Environment Variables
OptiStruct typically tries to avoid the use of environment variables, and instead uses either the defaults file or command line arguments, if possible.
- Parallel OptiStruct runs may require control parameters using environment variables. These are not listed in the OptiStruct documentation (refer to the corresponding MPI package documentation for further information).
- Typical system environment variables are used by OptiStruct when
necessary:
PATH, LD_LIBRARY_PATH, LDPATH
. - The OptiStruct Licensing system requires
ALTAIR_LICENSE_PATH, RADFLEX_PATH
. - The use of third-party solvers requires specific environment variables:
AMLS_EXE
. - Compute Console (ACC) uses and expects the following variables to be set:
ALTAIR_HOME
,ALTAIR_LICENSE_PATH
,HW_MSG_HELP
,ALTAIR_WISH_EXEC
, and so on. These typically are automatically set at the installation and do not require modification. - Compute Console (ACC) (and OptiStruct run script) provides automatic
licensing and system related environment variables:
PATH
,LD_LIBRARY_PATH
,LDPATH
,RADFLEX_PATH
,PYTHONHOME
, and so on. It will also try to provide suitable default values for MPI related variables, if nothing is specified. However, it will not override values existing when it is invoked. Additionally, when changing variousPATH
environment variables, it will add to the end of existing values, so your preferences will not be overwritten.
Environment Variables and Descriptions
OS_TMP_DIR = path
-
path
- Path name to directory for scratch file storage.
DOS_DRIVE_$ = path
- This environment variable allows drive letters to be assigned to
Unix paths. This facilitates copying
files which contain
INCLUDE
,TMPDIR
,INFILE
orOUTFILE
definitions containing drive letters from PC to Unix on hybrid networks.$
- Drive letter to be defined (case sensitive).
path
- Unix path with which you want to replace the drive letter.
Note: After such expansion, the paths are always interpreted as if there were a '\' immediately after the drive letter in the original PC path.
Optional Environment Variable
OS_SCRATCH_EXT = <3-character-string>
- The 3-character-string that specifies the new extension of the scratch file.
SPMD Environment Variables
I_MPI_PIN_DOMAIN = auto
I_MPI_ADJUST_BCAST = 1
I_MPI_ADJUST_REDUCE = 2
KMP_AFFINITY is not set
I_MPI_AUTH_METHOD = delegate
For IBM Platform MPI, no defaults are currently set by OptiStruct.