[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Condor-users] MCR MATLAB Issues

On 8/13/07, James Snyder <jbsnyder@xxxxxxxxx> wrote:
> Hi -
> I initially had some great success with getting MATLAB compiler compiled
> code (using lcc), but lately I'm having trouble with the jobs that have been
> submitted running on remote WinXP hosts.
> The main error I'm currently getting back is "??? Undefined function or
> variable 'matlabrc'."
> Some machines are also giving me:
> Could not create directory: 'C:\Documents and Settings\Default
> User\Application
> Data\MathWorks\MATLAB\mcr_v75\main_6C985847B4BE48E9B6364FFEB5FFBE97'
> ??? Undefined function or variable 'matlabrc'.
> I don't understand why it would be attempting to write out to this location
> on the C: drive.

It is following the windows dev guidelines for where to put
application data which should not be user visible but may need to be
persisted across sessions.
This would conceptually be %APPDATA%\CompanyName\AppName but in fact
should be located in code by the Shell32 api SHGetFolderPath().
I do not know if this respects changes to the environment variable (I
doubt it - though screwing with the registry might work).

If you can handle it security wise is is probably ok to give all local
users the relevant rights this area. Better still would be to
pre-create the MathWorks\MATLAB directory for the default user and
give all local users Create Folders/Append Data rights. (this assumes
you can pre-setup all your submit machines)

> And the bat file I'm using to get things up and running (the MCR libraries
> are served from a Linux host running samba):
> set
> net use m: \\<removed>\lab_bin /USER:condor /PERSISTENT:no <removed>

The following should work fine

> set PATH=m:\extrabin\win32\mcr\v75\runtime\win32;%PATH%
> set TMP=%TMPDIR%

But I think these stand a good chance of not


> I added the APPDATA and ALLUSERSPROFILE hoping to prevent it from trying to
> write to the default user app data directory, no joy there.  Any
> suggestions?  The compiled exe file works just fine when run locally on a
> machine.

Basically it's a perms thing. By default I do not know if XP gives
Everyone the perms required.
On my machine "Everyone" does not have Create Folders/Append Data nor
Create Files on the root of AppData in Default User (nor for that
matter in a random selection of the sub folders that exist). My perms
may not be the defaults however.

You may be able to run matlab in a way that doesn't try to write the
data it is trying to store (again I have no idea how). using
RunAsOwner with the relevant credential setup should also fix it since
you should stop using the Default User directory...