Hello,
Could anyone explain why I am getting errors like:
MPI_Recv: process in local group is dead (rank 1, MPI_COMM_WORLD)
Rank (1, MPI_COMM_WORLD): Call stack within LAM:
Rank (1, MPI_COMM_WORLD): - MPI_Recv()
Rank (1, MPI_COMM_WORLD): - main()
-----------------------------------------------------------------------------
One of the processes started by mpirun has exited with a nonzero exit
code. This typically indicates that the process finished in error.
If your process did not finish in error, be sure to include a "return
0" or "exit(0)" in your C code before exiting the application.
PID 22326 failed on node n0 with exit status 1.
-----------------------------------------------------------------------------
I am attaching part of my subroutine which calls MPI_Send/MPI_Recv.
here is the part of my code:
void exchange_interface_data(int rank, int local_Nz, int comm_tag)
{
MPI_Status status;
if(rank==0)
MPI_Send(&T[local_Nz-1][0]
[0],Nx*Ny,MPI_DOUBLE,rank+1,comm_tag,MPI_COMM_WORLD);
if(rank==1)
MPI_Recv(&T[rows_per_process*rank-1][0][0],Nx*Ny,MPI_DOUBLE,rank-
1,comm_tag,MPI_COMM_WORLD,&status);
}
Pls help me out.
Thanks!
Ravi
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