Visualization node

Our visualization node, called “fisheye“, allows you to use high demand 2D & 3D applications such as GiD.

How to access

All the accesses must been done from CIMNE Barcelona local net or using a VPN connection. If you need a VPN key ask for it at

Using vglconnect (only GNU/Linux)

  1. Install VirtualGL. Instructions to setup version 2.5.1 at
  2. Connect to fisheye with your user (you’ll need to put your password twice):
    $ vglconnect -b /opt/VirtualGL/bin -s <your_user>

Using VNC (Windows & GNU/Linux)

  1. Install TurboVNC. Intructions to setup version 2.1.1 at
  2. Acces to via SSH:
    $ ssh -l <your_user>
  3. Start a new instance of VNC server (input an access password will be required first time):
    $ vncserver
    You will require a password to access your desktops.
    Would you like to enter a view-only password (y/n)? n
    Desktop 'TurboVNC: fisheye:1 (<your_user>)' started on display fisheye:1
    Creating default startup script /home/<your_user>/.vnc/xstartup.turbovnc
    Starting applications specified in /home/<your_user>/.vnc/xstartup.turbovnc
    Log file is /home/<your_user>/.vnc/fisheye:1.log
  4. Check the display assigned to your instance (1 at the output example):
    Desktop 'TurboVNC: fisheye:1 (<your_user>)' started on display fisheye:1
  5. Connect with TurboVNC to your display (we use 1 following the previous example):
    1. GNU/Linux) From another shell (change the path to vncviewer if needed and the assigned display after “:”):
      $ /opt/TurboVNC/bin/vncviewer
    2. Windows) Open TurboVNC viewer from the menu and then connect to your display (change the assigned display after “:”):





How to use it

Using vglconnect (only GNU/Linux)

Once you are connected to the node you can start an application with the following command:

$ vglrun application

For example, to start GiD:

$ vglrun gid

Also take into account that you can use your home directory or a faster disk space at /scratch that has an amount of 6TB. By the moment this directory don’t have any space restriction, please use it conveniently and free up the used space once you finished your work.

Using VNC (Windows & GNU/Linux)

Once you are connected to your VNC session you can start an Xterm console or an application from the bottom menu or from the right click menu.







From an Xterm console you can also follow the vglconnect mode described above.

Specs of node

The node is a Dell PowerEdge R730 with the following tech specs:

  • GPU: AMD FirePro W7000 (S7000)
  • Total cores: 16 Haswell-EP
  • Total RAM: 128 GB
  • CPU: 2 x Intel Xeon E5-2630 v3
    • Family: Intel Xeon E5-2600 v3
    • Model: E5-2630 v3
    • Architecture: Haswell
    • Socket: Socket 2011-3 / R3 / LGA2011-3
    • Cores: 8
    • Core speed: 2.4 GHz (turbo 3.2 GHz)
    • L1 cache: 8 x 32 KB for instructions and 8 x 32 KB for data
    • L2 cache: 8 x 256 KB for data
    • L3 cache 3 x 20 MB for data
    • QPI: 2 links at 8 GT/s (4000 MHz)
    • Memory channels: 4
  • RAM per CPU: 8 x 16 GB DDR4 @ 2133 MHz
  • Storage: 8 x HD 7.2K SATA, 2.5, 1 TB
  • Connections:
    • Ethernet: 4 x 1 Gb/s
    • Infiniband: 1 x 40 Gb/s