pvm_exit - tells the local pvmd that this process is leaving PVM.
pvm_exit tells the local pvmd that this process is leaving PVM. This routine does not kill the process, which can continue to perform tasks just like any other serial process.
pvm_exit should be called by all PVM processes before they stop or exit for good. It must be called by processes that were not started with pvm_spawn.
pvm_exit()