Why no Workunits for NVidia Tesla K80 and GeForce GTX 770?
30 Dec 2021 23:45:07 UTC
Topic 226677
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I have an AMD/ATI RX 580, an NVidia Tesla K80, and an EVGA GeForce GTX 770 in one computer. I used it for the last part of winter last year when the K80s became available for sale and processed many workunits.
I have been processing workunits with the K80 since early December this year and with the GTX 770 shortly thereafter. Virtually all of the workunits verified OK. The processing times were about 26 minutes apiece. I am using the latest driver for the GTX 770, and that driver also enables OpenCL 3.0 for the K80. Here are the specs from the BOINC log:
OpenCL: NVIDIA GPU 0: Tesla K80 (driver version 472.12, device version OpenCL 3.0 CUDA, 11448MB, 4007MB available, 2806 GFLOPS peak)
OpenCL: NVIDIA GPU 1: Tesla K80 (driver version 472.12, device version OpenCL 3.0 CUDA, 11448MB, 4007MB available, 2806 GFLOPS peak)
OpenCL: NVIDIA GPU 2: NVIDIA GeForce GTX 770 (driver version 472.12, device version OpenCL 3.0 CUDA, 2048MB, 1672MB available, 3493 GFLOPS peak)
Suddenly at the end of last week I am not receiving any workunits for the NVidia devices. Does anyone truly know why?
I'm going to guess it might
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I'm going to guess it might have something to do with that you have over a 1100 AMD/ATI tasks on your host already. it might think you have too much work already.
what does the event log say when you initiate a schedule request? that will probably tell you why you got no more nvidia work, if it's properly asking for it.
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Thanks for your reply. The
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Thanks for your reply.
The event log says nothing about the NVidia devices. It is true that when there are a lot of ATI tasks, it refuses to download anything because "too many runnable tasks," but I set "no new work" in BOINC until there were many fewer ati tasks, and when I enabled new work again, all it did was download ati tasks, even though many thousands of seconds of work were requested for the NVidia devices. Something is preventing it from downloading work for the K80s and the GTX 770.