parallel processing - How to use a M-.file in a parfor loop in Matlab? -


my code inside parfor loop getting longer , longer , split up. having parts of code saved in different script files seems logical , attractive , since doesn't change except code saved seems should work. doesn't.

i usual "transparency violation error".

the problem seems typical did not find question asked or answered anywhere.

below small working example.

(yes, made function. in case of many more input , output variables becomes ugly imo , slower due communicating arguments)

c = nan(10,1); %result vector parfor loop = 1:10     = 1;     b = 2;      mfile_test %run m-file contains 1 line:     % c = + b;      c(loop)=c;  end

the mfile_test script containing line 1 line c = + b.

i beginning understand why parallel computing has issue here not how solve it. since possible without problem if had line c = + b inside parfor file cannot belief there no simple way solve (e.g. in worst case tell matlab load text file , run code here , now).

if there alternative ways structure code without using script files (and, if possible, without using functions ;)) appreciate such comments well, of course.

many thanks, daniel

parfor has various constraints make using scripts inside loop bad option. main constraint text of parfor loop must analysable see new variables might created - referred "transparency" in doc. try using function instead.


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