Ready-Mode Receive: An Optimized Receive Function for MPI

Authors:
Ron Brightwell
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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Proceedings of the 9th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface

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Abstract

This paper describes an extension to the MPI Standard that offers the potential to increase performance for receiving messages. This extension, the ready-mode receive, is the receive-side equivalent of the ready-mode send. This paper describes the semantics of this new receive function and discusses the potential for performance improvement that it offers. In particular, we discuss how the current trend toward using intelligent network interfaces may increase the potential for significant performance improvement.