Running multiple work units on a single GPU


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adict2jane

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Message 9390 - Posted: 24 Jan 2026, 21:04:53 UTC
Is anyone running multiple work units on a single GPU?
I know that this is a viable option on the einstein@home project.
I tried using an app_config.xml file to instruct BOINC to run 2 GPU work units at once. It did work but unfortunately reduced the overall performance on both cards I tried it on.
I tried it on a gtx 4070 and a gtx 1070. Both computers running Windows 11. Crunching 2 WUs at once works but it takes more than twice as long to complete them. In other words, crunching 1 work unit at a time is faster.
Just curious if anyone is running multiple gpu work units at once and if they are seeing any efficiency gains.
Thank you
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ahorek's team
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Message 9393 - Posted: 26 Jan 2026, 9:12:14 UTC
possible? yes.
faster? no.

There may be some improvement when using Petri’s app in combination with MPS.
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Message boards : Number crunching : Running multiple work units on a single GPU