MPICH-CM: A Communication Library Design for a P2P MPI Implementation

Authors:
Anton Selikhov;George Bosilca;Cécile Germain;Gilles Fedak;Franck Cappello
Affiliations:
-;-;-;-;-
Venue:
Proceedings of the 9th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface
Year:
2002

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Abstract

The paper presents MPICH-CM - a new architecture of communications in message-passing systems, developed for MPICH-V - a MPI implementation for P2P systems. MPICH-CM implies communications between nodes through special Channel Memories introducing fully decoupled communication media. Some new properties of communications based on MPICH-CM are described in comparison with other communication architectures, with emphasis on grid-like and volunteer computing systems. The first implementation of MPICH-CM is performed as a special MPICH device connected with Channel Memory servers. To estimate the overhead of MPICH-CM, the performance of MPICH-CM is presented for basic point-to-point and collective operations in comparison with MPICH p4 implementation.