HP MLIB for PA-RISC and Itanium HP-UX Version 9.5.6 Release Note

What’s in This Version

subroutines for graph partitioning, mesh partitioning, and sparse matrix reordering, as

well as auxiliary routines. HP MLIB contains the same full METIS functionality as that

in the public domain METIS, however, the routine names are different. HP MLIB METIS

routine names have been prepended with mlib_ to avoid name conflict on applications

and libraries that contain their own local version of METIS.

For more information about METIS, please refer to:

http://www-users.cs.umn.edu/~karypis/metis/metis/index.html

VMATH

VMATH is a library of vector math routines corresponding to many of the widely used scalar

math routines available with C, C++, and Fortran90.

VMATH is intended for computationally intensive mathematical applications amenable to a

vector programming style.

VMATH provides two libraries: VMATH, whose interface uses 4-byte integers; and VMATH8,

whose interface uses 8-byte integers and is otherwise equivalent to VMATH. VMATH

routines come with both Fortran and C interfaces.

For more detailed information on VMATH as well as subprogram specifications, please refer

to the HP MLIB User’s Guide 7th edition. Or refer to the man pages installed in the directory

/opt/mlib/share/man. VMATH man pages provide a man page for each subprogram.

SMP Parallelism

Parallel processing is available on multi-processor HP platforms. These systems can divide a

single computational process into smaller streams of execution. The result is that you can

have more than one processor executing on behalf of the same process.

Some BLAS-2, BLAS-3, LAPACK, Sparse Solvers, convolution, and FFT routines use SMP

parallelism that gives shared-memory parallel programmers a simple and flexible interface

for developing parallel applications.

For usage information, see “SMP Parallelism Usage” on page 28.

MPI Parallelism

Internal parallelism in ScaLAPACK and SuperLU_DIST is implemented using MPI—a

portable, scalable programming model that gives distributed-memory parallel programmers a

simple and flexible interface for developing parallel applications. The MPI parallel libraries

ScaLAPACK and SuperLU_DIST in HP MLIB were built and tested with HP-MPI Version

2.1.1. For MPI parallelism issues, refer to the HP-MPI documents available at

http://docs.hp.com.