Numerical Reproducibility and Accuracy at ExaScale

  title={Numerical Reproducibility and Accuracy at ExaScale},
  author={James Demmel and Hong Diep Nguyen},
  journal={2013 IEEE 21st Symposium on Computer Arithmetic},
Given current hardware trends, ExaScale computing (1018 floating point operations per second) is projected to be available in less than a decade, achieved by using a huge number of processors, of order 109. Given the likely hardware heterogeneity in both platform and network, and the possibility of intermittent failures, dynamic scheduling will be needed to adapt to changing resources and loads. This will make it likely that repeated runs of a program will not execute operations like reductions… CONTINUE READING


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