Folder into which AttachedFiles are written
folder = getAttachedFilesFolder
folder = getAttachedFilesFolder(FileName)
| Character vector indicating location where files from job’s
|
FileName | Character vector specifying all or part of the attached file or folder name |
folder = getAttachedFilesFolder returns the path to the local
folder into which AttachedFiles are written on the worker. This
function returns an empty array if it is not called on a MATLAB® worker.
folder = getAttachedFilesFolder(FileName) returns the path
name to the specified attached folder on the worker, or the folder containing the
specified attached file. FileName can match either the full name
of the attached file or folder, or on the ending part of the name. Multiple match
results return a cell array.
If you have attached a folder, this does not match on file names within that folder.
Suppose you attach the folder
'C:\monday\tuesday\wednesday\thursday', which on the workers
is stored in /tmp/MJS/tp12345. The following table displays the
results of various match attempts.
| Specified Matching Character Vector Argument | Result |
|---|---|
getAttachedFilesFolder('C:\monday') | Empty result, because 'C:\monday' is only the
start of the path, and does not include
'thursday' |
getAttachedFilesFolder('wednesday') | Empty result, because 'wednesday' is in the
middle of the path and does not include
'thursday' |
getAttachedFilesFolder('thurs') | Empty result, because 'thurs' is not the
ending of the folder name. |
getAttachedFilesFolder('thursday') | '/tmp/MJS/tp12345' |
getAttachedFilesFolder('wednesday\thursday') | '/tmp/MJS/tp12345' |
Attach a folder to a parallel pool, then find its location on the worker to execute one of its files.
myPool = parpool; addAttachedFiles(myPool,'mydir'); spmd folder = getAttachedFilesFolder('mydir'); oldFolder = cd(folder); % Change to that folder [OK,output] = system('myExecutable'); cd(oldFolder); % Change to original folder end
Attach an executable file to a parallel pool, then change to its folder for accessing and processing some data.
myPool = parpool; addAttachedFiles(myPool,'myExecutable'); spmd system('myExecutable'); % Now on MATLAB path folder = getAttachedFilesFolder('myExecutable'); oldFolder = cd(folder); fid = open('myData.txt'); % Access data file % Process fid close(fid) cd(oldFolder); % Change back to the original folder end