Welcome to MilkyWay@home

Posts by Gibbzy1991

1) Message boards : Number crunching : Run Multiple WU's on Your GPU (Message 70425)
Posted 22 Jan 2021 by Gibbzy1991
Post:
SRBase seems to be SP
2) Questions and Answers : Windows : Nvidia driver 461.09 causes wu's to stall/run indefinitely, 460.79 works fine (Message 70408)
Posted 20 Jan 2021 by Gibbzy1991
Post:
Yeah I had a look into the F@H thing, apparently there was a bug that went unfixed by nvidia for 2+ years and while the project had a workaround it affected performance quite a bit.

I'm probably going to move on to SRBase, after reading a bit more it seems a little silly to be using this gpu for milkyway when old amd cards are just as fast or faster. And while this pc spends more time crunching than gaming, but it is primarily a gaming pc so I'd prefer to keep the drivers up to date.

Still happy to do some profiling or extra troubleshooting if it would be helpful. But I guess if most people are running older hardware, or only crunching, then the driver issues aren't really a problem for the project in general.
3) Questions and Answers : Windows : Nvidia driver 461.09 causes wu's to stall/run indefinitely, 460.79 works fine (Message 70388)
Posted 18 Jan 2021 by Gibbzy1991
Post:
As the title says, nvidias new gpu driver is breaking milkyway opencl workunits. Reinstalling the previous driver, version 460.79, fixes the issue. Another users 1080ti and my 2070 super both had the same problem and the same fix, so there are likely other nvidia gpus affected by the bug too.

While testing/confirming it was the driver, I noticed that cpu usage was identical between the two driver versions, but with the newer driver gpu load never went above idle. They don't error out, at least not overnight, so it just shows an ever increasing remaining time estimate in boinc.

I suppose it would be possible to see what is going on by using the nvidia visual profiler tool? I'm on mobile data at the moment, so I just want to check that the tool would work to profile opencl before downloading it and trying to figure out how it all works. Happy to do it if the logs could be helpful to the devs here.
4) Message boards : Number crunching : Work units not completing or are stalled (Message 70381)
Posted 17 Jan 2021 by Gibbzy1991
Post:
Installing nvidia driver 460.79 has fixed the problem for me, tried 461.09 again to double check and there is definitely something with the new driver that is breaking milkyway, or at least the current work units.

To find older nvidia drivers, just fill in your gpu details here and grab 460.79 to install. Shouldn't need to do a clean install either, express worked fine for me.

(edit) I know system restore should have reverted your driver to the previous version, but I still think it is worth trying to install the older driver from nvidia. I'm 100% sure it was the new driver that caused wu's to hang/crunch forever without completing.
5) Message boards : Number crunching : Work units not completing or are stalled (Message 70371)
Posted 15 Jan 2021 by Gibbzy1991
Post:
I'm having exactly the same problem, and it isn't from lack of cpu grunt to back up the gpu.

Went from finishing 3 tasks at once in 5 to 6 minutes, with 9 threads of rosetta running also, to tasks not completing after 4+ hours with the whole cpu free for milkyway. 30% cpu usage now, only running 3 milkyway tasks on gpu, no rosetta. Gpu isn't even boosting, it's stuck at idle clocks.

Kinda suspect it is the new nvidia drivers as I did update the other day, will roll back tomorrow and test but there is definitely something wrong.
I crunch through grcpool so it might be hard to find my workunits




©2024 Astroinformatics Group