The increasing use of System Area Network (SAN) demands efficient communication to benefit of SAN features through a direct access to network resources and avoiding kernel intervention in communication path. Recently, a consortium composed by Microsoft, Compaq and Intel authored a new standard, the Virtual Interface Architecture (VIA), designed to reduce software overhead in data transfers. This paper describes the communication protocol proposed in order to allow a complete implementation of MPI based on VIA. This protocol is needed because the plain use of the two VIA data transfer models does not allow the implementation of MPI-based on VIA, due to the large number of MPI communication flavors. To validate the goodness of the proposed protocol, a new communication layer based on VIA has been introduced in the LAM/MPI suite. The reported results, referring to a software VIA implementation for Fast Ethernet networks, exhibits a significant reduction in latency time of LAM/MPI based on VIA with respect to the same library based on the TCP/IP protocol.

Design of a VIA based communication protocol for LAM/MPI suite / Bertozzi, Massimo; Panella, Marco; Reggiani, Monica. - (2001). (Intervento presentato al convegno 9th Euromicro Workshop on Parallel and Distributed Processing PDP 2001) [10.1109/EMPDP.2001.904967].

Design of a VIA based communication protocol for LAM/MPI suite

BERTOZZI, Massimo;PANELLA, Marco;REGGIANI, Monica
2001-01-01

Abstract

The increasing use of System Area Network (SAN) demands efficient communication to benefit of SAN features through a direct access to network resources and avoiding kernel intervention in communication path. Recently, a consortium composed by Microsoft, Compaq and Intel authored a new standard, the Virtual Interface Architecture (VIA), designed to reduce software overhead in data transfers. This paper describes the communication protocol proposed in order to allow a complete implementation of MPI based on VIA. This protocol is needed because the plain use of the two VIA data transfer models does not allow the implementation of MPI-based on VIA, due to the large number of MPI communication flavors. To validate the goodness of the proposed protocol, a new communication layer based on VIA has been introduced in the LAM/MPI suite. The reported results, referring to a software VIA implementation for Fast Ethernet networks, exhibits a significant reduction in latency time of LAM/MPI based on VIA with respect to the same library based on the TCP/IP protocol.
2001
0769509886
9780769509884
Design of a VIA based communication protocol for LAM/MPI suite / Bertozzi, Massimo; Panella, Marco; Reggiani, Monica. - (2001). (Intervento presentato al convegno 9th Euromicro Workshop on Parallel and Distributed Processing PDP 2001) [10.1109/EMPDP.2001.904967].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/1449478
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