would almost double the memory requirements, thus thus a task would not fit in 512MB.

                        Also I doubt that the limited computing power of the 4xxx would gain us much.

                        BM

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                        Message 117239 - Posted 16 May 2012 15:57:35 UTC

                          Last modified: 16 May 2012 15:57:46 UTC

                          ok i see, where does this 512MB limit comes from? OPENCL 1.0?
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                          Message 117245 - Posted 16 May 2012 19:15:59 UTC - in response to Message 117239.

                            Last modified: 16 May 2012 19:16:14 UTC

                            This is not a hard limit, just a target that we set to get the most of our population of ATI cards.

                            BM

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                            Message 117261 - Posted 17 May 2012 11:03:43 UTC

                              Hm are there so much 5xxx or higher with 512MB?
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                              Message 117267 - Posted 17 May 2012 12:15:13 UTC - in response to Message 117261.

                                Yes, in fact, all of them :-)

                                Oliver

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                                Message 117268 - Posted 17 May 2012 12:37:30 UTC

                                  Last modified: 17 May 2012 12:38:45 UTC

                                  I ment ONLY 512MB ;) ;) But i see half of the cards could possible have only 512MB. Hm sad.
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                                  Message 117271 - Posted 17 May 2012 14:14:52 UTC - in response to Message 117268.

                                    Last modified: 17 May 2012 14:19:12 UTC

                                    Hi!
                                    As Bernd mentioned already, more than 512 MB would only be needed for a second code branch that would be able to support OpenCL1.0. It's mostly the 4xxx cards that would benefit from support of OpennCL1.0, not the HD 5000 series. So the question would be: are there many 4000-series cards with just 512 MB? Those were popular when? 2008? 2009?. More than 512 MB video RAM wasn't the norm back then. So by supporting OpenCL1.0, we would be able to utilize only a certain fraction of the already shrinking population of older cards, to get a not-so-great performance per card ===> it just doesn't make too much sense.

                                    Cheers
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                                    Message 117272 - Posted 17 May 2012 14:43:49 UTC

                                      I'll leave my 4850 to do Milkyway and Collatz for as long as it lives.
                                      I can't put any better card in that computor since the PCIE-Express card is only 1.x something.....

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                                      Message 117290 - Posted 18 May 2012 2:04:23 UTC

                                        My HD 4870 with 1 GB (and a GeForce 320M with 256 MB) is eagerly awaiting something cooler than boring math projects. No dice as of yet.
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                                        Message 117294 - Posted 18 May 2012 7:28:08 UTC

                                          noderaser: use it like im do with my 4850 with 1GB onto POEM (when you dont like MW). Possible Three WUs @ once, 84000 Credits/day. Thx god they supporting OpenCL since a short time. Its medical research
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                                          Message 117305 - Posted 18 May 2012 12:44:01 UTC

                                            The BOINC site is unavailable for 2 days! Cannot download new client! Can somewone send 64bit Windows client ver 27 to kido00 (a t) ya.ru ?
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                                            Message 117306 - Posted 18 May 2012 12:59:18 UTC - in response to Message 117305.

                                              Last modified: 18 May 2012 13:00:11 UTC

                                              The BOINC site is unavailable for 2 days! Cannot download new client! Can somewone send 64bit Windows client ver 27 to kido00 (a t) ya.ru ?

                                              There has been a power failure at Berkeley due to a shorted underground cable. It has been repaired but the servers are still down.
                                              Tullio
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                                              Message 117307 - Posted 18 May 2012 13:07:14 UTC - in response to Message 117305.

                                                The BOINC site is unavailable for 2 days! Cannot download new client! Can somewone send 64bit Windows client ver 27 to kido00 (a t) ya.ru ?


                                                Please see main thread...

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                                                Message 117309 - Posted 18 May 2012 13:30:47 UTC

                                                  Last modified: 18 May 2012 13:31:14 UTC

                                                  Local copies of 7.0.28 are linked here.

                                                  BM

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                                                  Message 117317 - Posted 18 May 2012 18:02:17 UTC - in response to Message 117290.

                                                    [img][/img][url]ok george kalemakis.[/url]
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                                                    Message 117322 - Posted 18 May 2012 19:58:30 UTC - in response to Message 117188.

                                                      Seems like it is time to buy AMD-card! :) (had no reasons to buy card before and still use Sandy Bridge HD3000)
                                                      Is it possible to take a look at some comparison charts for compute power of typical CPU and GPU for Einstein@Home-type of calculations?


                                                      You can find some performance figures here: http://albert.phys.uwm.edu/forum_thread.php?id=8888&nowrap=true#112053
                                                      A HD6950 runs 1% /min @ 2 wu's concurrent.
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                                                      Message 117334 - Posted 19 May 2012 9:30:55 UTC

                                                        Yesterday I attached my mainsys with 2 AMD-cards to the project.
                                                        Until now 12 wu's were done, 4 validated (2 against AMD, 1 against Cuda and one against SSE).
                                                        Looks like the team has done a wonderful job! THX!
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                                                        Message 117342 - Posted 19 May 2012 15:34:39 UTC - in response to Message 117166.

                                                          Thanks to everyone involved in the development of the AMD/OpenCL app!

                                                          I'm still waiting for the first result to validate, but so far so good on a HD 7950 with Win8 preview:

                                                          http://einstein.phys.uwm.edu/result.php?resultid=289196474

                                                          BOINC 7.0.27 (x64)
                                                          Catalyst 12.4 (installed in Win7 comp. mode)
                                                          Windows 8 Dev. Preview x64

                                                          Performance not overwelming yet, appears to be only ~9% faster than my GTX 560 Ti, but since this is the first public release (and in my case not the real win8 driver), who knows what is still to come ... :-)

                                                          Regards

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                                                          Message 117352 - Posted 19 May 2012 21:17:27 UTC - in response to Message 117322.

                                                            Seems like it is time to buy AMD-card! :) (had no reasons to buy card before and still use Sandy Bridge HD3000)
                                                            Is it possible to take a look at some comparison charts for compute power of typical CPU and GPU for Einstein@Home-type of calculations?


                                                            You can find some performance figures here: http://albert.phys.uwm.edu/forum_thread.php?id=8888&nowrap=true#112053
                                                            A HD6950 runs 1% /min @ 2 wu's concurrent.


                                                            I just checked: I have 0.6% /min @ 3 concurrent einstein tasks at i7-2600K 4.5GHz. So is possible average GPU-acceleration(AMD or NV) in my case just about 2 times?..

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                                                            Message 117354 - Posted 19 May 2012 22:04:40 UTC - in response to Message 117352.

                                                              Seems like it is time to buy AMD-card! :) (had no reasons to buy card before and still use Sandy Bridge HD3000)
                                                              Is it possible to take a look at some comparison charts for compute power of typical CPU and GPU for Einstein@Home-type of calculations?


                                                              You can find some performance figures here: http://albert.phys.uwm.edu/forum_thread.php?id=8888&nowrap=true#112053
                                                              A HD6950 runs 1% /min @ 2 wu's concurrent.


                                                              I just checked: I have 0.6% /min @ 3 concurrent einstein tasks at i7-2600K 4.5GHz. So is possible average GPU-acceleration(AMD or NV) in my case just about 2 times?..

                                                              You need to compare the same types of wu's. AMD-wu's are BRP(Arecibo) wu's (500 credits).
                                                              2 concurrent means that 2 wu's are running simultanous on one GPU; my PC finishes 2 wu's every 1:45 on the HD6950 and 2 wu's every 2:45 on the HD5850 (no overclocking).
                                                              CPU is i7-860 @ 2.8GHz, win7-64
                                                              Midrange HD7xxx should perform better.
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                                                              Message 117363 - Posted 20 May 2012 10:25:16 UTC - in response to Message 117342.

                                                                I'm still waiting for the first result to validate,


                                                                Three results have been validated ok. And there are noticeable run time differences between all results. I guess it is not the amount of calculations which is varying that much? So the OpenCL application is affected maybe more by other processes than the CUDA app?

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                                                                Message 117457 - Posted 22 May 2012 7:40:22 UTC - in response to Message 117363.

                                                                  So the OpenCL application is affected maybe more by other processes than the CUDA app?


                                                                  Yes, that's an observation we also made during our testing phase. OpenCL, well at least AMD's implementation, is much more sensitive to the amount of CPU-power available to serve the GPU than NVIDIA's CUDA. Also, for CUDA we (as developers) can decide and influence how to trade GPU efficiency against CPU-consumption quite a bit - OpenCL doesn't offer such fine-tuning.


                                                                  Best,
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                                                                  Message 117480 - Posted 22 May 2012 21:53:45 UTC - in response to Message 117354.

                                                                    Last modified: 22 May 2012 22:25:02 UTC


                                                                    I just checked: I have 0.6% /min @ 3 concurrent einstein tasks at i7-2600K 4.5GHz. So is possible average GPU-acceleration(AMD or NV) in my case just about 2 times?..

                                                                    You need to compare the same types of wu's. AMD-wu's are BRP(Arecibo) wu's (500 credits).
                                                                    2 concurrent means that 2 wu's are running simultanous on one GPU; my PC finishes 2 wu's every 1:45 on the HD6950 and 2 wu's every 2:45 on the HD5850 (no overclocking). CPU is i7-860 @ 2.8GHz, win7-64. Midrange HD7xxx should perform better.

                                                                    It was not easy to find the same task... well, it is http://einstein.phys.uwm.edu/result.php?resultid=288218220 , and BRP(Arecibo) 500 credits task used 21,678 sec of my CPU, so 1% takes 217 sec. Your device1 speed is 1% for 97 sec. So again your device1-OpenCL is just about 2 times faster, and your device0-GPU is about 3 times faster. I don't know about evolution in energy efficiency for HD7970 relatively to your 160 Wt HD5850, but you have 75 Wt per task, and my i7 - 35 Wt per task (4 core overclocked i7-2600 4.5 GHz consumption is 150 Wt). We have almost the same energy efficiency! No reason for GPU installation?..
                                                                    By the way, the same task (see http://einstein.phys.uwm.edu/workunit.php?wuid=123117782 ) used 10 times more time on Pentium-4 3GHz. This progress in CPU is more impressive than current version OpenGL benefits. So sad...

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                                                                    Message 117482 - Posted 22 May 2012 22:36:59 UTC

                                                                      When crunching, gpus use less energy than if they were playing video. No video output.

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                                                                      Message 117494 - Posted 23 May 2012 6:38:42 UTC - in response to Message 117480.

                                                                        Last modified: 23 May 2012 6:39:11 UTC


                                                                        It was not easy to find the same task... well, it is http://einstein.phys.uwm.edu/result.php?resultid=288218220 , and BRP(Arecibo) 500 credits task used 21,678 sec of my CPU, so 1% takes 217 sec. Your device1 speed is 1% for 97 sec. So again your device1-OpenCL is just about 2 times faster, and your device0-GPU is about 3 times faster. I don't know about evolution in energy efficiency for HD7970 relatively to your 160 Wt HD5850, but you have 75 Wt per task, and my i7 - 35 Wt per task (4 core overclocked i7-2600 4.5 GHz consumption is 150 Wt). We have almost the same energy efficiency! No reason for GPU installation?..
                                                                        By the way, the same task (see http://einstein.phys.uwm.edu/workunit.php?wuid=123117782 ) used 10 times more time on Pentium-4 3GHz. This progress in CPU is more impressive than current version OpenGL benefits. So sad...


                                                                        Sorry, you missed one important fact:
                                                                        in these ' 1% for 97sec ' TWO wu's make this progress, they run at the same time, not one after the other.
                                                                        So the gps's are not 2 / 3 times faster, they are 4 / 6 times faster and the powerconsumption is not almost the same but 50% of your cpu /wu.

                                                                        Another way to calculate it: in 21678 sec (~6 hrs) my faster gpu crunches 6,8 wu's. And don't forget: my both gpu's are outdated, actual ones are faster and consume less power.

                                                                        Another fact: my mobo has one x16 slot and one x8 slot, here at einstein you can find another thread explaining the differeces. A better mobo would give better figures. It does not really reflect the capabilities of the 'slower' gpu.

                                                                        Anyway, we do not fight a war 'CPU against GPU', we do scientific work. There are different ways to do that. Speaking for myself, I'm happy to participate in science with the capabilities I have.
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                                                                        Message 117500 - Posted 23 May 2012 10:07:38 UTC - in response to Message 117494.

                                                                          Sorry, you missed one important fact: in these ' 1% for 97sec ' TWO wu's make this progress, they run at the same time, not one after the other.

                                                                          I did not miss. That's why I wrote "you have 75Wt per task", not "150 Wt per task" (not sure if 2 tasks use 100% of your GPU power). And my consumption is 140Wt/4=35 Wt per task, because 4 tasks can run simultaneously and speed is the same.

                                                                          My both gpu's are outdated, actual ones are faster and consume less power.

                                                                          Yes, but nobody here answers about 7970 or 680 speed and efficiency. Thank you for your information, even for outdated GPU. I wander if Bruce Allen team has no such kind of information to share with us.

                                                                          Anyway, we do not fight a war 'CPU against GPU'

                                                                          Sure! Peace, dude :) My initial question is "Is it possible to take a look at some comparison charts for compute power of typical CPU and GPU for Einstein@Home-type of calculations?". We still have no charts and just trying to find out the truth: is it worth to buy 7970 for powerful and energy-efficient calculations. Because if it is worth - I will buy.

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                                                                          Message 117503 - Posted 23 May 2012 12:35:35 UTC

                                                                            Last modified: 23 May 2012 12:38:22 UTC

                                                                            why would anyone buy ati for this project is beyond me. CUDA runs faster here. If you're going to buy a card specifically for this project you should buy NVIDIA. 680 on W7 can run 3 tasks at a time and average around 3000 seconds per task with PCIe 3.0, a little more if CPU is running other projects (3100).

                                                                            On Linux it's even a little faster

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                                                                            Message 117504 - Posted 23 May 2012 13:18:01 UTC - in response to Message 117503.

                                                                              why would anyone buy ati for this project is beyond me. CUDA runs faster here.

                                                                              Why do you thik so? Do you have some charts for 680 CUDA vs 7970 OpenCL (both codes is written by perfect programmers)? This is what I am looking for! Afaik right-written OpenCL code has performance equal to CUDA for FFT and almost all other kinds of math.
                                                                              I prefer AMD at least because OpenCL provides an open, industry-standard framework. No one but NVidia can use CUDA - this is wrong way. And don't believe NVidia advertising, it is very aggressive, half-truth, biased and often even deceptive.

                                                                              680 on W7 can run 3 tasks at a time and average around 3000 seconds per task with PCIe 3.0

                                                                              This is useful information, thank you. So it is ~7 times faster and takes ~2..3 times more power consumption, therefore it is ~2..3 times more energy-efficient. Let us wait for someone's 7970 report.

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                                                                              Message 117506 - Posted 23 May 2012 14:00:24 UTC

                                                                                Last modified: 23 May 2012 14:15:43 UTC

                                                                                Found this on Albert

                                                                                http://albert.phys.uwm.edu/results.php?hostid=2209&offset=0&show_names=0&state=3&appid=

                                                                                Based on the time stamps, I only managed to find one where they were close enough together that would give me the GUESS that they were running 2x at a time. The CPU being used can bring in some speculation. But even with those times, and the increase in TDP of the 7970, CUDA is still a better choice.

                                                                                Also don't forget what Oliver stated, "Yes, that's an observation we also made during our testing phase. OpenCL, well at least AMD's implementation, is much more sensitive to the amount of CPU-power available to serve the GPU than NVIDIA's CUDA. Also, for CUDA we (as developers) can decide and influence how to trade GPU efficiency against CPU-consumption quite a bit - OpenCL doesn't offer such fine-tuning.

                                                                                This statement does not seem to be in favor of OpenCl from the dev's perspective. What is very noted from the PCIe discussion in cruncher's corner, is that PCIe 3 is MUCH better than 2 when loading multiple tasks.

                                                                                EDIT: Since many people will not have a 7970, I would send them a private message. That person ive seen in quite a few forums, so I'm "sure" they would be willing to help.

                                                                                EDIT 2x= Even if this person was running 2, the time would still be higher than my 680 running 3. Thereby DRASTICALLY reducing efficiency.

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                                                                                Message 117508 - Posted 23 May 2012 14:55:07 UTC

                                                                                  Well, this type of "vendor A vs. vendor B" discussions have a tendency to spin out of control sooner or later and I don't want to get too involved into it :-), I'd just like to stress one important point: the BRP4 app versions for CUDA and OpenCL respectively should NOT, IMHO, be used in a "benchmark" type of sense to make general comparisons between AMD vs NVIDIA or CUDA vs. OpenCL.

                                                                                  The two versions use completely different libraries for the FFT, they even use slightly different approaches for the FFT because of limitations of the FFT lib used in the OpenCL case. The OpenCL app is "younger" and in general I would consider it less optimized to its target platform.

                                                                                  Cheers
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                                                                                  Message 117511 - Posted 23 May 2012 16:25:23 UTC - in response to Message 117508.

                                                                                    Bikeman, no war, no spinning out - just measurement, some statistics and a few ideas about attractiveness of different approaches for GPGPU. You are deep in OpenCL and CUDA for this project, so can you give us estimation of new 7970 energy-efficiency in this particular kind of calculations? ( "Is it possible to take a look at some comparison charts for compute power of typical CPU and GPU for Einstein@Home-type of calculations?" ) I believe you have some info and measurements results. Sure OpenCL is yonger, and your version of this GPGPU-library is the first and may be not perfect yet. I don't even try to use it in war "AMD vs NVidia" as a benchmark.
                                                                                    I remember Jul 2011 we had been told at Hannover meeting that in average GPGPU is approximately 5 times more energy efficient than CPU. But one year passed: i7, AMD 7970, NVidia 680 and you OpenCL-library appeared. So please tell me like Holy Father to the parishioner: should I buy AMD GPU or not ( games only are not enough motivation for me :) ).

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                                                                                    Message 117519 - Posted 23 May 2012 21:44:13 UTC

                                                                                      Here are some tasks from my 7970 running one wu at a time while seti was down cos of their power grid failing.
                                                                                      http://einstein.phys.uwm.edu/results.php?hostid=5365549
                                                                                      The motherboard is an xfx780i with PCIe v2 16x slot.
                                                                                      the cpu is 3.6 P4 with ht on and running other cpu projects so the gpu is starved of cpu time to run einstein, so times are longer than should be,
                                                                                      I also have other problems with this pc having now had to go back one month with system restore which removed ccc 12.4 and BM 7:0:28
                                                                                      When i am shure the other problems are gone/fixed i will upgrade again and try again with einstein.
                                                                                      I built this system with ATI gpu so that it can run SETI VLAR workunits
                                                                                      einstein work was just for fun and fill in time,
                                                                                      I was lucky that E@H come up with OCL app in time :¬)

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                                                                                      Message 117528 - Posted 24 May 2012 12:22:13 UTC - in response to Message 117504.

                                                                                        No one but NVidia can use CUDA - this is wrong way.


                                                                                        I'd like to correct this one, while CUDA itself isn't an open standard like OpenCL, NVIDIA opened their LLVM-based CUDA compiler. This allows all interesting parties to target their GPUs, APUs and CPUs with CUDA. There is already a CUDA compiler targeting multi/many-core CPUs (by PGI). In this sense CUDA has now become a full-fledged competitor for OpenCL. It's now up to the Khronos Group to win this competition - as always, survival of the fittest...

                                                                                        I'm also in favor of open standards but they also need to deliver and be turned into marketable products. The best standard doesn't help if it's not adopted by a critical mass. If the Khronos Group would adopt something like the Java Community Process to develop the OpenCL standard itself things might work out, but right now they don't perform as they probably should in a competitive environment.


                                                                                        JM2C,
                                                                                        Oliver


                                                                                        PS: Back to topic! :-)

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                                                                                        Message 117537 - Posted 24 May 2012 20:27:39 UTC - in response to Message 117511.

                                                                                          just measurement, some statistics and a few ideas about attractiveness of different approaches for GPGPU.


                                                                                          You can compare HD79XX against my HD6950 here:
                                                                                          http://albert.phys.uwm.edu/workunit.php?wuid=75885
                                                                                          Computer 2209 runs a HD79XX
                                                                                          You are familiar with my configuration
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                                                                                          Message 117538 - Posted 24 May 2012 21:19:05 UTC - in response to Message 117537.

                                                                                            These two jobs are not really comparable tho: one is a brand-new (1.25) prototype for an OpenCL app specifically modified to cure validation problems of HD6900 series cards. It is slower than the previous version 1.24.

                                                                                            Cheers
                                                                                            HB



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                                                                                            Message 117540 - Posted 24 May 2012 21:28:49 UTC - in response to Message 117538.

                                                                                              These two jobs are not really comparable tho: one is a brand-new (1.25) prototype for an OpenCL app specifically modified to cure validation problems of HD6900 series cards. It is slower than the previous version 1.24.

                                                                                              Cheers
                                                                                              HB




                                                                                              1:45 @ Einstein (1.24) : 2:09 @ Albert (1.25)
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                                                                                              Message 117555 - Posted 26 May 2012 12:10:53 UTC - in response to Message 117540.

                                                                                                Bikeman, Oliver Bock, Alex and others - thank you all! I bought it. Let me share results of my new 7970, for Arecibo 1.24 atiOpenCL:
                                                                                                1 task on GPU (0.5 CPU + 1 ATI GPU): 18-25 min, GPU Load by GPU-Z 40-45% (although Catalist Control Center show "activity 60%"), CPU Load by W7 TaskManager - 5% (it is ~40% load of one core)
                                                                                                2 tasks on GPU (0.5 CPU + 0.5 ATI GPU): ~38 min, GPU Load by GPU-Z 58-62% (Catalist CC - 80-84%), CPU Load - 3%
                                                                                                Have no idea why dispersion (17-25 min) in the case of 1 task so large if tasks need equal(?) amount of calculation. CPU is not heavy loaded by other tasks.

                                                                                                Whatever... if we assume that "1.22 BRP4 SSE" and "1.24 atiOpenCL" need the same amount of calculations, then for one task even on PCIe2.0 GPU 7970 1GHz is ~20 times faster (and ~5-7 times more energy efficient) than my i7-2600k 4.5 GHz CPU. Good job!
                                                                                                And thank you for inducement me to by GPU, I am going to check the progress in game industry for the last 7-8 years.

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                                                                                                Message 117558 - Posted 26 May 2012 14:20:13 UTC - in response to Message 117555.

                                                                                                  Congratulations!
                                                                                                  To get the same results with my both cards I need to switch over to the 36h-day!
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                                                                                                  Message 117559 - Posted 26 May 2012 15:32:15 UTC

                                                                                                    You're welcome!

                                                                                                    We will continue to improve the ATi/AMD app, so that the energy efficiency should even go up some more in the not so distant future.

                                                                                                    Cheers
                                                                                                    HB
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                                                                                                    Message 117572 - Posted 26 May 2012 23:29:02 UTC - in response to Message 117555.

                                                                                                      Bikeman, Oliver Bock, Alex and others - thank you all! I bought it. Let me share results of my new 7970, for Arecibo 1.24 atiOpenCL:
                                                                                                      1 task on GPU (0.5 CPU + 1 ATI GPU): 18-25 min, GPU Load by GPU-Z 40-45% (although Catalist Control Center show "activity 60%"), CPU Load by W7 TaskManager - 5% (it is ~40% load of one core)
                                                                                                      2 tasks on GPU (0.5 CPU + 0.5 ATI GPU): ~38 min, GPU Load by GPU-Z 58-62% (Catalist CC - 80-84%), CPU Load - 3%
                                                                                                      Have no idea why dispersion (17-25 min) in the case of 1 task so large if tasks need equal(?) amount of calculation. CPU is not heavy loaded by other tasks.



                                                                                                      Nice. My rig isn't as buff but I can crunch one on average in 65 min (Catalyst GPU load 80%), but doing 2 tasks splits my GPU work between them taking 125 min (Catalyst GPU load 92%) to do both. Both ways uses 5% CPU load.

                                                                                                      Win 7Pro X64, i5-2500K CPU @ 3.30GHz (OC 4.5GHz), AMD HD6850, PCIe 2.0, 8GB 1600 RAM, BOINC 7.0.28

                                                                                                      Run time(sec) 3,739.87
                                                                                                      CPU time(sec) 530.31
                                                                                                      Claimed credit 6.90
                                                                                                      Granted credit 500.00

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                                                                                                      Message 117573 - Posted 26 May 2012 23:33:10 UTC - in response to Message 117555.


                                                                                                        And thank you for inducement me to by GPU, I am going to check the progress in game industry for the last 7-8 years.


                                                                                                        I'm a power-gamer and I use my gaming rig to crunch, thus my HD 6850. And the gaming industry has progressed a lot in the last 7-8 years. You should have fun. :)

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                                                                                                        Message 117778 - Posted 4 Jun 2012 22:05:05 UTC - in response to Message 117573.

                                                                                                          OK -- so I wonder about combinations.

                                                                                                          I've built up a farm with HD 4850's. I realize that advances in programming and drivers are pushing this card off the table.

                                                                                                          Not being inclined to spend excessive dollars either on cards, power supplies, and cooling, I'm looking at something like the HD 6750 (I realize I can't use that card with MilkyWay and so over time I'll fade away from that project as I'm unwilling to go with the high wattage high dollar newer DP AMD cards).

                                                                                                          But with Einstein, my impression is that I *can* use HD 6750 cards - *provided* I am not running Windows XP it seems as the BOINC client under XP doesn't believe the HD 6750 is a usable GPU (is that true or is it simply a driver of the month issue with AMD there -- I was trying the 12.4 driver for this).

                                                                                                          So, can some of the folks who've been there / done that confirm I can use an HD 6750 with Windows 7 and a BOINC client and have the BOINC client believe in the GPU tooth fairy? If so, which AMD driver of the month should I match to it?

                                                                                                          I also realize that the Einstein AMD GPU application currently *requires* the 'client of the week' BOINC beta -- (is that true??) Can someone confirm that as well.

                                                                                                          I tried the 6750 with an XP set up - no fun there -- and lot's of games to get the 12.4 driver out of the system since it (like a number of the AMD drivers of the month seems to really not like the HD 4850)

                                                                                                          So before I sink more time in the this HD 6750 test, I would like some feedback from folks.

                                                                                                          Thanks
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                                                                                                          Message 117780 - Posted 4 Jun 2012 22:38:42 UTC - in response to Message 117778.

                                                                                                            Sorry about the 4850s...but anyway the 6750 should do much better in terms of Flops/Watt. The 7750 and 7770 should be even better for E@H BOINC crunching, at a comparable price point and power consumption. They might be slower for gaming tho than equally expensive 6xxx cards AFAIK, but their "Graphics Core Next" architecture is more similar to NVIDIAs designs, and the BRP4 app happens to have its origins in the CUDA world.

                                                                                                            I don't know about XP, but under Windows 7, you will have no problems using these cards with BOINC.


                                                                                                            Yes, E@H currently requires a development version of BOINC for AMD/OpenCL apps, but the development cycles of BOINC are rather fast paced and this version or a newer one will be the official version quite soon if testing goes as expected.

                                                                                                            Cheers
                                                                                                            HB

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                                                                                                            Message 117781 - Posted 4 Jun 2012 23:29:07 UTC - in response to Message 117778.

                                                                                                              But with Einstein, my impression is that I *can* use HD 6750 cards - *provided* I am not running Windows XP it seems as the BOINC client under XP doesn't believe the HD 6750 is a usable GPU (is that true or is it simply a driver of the month issue with AMD there -- I was trying the 12.4 driver for this).

                                                                                                              So, can some of the folks who've been there / done that confirm I can use an HD 6750 with Windows 7 and a BOINC client and have the BOINC client believe in the GPU tooth fairy? If so, which AMD driver of the month should I match to it?

                                                                                                              I did some hunting down when I first started to read messages like this.

                                                                                                              I found that the 12.1 drivers for Windows XP (I tested the 32-bit version) unpack a folder

                                                                                                              C:\AMD\Support\12-1_xp32_dd_ccc\Packages\Apps\OpenCL

                                                                                                              That folder contains a file "OpenCL.msi", and the installer program offers an APP/SDK installation option, which would seem to be what you need for OpenCL runtime support and to enable BOINC's detection of the OpenCL capabilities for the card.

                                                                                                              I tried the same exercise with the 12.4 XP drivers - no OpenCL.msi file, no APP installation option.

                                                                                                              I'll leave it to someone else to test 12.2 and 12.3

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                                                                                                              Message 117811 - Posted 6 Jun 2012 14:12:30 UTC

                                                                                                                Vit,

                                                                                                                If you happen to catch this. Have you tried to see how it scales up to 3 tasks? Also which OS are you currently using?

                                                                                                                Oh, and the real energy efficiency is probably much higher than 5-7x, since you have you CPU OC'd to 4.5. Would think, IMHO, that it's probably around 8-9, maybe even 10. 4.5 is high enough that more juice is being drawn from the higher vcore.

                                                                                                                Nice runs BTW. Welcome to GPU crunching.

                                                                                                                Cheers

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                                                                                                                Message 117812 - Posted 6 Jun 2012 18:15:24 UTC

                                                                                                                  How can i see that my graphics card is used in computing.......?

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                                                                                                                  Message 117813 - Posted 6 Jun 2012 19:26:02 UTC - in response to Message 117812.

                                                                                                                    How can i see that my graphics card is used in computing.......?


                                                                                                                    It isn't:


                                                                                                                    2012-06-06 13:58:13.1561 [PID=19018] [version] Checking plan class 'atiOpenCL'
                                                                                                                    2012-06-06 13:58:13.1561 [PID=19018] [version] parsed project prefs setting 'gpu_util_brp' : false : 0.000000
                                                                                                                    2012-06-06 13:58:13.1562 [PID=19018] [version] ATI device (or driver) doesn't support OpenCL
                                                                                                                    2012-06-06 13:58:13.1562 [PID=19018] [version] Checking plan class 'atiOpenCL6900'
                                                                                                                    2012-06-06 13:58:13.1562 [PID=19018] [version] parsed project prefs setting 'gpu_util_brp' : false : 0.000000
                                                                                                                    2012-06-06 13:58:13.1562 [PID=19018] [version] ATI device name: 'ATI Radeon HD 5x00 series (Redwood)' doesn't match 'Radeon HD 6900'


                                                                                                                    KR
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                                                                                                                    Message 117863 - Posted 8 Jun 2012 14:50:17 UTC - in response to Message 117813.

                                                                                                                      How can i see that my graphics card is used in computing.......?


                                                                                                                      It isn't:


                                                                                                                      2012-06-06 13:58:13.1561 [PID=19018] [version] Checking plan class 'atiOpenCL'
                                                                                                                      2012-06-06 13:58:13.1561 [PID=19018] [version] parsed project prefs setting 'gpu_util_brp' : false : 0.000000
                                                                                                                      2012-06-06 13:58:13.1562 [PID=19018] [version] ATI device (or driver) doesn't support OpenCL



                                                                                                                      Seems to be a driver problem in this case. You should try to update it to the latest version. Does BOINC recognize your GPU (see BOINC's event log)?

                                                                                                                      Oliver

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                                                                                                                      Message 117865 - Posted 8 Jun 2012 19:01:58 UTC - in response to Message 117812.

                                                                                                                        How can i see that my graphics card is used in computing.......?

                                                                                                                        According to Hal6000's driver cheat sheet, you're running Cat 9.11 (1.4.467), this predates OpenCL support (even with the SDK), update your driver to something more recent, i suggest Cat 12.3,

                                                                                                                        Claggy

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                                                                                                                        Message 118092 - Posted 22 Jun 2012 14:53:27 UTC - in response to Message 117166.

                                                                                                                          We hope to have a version for Macintosh (Apple OS X 10.8, Mountain Lion) sometime this summer, but there are still some problems that need to be fixed or worked around.


                                                                                                                          Hurrah that there is work being done on OS X.

                                                                                                                          Is there a particular reason why Mountain Lion will be the minimum OS requirement?

                                                                                                                          Thanks!

                                                                                                                          Steve

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                                                                                                                          Message 118103 - Posted 23 Jun 2012 11:04:39 UTC - in response to Message 118092.

                                                                                                                            We hope to have a version for Macintosh (Apple OS X 10.8, Mountain Lion) sometime this summer, but there are still some problems that need to be fixed or worked around.


                                                                                                                            Hurrah that there is work being done on OS X.

                                                                                                                            Is there a particular reason why Mountain Lion will be the minimum OS requirement?

                                                                                                                            Thanks!

                                                                                                                            Steve


                                                                                                                            Actually, currently it looks as if we will have something that will work (at least) for "Lion" and up, for AMD/ATI GPUs. We are currently testing a release candidate at our test project, Albert@Home ( http://albert.phys.uwm.edu), results so far look perfect.

                                                                                                                            What took us so long was that Apple's implementation of the OpenCL standard had some ...well... very unique features (I'd call them bugs actually). We saw some improvements in the previews for Mountain Lion, and had initially hoped for a fix there (which are not always backported by Apple to earlier OSX releases) , but then we found a way to work around the problem.

                                                                                                                            Stay tuned.

                                                                                                                            HB



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                                                                                                                            Message 118222 - Posted 1 Jul 2012 6:01:25 UTC

                                                                                                                              FYI:

                                                                                                                              BOINC has made version 7.0.28 the "official", recommended version, so you no longer need a developer version of BOINC to run AMD/ATI OpenCL apps.

                                                                                                                              Cheers
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                                                                                                                              Message 118291 - Posted 5 Jul 2012 11:26:13 UTC - in response to Message 117781.

                                                                                                                                Following my earlier report, it's now been confirmed by AMD that OpenCL runtime support has been removed from Windows XP drivers, despite what it says on the download page: source http://devgurus.amd.com/message/1282438#1282438.

                                                                                                                                In that forum, Sirish Kumar says that support was removed "from Cat-12.4 (8.961) onwards", but in practice it's missing in 12.2 and 12.3 as well.

                                                                                                                                So, the last Catalyst download usable here on Windows XP is 12.1

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                                                                                                                                Message 118310 - Posted 5 Jul 2012 22:37:04 UTC

                                                                                                                                  HAL6000 also updated his driver list today.

                                                                                                                                  http://www.hal6000.com/seti/boinc_ati_gpu_cheat_sheet.htm
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                                                                                                                                  Message 118544 - Posted 25 Jul 2012 21:36:33 UTC - in response to Message 118103.

                                                                                                                                    We hope to have a version for Macintosh (Apple OS X 10.8, Mountain Lion) sometime this summer, but there are still some problems that need to be fixed or worked around.


                                                                                                                                    Hurrah that there is work being done on OS X.

                                                                                                                                    Is there a particular reason why Mountain Lion will be the minimum OS requirement?

                                                                                                                                    Thanks!

                                                                                                                                    Steve


                                                                                                                                    Actually, currently it looks as if we will have something that will work (at least) for "Lion" and up, for AMD/ATI GPUs. We are currently testing a release candidate at our test project, Albert@Home ( http://albert.phys.uwm.edu), results so far look perfect.

                                                                                                                                    What took us so long was that Apple's implementation of the OpenCL standard had some ...well... very unique features (I'd call them bugs actually). We saw some improvements in the previews for Mountain Lion, and had initially hoped for a fix there (which are not always backported by Apple to earlier OSX releases) , but then we found a way to work around the problem.

                                                                                                                                    Stay tuned.

                                                                                                                                    HB




                                                                                                                                    Just installed Mountain Lion, now I am looking forward to receiving my first WU for ATI GPU.

                                                                                                                                    Ni!
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                                                                                                                                    Profile `COMMUNISTIS G. KALEMAKIS
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                                                                                                                                    Message 127401 - Posted 11 Oct 2013 19:55:42 UTC - in response to Message 117166.

                                                                                                                                      [url][/url][img][/img][list=]

                                                                                                                                        [quote][u][i][b][size=12][/size][color=blue][/color] Γιατι κυριοι δεν εμφανιζεται την εικονα του προφιλ μου? στη σεληδα προφιλ συμετεχων!ανα χωρα, και γιατι τα γραμματα ειναι κρυπτογραφικα! υπαρχη σκεψη μου να σταματησω να τρεχω το εργο σας απο τους υπολογιστες μου αν δεν εμανισεται αμεσως την εικονα και τα γραμματα του προφιλ μου! εχαριστω.ΓΕΩΡΓΙΟΣ ΚΑΛΕΜΑΚΗΣ[/b][/i][/u][/quote]

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                                                                                                                                      Message 127403 - Posted 12 Oct 2013 8:52:52 UTC - in response to Message 127401.

                                                                                                                                        Γιατι κυριοι δεν εμφανιζεται την εικονα του προφιλ μου? στη σεληδα προφιλ συμετεχων!ανα χωρα, και γιατι τα γραμματα ειναι κρυπτογραφικα! υπαρχη σκεψη μου να σταματησω να τρεχω το εργο σας απο τους υπολογιστες μου αν δεν εμανισεται αμεσως την εικονα και τα γραμματα του προφιλ μου! εχαριστω.ΓΕΩΡΓΙΟΣ ΚΑΛΕΜΑΚΗΣ


                                                                                                                                        Google translation:

                                                                                                                                        Why Lord did not display the image in my profile; We participate in selida profiles! per country, and why the letters It encrypts! There my thoughts stopped running your project of my computers if not immediately emanisetai the image and the letters of my profile! echaristo.GEORGIOS KALEMAKIS

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                                                                                                                                        This material is based upon work supported by the National Science Foundation (NSF) under Grants PHY-1104902, PHY-1104617 and PHY-1105572 and by the Max Planck Gesellschaft (MPG). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the investigators and do not necessarily reflect the views of the NSF or the MPG.

                                                                                                                                        Copyright © 2014 Bruce Allen