Fails to build scotch with Intel MPI and Intel Compiler

The Makefile in ThirdParty sets CC to "icc" for scotch but "mpicc" is still called for MPI builds. Intel MPI can use either compiler and has wrappers specifically for Intel Compiler, e.g. mpiicc. The current build script fails on "CentOS Linux release 7.3.1611 (Core)" with the following link errors:

...
mpicc -m64 -fPIC -O3 -DCOMMON_FILE_COMPRESS_GZ -DCOMMON_RANDOM_FIXED_SEED -DSCOTCH_RENAME -Drestrict=__restrict -DINTSIZE64 -I../../include -I../libscotch dgtst.c -o dgtst -L../../lib -lptscotch -lscotch -lptscotcherrexit -Xlinker --no-as-needed -m64 -lz -lm -lrt../../lib/libscotch.so: undefined reference to `__intel_sse2_strcpy'
../../lib/libscotch.so: undefined reference to `_intel_fast_memset'
../../lib/libscotch.so: undefined reference to `_intel_fast_memcpy'
../../lib/libscotch.so: undefined reference to `__intel_sse2_strlen'
../../lib/libscotch.so: undefined reference to `_intel_fast_memmove'
../../lib/libscotch.so: undefined reference to `__intel_sse2_strchr'
../../lib/libscotch.so: undefined reference to `__intel_sse2_strncmp'

assigned to @mark

Is this just scotch that is causing the issues? They have their own 'CCS' and 'CCP' (serial and parallel) that we could attempt to use. I'm a bit hesitant overriding mpicc everywhere. I don't know what else might be affected, or how to intelligently unset it when clearing the OpenFOAM environment.

Yes - it's just scotch that needs to be updated. It is set up correctly for the rest of OpenFOAM.

By paul on 2017-03-28T15:38:09 (imported from GitLab project)

Hi @paul

Could you see if these preliminary changes work for you? https://develop.openfoam.com/Development/ThirdParty-plus/commit/e5afc7ea3fe2766acb40e80274cf311b5d1ac0e7

Merged in the changes to ThirdParty. Assume that this solves the problem, even without further feedback from @paul . Can re-open if the issue still persists.

closed

mentioned in commit 47d212f1c87fa314ecfc8bdc6f38b03d25a4f282