ch4/ofi: fix MPIDI_OFI_rndv_need_pack for reg_host #7542
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ch4/ofi: fix MPIDI_OFI_rndv_need_pack for reg_host #7542hzhou wants to merge 1 commit intopmodels:mainfrom
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This patch has issues: https://jenkins-pmrs.cels.anl.gov/job/mpich-review-ch4-gpu-ofi/411/ |
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When we use malloc for pack buffer and when it is used for copying from and to GPU, we potentially can incur expensive registration cost every time. This is the case with ZE. Use pipeline_pool allows reusage of pack buffers.
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Pull Request Description
When we use malloc for pack buffer and when it is used for copying from
and to GPU, we potentially can incur expensive registration cost every
time. This is the case with ZE. Use pipeline_pool allows re-usage of pack
buffers.
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