LAPACK Ongoing Work

• Add functionality

  • updating/downdating, divide and conquer least squares,bidiagonal bisection, bidiagonal inverse iteration, band SVD, Jacobi methods, ...

• Move to new generation of high performance machines

  • IBM SPs, CRAY T3E, SGI Origin 2000, clusters of workstations

• New challenges

  • New languages: FORTRAN 90, HP FORTRAN, ...
  • (CMMD, MPL, NX ...)
    • many flavors of message passing, need standard (PVM, MPI): BLACS

• Highly varying ratio

• Many ways to layout data,

• Fastest parallel algorithm sometimes less stable numerically.

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