Error:PGF90-S-0084-Illegal use of symbol mpi_sum

PGF90-S-0084-Illegal use of symbol mpi_sum - not public entity of module (denmatlomem.F: 99)
PGF90-S-0084-Illegal use of symbol mpi_comm_world - not public entity of module (denmatlomem.F: 99)
0 inform, 0 warnings, 2 severes, 0 fatal for denmatlomem
make: *** [denmatlomem.o] Error 2

How can I do?

Hi solomon_CN,

I think you forgot to add “use mpi” in your module.

  • Mat