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From: ÕÔÓ¡ (yin_zhao_at_[hidden])
Date: 2012-11-13 04:56:38

I have a problem here.

My program runs perfectly in MPI version 1.6 series, but it would run into some problem in MPI version 1.4x series. Does MPI 1.4x version have a bug related in MPI_Recv.

The log in Node[1] says that "MPI_Recv in node[1] can not probe tag [11] from source[0]". But in node [0], the log says it Isend message with Tag [11] to dest [1].

int provided;

MPI_Init_thread(&argc,&argv, MPI_THREAD_MULTIPLE,&provided);if(provided != MPI_THREAD_MULTIPLE){
   printf("Sorry, your MPI library does not provide MPI_THREAD_MULTIPLE\n");

Both of my 1.6x and 1.4x library do not support MPI_THREAD_MULTIPLE. Is this the reason? But why it runs perfect with 1.6x version.

Thanks very much for your help.