Mechanical APDL Basic Analysis Guide - Ansys

Chapter 21: Memory Management and Configuration
21.4. Using the Configuration File
When you execute the ANSYS program, it reads a configuration file, config130.ans, if one exists. This
file controls system-dependent settings such as the size of each file buffer, maximum number of database
pages in memory, etc. On computer systems that support mixed-case file names, such as UNIX systems, the
file name is assumed to be in lower case: config130.ans.
ANSYS searches for the config130.ans file first in the current (working) directory, next in the login (home)
directory, and finally in the ANSYS /apdl directory. The search path for config130.ans is identical to
the start130.ans and stop130.ans files.
The configuration file is a fixed-format file, consisting of a list of keywords followed by an equal (=) sign and
a number. The keyword must begin in column 1, the equal sign must be in column 9, and the number must
begin in column 10. A sample config130.ans file is shown next, followed by a brief explanation of each
of the keywords.
Sample config130.ans File
NUMRESLT=1000
NO_RSTGM=1
NO_ELDBW=0
NUM_BUFR=2
SIZE_BIO=4096
VIRTM_MB=512
NUM_VPAG=128
SIZ_VPAG=16384
NUM_DPAG=8192
MEM_GROW=12
LOCALFIL=0
CONTACTS=1000
ORDERER_=2
MX_NODES=5000
MX_ELEMS=2000
MX_KEYPT=500
MX_LINES=1000
MX_AREAS=300
MX_VOLUS=200
MX_REALS=10
MX_COUPS=10
MX_CEQNS=10
FILESPLT=128
Note
Since many of the values for config130.ans are dependent on the system being used, a range
of values for each keyword is provided. Note that on most computer systems, 1 integer word =
4 bytes.
NUMRESLT is the maximum number of result sets (substeps) allowed on the results file: 10 minimum. It defaults
to 1000 and can be changed at the Begin level with the /CONFIG,NRES command.
NO_RSTGM is a key that determines whether or not the geometry data will be written to the results file: 0
(write the data) or 1 (do not write the data). This is especially useful for large, complex analyses where the
results file would become excessively large during the solution.
NO_ELDBW is a key that determines whether or not to write results into the database after a solution. When
VALUE = 0, write results into the database. When VALUE=1, do not write results into the database. It defaults
to 0 and can be changed at the Begin level with the /CONFIG,NOELDB command.
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