Executing commands in parallel
The main purpose of pexec is to execute the given command in parallel on
the local host or on remote hosts, while some of the execution
parameters, namely the redirected standard input, output or error and
environmental variables can be varied. The capabilities of the program
are extended with additional features, such as allowing to define mutual
exclusions, do atomic command executions and implement higher level
resource and job control. The maximum number of simultaneous tasks can
be controlled by a hypervisor daemon: with such a daemon, concurrent
pexec instances can be launched without an unexpectedly high load.
