There are currently five servers at the lab:
The gateway server is the one you log in remotely. It is not intended for computation or any other usage. This is a weak and old server but it has an important role.
Please do not use it for any other purpose but being a gateway.
These are strong servers for experimental use. Each one of them has the following spec:
Howard is a super-strong server with two CPUs and 24 cores:
The GPU server is not intended for public lab use. It is only to be used by authorized users.
You should not use this server without a permission even if you have credentials to log into it!
This server has the following spec:
All servers run Linux Ubuntu Server 64-bit.
Servers usually have a local 1TB hard drive.
All home directories are stored under /home in each server. Home directories are not shared among the servers (that is, if you put something in your home directory on one server, it will not appear in your home directory on another server).
CAUTION: There is no backup for local hard drives!
You must make sure you have your work backed up on your own computer and never rely on servers' hard drives as persistent storage.
Although most users are granted as sudoers and admins, you are requested to not install new software unless it is really required, as this may cause problems to other users and may slow down the servers.
If you do install anything, please make sure it is not already installed, and that you do not overwrite someone else's configuration.
If possible, it is a good idea to compile and run programs from within your home folder.
In any case of doubt, please consult Yotam (yotamhc (at) cs.huji.ac.il) before installing.
Although servers in management network can be accessed using their names, this table summarized the internal IP addresses of their management ports:
Server Name |
IP Address |
gw |
10.0.0.2 |
sheldon |
10.0.0.11 |
leonard |
10.0.0.12 |
penny |
10.0.0.13 |
howard | 10.0.0.14 |
rajesh | 10.0.0.10 |
In experimental network, only IP addresses can be used (not names), and these addresses are in the subnet of 192.168.0.0/24.
IP addresses reuse the last integer of the addresses in management network to avoid confusions, as described in the table below:
Server Name |
IP Address (em2 - 1G copper) |
IP Address (p1p1 - 1/10G SFP+) |
IP Address (p1p2 - 1/10G SFP+) |
sheldon |
192.168.0.11 |
192.168.1.11 |
192.168.2.11 |
leonard |
192.168.0.12 |
192.168.1.12 |
192.168.2.12 |
penny |
192.168.0.13 |
192.168.1.13 |
192.168.2.13 |
howard: em1 (SFP+): 192.168.1.14, em2 (SFP+) not connected, em3 (copper): 10.0.0.14, em4 (copper) not connected
The SFP+ ports under the 192.168.1.* network are connected through the Mellanox switch at 10Gbps.
The SFP+ ports under the 192.168.2.* network are connected through the NoviFlow switch at 10Gbps.
Next: Switches
Prev.: Equipment usage scheduling