"PContext" holding worker processes invoked as a binary.
class torch.distributed.elastic.multiprocessing.api.RunProcsResult(return_values=, failures=, stdouts=, stderrs=)
Results of a completed run of processes started with
   "start_processes()". Returned by "PContext".
Note the following:


All fields are mapped by local rank


"return_values" - only populated for functions (not the
      binaries).


"stdouts" - path to stdout.log (empty string if no redirect)


"stderrs" - path to stderr.log (empty string if no redirect)

