message: fix: run with single MPI task when MPI enabled
diff: @@ -41,9 +41,15 @@ endforeach()
  if(AXOM_ENABLE_TESTS)
  if(SCR_FOUND)
  + if(ENABLE_MPI)
  + axom_add_test(
  + NAME spio_IO_SCR_Checkpoint
  + COMMAND spio_IO_SCR_Checkpoint_ex
  + NUM_MPI_TASKS 1 )
  + else()
  axom_add_test(
  NAME spio_IO_SCR_Checkpoint
  COMMAND spio_IO_SCR_Checkpoint_ex )
  endif()
  endif()
  -
  + endif()
  