en:documentation:tutorials:visualisation

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Ci-dessous, les différences entre deux révisions de la page.

--- en:documentation:tutorials:visualisation [2020/05/11 10:18] – fleroux
+++ en:documentation:tutorials:visualisation [2023/12/12 12:52] (Version actuelle) – supprimée ltaulell
@@ Ligne 1: / Ligne 1: @@
-====== Visualization server ======
-The **r740visu** server is dedicated to extensive visualization (OpenGL/Mesa/CUDA8) at PSMN.
-It is equipped with 2 Intel processors Xeon Gold 5122 @3.6GHz (16 logical cores) with 192 GiB of RAM.
-It is accessible using **x2go** and has a hardware accelerator **NVidia Quadro P4000©**.
-Finally, and most importantly, the server give access to the ''/scratch/E5N'' (scratch system common to ''E5-*'' queues.
-<WRAP round important>**r740visu is not a submission node.**</WRAP>
-<WRAP info>This machine was set up thanks to the preparatory work, recipes and integrations carried out on the CBP experimental platform.</WRAP>
-===== 1. Prerequisites =====
-  - [[en:documentation:tutorials:ssh:accueil|Connect to clusters]]
-  - [[en:documentation:tutorials:ssh:clef_agent_ssh|Use SSH keys and ssh-agent]] (**or** [[documentation:tutorials:ssh:putty|PuTTY/KiTTY for Windows]])
-  - [[en:documentation:tutorials:ssh:multihop_ssh|Doing hops with SSH]]
-  - Install **x2go** (x2goclient) on user's workstation (Linux, Mac or Windows => http://wiki.x2go.org/)
-===== 2. Configure the x2goclient =====
-  * New session
-<WRAP group>
-<WRAP half column>
-{{ :documentation:tutorials:x2go-01-config.png?direct&300 |}}
-</WRAP>
-<WRAP half column>
-  - Session -> New,
-  - You can return to the parameters by clicking on the small arrowhead,
-  - The session is saved in this white rectangle.
-</WRAP>
-</WRAP>
-  * Parameters: Tab Session
-<WRAP group>
-<WRAP half column>
-{{ :documentation:tutorials:x2go-02-config.png?direct&300 |}}
-</WRAP>
-<WRAP half column>
-  - Name the session,
-  - Host = **r740visu**,
-  - Try auto login -> Checked,
-  - Use proxy server -> Checked,
-  - SSH -> Checked,
-  - Host = **allo-psmn.psmn.ens-lyon.fr**,
-  - Same login -> Checked,
-  - Same password -> Checked,
-  - ssh-agent -> Checked,
-  - Session type = :!: **XFCE** :!:.
-</WRAP>
-</WRAP>
-<note warning>:!: **WARNING : the ''Session type'' NEED to be SET TO  ''XFCE''** :!:</note>
-  * Parameters: Tab Connection
-<WRAP group>
-<WRAP half column>
-{{ :documentation:tutorials:x2go-03-config.png?direct&300 |}}
-</WRAP>
-<WRAP half column>
-  - choose a speed between ADSL and WAN.
-</WRAP>
-</WRAP>
-  * Parameters: Tab Input/Output
-<WRAP group>
-<WRAP half column>
-{{ :documentation:tutorials:x2go-04-config.png?direct&300 |}}
-</WRAP>
-<WRAP half column>
-  - Customize the screen size, or leave in Full/whole mode, your choice,
-  - If necessary, force keyboard settings (Mac and Windows).
-</WRAP>
-</WRAP>
-  * Parameters : Tab Media
-<WRAP group>
-<WRAP half column>
-{{ :documentation:tutorials:x2go-05-config.png?direct&300 |}}
-</WRAP>
-<WRAP half column>
-  - Sound support -> Unchecked,
-  - printing support -> Unchecked.
-</WRAP>
-</WRAP>
-  * Parameters: Tab Directory
-<WRAP group>
-<WRAP half column>
-{{ :documentation:tutorials:x2go-06-config.png?direct&300 |}}
-</WRAP>
-<WRAP half column>
-//(nothing to do)//
-</WRAP>
-</WRAP>
-===== 3. Connection =====
-<WRAP group>
-<WRAP half column>
-{{ :documentation:tutorials:x2go-01-config.png?direct&300 |}}
-</WRAP>
-<WRAP half column>
-Just click on the session of your choice (arrow 3) to start the connection process.
-</WRAP>
-</WRAP>
-Expected result:
-{{ :documentation:tutorials:x2go-r730visu-07-xfce-desktop.png?direct |XFCE Desktop}}
-===== 3,5. Connection from outside (Linux, Mac) =====
-This paragraph concerns a connection to the visualization machine from outside the School, **from a Linux or Mac OSX client**. SSH bounces must be active, make sure you have read (understood and tested) the
-[[documentation:tutorials:ssh:multihop_ssh|related documentation]].
-<WRAP group>
-<WRAP half column>
-{{:documentation:tutorials:diagramme_ssh_externe.png?direct&300|}}
-</WRAP>
-<WRAP half column>
-__Keys :__
-  * **black** : physical connection
-  * <wrap round notice>blue</wrap> : standard ssh connection
-  * <wrap round danger>red</wrap> : virtual ssh connection (bounce)
-  * <wrap round safety>green</wrap> : NFS link (/home)
-</WRAP>
-</WRAP>
-  * Minimal modification to be made in your ''~/.ssh/config'' (on user station):
-<code bash>
-Host allo-psmn-multihop
-  User $USER
-  ProxyCommand ssh -qt $USER@ssh.psmn.ens-lyon.fr tcpconnect allo-psmn.psmn.ens-lyon.fr %p
-</code>
-<wrap important>Replace ''$USER'' by your PSMN login.</wrap>
-  * Modification x2go :
-In the tab ''Session'', block ''Proxy server'', box ''Host'', replace ''allo-psmn.psmn.ens-lyon.fr'' by the new configuration : ''allo-psmn-multihop''. You must get the same thing as in §3 at the login x2go.
-===== 4. Connection Windows/PuTTY, External access =====
-This part is about connection to visualization server from a network outside of ENS de Lyon (see {{documentation:tutorials:diagramme_ssh_externe.png?linkonly|illustration}}).
-<WRAP group>
-<WRAP half column>
-{{:documentation:tutorials:diagramme_ssh_externe.png?direct&300|}}
-</WRAP>
-<WRAP half column>
-__Légende :__
-  * **black** : physical link
-  * <wrap round notice>blue</wrap> : ssh standard connection
-  * <wrap round danger>red</wrap> : ssh virtual connection (hops)
-  * <wrap round safety>green</wrap> : NFS mount (/home)
-</WRAP>
-</WRAP>
-==== Creating an SSH tunnel ====
-<note important>**The following steps assume that you have already configured your SSH rebounds to allo-psmn (see [[documentation:tutorials:ssh:putty&#configurer_le_proxy_putty_plink|this documentation]])**</note>
-The first step is to create an SSH tunnel to the visualization machine. :
-  * Copy the gateway session (allo-psmn, Load, rename, save).
-Change the "Host Name" to that of the display machine (here, for the example, r740visu). So rename the session to **r740visu** (to follow the example) and save.
-<note important>Be sure to enter the full name in ''Host Name'' (here **r740visu.psmn.ens-lyon.fr)**</note>
-{{:documentation:tutorials:putty_conf_session_visu.png?direct&300|}}.
-  * In ''Connection->Proxy'', select ''Local''.
-  * In ''Connection->Proxy'', set "Telnet command" as follows : <code>plink.exe -load allo-psmn -nc %host:%port</code>
-{{:documentation:tutorials:putty_conf_conn_proxy_x5770.png?direct&300|}}
-  * In ''Connection->SSH->Tunnels'', set ''Source port'' on port 2222 and ''Destination'' sur <code>r740visu.psmn.ens-lyon.fr:22</code>
-{{:documentation:tutorials:putty_conf_tunnel_visu.png?direct&300|}}
-  * Return to ''Session'', save, then click ''Open''. Your tunnel is now open.
-==== X2Go connection ====
-<WRAP group>
-<WRAP half column>
-<note important>**The SSH session from Putty to r740visu must remain open, do not close the login window.**</note>
-</WRAP>
-<WRAP half column>
-{{:documentation:tutorials:putty-tunnel-cmd.png?direct&300|}}
-</WRAP>
-</WRAP>
-<WRAP group>
-<WRAP half column>
-{{:documentation:tutorials:x2go.png?direct&300|}}
-</WRAP>
-<WRAP half column>
-The X2Go session settings are as follows:
-  * In ''Host'' enter ''localhost''.
-  * In ''Username'' enter your login.
-  * Set ''SSH Port'' to 2222.
-  * Check the box ''Try automatic authentication''.
-  * Set ''Session Type'' to ''XFCE''.
-</WRAP>
-</WRAP>
-Confirm with OK, then double-click the session icon on the right side of the X2Go client. You are now connected to the graphical interface of the machine.
-{{:documentation:tutorials:x2go_desktop.png?direct&300|}}
-===== Usage =====
-Every application installed in the PSMN environment can be used as is.
-==== Numeric keyboard ====
-If your numeric keypad is not recognized, in a terminal, run the program ''numlockx''.
-==== modulefiles ====
-For every application requiring the loading of a modulefile, it is necessary to first load from a terminal the modulefile then run the application.
-Sometimes, x2go sessions don't load the ''~/.profile''. You can force it, by hand, with ''source ~/.profile'', or add this line to your ''~/.bashrc'' :
-<code bash>source /usr/share/lmod/lmod/init/bash</code>
-==== Mac users ====
-MacOS X users must have X11 Mac server installed and running prior to use x2go-client, see [[https://wiki.x2go.org/doku.php/doc:installation:x2goclient#os_x|x2goclient documentation]]
-==== VirtualGL ====
-For every application requiring hardware acceleration (OpenGL / GLX / GLSL / ...), after loading the corresponding modulefile, you must prefix the call to the application by calling the VirtualGL wrapper: '' vglrun MyApp ''
-===== Examples =====
-  * VMD
-In a terminal run:
-<code>
-source ~/.profile
-module load VMD/1.9.2
-vglrun vmd
-</code>
-{{ :documentation:tutorials:x2go-r730visu-08b-vmd.png?direct |VMD}}
-  * molden/gmolden
-In a terminal run:
-<code>
-source ~/.profile
-module load Molden/5.4
-vglrun gmolden
-</code>
-{{ :documentation:tutorials:x2go-r730visu-09-gmolden.png?direct |gmolden}}
-  * ParaView
-In a terminal run:
-<code>
-source ~/.profile
-module load ParaView/4.4.0
-vglrun paraview
-</code>
-{{ :documentation:tutorials:x2go-r730visu-10-paraview-pressure.png?direct |ParaView "pressure-volume"}}
-{{ :documentation:tutorials:x2go-r730visu-11-paraview-surfacelic.png?direct |ParaView "velocity-surfaceLIC}}
-  * Avogadro
-In a terminal run:
-<code>
-source ~/.profile
-vglrun avogadro
-</code>
-{{ :documentation:tutorials:x2go-r730visu-12-avogadro.png?direct&600 |}}

en/documentation/tutorials/visualisation.1589192295.txt.gz · Dernière modification : 2020/08/25 15:58 (modification externe)

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