Computer Resources

The basic configuration of the cluster (named as Zen):

Core # (in total): 512;

Nodes #: 16;

Memory: 8GB/Core (4 TB in total);

Storage: around 70 TB;


Q1: How to connect to the cluster (or logging node)?

A1: Please use the ssh command to connect, and here is one example: ssh -X (or -Y) username@ (or Please note that the ip address is only for internal use, and is for public use. 


Q2: how to connect each computation node?

A2: The computation node is only acceable after one gets into the logging node (see Q1/A1), and at this point, no usename and pass will be necessary. The node name is followed after the ''ssh'' command, e.g., ssh zen-0-1. Pleae note the last digit indicates the node number, and please change it accordingly. 


Q3: Can we run the job directly from the command?

A3: We don''t recommend this way. Since we have installed the PBS queue system, you''d better submit your job to the computation node through the queue script.  In case you want to make a short test run, please run it computation node (not the logging node).


Q4: how to check the running status of the cluster (or which node is free)?

A4: use the command ''pbsnodes''.


Q5: What is kind of PBS queue system has been installed?

A5:  The open-source TORQUE pbs system has been installed, and here is the official documentation:

The following link will also be helpful in writing up a queue script:


Q6: What softs or tools have been installed?

A6: We have installed almost all the commonly-used softwares and packages in astronomy (e.g., IDL, python, matlab, etc. ), please ask Lijun Gou for more details. 



Q7: If I want to install some softs, who should I contact?

A7: Please send email to and, listing your software name as well as the possible path to download.