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Send/Recv to same rank #97

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Mellich opened this issue Oct 6, 2022 · 1 comment
Open

Send/Recv to same rank #97

Mellich opened this issue Oct 6, 2022 · 1 comment
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enhancement New feature or request

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@Mellich
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Mellich commented Oct 6, 2022

Currently it is not possible to have the same source and destination rank for send/recv.
A possible replacement for this call may be a copy from or to stream to buffer the data manually.
@Mellich Mellich added the enhancement New feature or request label Oct 6, 2022
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Mellich commented Oct 26, 2022

Copy from and to streams introduced in #100. So copy operations can be used as a replacement for send/recv now by copying data into a temporary buffer instead of sending it. For now this special case needs to be handled by the user code.

C++ API send and receive could be extended to do this automatically to clean up the user code.

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