Call library with parfor

I use javaplex it's a library, with for i can use it without any error:

   for i=1:size(mat,1)
         max_dimension = 3; 
         max_filtration_value = 1000; 
         num_divisions = 10000;
         %options.max_filtration_value = max_filtration_value;
         %options.max_dimension = max_dimension - 1;    
        % fprintf('on est à l indice  %d\n', i); 
         maColonne = mat(i,:); %cela va mettre ta i_ème colonne dans la variable maColonne
         matricepos = vec2mat(maColonne,3);
         point_cloud=matricepos; 
         stream = api.Plex4.createVietorisRipsStream(point_cloud, max_dimension, max_filtration_value, um_divisions);
         end

but when i use the same code with parfor, i have this error :

Error: MATLAB cannot determine whether "api" refers to a function or variable.
See Parallel for Loops in MATLAB, "Unambiguous Variable Names".

    parfor i=1:size(mat,1)
         max_dimension = 3; 
         max_filtration_value = 1000; 
         num_divisions = 10000;
         %options.max_filtration_value = max_filtration_value;
         %options.max_dimension = max_dimension - 1;    
        % fprintf('on est à l indice  %d\n', i); 
         maColonne = mat(i,:); %cela va mettre ta i_ème colonne dans la variable maColonne
         matricepos = vec2mat(maColonne,3);
         point_cloud=matricepos; 
         stream = api.Plex4.createVietorisRipsStream(point_cloud, max_dimension, max_filtration_value, num_divisions);
         end

the error comme from this line:

stream = api.Plex4.createVietorisRipsStream(point_cloud, max_dimension, max_filtration_value, num_divisions);

how can i call a function form library on parfor

please

[Walter Roberson]

I suspect you will need to "import" within the loop, or at least add to the java path; http://www.mathworks.com/help/matlab/matlab_external/bringing-java-classes-and-methods-into-matlab-workspace.html

[Edric Ellis]

Are you calling javaaddpath on the client? If so, you'll need to call javaaddpath on the workers. Something like this perhaps:

spmd
    javaaddpath('path/to/javaplex');
end

[Bernie St]

Hi Arnaud, did you manage to solve this problem? I am trying to use javaplex in parfor loops and have the exact same error message. Unfortunately both adding the java path in the parfor loops as well as importing within the loop did not solve the problem for me.