NAME¶
symphony - mixed-integer linear program (MILP) solver
SYNOPSIS¶
symphony [ -hagrtbd ] [ -u ub ] [ -p procs ] [ -n rule ] [ -v level ] [
-s cands ] [ -c rule ] [ -k rule ] [ -m max ] [ -l pools ] [ -i iters ] [ -f
parameter_file_name ] [-j 0/1] [-o tree_out_file]
DESCRIPTION¶
This manual page briefly documents the
symphony command.
symphony is a generic MILP solver that can be invoked from the command
line (through an interactive shell or in a batch mode), or by linking to the
provided callable library. When no options are given
symphony enters
the interactive shell mode. Otherwise the program enters the batch mode, for
which a summary of options is included below.
OPTIONS¶
At a minimum, one must specify the name of the file to be read and solved.
- -h
- help
- -a
- no cut timeout
- -d
- enable graph drawing
- -g
- use cut generator
- -r
- do repricing in root
- -t
- trim the tree
- -b
- don't perform branch and cut
- -u ub
- use upper bound 'ub'
- -p procs
- allow 'procs' active nodes
- -n i
- use node selection rule 'i'
- -v i
- set verbosity to level 'i'
- -s cands
- use 'cands' candidates for strong branching
- -k i
- use rule 'i' to select child
- -m n
- allow a max of 'n' cuts to enter per iteration
- -e n
- allow a max of 'n' cut pools
- -l n k
- load balance level 'n' and iterations 'k'
- -i n
- allow a max of 'n' iterations in presolve
- -f file
- read parameters from parameter file 'file'
- -j 0/1
- whether or not to generate cgl cuts
- -z n
- set diving threshold to 'n'
- -o file
- output vbc-like tree information to file 'file'
- Solver-specific switches:
- symphony [ -H ] [ -FL file ]
- -H
- help (solver-specific switches)
- -F model
- model should be read in from file 'model' (MPS format is assumed unless -D
is also present)
- -L model
- LP format model should be read in from file 'model'
- -D data
- model is in AMPL format and data is in file 'data'
SEE ALSO¶
For a complete description, see
- /usr/share/doc/coinor-libsymphony-doc/user-guide.pdf.gz
- in the coinor-libsymphony-doc package.
-
AUTHOR¶
symphony was written by Ted Ralphs et.al.
This manual page was written by Aramian Wasielak
<aramian.wasielak@gmail.com>, based on "symphony -h" and
clp.1, for the Debian project (but may be used by others).
