Saving files within parfor loop with every iteration

Hello and thanks for reading. I am trying to utilize Matlab's convenient parallelization toolbox for some Monte-Carlo sampling (each sample is independent). Unfortunately, I don't think it is possible for my particular problem and would like an expert opinion. My problem is such:

parfor i=1:NSamples
    "Generation of Required Files for External Program Execution"
    save '/local_directory/New_file' New_Matrix -ACSII

    "Execution of External Programs" % Uses 'New_file' for execution
    Data = importdata('data.out',delimiterIn,headerlinesIn); % Import data from execution of 
                                                             % external program. 

    "Analysis in MATLAB"
    save '/local_directory/results' from_analysis -ACSII % This is not necessary but I would 
                                                         % like to be able to check progress as 
                                                         % the calculations take days.
end

There is no way of getting around not saving a new file for the external programs. Is it possible to use a 'parfor' loop when saving files to a local directory is necessary? I appreciate any assistance in this matter.

best, josh

[Felipe Rincón]

Hi Josh, did you managed to solve this issue?

Answer 1

[Edric Ellis]

I presume the problem is that saving data to the disk is causing clashes. You need to make each worker write its results to a separate file. See this answer for more details:

http://www.mathworks.co.uk/matlabcentral/answers/33127#answer_41790