Hardware


Aeneas houses 2 3.1GHz 8-core Xeon processors with 128 GB of installed memory. There are three disk arrays; the / system is a fast SSD, and the /home system is a 80TB RAID-6 array of 8 disks. For CUDA computations there is an Nvidia Titan X.

Software


Aeneas runs Centos 7.3 install. Our goal is to provide as much flexibility to the users while expending as little effort as possible. This means that we try to take care of operating system type stuff, and users are expected to take care of their own userland software installations.

In practice, we have installed daemons, CUDA 8.0 drivers, intel compiler package, Xfce4 etc, but the installation of neuroimaging packages, python toolchains, etc. is left to the users.

For specific software installations, refer to the specific pages in the IT section of this website.

Access


There is one way to connect to Aeneas: SSH. This allows you to run analyses from the terminal, view plotting windows across an X connection, and mount Aeneas’ disks using sshfs. There is a strict university-enforced firewall in place, so no other modes of connection are possible.

ssh


To connect from a UNIX terminal: ssh -YC $USER@aeneas.psy.vu.nl, assuming that your usernames are the same everywhere. If not, fill it in. From Windows, use putty, but you’re on your own. It helps to make an alias of this command: alias aeneas='ssh -YC $USER@aeneas.psy.vu.nl'.

sshfs


To mount disks from a UNIX terminal, it helps to create a few aliases. These commands can of course also be used outside of the aliases. We mount our user folder on aeneas at ~/disks/Aeneas_Home/, assuming again that your usernames are the same everywhere.

sshfs from Mac OS X
alias aeneas_home='sshfs -p 22 $USER@aeneas.psy.vu.nl:/home/$USER ~/disks/Aeneas_Home/ \
 -oauto_cache,reconnect,defer_permissions,noappledouble,negative_vncache,volname=home'

This line can be duplicated for several other folders on the server, most importantly the /home/shared/ folder, mounted at ~/disks/Aeneas_Shared/.

alias aeneas_shared='sshfs -p 22 $USER@aeneas.psy.vu.nl:/home/shared ~/disks/Aeneas_Shared/ \
 -oauto_cache,reconnect,defer_permissions,noappledouble,negative_vncache,volname=shared &'

Then, if you want to unmount the server’s disks:

alias ua_home='umount ~/disks/Aeneas_Home'
sshfs from Linux
alias aeneas_home='sshfs -p 22 $USER@aeneas.psy.vu.nl:/home/$USER ~/disks/Aeneas_Home/ -o idmap=user,auto_cache,reconnect &'

As for Mac OS X, this line can be duplicated for several other folders on the server, most importantly the /home/shared/ folder, mounted at ~/disks/Aeneas_Shared/.

alias aeneas_shared='sshfs -p 22 $USER@aeneas.psy.vu.nl:/home/fs_subjects ~/disks/Aeneas_Subjects -o idmap=user,auto_cache,reconnect &'

Then, if you want to unmount the server’s disks:

alias ua_home='fusermount -u ~/disks/Aeneas_Home'