Try to compile your program with mpicc or mpicxx On Nov 29, 2014 8:15 AM, "نازنین" <[email protected]> wrote:
thank u for your reply .... can you please tell me what is the reason? it is my first time running a mpi .... i compiled a program with cpp which tells to use : export USE_MPI=on # distributed-memory parallelism export USE_MPIF90=on # compile with mpif90 script export which_MPI=mpich # compile with MPICH library #export which_MPI=mpich2 # compile with MPICH2 library # export which_MPI=openmpi # compile with OpenMPI library
#export USE_OpenMP=on # shared-memory parallelism
# export FORT=ifort export FORT=gfortran #export FORT=pgi
#export USE_DEBUG= # use Fortran debugging flags export USE_LARGE=on # activate 64-bit compilation #export USE_NETCDF4=on # compile with NetCDF-4 library #export USE_PARALLEL_IO=on # Parallel I/O with Netcdf-4/HDF5
#export USE_MY_LIBS=on # use my library paths below
and then it gives me a file(coawstM) and the manual tells me to run that file in this way : mpirun -np 2 ./coawstM swan_only.in
what will be the reason? is it because mpich was not compiled truely or the coawstM is not working for a reason? thank you
On Sat, Nov 29, 2014 at 6:07 AM, Junchao Zhang <[email protected]> wrote:
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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