diff options
| author | Frank Baker <fbaker@hdfgroup.org> | 1998-09-10 13:59:48 (GMT) |
|---|---|---|
| committer | Frank Baker <fbaker@hdfgroup.org> | 1998-09-10 13:59:48 (GMT) |
| commit | 858bf7813ae0d2caff41f8ed201a05ca8b761240 (patch) | |
| tree | 234990c0c0344175a89174dcad72bd2a14f3b3e3 /doc/html/Environment.html | |
| parent | dd99ecc1bc61eaf352e9e83322ff6c77b9ddcd2f (diff) | |
| download | hdf5-858bf7813ae0d2caff41f8ed201a05ca8b761240.zip hdf5-858bf7813ae0d2caff41f8ed201a05ca8b761240.tar.gz hdf5-858bf7813ae0d2caff41f8ed201a05ca8b761240.tar.bz2 | |
[svn-r681] Environment.html
New file.
Environmental variables and configuration parameters.
Copyright.html
New file.
Copyright statement, linked into User's Guide and Reference Manual.
Diffstat (limited to 'doc/html/Environment.html')
| -rw-r--r-- | doc/html/Environment.html | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/doc/html/Environment.html b/doc/html/Environment.html new file mode 100644 index 0000000..d7653a5 --- /dev/null +++ b/doc/html/Environment.html @@ -0,0 +1,66 @@ +<!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> +</html> + |