message: Add MPI num ranks to Kernel Info file
diff: @@ -605,6 +605,15 @@ void Executor::reportRunSummary(ostream& str) const
  void Executor::writeKernelInfoSummary(ostream& str, bool to_file) const
  {
  + if ( to_file ) {
  +#ifdef RAJA_PERFSUITE_ENABLE_MPI
  + int num_ranks;
  + MPI_Comm_size(MPI_COMM_WORLD, &num_ranks);
  + str << "Kernels run on " << num_ranks << " MPI ranks" << endl;
  +#else
  + str << "Kernels run without MPI" << endl;
  +#endif
  + }
  //
  // Set up column headers and column widths for kernel summary output.
  