sponsored byACMIEEE The International Conference for High Performance 
Computing, Networking, Storage and Analysis
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SCHEDULE: NOV 15-20, 2015

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Extremely Dense 2-Phase Immersion Cooled HPC System

SESSION: Hardware and Architecture

EVENT TYPE: Exhibits, Exhibitor Forums

EVENT TAG(S): Hardware and Architecture

TIME: 3:30PM - 4:00PM

SESSION CHAIR(S): David Martin

Presenter(s):Mondrian Nuessle



EXTOLL network technology is a direct network and is dedicated to HPC through its high bandwidth, low latency and high hardware message rate. This technology has been brought to market by EXTOLL’s TOURMALET chip which is available as PCIexpress gen3 x16 board or as a single-chip solution for integration into customers’ hardware.
Besides performance, EXTOLL’s network technology allows for hostless nodes, i.e. one node comprises an EXTOLL NIC and an accelerator like Intel’s KNC. In order to create an extremely dense system with high compute performance, EXTOLL constructed its novel 2-phase immersion cooling system GreenICE. It is capable of running 32 nodes within a 19” 10U chassis yielding 38.4 TFLOPS. 10KW heat is dissipated by hot water cooling. System design is outlined and measurements from first installations are reported.

Chair/Presenter Details:

David Martin (Chair) - Argonne National Laboratory|

Mondrian Nuessle - EXTOLL GmbH

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