==== Graphical User Interface ====

This page shows how to connect to the ''gui.hpc.unipr.it'' server using Remote Desktop Protocol (RDP).

=== Microsoft Windows (client) ===

Install the [[https://wiki.asi.unipr.it/dokuwiki/doku.php?id=guide_utente:internet:guida_vpn|FortiClient VPN]].

Activate the VPN connection:

{{ :calcoloscientifico:userguide:gui:vpn-connect.png?nolink |}}

VPN connection activated:

{{ :calcoloscientifico:userguide:gui:vpn-connected.png?nolink |}}

Connect to the gui.hpc.unipr.it server:

{{ :calcoloscientifico:userguide:gui:rdp-connect.jpg?nolink |}}

Insert username and password:

{{ :calcoloscientifico:userguide:gui:rdp-login.jpg?nolink |}}

Here is the GNOME Desktop with a solid color background:

{{ :calcoloscientifico:userguide:gui:gnome-desktop.png?direct&200 |}}

Press the right button and select "Open Terminal":

{{ :calcoloscientifico:userguide:gui:gnome-open-terminal.jpg?nolink |}}

To disconnect from the "Remote Desktop", press the shutdown button (top right) then on the username and finally on "Log Out":

{{ :calcoloscientifico:userguide:gui:rdp-logout.jpg?nolink |}}

Confirm with "Log Out":

{{ :calcoloscientifico:userguide:gui:rdp-logout-confirmation.jpg?nolink |}}

=== Linux (client) ===

Install the [[https://wiki.asi.unipr.it/dokuwiki/doku.php?id=guide_utente:internet:guida_vpn|FortiClient VPN]].

(You can try **openfortivpn** otherwise)

Install an X11 Remote Desktop Protocol (RDP) client like ''xfreerdp'' which is part of the [[http://www.freerdp.com|FreeRDP]] project.

Activate the VPN connection.

Connect to the ''gui.hpc.unipr.it'' server:

<code>
xfreerdp \
    /u:<username> \
    /size:1440x900 \
    /v:gui.hpc.unipr.it \
    /port:3389 \
    /clipboard \
    /gdi:hw \
    /bpp:24 \
    /fonts \
    /cert-ignore
</code>

<note>
Replace <username> with your username.
</note>

<note>
Customize the /size option argument or use /f (fullscreen mode).
</note>

=== MacOS (client) ===

Install the [[https://wiki.asi.unipr.it/dokuwiki/doku.php?id=guide_utente:internet:guida_vpn|FortiClient VPN]].

Install one of the following remote desktop clients

  * [[https://apps.apple.com/it/app/microsoft-remote-desktop/id1295203466|Microsoft Remote Desktop for Mac]]
  * [[https://www.freerdp.com|FreeRDP]]

to connect to the ''gui.hpc.unipr.it'' server.

==== X11 forwarding ====

Press the right button and select "Open Terminal".

Optionally, set the Italian keyboard layout using the X Keyboard Extension:

<code>
setxkbmap it
</code>

Enable X11 forwarding within a ''Remote Desktop'' session:

<code>
ssh -X localhost
</code>

For testing purposes start the graphical program ''xeyes'':

<code>
srun \
    --job-name=xeyes \
    --partition=vrt \
    --qos=vrt \
    --time=0-00:30:00 \
    --x11 \
    --pty \
    xeyes
</code>

Start ''(X-Window) CRYstalline Structures and DENsities'' ([[calcoloscientifico:userguide:xcrysden|XCrySDen]]):

<code>
srun \
    --job-name=xcrysden \
    --nodes=1 \
    --ntasks-per-node=1 \
    --cpus-per-task=4 \
    --mem=10G \
    --partition=cpu \
    --qos=cpu \
    --time=0-01:00:00 \
    --x11 \
    --pty \
    bash -c 'module load apptainer xcrysden && xcrysden'
</code>