ToCL: a thread oriented communication library to interface VIA and GM protocols

Authors:
Albano Alves;António Pina;José Exposto;José Rufino
Affiliations:
Instituto Politécnico de Bragança, Bragança, Portugal;Universidade do Minho; ;
Venue:
ICCS'03 Proceedings of the 2003 international conference on Computational science: PartII
Year:
2003

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Abstract

In this paper we present ToCL a thread oriented communication library specially designed to fully exploit multithreading in a multi-networked cluster environment. ToCL provides a basic set of primitives to handle zero-copy message passing between application threads spread among cluster nodes. Large messages are fragmented and sent to remote threads as single messages using multiple low-level communication subsystems. The current implementation supports both Myrinet through GM and Gigabit Ethernet through VIA but we plan to extend it to other communication subsystems.