If you enable MPI (using -DDEAL_II_WITH_MPI) then the cmake output will specify which version of the MPI library you are using. If you wish to specify in particular a version, you can pass it using additional argument. For example -DMPI_CXX_COMPILER=...
If you wish to see all possible variables you can specify, an easy way is to use ccmake to see all configuration options. You can toggle advanced configuration options to see all variables available to you. Hope that helps BB On Tuesday, August 5, 2025 at 8:29:35 a.m. UTC-4 [email protected] wrote: > Dear all > > The documentation says we set compilers like > > cmake -DCMAKE_C_COMPILER=my_c_compiler > -DCMAKE_CXX_COMPILER=my_cxx_compiler > -DCMAKE_Fortran_COMPILER=my_fortran_compiler <…> > > Where do I specify which MPI to use ? > > Should I specify mpicc, mpic++, mpif90 as compilers ? > > I do not see how deal.II cmake picks the location of MPI ? > > Thanks > praveen -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/dealii/27c1c4eb-797b-4d43-a298-a837e1840dd4n%40googlegroups.com.
