parfor errors when file is compiled

I'm trying to deploy an application of the form;

try
  if(isdeployed)
      matfile = 'local.mat'; % can also use uigetfile to let
      setmcruserdata('ParallelConfigurationFile',matfile);
  end
if (matlabpool('size') > 0)==1 %cerrar matlabpool si está abierto
  matlabpool close
end
matlabpool open 2;
parfor i=1:10
end
matlabpool close;
uiwait(msgbox('Success'))
catch ME
  uiwait(msgbox(ME.message))
end

This works fine on Matlab, but when compiled, it successfully loads the workers, but when calling parfor it errors saying "distcomp.remoteparfor is undefined perhaps java is not running" (if I remove the setmcruserdata and directly call matlabpool the result is the same). If I change the "parfor" for a "for" it works fine, but if I don't call matlabpool which should make the program consider parfor as a for, it still gives the same error about parfor.

I've been reading the documentation: http://www.mathworks.com/help/toolbox/compiler/f12-999353.html#bsm9wmx)

which states that "Standalone executables and libraries generated from MATLAB Compiler for parallel applications can now launch up to twelve local workers without MATLAB® Distributed Computing Server™. And that is precisely what I want to do, compile this file so that it uses the local scheduler without the need of accessing a cluster. What am I getting wrong here? how can I set the envorinment correctly without using a cluster? This soluction http://www.mathworks.com/support/solutions/en/data/1-96PSJ9/index.html?solution=1-96PSJ9 says that this issue should be solved in version 2011a, but it doesen't work. I'd appreciate your help. Regards.

Answer 1

[Kaustubha Govind]

This type of error occurs if you are attempting to compile a script instead of a function. Try changing your code to:

function myParforTest
  try
    if(isdeployed)
        matfile = 'local.mat'; % can also use uigetfile to let
        setmcruserdata('ParallelConfigurationFile',matfile);
    end
  if (matlabpool('size') > 0)==1 %cerrar matlabpool si está abierto
    matlabpool close
  end
  matlabpool open 2;
  parfor i=1:10
  end
  matlabpool close;
  uiwait(msgbox('Success'))
  catch ME
    uiwait(msgbox(ME.message))
  end
end

Also, make sure that the local.mat file is included in the CTF archive (-a option if using mcc).

[Felipe]

Thank you very much. This solved my problem. I'd have never suspected that compiling a script instead of a function could generate this error.

Answer 2

[Jim hofmann]

That worked for me too, THANKS VERY MUCH. Could the user notes be updated to explicitly mention this? It might save a lot of grief in other users.