sum_million/sum_million.html

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      SUM_MILLION - A Simple Computer Benchmark
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      SUM_MILLION <br> A Simple Computer Benchmark
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    <p>
      <b>SUM_MILLION</b> 
      is a FORTRAN90 program which 
      sums the numbers from 1 to 1,000,000,
      times the computation, and computes the
      corresponding MegaFLOPS rate.
    </p>

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      Usage:
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    <p>
      <b>sum_million</b> runs the program.
    </p>

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      Licensing:
    </h3>

    <p>
      The computer code and data files described and made available on this web page 
      are distributed under
      <a href = "../../txt/gnu_lgpl.txt">the GNU LGPL license.</a>
    </p>

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      Languages:
    </h3>

    <p>
      <b>SUM_MILLION</b> is available in
      <a href = "../../c_src/sum_million/sum_million.html">a C version</a> and
      <a href = "../../cpp_src/sum_million/sum_million.html">a C++ version</a> and
      <a href = "../../f77_src/sum_million/sum_million.html">a FORTRAN77 version</a> and
      <a href = "../../f_src/sum_million/sum_million.html">a FORTRAN90 version</a> and
      <a href = "../../m_src/sum_million/sum_million.html">a MATLAB version</a>.
    </p>

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      Related Data and Programs:
    </h3>

    <p>
      <a href = "../../f_src/linpack_bench/linpack_bench.html">
      LINPACK_BENCH</a>,
      a FORTRAN90 program which 
      measures the time needed to factor and solve a linear system.
    </p>

    <p>
      <a href = "../../f_src/matmul/matmul.html">
      MATMUL</a>,
      a FORTRAN90 program which 
      is an interactive matrix multiplication benchmark program.
    </p>

    <p>
      <a href = "../../f77_src/mdbnch/mdbnch.html">
      MDBNCH</a>,
      a FORTRAN77 program which 
      is a benchmark code for a molecular dynamics calculation.
    </p>

    <p>
      <a href = "../../f_src/memory_test/memory_test.html">
      MEMORY_TEST</a>,
      a FORTRAN90 program which
      declares and uses a sequence of larger
      and larger vectors, to see how big a vector can be used on a given
      machine and compiler.
    </p>

    <p>
      <a href = "../../f_src/mxm/mxm.html">
      MXM</a>,
      a FORTRAN90 program which
      sets up a matrix multiplication problem A=B*C of arbitrary size,
      and compares the time required for IJK, IKJ, JIK, JKI, KIJ and KJI orderings
      of the loops.
    </p>

    <p>
      <a href = "../../f_src/mxv/mxv.html">
      MXV</a>, 
      a FORTRAN90 program which
      compares the performance of (DO I, DO J) loops, (DO J, DO I ) loops,
      and MATMUL for computing the product of an MxN matrix A and an N vector X.
    </p>

    <p>
      <a href = "../../f_src/nas/nas.html">
      NAS</a>,
      a FORTRAN90 program which
      runs the NASA kernel benchmark.
    </p>

    <p>
      <a href = "../../f_src/timer/timer.html">
      TIMER</a>,
      a FORTRAN90 library which
      demonstrates how to measure CPU time or elapsed time.
    </p>

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      Source Code:
    </h3>

    <p>
      <ul>
        <li>
          <a href = "sum_million.f90">sum_million.f90</a>, the source code.
        </li>
        <li>
          <a href = "sum_million.sh">sum_million.sh</a>,
          commands to compile the source code.
        </li>
      </ul>
    </p>

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      Examples and Tests:
    </h3>

    <p>
      <ul>
        <li>
          <a href = "sum_million_output.txt">sum_million_output.txt</a>,
          the output file.
        </li>
      </ul>
    </p>

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      List of Routines:
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    <p>
      <ul>
        <li>
          <b>MAIN</b> is the main program for SUM_MILLION.
        </li>
        <li>
          <b>SET_UP</b> sets up the data for the SUM_MILLION program.
        </li>
        <li>
          <b>SUM_UP</b> carries out the sum for the SUM_MILLION program.
        </li>
        <li>
          <b>TIMESTAMP</b> prints the current YMDHMS date as a time stamp.
        </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 18 July 2008.
    </i>

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