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DTSTART:19700308T020000
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LOCATION:D166
DTSTART;TZID=America/Chicago:20181111T143000
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UID:submissions.supercomputing.org_SC18_sess174_ws_exampi105@linklings.com
SUMMARY:A Novel Approach to Supporting Communicators for In-Switch Process
 ing of MPI Collectives
DESCRIPTION:Joshua Stern and Martin Herbordt (Boston University)\n\nMPI co
 llective operations can often be performance killers in HPC applications, 
 and we seek to solve this bottleneck by offloading them to switch hardware
 . We've seen from previous works including our own that moving collectives
  into the network offers significant performance benefits. However, there 
 has been little advancement in providing support for sub-communicator coll
 ectives in an efficient manner. Using FPGAs, which provide the ability to 
 couple communication and computation, we have designed an in-switch hardwa
 re accelerator to implement support for MPI communicators and full offload
  of MPI collectives. With our design, preliminary results show that we can
  achieve up to a 10x speedup over conventional clusters for short message 
 collectives over irregular intra-communicators.\n\nTag: Exascale, MPI, Net
 works, System Software\n\nRegistration Category: Workshop Reg Pass\n\nSess
 ion Chairs: Purushotham Bangalore (University of Alabama); Ryan Grant (Que
 en's University, Canada; Power API); Daniel Holmes (Collis-Holmes Innovati
 ons); and Anthony Skjellum (Tennessee Technological University, ASCEND-TNT
 ECH)\n\n
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