| 1 | | = Access to the computer ressources of LEGI = |
| 2 | | |
| 3 | | == computer account == |
| 4 | | All members of LEGI, including visitors, receive a computer login and password, common to all the computers belonging to the network at LEGI. This gives access to the [http://intranet.legi.grenoble-inp.fr/?lang=en intranet of LEGI] (in French), which contains various information, in particular: |
| 5 | | * [https://www.legi.grenoble-inp.fr/webmail Access to webmail] |
| 6 | | * [http://intranet.legi.grenoble-inp.fr/spip.php?rubrique22 Access to online bibliography] |
| 7 | | * [http://servcode.legi.grenoble-inp.fr/projects/sysadmin-about/wiki/ Access to the computing ressource] |
| 8 | | |
| 9 | | To enable connection of your own laptop to the network, please contact the computer support service of LEGI. |
| 10 | | |
| 11 | | Common computing ressource are reached through the server 'servcalcul3' under Linux system ( [https://servforge.legi.grenoble-inp.fr/projects/le-coriolis-platform/wiki/CoriolisUnixCommand a few useful Linux commands]). To reach this server from a Linux machine at LEGI, use the command '''ssh -CX servcalcul3''' (the option '-CX' provides a graphic terminal). |
| 12 | | |
| 13 | | For remote access with graphic interface, you can use the terminal system '''NX''', available for all the classical operating systems (Linux, Windows, MacOS). This can be used also for remote access from outside using any decent internet connexion. |
| 14 | | |
| 15 | | == Access to bibliography == |
| 16 | | Once connected to your computer at LEGI, you can access online ressources through http://sicd1.ujf-grenoble.fr/-Periodiques-electroniques-? . Then an indication 'University Joseph Fourier' indicates that you are allowed to download the pdf of the articles. |
| 17 | | Note that this does not include access to old issues of J. Fluid Mech, prior to 1997. For that you need to connect directly without going to Gael, and the logo 'LEGI' should appear. |
| 18 | | |
| 19 | | == Terminal NX client == |
| 20 | | NX client can be directly downloaded from http://www.nomachine.com/download.php. |
| 21 | | |
| 22 | | After installation you need to configure the connection settings: |
| 23 | | * host: servcalcul3.legi.grenoble-inp.fr |
| 24 | | * key: select the option Use an alternate Server key’ and upload a key ('certificat') text file. |
| 25 | | * 'Enable SSL for all traffic' (default), do not 'connect through http proxy' |
| 26 | | * different user interfaces can be chosen. The interface 'KDE' is fairly similar to Windows system. |
| 27 | | * graphical options: for a fast response select |
| 28 | | * disable !DirectDraw |
| 29 | | * disable deferred screen update |
| 30 | | * disable ZLIB stream compression |
| 31 | | * keyboard: pour un clavier francais, utiliser le menu '!Advanced/Keyboard/French(Alternative)' ET si vous avez toujours des problemes sous KDE : |
| 32 | | * tapez la commande setxkbmap fr |
| 33 | | * dans le menu "Control Center" puis "Regional & Accessibility" puis Keyboard Layout choisissez Model 105 Keys et layout France, |
| 34 | | vous devriez avoir un petit drapeau dans la barre de menu en bas a droite pour selectionner votre clavier francais. |
| 35 | | |
| 36 | | == Data transfer == |
| 37 | | Data transfer from/to outside cannot be done by NXclient (except as attached files using webmail). For that you need scp procedure, using par example [http://sourceforge.net/project/showfiles.php?group_id=21558) filezilla]. Configuration of filezilla: |
| 38 | | * host: servcalcul3.legi.grenoble-inp.fr |
| 39 | | * type of server : SFTP |
| 40 | | * account : normal |
| 41 | | * user name, etc |
| 42 | | |
| 43 | | == Data organisation == |
| 44 | | * Connection to servcalcul3 brings you to your home directory named /home/users/'login name'. |
| 45 | | * Larger data sets can be stored in /fsnet/data/legi/calcul9/data/'login name'. |
| 46 | | * Large data sets for specific projects are stored in /fsnet/project/. For the Coriolis facility, data are stored in /fsnet/project/coriolis with sub-folders indicating the year of project completion. |
| 47 | | More information is provided in [http://servcode.legi.grenoble-inp.fr/projects/sysadmin-about/wiki/HowTo/Data HowTo/Data] and [http://servcode.legi.grenoble-inp.fr/projects/sysadmin-about/wiki/HowTo/Backup HowTo/Backup]. |
| 48 | | |
| 49 | | == Matlab == |
| 50 | | Open matlab by typing 'matlab' from a terminal, or 'matlab &' to keep the terminal active for new commands. Choose as 'Current Folder' the folder which contains your processing functions. An alternative option is to declare paths to your functions, using the matlab function 'addpath' (be cause of the system installation the set of paths are not saved for next opening of matlab). |
| 51 | | |
| 52 | | To avoid overload of the server, it is advised to work on a cluster node instead of servcalcul3. This is done by typing '''oarsub -I''' on a terminal prior to opening matlab. The session is limited by default to 2 hours, but this duration can be increased, for instance to 10 hours, with the option 'oarsub -I -l walltime=10:0:0' . More advanced computing distribution on the cluster can be done with the [http://servcode.legi.grenoble-inp.fr/projects/sysadmin-about/wiki/HowTo/Calcul/Oar oar system]. |
| 53 | | |
| 54 | | To reproduce the keyboard shortcuts of Windows OS, set ‘file Preferences’, Keyboard , Shortcuts then select “WINDOWS DEFAUTLS SET. |
| 55 | | |
| 56 | | [https://www.legi.grenoble-inp.fr/servcode/projects/sysadmin-about/wiki/SoftWare/Matlab Further information on matlab]. |
| 57 | | |
| 58 | | Particle imaging velocimetry and related image analysis can be performed by the matlab package [http://servcode.legi.grenoble-inp.fr/projects/sysadmin-about/wiki/SoftWare/Matlab uvmat]. This also provides general tools for reading netcdf files, for compiling matlab programs and distribute them on the cluster. |
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