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Basic Linear Algebra Comm. Subprograms - Test files for MPI

The BLACS project is an ongoing investigation whose purpose is to create a linear algebra oriented message passing interface that may be implemented efficiently and uniformly across a large range of distributed memory platforms.

You can choose between an implementation based on MPI or PVM. This package uses MPI. There are packages for the shared libraries, for the static libraries and the development files, and for test programs (this one).

Most users do not need to install this package directly because it contains test programs for the BLACS libraries. You only need these if you experience problems with ScaLAPACK. The BLACS libraries are used as a high level communications library for ScaLAPACK. ScaLAPACK is a parallel version of LAPACK and is used on Beowulf type clusters.

Package version:1.1-31


You need write access to be able to run the tester applications.

$ cp /usr/lib/blacs/* /tmp
$ cd /tmp
$ mpirun.mpich -np 4 cblacs_test_shared-mpich 



blacs-mpi (1.1-31) unstable; urgency=low

  * Rebuilding with mpi-default-dev >=1.0 (Closes: #652312)

 -- Muammar El Khatib <>  Fri, 23 Dec 2011 20:40:53 +0100

blacs-mpi (1.1-30.1) unstable; urgency=low

  * Non-maintainer upload.
  * Add support for ARCH_DEFAULT_MPI_IMPL from mpi-default-dev.
  * Add support for MPICH2.  Rename debian/blacs-openmpi.patch to the more


This package was debianized by Philipp Frauenfelder <> on
Sat, 24 Apr 1999 09:42:50 +0200

It was downloaded from

Susan Blackford <>:
 Yes, the "legal use" of the BLACS is exactly the same as for
 ScaLAPACK.  Freely-available software.

Public domain or copyright notice, quoting from:


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