How can I write a parfor loop with nested variable?

I want to write a parfor loop with nested variables. First folder name goes from 0 to 80 and each of them include another folder like 1, 2 ,3...11. but there is an error like this: "Assignment to x not supported. Variable has the same name as a local function." Is there any one can help me, please?

I have a code shown in below:

basedir=pwd;
 filename='Analysis_GM.tcl';
 exename='OpenSees.exe';
 cmd=sprintf('"%s" < "%s"', exename, filename);

x=0:10:80

parfor i=1:length(x)
     x(i)
end

function x(i)
parfor j=1:11
   cd(fullfile(basedir, sprintf('%d',j)));
     system(cmd);
end
end

Answer 1

[Jan]

The error message is clear: You use "x" as a variable and a function. Simply use different names.

By the way: It is a very bad idea to use cd inside a parfor loop. Remember that the current folder is set globally, such that the different threads will compete. Better use absolute file names:

filename = 'Analysis_GM.tcl';
exename  = 'OpenSees.exe';
cmd      = sprintf('"%s" < "%s"', exename, filename);
parfor j=1:11
   system(fullfile(basedir, sprintf('%d',j), cmd));
end

[Esengul Cavdar]

Finally I have changed the code like this

y=50:10:80
parfor i=1:length(y)
     x(i)
end

function x(i)
  basedir=pwd; 
  filename = 'Analysis_GM.tcl';
  exename  = 'OpenSees.exe';
  cmd      = sprintf('"%s" < "%s"', exename, filename);

  parfor j=1:11
    system(fullfile(basedir, sprintf('%d',j), cmd));
  end
end

But now I have taken an error that "system cannot find the file specified." I have controlled the file names there is no mistakes.

[Jan]

I've edited your code to improve the readability. Please use the layout tools provided in this forum.

If the message tells you, that the specified file is not found, this file does not exist. If you controlled, that they do exist, the method to control the must be flawed.

I recomment not to rely on the current directory by using pwd or cd, because any callback of a timer, GUI or another thread can change this. Use full path names in every case. I assume this is the problem in your case.

basePath = 'C:\The\Folder\ToYour\Executable';
exePath  = fullfile(basePath, 'OpenSees.exe');
cmd      = sprintf('"%s" < "%s"', exePath, filename);