[mvapich-discuss] about MPI_ISend

[M A Walkley]

Hi,

I believe it is implemented differently in each MPI version.

Someone here can probably say how it is implemented in mvapich.

Regards,
Mark.


On Mon, 11 Apr 2011, Xin Sui wrote:

> Hi:
> 
> Could you conceptually explain how ISend works internally? for example,  If process i calls a set of MPI_Isend
> to another process j, but process j didn't call MPI_Recv or MPI_Irecv, will those message from process i to
> process j actually get sent or not? If they are get sent, where are they buffered in process j? Is this same
> across different implementation of MPI?
> 
> 
> Thanks
> Best Regards,
> Xin
> 
>