pvm_reg_tasker - Register task as PVM task starter.
C #include <pvmsdpro.h>
int cc = pvm_reg_tasker()
Fortran Not Available
Registers the calling task as a PVM task starter. When a tasker is registered with a pvmd, and the pvmd receives a DM_EXEC message, instead of fork()ing and exec()ing the task itself, it passes a message to the tasker, which does the dirty work and sends a message back to the pvmd.
Note: If this doesn't make sense, don't worry about it. This function is for folks who are writing stuff like debugger servers and so on. For a more complete explanation of what's going on here, you should refer to the PVM source code and/or user guide section on implementation; this is only a man page. That said...
When the pvmd receives a DM_EXEC message (request to exec new tasks), it searches epath (the PVM executable search path) for the file name. If it finds the file, it then either attempts to start the processes (using fork() and exec()) or, if a tasker has registered, sends it a SM_STTASK message.
The format of the SM_STTASK message is:
The tasker must send a SM_TASKX message to the pvmd when any task that it owns (has started) exits, or if it can't start a particular task. The format of the SM_TASKX message is:
pvm_reg_tasker() returns PvmOk when successful.