How to identify two different MACI64 computers

I use an iMac desktop and a Powerbook Pro for program development with a VPN connection to my university. They have slightly different data structures and I would like to be able to identify which one I am using by examining the output from name=computertype as I used to in earlier versions of Matlab. Now both computers return 'MACI64'. getenv is not useful as it returns the address of the current VPN connection. Is there a way to determine when I am using each computer? This is of great help in setting data and results paths.

Thanks,

Andy

[Rik]

You need to identify something that is different between the two. You could check the existence of some specific folder structure, perhaps?

[Walter Roberson]

hostname ? Amount of memory?

... I think checking for the two data structure directories is probably the most robust.

Answer 1

[Jan]

You can create a corresponding preference on each computer:

setpref('Computer', 'ID', 'Computer1');
% and on the other machine:
setpref('Computer', 'ID', 'Computer2');

Afterwards this distinguishes the machines:

if strcmp(getpref('Computer', 'ID'), 'Computer1')
    ...
else
    ...
end

Not matching your problem, because this concerns Windows only:

For an automatic detection without manual definition before under Windows:

% UUID of the machine:
[status, msg] = system(['powershell -Command ', ...
         '"(Get-CimInstance -Class Win32_ComputerSystemProduct).UUID"']);
if status == 0 && ~isempty(msg)
   HostUUID = msg(~isspace(msg));
else
   fprintf(2, '### %s: %s\n', mfilename, 'Cannot obtain UUID.');
   HostUUID = '$noUUID';
end
   
% DeviceID:
try
   msg = winqueryreg('HKEY_LOCAL_MACHINE', ...
                     'Software\Microsoft\SQMClient', 'MachineID');
   catch
      msg = '$noKey';
   end
   DeviceID = strrep(strrep(msg, '{', ''), '}', '');
end

Under Windows also:

R         = com.sun.security.auth.module.NTSystem;
DomainSID = get(R, 'DomainSID');   % or: R.getDomainSID
UserSID   = get(R, 'UserSID');     % or: R.getUserSID

[Andy Daubenspeck]

Thanks very much for this neat solution!

Very appreciated,

Andy