[mpich-discuss] Installing mpich

[rigved sharma]

when i try to execute helloworld.f90 code, i get following error.

../bin/mpif90 helloworld.f90
/par1/mpich/install/lib/libmpich.a(farg.o): In function `mpir_iargc__':
farg.f:(.text+0x6): undefined reference to `f__xargc'
/par1/mpich/install/lib/libmpich.a(farg.o): In function `mpir_getarg__':
farg.f:(.text+0x38): undefined reference to `getarg_'
collect2: ld returned 1 exit status
--------------------------------
01.program helloWorld
02. implicit none
03. include "mpif.h"
04. integer :: myPE, numProcs, ierr
05. call MPI_INIT(ierr)
06. call MPI_COMM_RANK(MPI_COMM_WORLD, myPE, ierr)
07. call MPI_COMM_SIZE(MPI_COMM_WORLD, numProcs, ierr)
08. print *, "Hello World from ", myPE
09. call MPI_FINALIZE(ierr)
10.end program helloWorld
----------------------------------
I have some other programs to run . Can you suggest a way out ?

RIGVED

On Wed, Sep 21, 2011 at 9:53 PM, Anthony Chan <chan at mcs.anl.gov> wrote:

>
>
> ----- Original Message -----
>
> > when i execute the command mpif90 -v, i get following error. Any solution
> > for this linking issue sir
> >
> >
> > /usr/lib/gcc/x86_64-redhat-linux/4.1.2/libgfortranbegin.a(fmain.o): In
> > function `main':
> > (.text+0xa): undefined reference to `MAIN__'
> > collect2: ld returned 1 exit status
>
> Don't worry about that. MPICH-1's fortran compiler wrapper isn't careful
> about
> this case.  Try using mpif90 to compile a fortran MPI program and see if it
> runs.
> Again, we don't support it so you are on your own.
>
> A.Chan
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