[Ipopt] IPOPT, MUMPS and MPI

[Karla Telidetzki]

Hello all,

I have an aerodynamic shape optimization code, written in Fortran, which is
currently using SNOPT. I am trying to implement IPOPT as well to see if we
can get improved performance for some of our more difficult problems. The
code uses MPI and runs in parallel, however the optimization algorithm only
runs in a single processor. I have gone through the mailing list archives
and have seen a variety of suggestions on how to implement IPOPT with MPI,
such as using a different linear solver, installing the parallel version of
MUMPS and even suggesting changing the MUMPS source code (
http://list.coin-or.org/pipermail/ipopt/2012-February/002784.html). I was
wondering if anybody on this list has any suggestions as to the best plan
of action for my problem (i.e. Running the main code in parallel, but
running the optimization algorithm in serial in a single processor either
using MUMPS or a different linear solver).

Thanks for your help.

Karla Telidetzki
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