[mpich-discuss] Newbie getting started question?

[Anthony Chan]

If the mpich2 installation you are using has Fortran 90 binding
correctly, you don't need -L<MPICH2_LIBDIR> when using mpif90.
The compiler wrapper should have taken care of setting all -L
flags to mpich2 libraries, try

mpif90 -o ex1 ex1.f95

A.Chan
----- Original Message -----
> I have a small example program I've built and tested before using
> MPICH2
> that come with the PETSc installation.
> 
> I just installed MPICH2 on a new machine (without PETSc) using: yum
> install
> mpich2.
> 
> I added /usr/lib/mpich2/bin/ to my PATH env. variable and tried:
> mpif90
> ex1.f95 -L/usr/lib/mpich2/lib/. This resulted in:
> 
> /usr/bin/ld: cannot find -lmpichf90
> /usr/bin/ld: cannot find -lmpichf90
> /usr/bin/ld: cannot find -lmpich
> 
> I checked and the PETSc installation has *.a files in the lib
> directory,
> whereas my new installation of MPICH2 has *.so files. What do I need
> to do
> to get this to compile?
> 
> ---John
> 
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