[mpich-discuss] MPI_Send() may or may not wait for an MPI_Recv()

michael bane michael.bane at manchester.ac.uk
Tue Aug 24 10:49:25 CDT 2010


Sounds like it does what the standard does! If you want buffered then  
use buffered send, don't presume!

Michael
http://www.twitter.com/mkbane_mcr


On 24 Aug 2010, at 16:45, Alexandru Blidaru wrote:

> Hi guys,
>
> I discovered that MPI_Send sometimes waits for the MPI_Recv, while  
> at other times it doesn't. Does anyone know the reason why this is  
> happening or any way I can make sure it either always doesn't or  
> does wait?
>
> Cheers,
>
> -- 
> Alexandru Blidaru
>
> University of Waterloo - Electrical Engineering '15
> University email:              asblidar at uwaterloo.ca
> LinkedIn:                         http://ca.linkedin.com/in/alexandrublidaru
> Blog:                              http://alexblidaru.wordpress.com/
> Twitter handle:                @G_raph
>
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