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Sleepy
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Message 22358 - Posted: 7 May 2016, 16:18:41 UTC

I use to suspend and restart CPU Collatz 1.20 WUs (e.g. on this Win7 http://boinc.thesonntags.com/collatz/show_host_detail.php?hostid=558369 PC).

Very many times, on restart they exit with a computation error. So much, that I very rarely manage to end a CPU WU.

Does this happen to you as well? Advice (apart obviously leaving the tasks graciously end without tampering them ;-) )? Remedies?

Thank you in advance!

Sleepy

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Message 22366 - Posted: 9 May 2016, 14:27:12 UTC - in response to Message 22358.

The error that you are getting is "out of memory". Can you tell from the time stamp on the log whether that occurs when it suspends or when it resumes?

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Message 22370 - Posted: 9 May 2016, 17:02:52 UTC - in response to Message 22366.

The error that you are getting is "out of memory". Can you tell from the time stamp on the log whether that occurs when it suspends or when it resumes?


Thank you for your help.

When it resumes.

This PC suffers of some BSOD events, so I am investigating also their reason.
Nevertheless, I never get a BSOD when the program errors out with Collatz.
I am just reporting also this, in case it were a RAM related problem (but I carried out a Memtest lately, with no suspicious results).

I am switching back and forth with a very "optimized" (at least in my intentions) and demanding Seti@home set-up.

Today I made some arrangements to let some CPU tasks which restarted without errors to go till the end without further switching and I managed to complete them. But the risk is still always there when restarting.

Crunch on!

Sleepy

dp
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Message 22387 - Posted: 12 May 2016, 21:38:10 UTC

I too have had many computation errors on the gpu side.
The CPU tasks run without a problem.

I have reset the program, disconnected/reconnected, updated BOINC and virtualbox with no improvement.

Any suggestions?
dp

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Message 22393 - Posted: 13 May 2016, 15:10:29 UTC - in response to Message 22387.

I too have had many computation errors on the gpu side.
The CPU tasks run without a problem.

I have reset the program, disconnected/reconnected, updated BOINC and virtualbox with no improvement.

Any suggestions?
dp


I had the same problem and wasn't interested in figuring it out. So I disabled GPU work for the project.
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~Kathryn~

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Message 22394 - Posted: 13 May 2016, 18:08:37 UTC

Try using the following parameters in the Collatz config file. It will reduce the amount of system and GPU RAM.

verbose=1
kernels_per_reduction=16
threads=6
lut_size=10
sleep=1
reduce_cpu=0
sieve_size=22

dp
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Message 22406 - Posted: 15 May 2016, 21:19:12 UTC

Thanks for getting back.

I'm no programmer nor have any aspirations to do so.

I cant find the COLLAZ config file? Do I add these parameters in the Config.xml? or is there COLLAZ specific file I'm unaware of?

dp

Geoffrey Yeung
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Message 22417 - Posted: 19 May 2016, 15:54:29 UTC

For me (Windows 7), it's collatz_sieve_1.21_windows_x86_64__opencl_nvidia_gpu.config under C:\ProgramData\BOINC\projects\boinc.thesonntags.com_collatz\

The exact file depends on which app you're running run.


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