openib: Disable CUDA async by default #5740
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Disable async receive for CUDA under OpenIB. While a performance optimization, it also causes incorrect results for transfers larger than the GPUDirect RDMA limit. This change has been validated and approved by Akshay. References open-mpi#3972 Signed-off-by: Brian Barrett <[email protected]>
jsquyres
approved these changes
Sep 20, 2018
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@Akshay-Venkatesh Can you please put the nvidia seal of approval on this PR, too? (i.e., please use the github review mechanism -- thanks)
Akshay-Venkatesh
approved these changes
Sep 20, 2018
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Disable async receive for CUDA under OpenIB. While a performance
optimization, it also causes incorrect results for transfers
larger than the GPUDirect RDMA limit. This change has been validated
and approved by Akshay.
References #3972
Signed-off-by: Brian Barrett [email protected]