As indicated by the message, you passed an invalid communicator to MPI_Comm_rank() in your program. --Junchao Zhang On Sat, Nov 29, 2014 at 4:32 AM, نازنین <[email protected]> wrote:
hi does any one know about this error : Fatal error in PMPI_Comm_rank: Invalid communicator, error stack: PMPI_Comm_rank(108): MPI_Comm_rank(comm=0x0, rank=0x7fff24a405bc) failed PMPI_Comm_rank(66).: Invalid communicator Fatal error in PMPI_Comm_rank: Invalid communicator, error stack: PMPI_Comm_rank(108): MPI_Comm_rank(comm=0x0, rank=0x7fff63e1598c) failed PMPI_Comm_rank(66).: Invalid communicator
it is when i run mpich like : mpirun -np 2 ./coawstM swan_only.in
i don't know if this is a problem in my executable file (coawstM) or this is from mpich or any other hardware issues or anything else thank you for your help nazi
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