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Subject: Re: [OMPI users] Missing F90 modules
From: Joe Griffin (joe.griffin_at_[hidden])
Date: 2008-07-30 16:22:39


Scott,

include brings in a file

use brings in a module .. kind of like an object file.

Joe

> -----Original Message-----
> From: users-bounces_at_[hidden] [mailto:users-bounces_at_[hidden]]
On
> Behalf Of Scott Beardsley
> Sent: Wednesday, July 30, 2008 1:16 PM
> To: Open MPI Users
> Subject: Re: [OMPI users] Missing F90 modules
>
> Brock Palen wrote:
> > On all MPI's I have always used there was only MPI
> >
> > use mpi;
>
> Please excuse my admittedly gross ignorance of all things Fortran but
> why does "include 'mpif.h'" work but "use mpi" does not? When I try
the
> "use mpi" method I get errors like:
>
> $ mpif90 -c cart.f
>
> call mpi_cart_get( igcomm,2,ivdimx,lvperx, mygrid,
ierr)
> ^
> pathf95-389 pathf90: ERROR CART, File = cart.f, Line = 34, Column = 12
> No specific match can be found for the generic subprogram call
> "MPI_CART_GET"
>
> $ mpif90 -c cartfoo.f
> $ diff cart.f cartfoo.f
> 3,4c3,4
> < C include 'mpif.h'
> < use mpi;
> ---
> > include 'mpif.h'
> > C use mpi;
> $
>
> From the googling I've done it seems like "use mpi" is preferred[1].
> I've made sure that my $LD_LIBRARY_PATH has the directory that MPI.mod
> is in.
>
> Scott
> --------
> [1] http://www.mpi-forum.org/docs/mpi-20-html/node243.htm
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