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diff --git a/doc/html/Environment.html b/doc/html/Environment.html index d7653a5..8308d17 100644 --- a/doc/html/Environment.html +++ b/doc/html/Environment.html @@ -1,66 +1,102 @@ <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> <html> -<head> -<title>HDF5 Library Environment Variables and Configuration Parameters</title> -</head> - -<body> - -<h1>HDF5 Library Environment Variables and Configuration Parameters</h1> - -<h2>1. Environment Variables</h2> - -The HDF5 library uses UNIX environment variables to control -or adjust certain library features at runtime. The variables and -their defined effects are as follows: - -<dir> -<dl> - <dt><tt>HDF5_DEBUG</tt> - <dd>Defines a list of debugging switches documented in the - <a href="Debugging.html">Debugging</a> section of the - <cite>HDF5 User's Guide</cite>. - - <dt><tt>HDF5_NOCLEANUP</tt> - <dd>When set to a non-empty value, the programs in the test - directory do not remove temporary HDF5 data files. - The default is for each test to remove the files before exit. - - <dt><tt>HDF5_MPI_OPT_TYPES</tt> - (for parallel beta version only) - <dd>When set to <code>1</code>, PHDF5 will use the MPI optimized - code to perform parallel read/write accesses to datasets. - Currently, this optimization fails when accessing extendable - datasets. The default is not to use the optimized code. - - <dt><tt>HDF5_MPI_1_METAWRITE</tt> - (for parallel beta version only) - <dd>When set to <code>1</code>, PHDF5 will write the metadata - via process 0 of each opened parallel HDF5 file. This should - improve I/O throughput. The default is not to use this - optimization. - -</dl> -</dir> - -<h2>2. Configuration Parameters</h2> - -The HDF5 configuration script accepts a list of parameters to control -configuration features when creating the Makefiles for the library. -The command -<br> -<code> configure --help </code> -<br> -will display the current list of parameters and their effects. - -<hr> - -<address> -<a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> -</address> - -Last modified: 9 September 1998 - -</body> + <head> + <title>HDF5 Library Environment Variables + and Configuration Parameters</title> + </head> + + <body> + + <h1>HDF5 Library Environment Variables and Configuration Parameters</h1> + + <h2>1. Environment Variables</h2> + + The HDF5 library uses UNIX environment variables to control + or adjust certain library features at runtime. The variables and + their defined effects are as follows: + + <center> + <table width="90%"> + <tr> + <th>Variable</th> + <th>Description</th> + </tr> + + <tr valign=top> + <td><code>HDF5_DEBUG</code></td> + <td>Defines a list of debugging switches documented in the + <a href="Debugging.html">Debugging</a> section of the + <cite>HDF5 User's Guide</cite>.</td> + </tr> + + <tr valign=top> + <td><code>HDF5_NOCLEANUP</code></td> + <td>If set then programs in the test directories do not + remove temporary files. The default is for each test to + remove the files before exit if the test succeeds but to + leave the files if the test fails.</td> + </tr> + + <tr valign=top> + <td><code>HDF5_PREFIX</code></td> + <td>The value of this variable is prepended to all temporary + file names created by the test programs and separated from + the base name of the file by a slash. The default is no + prefix.</td> + </tr> + + <tr valign=top> + <td><ode>HDF5_DRIVER</code></td> + <td>This variable should hold the name of a low-level HDF5 + file driver such as <code>sec2</code>, <code>stdio</code>, + <code>core</code>, <code>split</code>, or + <code>family</code>. The family driver also takes an + optional real-valued family member size in MB which + defaults to 1. If this variable is not set or empty then + the library-defined default file driver is used (which can + be set at configuration time with the H5F_LOW_DFLT cpp + constant, usually <code>sec2</code>).</td> + </tr> + + <tr valign=top> + <td><code>HDF5_MPI_OPT_TYPES</code></td> + <td>When set to <code>1</code>, parallel HDF5 will use the + MPI-optimized code to perform parallel read/write accesses + to datasets. Currently, this optimization fails when + accessing extendable datasets. The default is not to use + the optimized code.</td> + </tr> + + <tr valign=top> + <td><code>HDF5_MPI_1_METAWRITE</code></td> + <td>When set to <code>1</code>, parallel HDF5 will write the + metadata via process 0 of each opened parallel HDF5 file. + This should improve I/O throughput. The default is not to + use this optimization.</td> + </tr> + + </table> + </center> + + + <h2>2. Configuration Parameters</h2> + + The HDF5 configuration script accepts a list of parameters to control + configuration features when creating the Makefiles for the library. + The command + <br> + <code> configure --help </code> + <br> + will display the current list of parameters and their effects. + + <hr> + + <address> + <a href="mailto:hdfhelp@ncsa.uiuc.edu">HDF Help Desk</a> + </address> + + Last modified: 9 September 1998 + + </body> </html> |