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PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN
VERSION:1.0
BEGIN:VEVENT
DTSTART:20121114T233000Z
DTEND:20121115T000000Z
LOCATION:255-BC
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: Over the last decade, InfiniBand has become an=0Aincreasingly popular interconnect for deploying modern supercomputing=0Asystems. However, there exists no detection service=0Athat can discover the underlying network topology in a scalable=0Amanner and expose this information to runtime libraries and=0Ausers of the high performance computing systems in a convenient=0Away. In this paper, we design a novel and scalable method=0Ato detect the InfiniBand network topology by using Neighbor-=0AJoining techniques (NJ). To the best of our knowledge,=0Athis is the first instance where the neighbor joining algorithm=0Ahas been applied to solve the problem of detecting InfiniBand=0Anetwork topology. We also design a network-topology-aware MPI=0Alibrary that takes advantage of the network topology=0Aservice. The library places processes taking part in the=0AMPI job in a network-topology-aware manner with the dual=0Aaim of increasing intra-node communication and reducing the=0Along distance inter-node communication across the InfiniBand=0Afabric.
SUMMARY:Design of a Scalable InfiniBand Topology Service to Enable Network-Topology-Aware Placement of Processes
PRIORITY:3
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