PMC does not currently export any useful environment variables when launching a task. It should tell the task about the MPI rank of the worker, the hostrank of the worker, the name of the task, the resource requirements of the task (memory, num cpus, etc), and the resource allocation of the task (cpus0-3 for example). These, and any other things we can think of, should be exported as environment variables with a "PMC_" prefix.