[mpich-discuss] mpich run error

نازنین nazanin.mirshokraei at gmail.com
Sat Nov 29 08:15:10 CST 2014


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 <jczhang at mcs.anl.gov> 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 <nazanin.mirshokraei at gmail.com>
> 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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