pywr.solvers package

Submodules

pywr.solvers.cython_glpk module

class pywr.solvers.cython_glpk.AbstractNodeData

Bases: object

id
class pywr.solvers.cython_glpk.CythonGLPKSolver

Bases: object

dump_glpk()
dump_lp()
dump_mps()
reset()
retry_solve
route_flows_arr
routes
save_routes_flows
setup()
solve()
stats
use_presolve

pywr.solvers.cython_lpsolve module

class pywr.solvers.cython_lpsolve.CythonLPSolveSolver

Bases: object

route_flows_arr
routes
save_routes_flows
setup()
solve()
stats

Module contents

This module contains a Solver baseclass and several implemented subclasses.

Solvers are used to with pywr.core.Model classes to solve the network allocation problem every time step.

Currently there are only linear programme based solvers using,
  • GLPK
  • LPSolve55
class pywr.solvers.CythonGLPKSolver(*args, **kwargs)

Bases: pywr.solvers.Solver

Python wrapper of Cython GLPK solver.

This is required to subclass Solver and get the metaclass magic.

dump_glpk(filename)
dump_lp(filename)
dump_mps(filename)
name = 'glpk'
reset()
retry_solve
routes
routes_flows_array
save_routes_flows
setup(model)
solve(model)
stats
class pywr.solvers.CythonLPSolveSolver(*args, **kwargs)

Bases: pywr.solvers.Solver

Python wrapper of Cython LPSolve55 solver.

This is required to subclass Solver and get the metaclass magic.

name = 'lpsolve'
reset()
routes
routes_flows_array
save_routes_flows
setup(model)
solve(model)
stats
class pywr.solvers.Solver(*args, **kwargs)

Bases: object

Solver base class from which all solvers should inherit

name = 'default'
reset()
setup(model)
solve(model)
stats