| Variable |
Description |
HDF5_DEBUG |
Defines a list of debugging switches documented in the
Debugging section of the
HDF5 User's Guide. |
HDF5_NOCLEANUP |
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. |
HDF5_PREFIX |
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. |
| HDF5_DRIVER |
This variable should hold the name of a low-level HDF5
file driver such as sec2, stdio,
core, split, or
family. 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 sec2). |
HDF5_MPI_OPT_TYPES |
When set to 1, 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. |
HDF5_MPI_1_METAWRITE |
When set to 1, 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. |