ScaLAPACK Implementation

• BLAS (Performance and Portability)

  • Blocked data access (Level 3 BLAS) yields good local performance,
  • Portability: standardization of efficient kernels.

• BLACS (Performance and Portability)

  • Correct level of notation: communication of matrices,
  • Efficiency: identify frequent linear algebra operations which can be optimized on various computers.

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