HP MLIB User's Guide Vol. 2 7th Ed.

Chapter 10 Introduction to ScaLAPACK 705
ScaLAPACK functionality
• X indicates the data type:
S - Single-precision real
C - Single-precision complex
D - Double-precision real
Z - Double-precision complex
• YY indicates the type of matrix:
DB - General band (diagonally dominant-like)
DT - General tridiagonal (diagonally dominant-like)
GB - General band
GE - General (i.e., unsymmetric, in some cases rectangular)
GG - general matrices, generalized problem (i.e., a pair of general matrices)
HE - Hermitian (complex)
OR - Orthogonal (real)
PB - Symmetric or Hermitian positive definite band
PO - Symmetric or Hermitian positive definite
PT - Symmetric or Hermitian positive definite tridiagonal
ST - Symmetric tridiagonal (real)
SY - Symmetric
TR - Triangular (or in some cases quasi-triangular)
TZ - Trapezoidal
UN - Unitary (complex)
• ZZZ indicates the computation performed.
ScaLAPACK functionality
ScaLAPACK can solve systems of linear equations, linear least squares
problems, eigenvalue problems, and singular value problems. ScaLAPACK can
also handle many associated computations such as matrix factorizations or
estimating condition numbers.