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Development of Lattice QCD Tool Kit on Cell Broadband Engine Processor

We report an implementation of a code for SU(3) matrix multiplication on Cell/B.E., which is a part of our project, Lattice Tool Kit on Cell/B.E.. On QS20, the speed of the matrix multiplication on SPE in single precision is 227GFLOPS and it becomes 20GFLOPS {this vaule was remeasured and corrcted.} together with data transfer from main memory by DNA transfer, which is 4.6% of the hardware peak speed (460GFLOPS), and is 7.4% of the theoretical peak speed of this calculation (268.77GFLOPS). We briefly describe our tuning procedure.

preprint2012arXivOpen access
Shinji Motoki Yoshiyuki NakagawaKeitaro NagataKoichi HashimotoKiyoshi MizumaruAtsushi Nakamura
hep-lat
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Shinji Motoki Yoshiyuki NakagawaKeitaro NagataKoichi HashimotoKiyoshi MizumaruAtsushi Nakamura

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