Porting PVM to the VIA Architecture Using a Fast Communication Library

Authors:
Roberto Espenica;Pedro D. Medeiros
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

In this paper we present an implementation of PVM over the VIA architecture. Using VIA, the PVM communication primitives performance approaches the real hardware capabilities. As VIA is an industry standard for high performance communication on system area networks, this implementation runs on every VIA-conformant platform. The current PVM implementation is based on Berkeley Sockets. To ease the integration of VIA, a stream library (LSL - Lite Stream Library) was developed. LSL supplies a socket-like interface to VIA. LSL can be used directly by applications, thus improving their communication performance specially for small messages. Performance results obtained in the current prototype (Linux cluster using M-VIA) already show that LSL has some performance gains over the native socket interface, but is still open to enhancements.