Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Development mailing list

Subject: [OMPI devel] RFC: Add some basic CUDA-aware support to reductions
From: Rolf vandeVaart (rvandevaart_at_[hidden])
Date: 2014-05-14 09:55:11

WHAT: Add some basic support so that reduction functions can support GPU buffers.
All this patch does is move the GPU data into a host buffer before the reduction call and move it back to GPU after the reduction call.
Changes have no effect if CUDA-aware support is not compiled in.

WHY: Users of CUDA-aware support expect reductions to work.

WHEN: After next con call, May 20, 2014

See attached patch.

This email message is for the sole use of the intended recipient(s) and may contain
confidential information. Any unauthorized review, use, disclosure or distribution
is prohibited. If you are not the intended recipient, please contact the sender by
reply email and destroy all copies of the original message.