opencl with Arc B580 + iGPU?

Software darktable
1

MSI MAG X670E TOMAHAWK WIFI
AMD Ryzen 9 9900X
Intel Arc B580 Limited Edition

Can dedicated Arc B580 + iGPU of Ryzen 9 9900X be used at the same time for opencl?

2

https://docs.darktable.org/usermanual/4.8/en/special-topics/opencl/multiple-devices/

3

the iGPU will probably be a lot weaker than the b580. which then begs the question if the overhead of copying between the 2 is worth it.

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4

Not at the same time. Each pipe (preview or full) can each use each GPU. The iGPU is fairly limited and can be challenging to make it work in Linux due to drivers.

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