Developer Reference

  • 2020.2
  • 07/15/2020
  • Public Content
Contents

Matrix Storage Schemes for BLAS Routines

Matrix arguments of BLAS routines can use the following storage schemes:
  • Full storage
    : a matrix
    A
    is stored in a two-dimensional array
    a
    , with the matrix element
    A
    ij
    stored in the array element
    a
    (
    i
    ,
    j
    )
    .
  • Packed storage
    scheme allows you to store symmetric, Hermitian, or triangular matrices more compactly
    : the upper or lower triangle of the matrix is packed by columns in a one-dimensional array.
  • Band storage
    : a band matrix is stored compactly in a two-dimensional array
    : columns of the matrix are stored in the corresponding columns of the array, and
    diagonals
    of the matrix are stored in rows of the array
    .
For more information on matrix storage schemes, see Matrix Arguments in
the
Appendix
“Routine and Function Arguments”
.

Product and Performance Information

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