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Updating the JEInterface Matlab code

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This commit is contained in:
Marcel Kronfeld 2009-03-10 08:53:50 +00:00
parent 50dfec343f
commit b14118bb6f
4 changed files with 80 additions and 33 deletions
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13
resources/MatlabInterface/@JEInterface/JEInterface.m
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@ -3,19 +3,18 @@ function int = JEInterface(fhandle, range, varargin)
% JEInterface(interfaceName, fhandle, range)
% JEInterface(interfaceName, fhandle, range, defaultargs)
% JEInterface(interfaceName, fhandle, range, defaultargs, options...)
% arguments:
%
% Arguments:
% fhandle: a function handle defining the optimization target.
% range: a 2 x dim array defining the solution subspace with lower and
% upper bounds - or a scalar defining the bitwidth for binary
% upper bounds; or a scalar defining the bitwidth for binary
% problems.
% defaultArgs: (optional) additional constant argument to the target
% function, empty by default.
% options: (optional) options as name-value pairs defining optimization parameters,
% especially tolerance and maximum function calls.
% Check makeOoptions for default settings.
%
% Further options may be specified using setOptions with a JE options struct.
% Main options are:
% TolX: convergence criterion in the solution space
@ -85,13 +84,13 @@ if (nargin>2)
if (rem(nargin,2)==0)
error('Invalid number of arguments!');
end
disp('Reading options...');
disp('Reading options:');
for i=2:2:nargin-2
int=setOpt(int, varargin{i}, varargin{i+1});
end
end
end
display(getOptions(int));
% finally create the java object
int.mp = eva2.server.go.problems.MatlabProblem(int.dim, int.range);
disp('Java object created');

54
resources/MatlabInterface/@JEInterface/makeOptions.m
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@ -1,18 +1,31 @@
function opts = makeOptions(int, varargin)
% Create a JEInterface options set from scratch. Possible fields are:
%'Display';
%'MaxFunEvals';'MaxIter';'TolFun';'TolFunEvals';TolX';'TolXEvals', where
% all but 'TolFunEvals', 'TolXEvals' are used similar to the optimset.
%'MaxFunEvals';'MaxIter';'TolFun';'TolFunEvals';TolX';'TolXEvals', which,
% except for 'TolFunEvals' and 'TolXEvals', are used similar to the optimset.
% The latter two are interpreted as the numbers of evaluations required
% to assume convergence. Default values are TolXEvals=TolFunEvals=200,
% TolX=TolFun=1e-4, MaxFunEvals uses a default from EvA2.
% Further options are 'CreateStopBox' and 'NiceSleepTime' which are
% JE-specific. The 'CreateStopBox' option toggles the GUI box with stop
% button provided for graceful interruption of an optimization run.
% In cases without X-forwarding, a deactivation by setting it to 0 may be required,
% but note that killing optimization may break the threading mechanism. Try stopOptimize with
% the 'kill' option.
%
% 'NiceSleepTime' allows setting a sleep time (in ms) for the concurrent
% threading. Technically, either the Matlab
% or the Java thread is always waiting for the other one, which may require
% full CPU if no sleep time is employed. However, for quick function evaluations,
% even minor sleep times substantially reduce allover efficiency, so we advice
% to set small sleep times (e.g. 5 ms) only if a single function evaluation
% takes considerably longer and leave the sleep time at zero otherwise.
%
% Notice that this method creates a parameter set but does not assign it
% to the interface instance. Use setOptions to do that.
allfields = {'Display'; 'MaxFunEvals';'MaxIter';'TolFun';'TolFunEvals';...
'TolX';'TolXEvals'};
specialfields={'TolFunEvals', 'TolXEvals'};
'TolX'; 'TolXEvals'; 'CreateStopBox'; 'NiceSleepTime'};
nvararg=nargin-1;
if rem(nvararg,2)==1
@ -36,6 +49,8 @@ opts.('TolX') = 1e-4;
opts.('TolXEvals') = 200;
opts.('TolFun') = 1e-4;
opts.('TolFunEvals') = 200;
opts.('CreateStopBox')=1;
opts.('NiceSleepTime')=0;
for i=1:nvararg/2
name=varargin{2*i-1};
@ -48,18 +63,27 @@ for i=1:nvararg/2
if isempty(optIndex)
error('Unknown option %s !', name);
else
if ~isempty(strmatch(name, specialfields,'exact'))
% test for integer
if (~isscalar(value) || ~isnumeric(value) || round(value)<1)
error('invalid value type for %s, expecting numeric scalar > 1!', name);
end
value=round(value);
else
% test using optimset
optimset(stdSet, name, value);
switch name
case {'TolFunEvals', 'TolXEvals'} % for special fields, integers > 1 are allowed
if ~isscalar(value) || ~isnumeric(value) || round(value)<1
error('Invalid value type for %s, expecting positive numeric scalar!', name);
end;
value=round(value);
case 'CreateStopBox'
if ~isscalar(value) || ~isnumeric(value) || round(value)<0 || round(value)>1
error('Invalid value type for %s, expecting 0 or 1!', name);
end;
value=round(value);
case 'NiceSleepTime'
if ~isscalar(value) || ~isnumeric(value) || round(value)<0 ;
error('Invalid value type for %s, expecting numeric scalar >= 0!', name);
end;
value=round(value);
otherwise % test using optimset
optimset(stdSet, name, value);
end
% assign to struct
opts.(allfields{optIndex,:}) = value;
end
end
end
end

39
resources/MatlabInterface/@JEInterface/runEvalLoopJE.m
View File

@ -19,11 +19,15 @@ if ~isempty(int.mediator)
int.mediator.quit
int.mediator='';
end
% disp(sprintf('creating mediator'));
% set up a mediator and inform JE
int.mediator = eva2.server.go.problems.MatlabEvalMediator;
int.mediator = eva2.server.go.problems.MatlabEvalMediator(int.opts.NiceSleepTime);
int.mp.setMediator(int.mediator);
JEMediator=int.mediator;
createStopBox=int.opts.CreateStopBox;
% disp(sprintf('mediator created, calling optimize'));
% start the JE thread
if (optOrPostProc == 1)
@ -33,6 +37,7 @@ else % post processing
stopText='Stop EvA2 post processing';
int.mp.requestPostProcessing(steps, sigmaClust, nBest);
end
% disp(sprintf('calling optimize done'));
% handle the case when the optimization has been called from a users script
% and not from the toolboxes parameter estimation function (which has an
@ -47,10 +52,15 @@ if isempty(stopOptimization),
disp(sprintf('Starting optimization at %s', timeStr));
% create a cancel button box (case without SBtoolbox)
stopText=sprintf('%s (%s)', stopText, timeStr);
boxHandle=figure('Position',[100 600 250 80], 'MenuBar', 'none', 'Name', 'EvA2 optimization...', 'NumberTitle','off');
uicontrol(boxHandle,'Style', 'pushbutton', 'String', 'Cancel', 'Position', [25 25 60 30], 'Callback', 'global stopOptimization; stopOptimization=1;');
uicontrol(boxHandle,'Style', 'text', 'String', stopText, 'Position', [100 15 130 50]);
drawnow;
if (createStopBox == 1)
boxHandle=figure('Position',[100 600 250 80], 'MenuBar', 'none', 'Name', 'EvA2 optimization...', 'NumberTitle','off');
uicontrol(boxHandle,'Style', 'pushbutton', 'String', 'Cancel', 'Position', [25 25 60 30], 'Callback', 'global stopOptimization; stopOptimization=1;');
uicontrol(boxHandle,'Style', 'text', 'String', stopText, 'Position', [100 15 130 50]);
drawnow;
% else
% disp(stopText);
end
% set flag for non toolbox optimization
nontoolboxopt = 1;
else
@ -60,13 +70,19 @@ else
end
stopOnce=1;
cnt=1;
% disp(sprintf('before eval loop... %d',cnt));
% repeat the mediator thread and eval call until finished
try
while (~int.mediator.isFinished())
int.mediator.run;
% disp(sprintf('running mediator id %d',cnt));
int.mediator.run(cnt);
% disp(sprintf('after running mediator id %d',cnt));
cnt=cnt+1;
if (~int.mediator.isFinished())
%disp('getting question');
x = int.mediator.getQuestion();
%disp('question asked');
if (isempty(int.range))
%size(x)
x=convertUnsignedJE(int, x);
@ -80,6 +96,7 @@ try
else
res = feval(int.f, x, int.args);
end
% disp(sprintf('res is %d',res));
%res
catch ME
disp('function evaluation failed:');
@ -87,6 +104,7 @@ try
stopOptimization=1;
end
int.mediator.setAnswer(res);
%disp('answer provided');
drawnow;
if ((stopOptimization==1) && (stopOnce==1))
disp('User interrupt requested ...');
@ -108,7 +126,7 @@ catch ME
% clear global stopOptimization
%end
end
% disp('writing back results');
% write back results
int=setResultJE(int, int.mediator.getSolution());
int=setResultArrayJE(int, int.mediator.getSolutionSet());
@ -120,6 +138,9 @@ int.mediator='';
% and not from the toolboxes parameter estimation function (which has an
% own stop button). we decide this by checking nontoolboxopt
if nontoolboxopt == 1,
if (ishandle(boxHandle)) , close(boxHandle); end
if createStopBox==1
if (ishandle(boxHandle)) , close(boxHandle); end
end
clear global stopOptimization
end
% disp('runEvalLoop done');

7
resources/MatlabInterface/@JEInterface/setVerbose.m
View File

@ -14,8 +14,11 @@ end
if (nargin > 2)
if ischar(varargin{1})
fname=varargin{1};
disp('Writing debug output to ');
disp(fname);
if (bOn==1)
disp(['Writing debug output to ' fname]);
else
disp('Debug output deactivated');
end
else
disp('Invalid third argument, expected char. Using default output file name');
end