/FCOMP

/FCOMP, Ident, LEVEL
Specifies file-compression options.

SESSION: Files

Ident

Mechanical APDL file identifier. There is no default. Valid labels are:

RST	—	Results file.
DB	—	Database file.
RNNN	—	Restart file.
OSAV	—	File created during a nonlinear analysis that contains a copy of ESAV file from the last converged substep.

LEVEL

Compression level:

SPARSE	—	Use a sparsification scheme for file compression (default).
0	—	No file compression occurs.
*`n`*	—	A zlib-based file compression occurs using level number `n`, which ranges from 1 to 5.

Command Default

Files listed under Ident are compressed by default using the sparsification scheme.

Notes

Specifies file compression options for results files (.rst, .rstp, .rth, and .rmg files), database files (.db and .rdb), certain restart files (.Rnnn), and the .osav file created during a nonlinear analysis. (See Program-Generated Files in the Basic Analysis Guide for file descriptions.) Records are compressed as they are written and uncompressed as they are read (for example, by the SET command or the RESUME command).

For results files compressed using the sparsification scheme (LEVEL = SPARSE, which is the default), use the *XPL command to uncompress the file. For third party tools that need to read the results file, use the method described in Accessing Mechanical APDL Binary Files, which automatically decodes any SPARSE compressed records in the results file.

See File Compression in the Basic Analysis Guide for more details.

This command is valid only at the Begin Level.

Menu Paths

This command cannot be accessed from a menu.