Title :
Generalized communicators in the Message Passing Interface
Author :
Foster, Ian ; Kesselman, Carl ; Snir, Marc
Author_Institution :
Div. of Math. & Comput. Sci., Argonne Nat. Lab., IL, USA
Abstract :
We propose extensions to the Message Passing Interface (MPI) that generalize the MPI communicator concept to allow multiple communication endpoints per process, dynamic creation of endpoints, and the transfer of endpoints between processes. The generalized communicator construct can be used to express a wide range of interesting communication structures, including collective communication operations involving multiple threads per process, communications between dynamically created threads, and object-oriented applications in which communications are directed to specific objects. Furthermore, this enriched functionality can be provided in a manner that preserves backward compatibility with MPI. We describe the proposed extensions, illustrate their use with examples, and discuss implementation issues
Keywords :
application program interfaces; message passing; object-oriented programming; parallel programming; utility programs; Message Passing Interface; collective communication operations; dynamic endpoint creation; dynamically created threads; endpoint transfer; generalized MPI communicator concept; generalized communicator construct; multiple communication endpoints; multiple threads; object-oriented applications; Communication system control; Computer science; Impedance; Interference; Laboratories; Liquid crystal on silicon; Mathematics; Message passing; Programming profession; Yarn;
Conference_Titel :
MPI Developer's Conference, 1996. Proceedings., Second
Conference_Location :
Notre Dame, IN
Print_ISBN :
0-8186-7533-0
DOI :
10.1109/MPIDC.1996.534093