Dr. Simon,
My gfortran version was more recent than the official one at the GNU website. I tried it with 4.3, and that gave me that error. However, I just tried it with the stable version 4.2, which is the latest at the GNU website, and it worked! I think what happened is that it compiled with CC pointing to Apple's installed cc version 4.0.1, but with F90 pointing gfortran 4.3 that I installed. This time I forced it to use GCC 4.2 the whole way through and it worked. Thank you for pointing me in the right direction.

So for anyone else who may come across this, if you get an error like
Fatal Error: Reading module mpi at line 3562 column 2: Expected integer
it may mean that you've used a different version of cc than gfortran when configuring OpenMPI.

The configure script ought to warn about this!

Aaron Thompson
Vanderbilt University
aaron.p.thomp...@vanderbilt.edu



On Jun 3, 2007, at 5:39 PM, Christian Simon wrote:

Dear Aaron,

Here's what I did in detail.
I downloaded gfortran 4.3 from http://hpc.sourceforge.net/ and that
installed fine.  Simple programs compile.

Is your gfortran older or more recent than the official
one on http://gcc.gnu.org/fortran/ ?

--
Dr. Christian SIMON, Maitre de Conferences
Laboratoire LI2C-UMR7612                Bat. F74, piece 757
Universite Pierre et Marie Curie        Tel:+33.1.44.27.32.65
Case 51                                 Fax:+33.1.44.27.32.28
4 Place Jussieu
75252 Paris Cedex 05
France/Europe


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