1- supporting a recent release of ULFM that provides non-blocking collectives.
2- rolling back to the old mechanism of notifying the completion of a native collective call using a local finish, rather than a boolean return value from X10RT functions.
3- rolling back to using one callback function in native collectives instead of two (one for success, and one for failure). A parameter is added to the original callback function, notifyDPE, for notifying place failures.
1- supporting a recent release of ULFM that provides non-blocking collectives. 2- rolling back to the old mechanism of notifying the completion of a native collective call using a local finish, rather than a boolean return value from X10RT functions. 3- rolling back to using one callback function in native collectives instead of two (one for success, and one for failure). A parameter is added to the original callback function, notifyDPE, for notifying place failures.