Performance Issues of Distributed MPI Applications in a German Gigabit Testbed

Authors:
Thomas Eickermann;H. Grund;J. Henrichs
Affiliations:
-;-;-
Venue:
Proceedings of the 6th European PVM/MPI Users' Group Meeting on Recent Advances in Parallel Virtual Machine and Message Passing Interface
Year:
1999

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Abstract

The Gigabit Testbed West is a testbed for the planned upgrade of the German Scientific Network B-WiN. It is based on a 2.4 Gigabit/second ATM connection between the Research Centre Jülich and the GMD - National Research Center for Information Technology in Sankt Augustin. This contribution reports on those activities in the testbed that are related to metacomputing. It starts with a discussion of the IP connectivity of the supercomputers in the testbed. The achieved performance is compared with MetaMPI, an MPI library that is tuned for the use in metacomputing environments with high-speed networks. Applications using this library are briefly described.