[mpich-discuss] mpich2 acts strange.

[Darius Buntinas]

Normally you shouldn't need to use buffered sends.  E.g., just using MPI_Send() and MPI_Recv() is enough to ensure that the server will receive a message from each client.

-d

On Jan 12, 2011, at 12:47 PM, Eugene N wrote:

> Hello, dear community neighbours
> 
> Can I ask you some questions that are bothering me?
> 
> if several nodes report in "safe" mode to server node, and data arrives simultaneously (competing messages), will only one message survive, and others will be lost?
> 
> Is this why a buffer is needed? Do we have to use buffer attach on the client or on the server (or both)??
> 
> Thanks
> 
> Eugene
> 
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