Messaging interruptible blocking wait with serialization

A computer-readable non-transitory storage medium configured with data and with instructions that when executed cause processor(s) to perform a process for interruptible blocking wait in a messaging architecture, the process comprising the steps of:

• a thread X calling a completion-awaiting routine of a message passing interface library, the called completion-awaiting routine being configured to return successfully from a blocked condition after a specified message passing completion condition is satisfied, the completion condition specifying a list of messaging operation(s) which have not yet been completed;
• a message passing interface library progress engine executing while the completion-awaiting routine is in the blocked condition;
• a thread Y interrupting the completion-awaiting routine prior to satisfaction of the completion condition;
• and
• the interrupted completion-awaiting routine returning control to thread X in conjunction with an indication that the completion condition is unsatisfied.

A computer system comprising:

• at least one logical processor, each logical processor in operable communication with a memory;
• at least two threads residing in the memory;
• a message passing interface library progress engine residing in the memory;
• an unsatisfied completion condition specifying a list of requests which have not yet been completed;
• and
• an interruptible completion-awaiting routine of a message passing interface library, the interruptible completion-awaiting routine configured to return successfully from a blocked condition in the absence of interruption and when the completion condition is satisfied.