11-14-2019
Please show your own work and any scripts / programs you have written so far to accomplish your task; and any error messages you got.
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LEARN ABOUT REDHAT
pvm_send
SEND(3PVM) PVM Version 3.4 SEND(3PVM)
NAME
pvm_send - Immediately sends the data in the active message buffer.
SYNOPSIS
C int info = pvm_send( int tid, int msgtag )
Fortran call pvmfsend( tid, msgtag, info )
PARAMETERS
tid Integer task identifier of destination process.
msgtag Integer message tag supplied by the user. msgtag should be >= 0.
info Integer status code returned by the routine.
DESCRIPTION
The routine pvm_send sends a message stored in the active send buffer to the PVM process identified by tid. msgtag is used to label the
content of the message. If pvm_send is successful, info will be 0. If some error occurs then info will be < 0.
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.
EXAMPLES
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 )
ERRORS
These error conditions can be returned by pvm_send
PvmBadParam
giving an invalid tid or a msgtag.
PvmSysErr
pvmd not responding.
PvmNoBuf
no active send buffer. Try pvm_initsend() before send.
SEE ALSO
pvm_initsend(3PVM), pvm_mcast(3PVM), pvm_pack(3PVM), pvm_psend(3PVM), pvm_recv(3PVM)
30 August, 1993 SEND(3PVM)