MESSAGING INTERRUPTIBLE BLOCKING WAIT WITH SERIALIZATION

摘要

Enhanced message passing architectures and libraries include an interruptible wait feature. After a thread X calls a completion-awaiting routine of a message passing interface library, a progress engine executes while the routine is in the blocked condition. A thread Y interrupts the routine before all messaging operations are completed. The interrupted routine returns control to thread X with an indication that the routine's completion condition is unsatisfied. The completion-awaiting routine may have the same function signature as a standard MPI routine. In some cases, thread Y interrupts the routine while requesting a lock held by thread X. In some applications, thread X is a communication thread and thread Y is one of multiple worker threads. The interruptible wait feature may be joined by an asynchronous callback feature, which associates a callback with a deterministic execution context.