How to replace matlapool by parpool in my code ?

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Momo76800
Momo76800 2015-8-23
评论： Foteini Zagklavara 2019-5-1
Hello everyone !
I worked with a code in matlab 2012 , and it worked very well at first.. But then, i used matlab 2015 and my function matlabpool disapeared , replaced by parpool. The problem is that i didn't succeed in replacing my piece of code using matlabpool.
arete_connex3D = NaN(neighborhood_size*neighborhood_size*neighborhood_size-1,numel(ROI_struct));
indexNonNaN = find(~isnan(ROI_struct));
if ~isempty(indexNonNaN)
isOpen = matlabpool('size') > 0;
if ~isOpen
matlabpool('open','local',3);
end
for n = 1:numel(indexNonNaN)
index_in_matrix = indexNonNaN(n);
pos = ind2sub_new(sz,index_in_matrix,'mat');
x = pos(1); y = pos(2); z = pos(3);
ind2 = 1;
for i = (x-floor(neighborhood_size/2)):(x+floor(neighborhood_size/2))
for j = (y-floor(neighborhood_size/2)):(y+floor(neighborhood_size/2))
for k = (z-floor(neighborhood_size/2)):(z+floor(neighborhood_size/2))
if i>=1 && i<=sz(1) && j>=1 &&j<=sz(2) && k>=1 && k<=sz(3) ...
&& ~isequal([x,y,z],[i,j,k])
arete_connex3D(ind2,index_in_matrix) = sub2ind_3D(sz,[i,j,k]);
ind2 = ind2 + 1;
end
end
end
end
end
isOpen = matlabpool('size') > 0;
if isOpen
matlabpool close
end
end
I tried some things but it didn't work, i really don't know how to do that. Thank you in advance for your help.

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采纳的回答

Matt J
Matt J 2015-8-23
编辑：Matt J 2015-8-24
Something like this perhaps,
function varargout = matlabpool(varargin)
varargout={};
arg1=varargin{1};
switch arg1
case 'open'
parpool(varargin{2:end});
case 'close'
delete(gcp('nocreate'));
case 'size'
p = gcp('nocreate'); % If no pool, do not create new one.
if isempty(p)
poolsize = 0;
else
poolsize = p.NumWorkers;
end
varargout={poolsize};
otherwise %number of workers
if ~isnumeric(arg1)
arg1=num2str(arg1);
end
parpool(arg1);
end

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