[mpich-discuss] mpich run error

Junchao Zhang jczhang at mcs.anl.gov
Sat Nov 29 10:53:58 CST 2014


Try to compile your program with mpicc or mpicxx
On Nov 29, 2014 8:15 AM, "نازنین" <nazanin.mirshokraei at gmail.com> 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 <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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