scalapack/scalapack.html

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      SCALAPACK - Parallel Linear Algebra Routines
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      SCALAPACK <br> Parallel Linear Algebra Routines
    </h1>

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    <p>
      <b>SCALAPACK</b>
      is a directory of FORTRAN90 programs which
      demonstrate the use of the SCALAPACK linear algebra library for parallel computers.
    </p>

    <p>
      Routines are available to solve the linear system A*x=b, or
      to find the matrix eigensystem, for a variety of matrix types.
      <b>SCALAPACK</b> is automatically available on many high performance
      computing systems such as the Cray T3E and the IBM SP-2, SP-3 and SP-4.
    </p>

    <p>
      <b>SCALAPACK</b> is a parallel implementation of the block-oriented
      LAPACK linear algebra library>,
      adding the PBLACS special set of communication routines to
      copy blocks of data between processors as needed, and the
      PBLAS Parallel Basic Linear Algebra Subprograms.
      As with LAPACK, a single subroutine call typically carries out the
      requested computation.
    </p>

    <p>
      <b>SCALAPACK</b> requires the the user to configure the
      processors and distribute the matrix data, before the problem
      can be solved.  A beginning user may find these tasks daunting.
    </p>

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      Related Data and Programs:
    </h3>

    <p>
      <a href = "../../f_src/blacs/blacs.html">
      BLACS</a>,
      FORTRAN90 programs which
      illustrate how to use the Basic Linear Algebra Communication Subroutines
      for linear algebra computations on a distributed memory machine.
    </p>

    <p>
      <a href = "../../f_src/lapack_examples/lapack_examples.html">
      LAPACK_EXAMPLES</a>,
      a FORTRAN90 program which
      demonstrates the use of the LAPACK linear algebra library.
    </p>

    <p>
      <a href = "../../f_src/mpi/mpi.html">
      MPI</a>,
      FORTRAN90 programs which
      demonstrate the use of MPI for parallel computing in
      distributed memory systems.
    </p>

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      <a href = "../../f_src/openmp/openmp.html">
      OPENMP</a>,
      FORTRAN90 programs which
      illustrate the use of the OpenMP application program interface
      for carrying out parallel computations in a shared memory environment.
    </p>

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      Reference:
    </h3>

    <p>
      <ol>
        <li>
          Edward Anderson, Zhaojun Bai, Christian Bischof, Susan Blackford,
          James Demmel, Jack Dongarra, Jeremy DuCroz, Anne Greenbaum,
          Sven Hammarling, Alan McKenney, Danny Sorensen,<br>
          LAPACK User's Guide,<br>
          Third Edition,<br>
          SIAM, 1999,<br>
          ISBN: 0898714478,<br>
          LC: QA76.73.F25L36.
        </li>
        <li>
          Susan Blackford, Jaeyoung Choi, Andrew Cleary, Eduardo D'Azevedo,
          James Demmel, Inderjit Dhillon, Jack Dongarra, Sven Hammarling,
          Greg Henry, Antoine Petitet, Ken Stanley, David Walker,
          Clinton Whaley,<br>
          The ScaLAPACK User's Guide,<br>
          SIAM, 1997,<br>
          ISBN13: 978-0-898713-97-8.
        </li>
        <li>
          <a href = "http://www.netlib.org/scalapack">
                     http://www.netlib.org/scalacpack </a>
          The ScaLAPACK web page.
        </li>
      </ol>
    </p>

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      Examples and Tests:
    </h3>

    <p>
      <b>LAPACK_PRB</b> is a sample program that sets up and solves
      a linear system using LAPACK.  Files you may copy include:
      <ul>
        <li>
          <a href = "lapack_prb.f90">lapack_prb.f90</a>, the source code
          that defines the problem;
        </li>
        <li>
          <a href = "lapack_prb.sh">lapack_prb.sh</a>, the commands needed
          to link the test code with LAPACK and run it;
        </li>
        <li>
          <a href = "lapack_prb_output.txt">lapack_prb_output.txt</a>,
          the output file;
        </li>
      </ul>
    </p>

    <p>
      <b>SCALAPACK_PRB1</b> is a demonstration of the use of SCALAPACK:
      <ul>
        <li>
          <a href = "scalapack_prb1.f90">scalapack_prb1.f90</a>,
          solving a linear system with SCALAPACK;
        </li>
        <li>
          <a href = "scalapack_prb1.sh">scalapack_prb1.sh</a>,
          commands to compile, link and run the test problem;
        </li>
      </ul>
    </p>

    <p>
      <b>SCALAPACK_PRB2</b> is a demonstration of the use of SCALAPACK:
      <ul>
        <li>
          <a href = "scalapack_prb2.f90">scalapack_prb2.f90</a>,
          a second example;
        </li>
        <li>
          <a href = "scalapack_prb2.sh">scalapack_prb2.sh</a>,
          commands to compile, link and run the test problem;
        </li>
      </ul>
    </p>

    <p>
      You can go up one level to <a href = "../f_src.html">
      the FORTRAN90 source codes</a>.
    </p>

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    <i>
      Last revised on 06 April 2008.
    </i>

    <!-- John Burkardt -->

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