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HPCC 1.4.1 Released

Source code changes:

  1. Added optimized variants of RandomAccess that use Linear Congruential Generator for random number generation.
  2. Made corrections to comments that provide definition of the RandomAccess test.
  3. Removed initialization of the main array from the timed section of optimized versions of RandomAccess.
  4. Fixed the length of the vector used to compute error when using MPI implementation from FFTW.
  5. Added global reduction to error calculation in MPI FFT to achieve more accurate error estimate.
  6. Updated documentation in README.

This release is available in the Download section of the HPCC website.


HPCC 1.4.0 Released

Source code changes:

  1. Added a new variant of RandomAccess that uses Linear Congruential Generator for random number generation.
  2. Rearranged the order of benchmarks so that HPL component runs last and may be aborted if the performance of other components was not satisfactory. RandomAccess is now first to assist in tuning the code.
  3. Added global initialization and finalization routine that allows to properly initialize and finalize external software and hardware components without changing the rest of the HPCC testing harness.
  4. Lack of hpccinf.txt is no longer reported as error but as a warning.
This release is available in the Download section of the HPCC website.

Use of Intel MKL in HPCC benchmark

This guide is intended to help current HPCC users get better benchmark performance by utilizing Intel® Math Kernel Library (Intel® MKL).


Tennessee Supercomputing Titans Triumph at HPC Challenge

Two powerful Cray XT5 systems at the Oak Ridge National Laboratory computing complex outmuscled competitors to win half of this year's High-Performance Computing (HPC) Challenge awards. Results of the "Best Performance" awards, which measure excellence in handling computing workloads, were announced Nov. 17 at SC09, an international gathering of supercomputing professionals.


The Green500 expands its coverage of energy-efficient supercomputers

Two new exploratory lists also are now open for submissions. The Open Green500 will allow supercomputers to use a combination of single-precision and double-precision to generate a correct double-precision result for LINPACK. “We hope that this will stimulate innovation by allowing hardware manufacturers to explore novel architectural solutions while numerical analysts compose novel algorithms to perhaps create a synergistic multi-grid method for LINPACK,” Feng said. Similarly, the second exploratory list will use the High Performance Computing Challenge (HPCC) benchmark for its performance results.


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