[mpich-discuss] MPI_Send over ibverbs

[Niyaz Murshed]

Hi,
Is there a way to check the implementation of MPI_Send?
As I understand there is an implicit barrier which allows MPI_Send to return only after the buffer is received by the destination.
How is this communication done? How does the destination notify the sender that buffer is received?
How is this implemented when using rocev2 ?

Regards,
Niyaz
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