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multithreadingmatlabparallel-processingparfor
endeavour90
endeavour90

Reputation: 87

Execute multiple functions in parfor

Currently I have several functions, named function1.m, function2.m, function3.m , ..., function10.m. Each function is independent each other. I would like to run the all the functions in one execution

currently, my code is like this, it runs the functions one by one.

for i = 1 : 10
  result = eval(sprintf('function%d.m',i));
  fprintf('%d ', result);
end

I would like to know is there a way to rewrite the code in parfor instead of for, as I know that eval does not work in parfor.

Upvotes: 1

Views: 779

Answers (2)

nrz
nrz

Reputation: 10580

You don't need to use eval at all to create a cell array of function handles using a for or parfor loop. Then all you need to do is to call each function handle stored in functions cell array.

functions = cell(1, 10);

parfor i = 1:10
    functions{i} = str2func([ 'function', num2str(i) ]);
end

parfor i = 1:10
    result = functions{i}();
    fprintf('%d ', result);
end

Upvotes: 0

Richante
Richante

Reputation: 4398

Use eval in a normal loop to populate a cell array of function handles?

functions = cell(10, 1);
for i=1:10
  functions{i} = eval(sprintf('@()function%d', i));
end
parfor i=1:10
  result = functions{i}();
  ...
end

Upvotes: 1

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