Newsgroups: comp.parallel.pvm
From: dongarra@dasher.cs.utk.edu (Jack Dongarra)
Subject: Availability of ScaLAPACK, the PBLAS, and the BLACS
Organization: Computer Science Dept, University of Tennessee, Knoxville
Date: 5 Mar 1995 20:59:37 GMT
Message-ID: <3jd8npINN133@CS.UTK.EDU>


The first public release of ScaLAPACK, the PBLAS, and the BLACS is now
available on netlib.  Version 1.0 of ScaLAPACK, the distributed memory 
version of LAPACK, includes factorization and solve routines for LU, QR, 
and Cholesky; reduction routines for Hessenberg form, tridiagonal form, 
and bidiagonal form; QR with column pivoting, and RQ, LQ, and QL 
factorizations; triangular inversion; and the symmetric eigenproblem.
With the exception of the symmetric eigenproblem, the current version of
ScaLAPACK is available in four precisions:  single precision real, double
precision real, single precision complex, and double precision complex.  
(At the present time, the symmetric eigenproblem is only available in double
precision real.)

The ScaLAPACK routines are built using the sequential BLAS, the BLACS,
and the PBLAS modules.  ScaLAPACK has been ported to Intel i860/Paragon
machines, IBM SP series, Thinking Machines' CM-5, and PVM,
and an MPI version will be available in the near future.

ScaLAPACK is built on a set of routines called the PBLAS.  The PBLAS
combine both the data communication and computation into one routine,
having a software interface that is very similar to the BLAS interface.

The data communication in the PBLAS is in turn provided by a set of
routines called the BLACS (Basic Linear Algebra Communication Subroutines).
The BLACS provides a portable message-passing interface targeted at 
linear algebra computations with an user interface similar to that 
of the BLAS.  Several vendors are producing optimized versions of 
the BLACS (e.g. Cray, IBM, and Meiko).

Please note that this "official" release is not compatible with 
previous test releases. If you have retrieved a previous version, 
we recommend that you download a fresh version.  

For more information on the availability of each of these packages and
their documentation, consult the scalapack or blacs indexes on netlib.

echo "send index from scalapack" | mail netlib@www.netlib.org
echo "send index from blacs" | mail netlib@www.netlib.org

The URL is:
     http://www.netlib.org/scalapack/

For further information on the BLACS, the URL is:
     http://www.netlib.org/blacs/Blacs.html

Send comments to scalapack@cs.utk.edu or blacs@cs.utk.edu, respectively.

Regards,
Jack Dongarra             Jim Demmel                Jack Dongarra
Jaeyoung Choi             Inderjit Dhillon          David Walker
Susan Ostrouchov          Ken Stanley
Antoine Petitet
Clint Whaley

Univ of Tenn., Knoxville  Univ of Calif., Berkeley  Oak Ridge Nat Lab


-- 
**************************************************************
Jack Dongarra     dongarra@cs.utk.edu      104 Ayres Hall
615-974-8295      fax: 615-974-8296        Knoxville TN, 37996
http://www.netlib.org/utk/people/JackDongarra.html

