[petsc-users] MPICH C++ compilers when using PETSC --with-cxx=0

[Robert.Crockett at lamresearch.com]

Hello,
I built PETSc with -with-cxx=0 in order to get around a likely Intel C++ compiler bug.
However, the MPICH that also gets built by PETSc then picks up the wrong C++ compiler; mpicxx -show indicates that it is using G++, while mpicc is correctly using icc.

Is there a way to get PETSc to pass the correct C++ compiler for the MPICH build when using -with-cxx=0? I need to compile parts of my own program with mpicxx/icpc.
Robert Crockett
Plasma Simulation Engineer | OCTO - Computational Products
P: 617.648.8349  M: 415.205.4567

LAM RESEARCH
4650 Cushing Pkwy, Fremont CA 94538 USA
lamresearch.com<https://www.lamresearch.com/>
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