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Vega Navi Radeon VII owners - please try ULPS disabling
Posted: Wed Feb 26, 2020 10:46 am
by Frontiers
Suspecting that GCN/Navi cards auto underclocked by drivers when fold low atom-count projects.
Please try to disable ULPS as written here
https://community.amd.com/thread/176003 and compare PPD with ULPS enabled vs disabled for that small projects with lowest PPD.
Re: Vega Navi Radeon VII owners - please try ULPS disabling
Posted: Thu Feb 27, 2020 11:43 am
by foldy
A workaround for AMD GPUs with too many cores for small FAH work units is to run 2 work units on the same GPU concurrently. Each work unit will run slower but together they give more PPD.
Re: Vega Navi Radeon VII owners - please try ULPS disabling
Posted: Thu Feb 27, 2020 5:13 pm
by bruce
The other work-around is to train the assignment servers to restrict small WUs to smaller GPUs. Any Navi will be happy to get only large WUs.
Re: Vega Navi Radeon VII owners - please try ULPS disabling
Posted: Fri Feb 28, 2020 9:12 am
by MeeLee
For Nvidia there is a workaround for that, don't know if AMD has the same, however doing so might optimize the GPU for smaller projects, but could break compatibility with larger WUs (make them fail), or , is compatible, but uses more power on the smaller WUs.
Best to research these cons while you're at it.