---

integer ( 4 ) error, id, p

!  Initialize MPI.
!
  call MPI_Init ( error )

!  Get the number of processes.
 call MPI_Comm_size ( MPI_COMM_WORLD, p, error )

!  Get the rank of this processor.
 call MPI_Comm_rank ( MPI_COMM_WORLD, id, error )

!  Print a message.
print *, 'Process ', id, ' of ',  p, ' is alive' 

if ( id == 0 ) then
!код для первого ядра
else if (id == 1) then
!код для второго ядра
 end if

!Terminate MPI.
call MPI_Finalize ( error )