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

Preface xvii

SuperLU

Refer to Part 3 of this manual for information speciﬁc to HP ScaLAPACK. To

supplement the HP speciﬁc information provided in Part 3 of this document,

refer to the standard ScaLAPACK Users’ Guide. You can access the latest

edition of the ScaLAPACK Users’ Guide at the Netlib repository at the following

URL:

http://www.netlib.org/scalapack/slug/index..html

SuperLU

This implementation provides the Distributed SuperLU library designed for

distributed memory parallel computers. It was based on the public-domain

SuperLU_DIST, which was developed at the Lawrence Berkeley National Lab

and the University of California at Berkeley.

The library contains a set of subroutines to solve a sparse linear system. The

library is implemented in ANSI C, using HP Message Passing Interface (MPI)

for communication. The library includes routines to handle both real and

complex matrices using double precision. The parallel routine names for the

double-precision real version start with the letters “pd” (e.g. pdgstrf). The

parallel routine names for the double-precision complex version start with

letters “pz” (e.g. pzgstrf). Unlike other MLIB libraries, there is not a version of

SuperLU that assumes all integers are 8 bytes in length.

The routines can be called directly from C applications. They may also be called

from Fortran applications, however, “bridge” routines (in C) must be supplied.

For details about creating bridge routines, please refer to Section 2.9.2 in the

SuperLU User’s Guide available at:

http://www.nersc.gov/~xiaoye/SuperLU

SOLVERS

Solvers is a collection of direct sparse linear system solvers and graph

partitioning routines. Symmetric systems can be solved using SMP parallelism

and structurally-symmetric systems can be solved using out-of-core

functionality. These routines have been optimized for use on Hewlett-Packard

servers. Features are: