The CMM environment has been updated to use openMPI 2.0.1 and PETSc 3.7.4. In order for DAMASK to properly work under those conditions, apply an intermediate patch as long as the official DAMASK release has not yet adopted PETSc 3.7.x as default.
patch -p1 < installation/patch/petsc3.7
Perform a clean compilation of the source code.
make clean spectral