Would it not be more accurate to say that the compiler used for the Linux copy of the application beat out the one used for Windows?
Surely you don't think either OS has anywhere near 5% inherent overhead for this sort of work?
Can be.
That particular outcome (Linux being faster than Win) was due to bug in Windows clustering software or somesuch. When they ran Linpack benchmarking software, Windows was not able to run it on all nodes while Linux was able to do it. When they ran it on 90% of nodes (or something like that), Windows was in fact a bit faster than Linux. They have reportedly squashed the bug that prevented them from running benchmark on all nodes but that was to late for publishing result.
I can replicate the occurrence right now by starting up 2 more apps, in v10.10, on the i7.
If consistently repeatable, then that must be a bug of some sort that needs tracing and squashing! I'm sure the kernel devs list will be interested in that one.
Just today I've encountered something similar on Ubuntu 10.04: keyboard seemed to be dead. It was not really, I could switch to console using [ctrl]-[alt]-[F1] and keyboard was working there. When switching back to X, keyboard went dead.
The culprit was hung rdesktop application. When I forcibly terminated that app, keyboard returned to life. I guess many (if not every) app could lock up keyboard under X ...
[edit]
BTW, Ubuntu LTS happens every 2 years. Current LTS is 10.04, so next LTS will be 12.04. If they stick to half-year release cycle, which they are re-considering.
[/edit]
... One reader who commented on the blog post joked that Tokyo officials "didn't have enough licenses to run [Windows] on that many."
But it turns out a software bug prevented the Windows HPC Server run from matching Linux's speed and ability to run across more nodes. The bug was not in Windows HPC Server itself but rather in a software package Microsoft designed to run the Top 500 benchmarking test. ...
... the Windows run failed due to a memory initialization bug. ...
... Whether Windows would have beaten Linux if not for the software bug is "a mystery that's engulfed in history, because they failed at the very last moment," he says.
Matsuoka is interested in why Windows was able to outperform Linux in running smaller problems. Since the hardware was the same for both runs, it must come down to either the operating system or differences between the customized Linpack software packages.
"We haven't had the time to do the side-by-side comparison," Matsuoka says. "We'll probably do that and publish a paper." ...
Been a while, I know. But, I believe I have found the ultimate reason for my problem on the i7...
nVIDIA has a bug or bugs in all the drivers for this video card!
1.) I install the one from the CD, that came with the card... problem!
2.) I install an updated version from the manufacturers website... problem.
3.) I find an even newer updated version on nVIDIA's website and install it... problem.
Without nVIDIA's driver(s) installed, there seems to be no problem, up to the point where Windoze insists on installing nVIDIA's driver(s). I feel like I'm in a catch 22 situation and it SUX!
I have yet to install BOINC since doing my clean install. I wanted to check the performance before I did that.
Is there a "generic" Windows video driver that I can use and keep nVIDIA out of the loop? I really do not need all the "extras" that comes with having nVIDIA installed. I have one more idea I'm going to try. I'm going to uninstall the driver from within properties.
Keep on BOINCing...! :) (perhaps someday, again, on the i7)
Also XP is about to be dumped as far as Windows Updates goes, meaning it will be wide open to all viruses, trojans, etc, etc because MS will NOT be providing updates. Just as happened to Windows 2000 and 98 etc, etc. You MUST update and win7 IS a good choice!
Not true on all counts Mikey.
I have run Win2K pro on a PC and not had any attacks that my hardware and software firewall cannot deal with. True, it has had no MS patches since June last year, but security can be maintained without them.
Microsoft will be supporting XP with security patches until March 2014.
Shih-Tzu are clever, cuddly, playful and rule!! Jack Russell are feisty!
Is there a "generic" Windows video driver that I can use and keep nVIDIA out of the loop? I really do not need all the "extras" that comes with having nVIDIA installed. I have one more idea I'm going to try. I'm going to uninstall the driver from within properties.
Did you try the Custom install (choose components + clean install)?:
The problem? I'm starting to think I haven't figured out the problem. With one minor annoyance, as long as I keep the uptime of this i7 under 36 hours, it works fine. The minor problem has recently manifested and is the same as that which I mentioned long ago in this thread. My cursor will suddenly jump across the screen. While on a website, occasionally if I just move my mouse the slightest, the website will jump back a page or 2 as if I hit the back button, which I do not do.
Now, with this new video card, I'm seeing the same thing. I thought it was the old card, since the problem stopped when I installed this new one. Now, I'm not so sure the old one was the problem either. I have run torture tests on my hardware and no problems are ever revealed. I am at a loss as to what is wrong, which is why I suspect the video driver.
Yes, I have downloaded and tried v260.99 of the video driver. I get the exact same results, no problem gets cleared up.
And FRAKING Windoze!!! I try to cancel out of installing any video driver and it somehow installs nVIDIA!!! Without MY consent! :( Now I have nVIDIA's control panel and no way to get rid of it. It doesn't show up in Add/Remove Programs. Where Windoze is getting nVIDIA is beyond me. It's not getting it from the CD and the update driver is on my second HDD.
I'm thinking that I am going to have to start from scratch, again, with a fresh clean install of Windoze... :( I really hate that "Found new hardware" routine, too, especially in a case where I am trying to figure out where a problem exists. I have NEVER had this much of a problem with a computer before.
Anyway, I try your suggestion and post an update. Thanks! :)
Keep on BOINCing...! :) (only on my Linux PC!)
I will try your custom install suggestion and see if that gets me anywhere.
Occaisionally my mouse will jump around a bit while I am doing Einstein. It is a very CPU intensive application, and it may not release the resources easily as it is pegged at 100% usage.. Also, I think you should go ahead and install the latest Nvidia driver. Without that, your video card won't crunch at all, and certainly won't respond correctly in other situations. The jumping mouse may be something you just have to live with. Mine does it to from time to time.
RE: RE: RE: however
)
That particular outcome (Linux being faster than Win) was due to bug in Windows clustering software or somesuch. When they ran Linpack benchmarking software, Windows was not able to run it on all nodes while Linux was able to do it. When they ran it on 90% of nodes (or something like that), Windows was in fact a bit faster than Linux. They have reportedly squashed the bug that prevented them from running benchmark on all nodes but that was to late for publishing result.
Metod ...
RE: RE: I can replicate
)
Just today I've encountered something similar on Ubuntu 10.04: keyboard seemed to be dead. It was not really, I could switch to console using [ctrl]-[alt]-[F1] and keyboard was working there. When switching back to X, keyboard went dead.
The culprit was hung rdesktop application. When I forcibly terminated that app, keyboard returned to life. I guess many (if not every) app could lock up keyboard under X ...
[edit]
BTW, Ubuntu LTS happens every 2 years. Current LTS is 10.04, so next LTS will be 12.04. If they stick to half-year release cycle, which they are re-considering.
[/edit]
Metod ...
RE: They have reportedly
)
Sounds like I was wrong in blaming the compiler, but possibly right in doubting this was some fundamental Windows efficiency flaw?
RE: RE: They have
)
Well, looks like the full story can be read in various ways...
Software bug derailed Windows bid to top Linux in supercomputing speed
... One reader who commented on the blog post joked that Tokyo officials "didn't have enough licenses to run [Windows] on that many."
But it turns out a software bug prevented the Windows HPC Server run from matching Linux's speed and ability to run across more nodes. The bug was not in Windows HPC Server itself but rather in a software package Microsoft designed to run the Top 500 benchmarking test. ...
... the Windows run failed due to a memory initialization bug. ...
... Whether Windows would have beaten Linux if not for the software bug is "a mystery that's engulfed in history, because they failed at the very last moment," he says.
Matsuoka is interested in why Windows was able to outperform Linux in running smaller problems. Since the hardware was the same for both runs, it must come down to either the operating system or differences between the customized Linpack software packages.
"We haven't had the time to do the side-by-side comparison," Matsuoka says. "We'll probably do that and publish a paper." ...
Makes for an interesting story!...
Happy crunchin',
Martin
See new freedom: Mageia Linux
Take a look for yourself: Linux Format
The Future is what We all make IT (GPLv3)
Greetings everyone, ***
)
Greetings everyone,
*** UPDATE ***
Been a while, I know. But, I believe I have found the ultimate reason for my problem on the i7...
nVIDIA has a bug or bugs in all the drivers for this video card!
1.) I install the one from the CD, that came with the card... problem!
2.) I install an updated version from the manufacturers website... problem.
3.) I find an even newer updated version on nVIDIA's website and install it... problem.
Without nVIDIA's driver(s) installed, there seems to be no problem, up to the point where Windoze insists on installing nVIDIA's driver(s). I feel like I'm in a catch 22 situation and it SUX!
I have yet to install BOINC since doing my clean install. I wanted to check the performance before I did that.
Is there a "generic" Windows video driver that I can use and keep nVIDIA out of the loop? I really do not need all the "extras" that comes with having nVIDIA installed. I have one more idea I'm going to try. I'm going to uninstall the driver from within properties.
Keep on BOINCing...! :) (perhaps someday, again, on the i7)
CAPT Siran d'Vel'nahr XO
USS Vre'kasht NCC-33187
Siran's website: [ ONLINE! ]
RE: Also XP is about to be
)
Not true on all counts Mikey.
I have run Win2K pro on a PC and not had any attacks that my hardware and software firewall cannot deal with. True, it has had no MS patches since June last year, but security can be maintained without them.
Microsoft will be supporting XP with security patches until March 2014.
Shih-Tzu are clever, cuddly, playful and rule!! Jack Russell are feisty!
What is the "...
)
What is the "... problem!"?
Try the small tests ("demos") in:
[GPU Tool] GPU Caps Viewer and GPU Shark (4 MB, no install needed if you get the ZIP file)
http://www.ozone3d.net/gpu_caps_viewer/
http://www.geeks3d.com/20101105/gpu-tool-gpu-caps-viewer-1-9-4-and-gpu-shark-0-3-2-updated-with-gtx-580-support/
(Shows also GPU capabilities and Temperatures)
Is this the last driver you try?:
http://www.nvidia.com/object/winxp-260.99-whql-driver.html
[pre] [/pre]
RE: Is there a "generic"
)
Did you try the Custom install (choose components + clean install)?:
http://blogs.nvidia.com/2010/09/introducing-the-release-260-family-of-drivers/
[pre] [/pre]
RE: What is the "...
)
Greetings BilBG,
The problem? I'm starting to think I haven't figured out the problem. With one minor annoyance, as long as I keep the uptime of this i7 under 36 hours, it works fine. The minor problem has recently manifested and is the same as that which I mentioned long ago in this thread. My cursor will suddenly jump across the screen. While on a website, occasionally if I just move my mouse the slightest, the website will jump back a page or 2 as if I hit the back button, which I do not do.
Now, with this new video card, I'm seeing the same thing. I thought it was the old card, since the problem stopped when I installed this new one. Now, I'm not so sure the old one was the problem either. I have run torture tests on my hardware and no problems are ever revealed. I am at a loss as to what is wrong, which is why I suspect the video driver.
Yes, I have downloaded and tried v260.99 of the video driver. I get the exact same results, no problem gets cleared up.
And FRAKING Windoze!!! I try to cancel out of installing any video driver and it somehow installs nVIDIA!!! Without MY consent! :( Now I have nVIDIA's control panel and no way to get rid of it. It doesn't show up in Add/Remove Programs. Where Windoze is getting nVIDIA is beyond me. It's not getting it from the CD and the update driver is on my second HDD.
I'm thinking that I am going to have to start from scratch, again, with a fresh clean install of Windoze... :( I really hate that "Found new hardware" routine, too, especially in a case where I am trying to figure out where a problem exists. I have NEVER had this much of a problem with a computer before.
Anyway, I try your suggestion and post an update. Thanks! :)
Keep on BOINCing...! :) (only on my Linux PC!)
I will try your custom install suggestion and see if that gets me anywhere.
CAPT Siran d'Vel'nahr XO
USS Vre'kasht NCC-33187
Siran's website: [ ONLINE! ]
Occaisionally my mouse will
)
Occaisionally my mouse will jump around a bit while I am doing Einstein. It is a very CPU intensive application, and it may not release the resources easily as it is pegged at 100% usage.. Also, I think you should go ahead and install the latest Nvidia driver. Without that, your video card won't crunch at all, and certainly won't respond correctly in other situations. The jumping mouse may be something you just have to live with. Mine does it to from time to time.
Steve
Crunching as member of The GPU Users Group team.
