I am trying to pass a 1D array using MPI_Send / MPI_Recv. The array
gets passed properly, but then it appears as if I hang on the receive.
Here is a snippet of the code I am using:
float node0[400];
....
float data_buf[400];
if (node == 0) {
.....
.....
node1[0] = 0.1;
node1[1] = 0.4;
node1_cnt = 2;
MPI_Send( &node1 , node1_cnt, MPI_FLOAT, 1, 1, comm_2d);
}//while still master
MPI_Recv( data_buf , 2, MPI_FLOAT, 0, 1, comm_2d, NULL);
printf("BUFFER %f %f \n",data_buf[0],data_buf[1]);
MPI_Finalize();
}
I get the following output:
BUFFER 0.100000 0.400000
Which implies that the receive completed, but then it hangs.
Any feedback would be greatly appreciated.
Thanks in advance,
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