NVIDIA GeForce GTX TITAN Black not receiving work


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zepingouin
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Message 7857 - Posted: 12 Aug 2023, 10:45:30 UTC
Hi,
Here are the computational characteristics:
CUDA: NVIDIA GPU 0: NVIDIA GeForce GTX TITAN Black (driver version 470.99, CUDA version 11.4, compute capability 3.5, 4096MB, 4007MB available, 5645 GFLOPS peak)

Running Linux/Debian Bullseye (11), is this configuration compatible?
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Profile Keith Myers
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Message 7858 - Posted: 16 Aug 2023, 7:46:33 UTC - in response to Message 7857.  

Last modified: 16 Aug 2023, 7:50:03 UTC
Hi,
Here are the computational characteristics:
CUDA: NVIDIA GPU 0: NVIDIA GeForce GTX TITAN Black (driver version 470.99, CUDA version 11.4, compute capability 3.5, 4096MB, 4007MB available, 5645 GFLOPS peak)

Running Linux/Debian Bullseye (11), is this configuration compatible?


You should get the 102 version app which handles CC between 3.0 and 8.0

Even though the CUDA55 app is still in the applications page it has been deprecated.

Some tasks need more than 4GB but I have most tasks using around 2900 to 3800MB per task.
The scheduler might look at your 4GB and just decide to not send you any on the chance it might send you one of the larger tasks needing more than 4GB. Just guessing here.

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zepingouin
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Message 7866 - Posted: 19 Aug 2023, 21:00:34 UTC - in response to Message 7858.  
I guess this is lack of 102 version since this card as more than 4GB of memory.

$ nvidia-smi -q -d MEMORY

==============NVSMI LOG==============

Timestamp                                 : Sat Aug 19 22:54:52 2023
Driver Version                            : 470.182.03
CUDA Version                              : 11.4

Attached GPUs                             : 1
GPU 00000000:03:00.0
    FB Memory Usage
        Total                             : 6078 MiB
        Used                              : 4 MiB
        Free                              : 6074 MiB
    BAR1 Memory Usage
        Total                             : 128 MiB
        Used                              : 4 MiB
        Free                              : 124 MiB
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Profile Keith Myers
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Message 7867 - Posted: 20 Aug 2023, 7:35:18 UTC
Ah, my mistake. I should have recognized you posted the card detection output of an older Boinc client which has the inability to report no more than 4GB of memory for Nvidia cards because it uses older 32bit only detection.

That flaw was remedied in the latest client versions.

The 1.02 app is not at fault here. It is Boinc itself. And the flaw is only in reporting. Any app will use all of the actual card memory.

I didn't independently verify your card VRAM capacity.

Your 6GB of VRAM is more than enough to run 1X tasks with no issues.

So the problem lies elsewhere.

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Message boards : Number crunching : NVIDIA GeForce GTX TITAN Black not receiving work