HiGHS

Initial setup

from pyoptinterface import highs

model = highs.Model()

You need to follow the instructions in Getting Started to set up the optimizer correctly.

The capability of highs.Model

Supported constraints

Supported model attribute

Attribute

Get

Set

Name

ObjectiveSense

DualStatus

PrimalStatus

RawStatusString

TerminationStatus

BarrierIterations

DualObjectiveValue

NodeCount

NumberOfThreads

ObjectiveBound

ObjectiveValue

RelativeGap

Silent

SimplexIterations

SolverName

SolverVersion

SolveTimeSec

TimeLimitSec

Supported variable attribute

Attribute

Get

Set

Value

LowerBound

UpperBound

Domain

PrimalStart

Name

Supported constraint attribute

Attribute

Get

Set

Name

Primal

Dual

Solver-specific operations

Parameter

For solver-specific parameters, we provide get_raw_parameter and set_raw_parameter methods to get and set the parameters.

model = highs.Model()

# get the value of the parameter
value = model.get_raw_parameter("time_limit")

# set the value of the parameter
model.set_raw_parameter("time_limit", 10.0)

Information

HiGHS provides information for the model. We provide model.get_raw_information(name: str) method to access the value of information.