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Disable or make automatic prefecthing of unified memory optional #2618

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maleadt opened this issue Jan 11, 2025 · 0 comments
Open

Disable or make automatic prefecthing of unified memory optional #2618

maleadt opened this issue Jan 11, 2025 · 0 comments
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cuda array Stuff about CuArray. good first issue Good for newcomers performance How fast can we go?

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@maleadt
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maleadt commented Jan 11, 2025

As diagnosed in #2615, automatically prefetching unified memory arrays is counterproductive when the array is used on multiple devices.

For the time being, we should probably disable this prefetching when multiple devices are available on the system.
@maleadt maleadt added cuda array Stuff about CuArray. good first issue Good for newcomers performance How fast can we go? labels Jan 11, 2025
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