Posts by Claggy

1) Message boards : Problems and Bug Reports : Android app release: feedback thread (Message 135609)
Posted 32 minutes ago by Claggy
I'm running into a bit of a problem, where the tasks run for 3 minutes, then seem to reset themselves at 0 min 0 sec crunch time, with completion never going over 0.0% complete. It's got itself looped indefinitely in restarting the tasks.


Having the same issue with this host. The tasks don't even run at all unless I expand them in the Tasks window. Then the Elapsed Time starts, but it goes back to 0:00 after a second or two. After numerous retries, it starts counting up but doesn't get far. I have one task that keeps going back to 00:00 after a few seconds, another resets to 01:08, another to 02:26 etc. So this host has zero completion after over a week. Had a RAC of about 150 with SETI@Home and no issues with task completion.

Motorola Moto G XT1032, updated to Android 4.4.4 kernel 3.4.42.

Restart the phone,

I see this intermittently on my 2012 HTC One S running Android 4.1.1, Only restarting the phone gets Boinc apps progressing again.

Claggy
2) Message boards : Cruncher's Corner : can you tell me something about error rates in the various einstein tasks? (Message 135392)
Posted 4 days ago by Claggy
--edit
It seems that both of them are being reported to Einstein as Tahiti.
I guess I have to watch as they clear thru the system.
Thanks though.

The server only shows the most Capable GPUs (for each vendor), so it'll only display that your host has Tahiti GPUs, even through the 2nd AMD/ATI GPU is a Pitcairn,

Claggy
3) Message boards : Problems and Bug Reports : Anonymous platform -- app_info.xml -- developer help needed (Message 135389)
Posted 4 days ago by Claggy
I manage to create an app_info.xml file and validate same wus with a freescale i.MX6q (Cortex-A9) SoC board (here).


Does the Stock app for Arm work on that host?

If your Boinc client is running a different platform, you could try adding an <alt_platform>arm-unknown-linux-gnueabihf</alt_platform> option to your cc_config.xml to see if it'll run:

Client_configuration

<alt_platform>platform_name</alt_platform>
Specify an alternate platform name, to be included in scheduler requests. New in 5.10.26


Claggy
4) Message boards : Problems and Bug Reports : Stuck in endless loop (Message 135384)
Posted 4 days ago by Claggy
Do you have 'Leave tasks in memory while suspended?' and 'Suspend work while computer is in use?' set to 'Yes' or 'No' in your computing preferences?,

If you're got 'Leave tasks in memory while suspended?' set to 'No' every time you interrupt the computer, the app will exit fully, and start from the last checkpoint next time it starts,

Einstein apps often checkpoint infrequently, so having 'Leave tasks in memory while suspended?' to 'Yes' is essential.

Claggy
5) Message boards : Cruncher's Corner : can you tell me something about error rates in the various einstein tasks? (Message 135382)
Posted 4 days ago by Claggy
Is there a way to tell from the data available which device, 0 or 1 or both is the culprit on that machine.

Read the stderr.txt:

<core_client_version>7.2.42</core_client_version>
<![CDATA[
<stderr_txt>
Activated exception handling...
[20:45:49][3264][INFO ] Starting data processing...
[20:45:49][3264][INFO ] Using OpenCL platform provided by: Advanced Micro Devices, Inc.
[20:45:49][3264][INFO ] Using OpenCL device "Pitcairn" by: Advanced Micro Devices, Inc.
[20:45:50][3264][INFO ] Checkpoint file unavailable: status.cpt (No such file or directory).
------> Starting from scratch...


Or:

<core_client_version>7.2.42</core_client_version>
<![CDATA[
<stderr_txt>
Activated exception handling...
[16:37:06][3080][INFO ] Starting data processing...
[16:37:07][3080][INFO ] Using OpenCL platform provided by: Advanced Micro Devices, Inc.
[16:37:07][3080][INFO ] Using OpenCL device "Tahiti" by: Advanced Micro Devices, Inc.
[16:37:07][3080][INFO ] Checkpoint file unavailable: status.cpt (No such file or directory).
------> Starting from scratch...


Claggy
6) Message boards : Cruncher's Corner : Milestones V (Message 135326)
Posted 5 days ago by Claggy
I seem to have managed 50,000 when I wasn't looking, Every little helps as they say.


Congrats,

I finally managed to pass One million, all my Arm hosts were going to get me past that mark in a few weeks, But my desktop hosts have been visiting and beaten them to it.

Claggy
7) Message boards : Cruncher's Corner : CUDA 6.5? (Message 135227)
Posted 6 days ago by Claggy
What about such scenario:
Deprecate CUDA 3.2 app and replace with CUDA 5.5
If CUDA 6.5 brings reasonable performance (or other) advantages make an app for it and maintain in parallel (send only to those hosts which support it). Would that be too much effort ?

Why would you want to deprecate the Cuda32 version?, it would mean all hosts on Cuda32, Cuda40, Cuda42 and Cuda50 drivers would no longer get work,
To run a Cuda55 app you have to have drivers that support that version of the Cuda SDK.

Claggy
8) Message boards : Cruncher's Corner : GPU error message (Message 135222)
Posted 6 days ago by Claggy
Could any one give me a clue as to what is wrong and what to do?

You're not trying to use remote desktop are you?

Claggy
9) Message boards : Cruncher's Corner : Mac Intel HD4000 GPU question (Message 135220)
Posted 6 days ago by Claggy
Is this related to why the Intel GPU isn't working? Am I doing something wrong, or are the drivers not available? (I would suggest it on the wish list if its easy to do then).

Einstein doesn't have an Intel GPU app for the Mac deployed here, the only one deployed here is for Windows on the Binary Radio Pulsar Search (Arecibo) sub-project.

You could attached to the Albertathome test project, there is an Intel GPU app deployed there, but only for the Gamma-ray pulsar search #3 sub-project:

http://albert.phys.uwm.edu/apps.php

Gamma-ray pulsar search #3 Platform Version Created Average computing Mac OS X on Intel 1.12 (FGRPopencl-intel_gpu-lion) 11 Jul 2014, 6:27:36 UTC 5 GigaFLOPS


Claggy
10) Message boards : Cruncher's Corner : wasted time (Message 134888)
Posted 12 days ago by Claggy
See the other thread for analysis.

Claggy


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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