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97 lines
2.9 KiB
HTML
Executable File
97 lines
2.9 KiB
HTML
Executable File
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
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<HTML>
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<HEAD>
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<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1252">
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<META NAME="Generator" CONTENT="Microsoft Word 97">
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<TITLE>HDF5 Software Controls</TITLE>
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<META NAME="Template" CONTENT="E:\Program Files\Microsoft Office\Office\html.dot">
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</HEAD>
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<BODY LINK="#0000ff" VLINK="#800080">
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<H1>HDF5 Software Controls</H1>
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<P>
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<I>(Work in progress draft)</i>
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</P>
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<P>
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A descriptions knobs and turns such as environment variables and settings
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that controls the functionality of HDF5 libraries and tools. This is
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intended for HDF5 libraries and tools developers. HDF5 application users
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may consult the document <A HREF="../Debugging.html"><I>A guide to
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debugging HDF5 API calls</I></A>.
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</P>
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<P>
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<H2><FONT FACE="Arial">Library Building Controls</FONT></H2>
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</P>
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<P>
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<H3><FONT FACE="Arial">Environment variables</FONT></H3>
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</P>
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<DL>
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<DT><B>CC</B></DT>
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<DD><I>Used by configure.</I> Override the default C compiler.</DD>
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<DT><B>LIBS</B></DT>
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<DD><I>Used by configure.</I> Add more libraries to be used.</DD>
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<DT><B>NP</B></DT>
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<DD>Number of MPI-processes to invoke for testing. Default to 2.</DD>
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<DT><B>HDF5_NOCLEANUP</B></DT>
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<DD><I>Used by most test programs.</I> When set, temporary files
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created during tests are NOT removed. Default is to remove them
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by the end of each test. Note that the variable value does not
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matter. E.g., the values of "yes", "no" and "" all have the same
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effect, that is, NO cleanup.</DD>
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<DT><B>H5FD_mpio_Debug</B></DT>
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<DD><I>Used by the MPIO file driver for debugging.</I> Need to have
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H5FDmpio_DEBUG macro defined during compiling. Should be set to a
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string to turn on various tracing. Valid values (cases matter)
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are:
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<DL>
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<DT>t</DT>
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<DD>Trace all routine</DD>
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<DT>r</DT>
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<DD>Trace read routines</DD>
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<DT>w</DT>
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<DD>Trace write routines</DD>
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<DT>c</DT>
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<DD>Show result of MPI_Get_count</DD>
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</DL>
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</DD>
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<DT><B>HDF5_MPI_OPT_TYPES</B></DT>
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<DD><I>Used by the MPIO file driver to control the use of the optimized
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mpi input/output routine.</I> 0 turns it off, 1 turns it on (uses
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optimized code if it can).</DD>
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</DL>
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<P>
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<H3><FONT FACE="Arial">Compile Macros</FONT></H3>
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</P>
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<DL>
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<DT><B>H5FDmpio_DEBUG</B></DT>
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<DD><I>Compile macro.</I> Compile in the MPIO file driver related debugging
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statements. Defined if macro H5F_DEBUG is defined.</DD>
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<DT><B>H5FD_mpio_Debug</B></DT>
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<DD>Compile in debugging used by the MPIO file driver. Need to have
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H5FDmpio_DEBUG macro defined during compiling. Should be set to a
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string to turn on the tracing. See environment variable
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H5FD_mpio_Debug for valid values.</DD>
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</DL>
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<P>
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<HR>
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</P>
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<ADDRESS>
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<A HREF="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</A>
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</ADDRESS>
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<P><!-- Created: Fri Oct 3 11:52:31 EST 1997 --><!-- hhmts start -->Last
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modified: December 11, 2000 <!-- hhmts end --></P>
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</BODY>
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</HTML>
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