GAMSShell

(class from pyomo.solvers.plugins.solvers.GAMS)

class pyomo.solvers.plugins.solvers.GAMS.GAMSShell(**kwds)

Bases: _GAMSSolver

A generic shell interface to GAMS solvers.

__init__(**kwds)

Methods

__init__(**kwds)
available([exception_flag])	True if the solver is available.
default_variable_value()
executable()	Returns the executable used by this solver.
license_is_valid()
set_options(istr)
solve(*args, **kwds)	Solve a model via the GAMS executable.
version()	Returns a 4-tuple describing the solver executable version.
warm_start_capable()	True is the solver can accept a warm-start solution.

Member Documentation

available(exception_flag=True)

True if the solver is available.

executable()

Returns the executable used by this solver.

solve(*args, **kwds)

Solve a model via the GAMS executable.

Keyword Arguments:

• tee=False (bool) – Output GAMS log to stdout.

• logfile=None (str) – Filename to output GAMS log to a file.

• load_solutions=True (bool) – Load solution into model. If False, the results object will contain the solution data.

• keepfiles=False (bool) – Keep temporary files.

• tmpdir=None (str) – Specify directory path for storing temporary files. A directory will be created if one of this name doesn’t exist. By default uses the system default temporary path.

• report_timing=False (bool) – Print timing reports for presolve, solver, postsolve, etc.

• io_options (dict) – Options that get passed to the writer. See writer in pyomo.repn.plugins.gams_writer for details. Updated with any other keywords passed to solve method. Note: put_results is not available for modification on GAMSShell solver.

version()

Returns a 4-tuple describing the solver executable version.

warm_start_capable()

True is the solver can accept a warm-start solution.