Gerasim is not working

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Demis

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Message 4171 - Posted: 23 Jan 2026, 22:55:41 UTC - in response to Message 4170.  

Now it works.
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Profile Conan
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Message 4172 - Posted: 25 Jan 2026, 22:52:04 UTC

All my Nvidia work units fail with this message

Boinc Manager 8.2.8
<message>
exceeded elapsed time limit 1137.91 (100000.00G/87.88G)</message>
<stderr_txt>
GPU Summary String = [CUDA|GeForceGT730|1|2048MB|46192|102].
Loading GPU lookup table from file.
GPU was not found in the lookup table. Using default values:
numBlocks = 1024.
threadsPerBlock = 32.
polyBufferSize = 32768.
Successfully Built Program.
Successfully Created Stage 1 Kernel: pdtKernelSubResultantInit.
Successfully Created Stage 1 Kernel: pdtKernelSubResultantDegB8.
Successfully Created Stage 1 Kernel: pdtKernelSubResultantMpInit.
Successfully Created Stage 1 Kernel: pdtKernelSubResultantDegB7DegA9.
Successfully Created Stage 1 Kernel: pdtKernelSubResultantDegB7DegA8.
Successfully Created Stage 1 Kernel: pdtKernelSubResultantDegB6DegA9.
Successfully Created Stage 1 Kernel: pdtKernelSubResultantDegB6DegA8.
Successfully Created Stage 1 Kernel: pdtKernelSubResultantDegB6DegA7.
Successfully Created Stage 1 Kernel: pdtKernelSubResultantDegB5.
Successfully Created Stage 1 Kernel: pdtKernelSubResultantDegB4.

Successfully Created Stage 2 Kernel: pdtKernelDiv2.
Successfully Created Stage 2 Kernel: pdtKernelDiv5.
Successfully Created Stage 2 Kernel: pdtKernelDivP.

Successfully Created Stage 3 Kernel.

Successfully Created Polynomial Memory Buffer.
Successfully Created Output Flag Memory Buffer.
Successfully Created Discriminant Data Buffer.
Successfully Created PolyA Data Buffer.
Successfully Created PolyB Data Buffer.
Successfully Created DegA Data Buffer.
Successfully Created DegB Data Buffer.
Successfully Created G Data Buffer.
Successfully Created H Data Buffer.
Successfully Created mpA Data Buffer.
Successfully Created mpB Data Buffer.

OpenCL initialization was successful.
CHECKPOINT_FILE = sf7_DS-16x12-11_Grp644604of3125000_245838365_0.wu_checkpoint.
Checkpoint Flag = 0.
Reading file in
K = x^2 + 10
S = [2, 5]
Disc Bound = 3200000000000000
Skip = (P^5)*(Q^5)
Num Congruences = 16
SCALE = 1.000000
|dK| = 40
Signature = [0,1]
Opening output file out
Now starting the targeted Martinet search:
Num Cvecs = 16.
Doing Cvec 1.
Doing Cvec 2.
Doing Cvec 3.

</stderr_txt>

All hit the same run time (to the second) and time out, my AMD runs fine.

Conan
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Profile Eric Driver
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Message 4173 - Posted: 26 Jan 2026, 0:53:35 UTC - in response to Message 4172.  

All my Nvidia work units fail with this message

Boinc Manager 8.2.8

exceeded elapsed time limit 1137.91 (100000.00G/87.88G)


All hit the same run time (to the second) and time out, my AMD runs fine.

I think it's hitting the "rsc_fpops_bound" limit and then getting killed. I thought this bound was set conservatively, but I could revisit it. Either way, I don't think the parameter can be changed in the current set of WUs, but I can increase it in the next batch.

Is it possible your benchmarks think your GPU is much faster than it really is? The benchmarks are used to convert the FLOPS bound into a time bound, and 1138 sec sounds too fast for your card. Maybe you could rerun benchmarks, or find a way to spoof them to make your GPU look slower.
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Demis

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Message 4174 - Posted: 26 Jan 2026, 5:08:57 UTC - in response to Message 4173.  
Last modified: 26 Jan 2026, 5:49:58 UTC

I thought this bound was set conservatively, but I could revisit it. Either way, I don't think the parameter can be changed in the current set of WUs, but I can increase it in the next batch.
GeForceGT730
This card was released 12 years ago.
It has only 384 CUDA cores.
This is likely insufficient to calculate the task on time.
It currently finishes after 18 minutes.
It's understandable why different people might have such cards for free calculations.

We see that it's interrupted at stage 3.
Although the longest stage seems to be at stage 13.

(I have a draft script that can make this change to published tasks on a Linux server, but not for Widnows Server. And writing something like this for Windows would certainly be a disaster...)

I think it's better to increase the limits for subsequent batches.

Especially since we haven't yet officially announced that we've fully restored the server.

(Last week, I ran various tests on the RTX4060, including changes to gpuLookupTable.txt. I can post the logs, but they're very, very long. I don't think that's suitable for a forum thread like this. To put it briefly: the default settings run for about 4 minutes on average. The best settings showed a runtime of 08:53:16-08:53:28, or 12 seconds. If I haven't messed something up.)
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Message 4175 - Posted: 26 Jan 2026, 9:03:20 UTC

Thanks Erik and Demis

Don't worry too much about it, I was curious more than anything.

The card is still put in computers that are set up as a cheaper entry point and it is mainly used for doing BOINC.
It is my brothers computer so I will see if I can source a cheap 4060 or 5060 and get it too him, it will be better at the games he sometimes plays anyway.

Thanks again
Conan
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Message 4176 - Posted: 26 Jan 2026, 16:28:07 UTC - in response to Message 4175.  

Thanks Erik and Demis

Don't worry too much about it, I was curious more than anything.

The card is still put in computers that are set up as a cheaper entry point and it is mainly used for doing BOINC.
It is my brothers computer so I will see if I can source a cheap 4060 or 5060 and get it too him, it will be better at the games he sometimes plays anyway.

Thanks again
Conan

I bumped up the rsc_fpops_bound in the template file just for good measure, so newer batches are allowed to run longer.

But one thing that's worrisome is that NumberFields uses the exact same template file and hasn't had this problem in many years. So I wonder if there's something else different between Gerasim and NumberFields server settings that is causing this, maybe a difference in version or a config parameter.

@Conan: Have you used this card on a NumberFields WU and does it exhibit the same behavior? Can you compare the "Measured floating point speed" under computer details between NumberFields and Gerasim to see if there is a big difference?
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Grant (SSSF)

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Message 4177 - Posted: 27 Jan 2026, 7:07:53 UTC - in response to Message 4173.  

Is it possible your benchmarks think your GPU is much faster than it really is? The benchmarks are used to convert the FLOPS bound into a time bound, and 1138 sec sounds too fast for your card. Maybe you could rerun benchmarks, or find a way to spoof them to make your GPU look slower.
Only the CPU has benchmarking to determine it's actual performance.
With GPUs it's hard coded using the GFLOPs reported by the driver, from the video card.
Grant
Darwin NT, Australia.
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Grant (SSSF)

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Message 4178 - Posted: 27 Jan 2026, 7:12:21 UTC - in response to Message 4174.  
Last modified: 27 Jan 2026, 7:14:53 UTC

I thought this bound was set conservatively, but I could revisit it. Either way, I don't think the parameter can be changed in the current set of WUs, but I can increase it in the next batch.
GeForceGT730
This card was released 12 years ago.
It has only 384 CUDA cores.
It is also an abomination.
Some cards used GDDR5, others DDR3!

It's OK as a video card, but it's useless for compute work.
Grant
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mmonnin

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Message 4179 - Posted: 31 Jan 2026, 13:03:41 UTC - in response to Message 4176.  

Thanks Erik and Demis

Don't worry too much about it, I was curious more than anything.

The card is still put in computers that are set up as a cheaper entry point and it is mainly used for doing BOINC.
It is my brothers computer so I will see if I can source a cheap 4060 or 5060 and get it too him, it will be better at the games he sometimes plays anyway.

Thanks again
Conan

I bumped up the rsc_fpops_bound in the template file just for good measure, so newer batches are allowed to run longer.

But one thing that's worrisome is that NumberFields uses the exact same template file and hasn't had this problem in many years. So I wonder if there's something else different between Gerasim and NumberFields server settings that is causing this, maybe a difference in version or a config parameter.

@Conan: Have you used this card on a NumberFields WU and does it exhibit the same behavior? Can you compare the "Measured floating point speed" under computer details between NumberFields and Gerasim to see if there is a big difference?


The latest BOINC clients give a much higher benchmark compared to older versions. Like 10x
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Grant (SSSF)

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Message 4180 - Posted: 1 Feb 2026, 1:34:26 UTC

For reference, i found a GT 720 that successfully completed a Task.
10hrs 35 min

Better to not use it at all IMHO.
Grant
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Message 4181 - Posted: 1 Feb 2026, 12:49:59 UTC

Is it normal for all my work units (that are still on my computer, 53 of them) to be wiped from my account on Gerasim?

If I continue to run them will they be credited or do they disappear into the ether and not be counted?

This has happened before more than once.

Thanks
Conan
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Demis

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Message 4182 - Posted: 2 Feb 2026, 19:12:29 UTC - in response to Message 4181.  

I think this is normal.
Yesterday, the database was completely cleared of test tasks.
All completed and received tasks have been awarded points.

Attention.
We're experiencing some kind of glitch in our provider's internal network today!
A request has been sent to the provider.
Judging by the diagnostics, this is the same event as the one mentioned in the post about magic:
https://numberfields.asu.edu/NumberFields/forum_thread.php?id=667&postid=4093#4093
We apologize.
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Message 4183 - Posted: 3 Feb 2026, 2:41:48 UTC - in response to Message 4182.  

Hi, Eric.
****
Tasks
Ready to send: 0
In progress: 0
Send work: Enabled
****
@Eric
Прошу обеспечить участников заданиями для CPU.
( 100k for Win-CPU, + 100k Linux-cpu. )
****
Regards for all. :)
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Profile Eric Driver
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Message 4184 - Posted: 3 Feb 2026, 3:48:00 UTC - in response to Message 4183.  

Hi, Eric.
****
Tasks
Ready to send: 0
In progress: 0
Send work: Enabled
****
@Eric
Прошу обеспечить участников заданиями для CPU.
( 100k for Win-CPU, + 100k Linux-cpu. )
****
Regards for all. :)


Done.
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Message boards : Number crunching : Gerasim is not working


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