Use less thread blocks for find_uncached kernel#3101
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This pull request was exported from Phabricator. Differential Revision: D62401630 |
Summary: Pull Request resolved: pytorch#3101 X-link: facebookresearch/FBGEMM#190 Find uncached takes quite long time and this often overalap with the main stream in prefetch mode. We do want it to be overlapped with other kernels so it has minimal effect on the main stream. This will likely make cache prefetch taking slightly longer (not significantly as prefetch spent longest time in data transfer), but will make overlapping main stream kernels faster. Differential Revision: D62401630
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This pull request was exported from Phabricator. Differential Revision: D62401630 |
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This pull request has been merged in 20cb987. |
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Summary:
Find uncached takes quite long time and this often overalap with the main stream in prefetch mode. We do want it to be overlapped with other kernels so it has minimal effect on the main stream.
This will likely make cache prefetch taking slightly longer (not significantly as prefetch spent longest time in data transfer), but will make overlapping main stream kernels faster.
Differential Revision: D62401630