NVidia 436.xx and later drivers can cause very long compute times especially on Arecibo VHAR work units

Message boards : Number crunching : NVidia 436.xx and later drivers can cause very long compute times especially on Arecibo VHAR work units
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robertmiles
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Message 2041616 - Posted: 30 Mar 2020, 14:53:57 UTC

result.sah and state.sah were both present - no messages about them.

I got warnings about several of the MB_clFFTplan_GeForceGTX1080_* files not being found, though.

No error messages in the *-benchMB.txt file.

I'm about to download the 442.75 driver for another test run.
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Richard Haselgrove Project Donor
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Message 2041618 - Posted: 30 Mar 2020, 15:06:05 UTC - in response to Message 2041616.  

Ah, thanks - panic over. The MB_clFFTplan_GeForceGTX1080_* files are - intentionally - generated by the app on the first run on any given machine, and are disposable: if present, they will be used to optimise future runs; if absent, they'll be re-generated.
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robertmiles
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Message 2041880 - Posted: 31 Mar 2020, 4:17:52 UTC

The test for the 442.75 driver also hung for my GTX 1080, with no GPU use.

I wrote a rather long set of instructions for running the test and sent it to Nvidia, as an addon to to the problem report
I sent them about a week ago.
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Jacob Klein
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Message 2041882 - Posted: 31 Mar 2020, 5:11:05 UTC - in response to Message 2041880.  
Last modified: 31 Mar 2020, 5:13:38 UTC

You mean 445.75, right?? This is a Release 445 driver, a major release from the prior ones.
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robertmiles
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Message 2041957 - Posted: 31 Mar 2020, 12:36:45 UTC - in response to Message 2041882.  

You mean 445.75, right?? This is a Release 445 driver, a major release from the prior ones.

Yes. Sorry about the mistake.
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Jacob Klein
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Message 2041960 - Posted: 31 Mar 2020, 13:08:14 UTC - in response to Message 2041957.  

I'm glad you also have a repro of the issue, and I thank you for reporting it to NVIDIA via the Driver Feedback Form.
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Ian&Steve C.
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Message 2041994 - Posted: 31 Mar 2020, 15:02:49 UTC

<24hrs of project life remaining. it'll be over before it hits any desk at Nvidia.
Seti@Home classic workunits: 29,492 CPU time: 134,419 hours

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Jacob Klein
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Message 2042156 - Posted: 1 Apr 2020, 2:26:18 UTC

I have confirmation from NVIDIA, that the changes that fixed this issue in R440 driver 442.19, were accidentally removed from the R445 branch.
NVIDIA is looking into next steps.
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Jacob Klein
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Message 2045919 - Posted: 20 Apr 2020, 0:47:00 UTC
Last modified: 20 Apr 2020, 0:49:05 UTC

I have re-tested, using the 445.87 driver (from 4/15/2020), and they have again fixed the issue. So ..
445.87 has the fix, for Release 445 Drivers.

Thanks,
Jacob Klein
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Grant (SSSF)
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Message 2045921 - Posted: 20 Apr 2020, 0:50:47 UTC - in response to Message 2045919.  

I have re-tested, using the 445.87 driver (from 4/15/2020), and they have again fixed the issue. So ..
445.87 has the fix, for Release 445 Drivers.

Thanks,
Jacob Klein
Thanks again for your efforts.
Grant
Darwin NT
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Jacob Klein
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Message 2045922 - Posted: 20 Apr 2020, 0:51:21 UTC - in response to Message 2045921.  

You're welcome :)
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Message boards : Number crunching : NVidia 436.xx and later drivers can cause very long compute times especially on Arecibo VHAR work units


 
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