Corpus ID: 2287828

An Evaluation of the ORNL Cray XT 3

  title={An Evaluation of the ORNL Cray XT 3},
  author={S. Alam and R. Barrett and Mark R. K{\"u}hn and O. Messer and R. Roth and J. Vetter and P. H. Worley},
  • S. Alam, R. Barrett, +4 authors P. H. Worley
  • Published 2006
  • In 2005, Oak Ridge National Laboratory received delivery of a 5,294 processor Cray XT3. The XT3 is Cray’s third-generation massively parallel processing system. The ORNL system uses a singleprocessor node built around the AMD Opteron and uses a custom chip—called SeaStar—for interprocessor communication. The system uses a lightweight operating system called Catamount on its compute nodes. This paper provides a performance evaluation of the Cray XT3, including measurements for microbenchmark… CONTINUE READING
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