LINE Solver
MATLAB API documentation
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matlab
src
solvers
QNS
@SolverQNS
SolverQNS.m
1
classdef SolverQNS < NetworkSolver
2
% Wrapper of LQNS
's qnsolver
3
%
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% Copyright (c) 2012-2026, Imperial College London
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% All rights reserved.
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7
methods
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function self = SolverQNS(model,varargin)
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% SELF = SolverQNS(MODEL,VARARGIN)
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self@NetworkSolver(model, mfilename);
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self.setOptions(Solver.parseOptions(varargin, self.defaultOptions));
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end
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runtime = run(self)
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function sn = getStruct(self)
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% QN = GETSTRUCT()
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% Get data structure summarizing the model
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sn = self.model.getStruct(false);
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end
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[runtime, analyzer] = runAnalyzer(self, options);
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function [allMethods] = listValidMethods(self)
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% allMethods = LISTVALIDMETHODS()
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% List valid methods for this solver
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sn = self.model.getStruct();
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allMethods = {'
default
','
conway
','
rolia
','
zhou
','
suri
','
reiser
','
schmidt
'};
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end
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end
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methods (Static)
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function featSupported = getFeatureSet()
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% FEATSUPPORTED = GETFEATURESET()
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featSupported = SolverFeatureSet;
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featSupported.setTrue({'
Sink
',...
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'
Source
',...
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'
Router
',...
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'
ClassSwitch
',...
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'
Delay
',...
45
'
DelayStation
',...
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'
Queue
',...
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'
Fork
',...
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'
Join
',...
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'
Forker
',...
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'
Joiner
',...
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'
Logger
',...
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'
Coxian
',...
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'
Cox2
',...
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'
APH
',...
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'
Erlang
',...
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'
Exp
',...
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'
HyperExp
',...
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'
Det
',...
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'
Gamma
',...
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'
Lognormal
',...
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'
MAP
',...
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'
MMPP2
',...
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'
Normal
',...
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'
PH
',...
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'
Pareto
',...
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'
Weibull
',...
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'
Replayer
',...
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'
Trace
',...
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'
Uniform
',...
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'
StatelessClassSwitcher
',...
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'
InfiniteServer
',...
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'
SharedServer
',...
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'
Buffer
',...
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'
Dispatcher
',...
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'
Server
',...
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'
JobSink
',...
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'
RandomSource
',...
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'
ServiceTunnel
',...
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'
LogTunnel
',...
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'
Buffer
', ...
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'
Linkage
',...
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'
Enabling
', ...
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'
Timing
', ...
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'
Firing
', ...
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'
Storage
', ...
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'
Place
', ...
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'
Transition
', ...
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'
SchedStrategy_INF
',...
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'
SchedStrategy_PS
',...
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'
SchedStrategy_DPS
',...
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'
SchedStrategy_FCFS
',...
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'
SchedStrategy_GPS
',...
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'
SchedStrategy_SIRO
',...
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'
SchedStrategy_HOL
',...
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'
SchedStrategy_LCFS
',...
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'
SchedStrategy_LCFSPR
',...
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'
SchedStrategy_SEPT
',...
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'
SchedStrategy_LEPT
',...
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'
SchedStrategy_SJF
',...
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'
SchedStrategy_LJF
',...
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'
RoutingStrategy_PROB
',...
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'
RoutingStrategy_RAND
',...
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'
RoutingStrategy_RROBIN
',...
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'
RoutingStrategy_WRROBIN
',...
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'
RoutingStrategy_KCHOICES
',...
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'
SchedStrategy_EXT
',...
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'
ClosedClass
',...
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'
OpenClass
'});
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end
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function [bool, featSupported] = supports(model)
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% [BOOL, FEATSUPPORTED] = SUPPORTS(MODEL)
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featUsed = model.getUsedLangFeatures();
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featSupported = SolverQNS.getFeatureSet();
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bool = SolverFeatureSet.supports(featSupported, featUsed);
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end
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end
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methods (Static)
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function bool = isAvailable()
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%ISAVAILABLE Check if QNS is available on the system path
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bool = true;
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if ispc
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[~, ret] = dos('
qns -V
');
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if contains(ret, '
not recognized
', '
IgnoreCase
', true)
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bool = false;
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return;
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end
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else
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[~, ret] = unix('
qns -V
');
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if contains(ret, '
command not found
', '
IgnoreCase
', true)
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bool = false;
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return;
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end
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end
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end
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function options = defaultOptions()
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% OPTIONS = DEFAULTOPTIONS()
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options = SolverOptions('
QNS
');
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options.timespan = [Inf,Inf];
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end
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end
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end
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