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Re: Unsuccessful build of 3.1 on AIX 5.1
- From: David Edelsohn <dje at watson dot ibm dot com>
- To: Walter Landry <wlandry at ucsd dot edu>
- Cc: gcc-help at gcc dot gnu dot org
- Date: Sat, 18 May 2002 18:25:05 -0400
- Subject: Re: Unsuccessful build of 3.1 on AIX 5.1
- References: <20020518.105009.07647533.wlandry@ucsd.edu>
I am not sure why Fortran is not installing properly for you.
As far as using GCC with MPI on AIX, it worked the last time I
tried. You must use the GCC for AIX option "-mpe" to compile and link the
program because MPI requires additional header directories and library
directories located in /usr/lpp/ppe.poe . I have not tried using G++ with
MPI.
MPI programs are linked with both libmpi.a and libvtd.a, and with
the special MPI crt0.o. That is what the "-mpe" option does. If
/usr/lpp/ppe.poe/crt0.o is not installed on your system then either you
have something wrong with your installation or a different version of MPI
than GCC was designed to work with.
This is meant for AIX's MPI for SP2, not MPICH.
David