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Parallel Computing in Electrical Engineering, 2004. International Conference on (2002)
Warsaw, Poland
Sept. 22, 2002 to Sept. 25, 2002
ISBN: 0-7695-1730-7
pp: 9
Noboru Tanabe , Toshiba Corporation
Hideki Imashiro , Hitachi Information Technology Co., Ltd.
Yoshihiro Hamada , Tokyo University of Agriculture and Technology
Tomohiro Kudoh , National Institute of Advanced Industrial Science and Technology
Hironori Nakajo , Tokyo University of Agriculture and Technology
Junji Yamamoto , Hitachi, Ltd.
Hideharu Amano , Keio University
ABSTRACT
DIMMnet-1 is a high performance network interface for PC clusters that can be directly plugged into the DIMM slot of a PC. By using both low latency AOTF (Atomic On-The-Fly) sending and high bandwidth BOTF (Block On-The-Fly) sending, it can overcome the overhead caused by standard I/O such as the PCI bus. Two types of DIMMnet-1 prototype boards (providing optical and electrical network interfaces) containing a Martini network interface controller chip are currently available. They can be plugged into a 100MHz DIMM slot of a PC with a Pentium-3, Pentium-4 or Athlon processor. The round-trip time for AOTF on this incompletely tuned DIMMnet-1 is 7.5 times faster than Myrinet2000. The barrier synchronization time for AOTF is 4 times faster than that of an SR8000 supercomputer. The inter-two-node floating sum operation time is 1903 ns. This shows that DIMMnet-1 holds promise for applications in which scalable performance with traditional approaches is difficult because of frequent data exchange.
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CITATION
Noboru Tanabe, Hideki Imashiro, Yoshihiro Hamada, Tomohiro Kudoh, Hironori Nakajo, Junji Yamamoto, Hideharu Amano, "Low Latency Communication on DIMMnet-1 Network Interface Plugged into a DIMM Slot", Parallel Computing in Electrical Engineering, 2004. International Conference on, vol. 00, no. , pp. 9, 2002, doi:10.1109/PCEE.2002.1115189
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