C int info = pvm_send( int tid, int msgtag )
Fortran call pvmfsend( tid, msgtag, info )
The pvm_send routine is asynchronous. Computation on the sending processor resumes as soon as the message is safely on its way to the receiving processor. This is in contrast to synchronous communication, during which computation on the sending processor halts until the matching receive is executed by the receiving processor.
The PVM model guarantees the following about message order. If task 1 sends message A to task 2, then task 1 sends message B to task 2, message A will arrive at task 2 before message B. Moreover, if both messages arrive before task 2 does a receive, then a wildcard receive will always return message A.
Terminating a PVM task immediately after sending a message or messages from it may result in those messages being lost. To be sure, always call pvm_exit() before stopping.
C: info = pvm_initsend( PvmDataDefault ); info = pvm_pkint( array, 10, 1 ); msgtag = 3 ; info = pvm_send( tid, msgtag ); Fortran: CALL PVMFINITSEND(PVMRAW, INFO) CALL PVMFPACK( REAL8, DATA, 100, 1, INFO ) CALL PVMFSEND( TID, 3, INFO )