[mpich-discuss] A problem with MPI_Send and MPI_Recv

Rajeev Thakur thakur at mcs.anl.gov
Fri May 11 12:39:41 CDT 2012


First try it in a simple program with 2 processes, not a client-server application. That can help you debug the code.

Rajeev

On May 11, 2012, at 12:35 PM, toufik hadjazi wrote:

> Hi,
> 
> i'm using mpich2 on windows 7 and i'm working on a client server application, in which the client and the server exchange messages, and there where i've encountred a weird problem; the client sends an empty message to the server but the message doesn't reach the serverso it stills bocking on the MPI_Recv call (when i trined to figure out what happens i've noticed that MPI_Send completes successfully!); knowing that this doesn't happen only after the fifth or the sixth iteration; could this problem be the result a limited buffer capacity or something like that, if so, is it possible to resolve it?
> 
> best regards,
> Toufik.
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