Function utils::mpiSize

• Defined in File MPIUtils.hpp

Function Documentation

inline auto utils::mpiSize() -> int

Return the total number of MPI ranks in this run.

Reads a value cached by initMPI() – see mpiRank().

Returns:

The size of MPI_COMM_WORLD, or 1 if this build was not compiled with SLUG_MPI, or initMPI() has not run