System Specifications:- PRAGYA:
Master Node : 1 Processor : 2 * Intel(R) Xeon(R) Gold 6330 CPU @ 2.00GHz Cores : 56 Memory : 256 GiB DDR4 DRAM Storage : 7.64 TB SSD Compute Nodes : 3 Processor : 2 * AMD(R) EPYC 9654 96-Core Processor @ 2.40 GHz Cores : 192 Memory : 768 GiB DDR5 DRAM Storage : 1.92 TB SSD Operating System : AlmaLinux 8.9 64-bit Home Directory Storage : 1.80 TB Scratch Directory Storage : 3.50 TB - RUDRA:
Master Node : 1 Processor : 2 * Intel(R) Xeon(R) Gold 6330 CPU @ 2.00GHz Cores : 56 Memory : 256 GiB DDR4 DRAM GPU : 2 * NVIDIA Corporation GA102GL [A40] GPU Cores : 21504 CUDA Cores GPU Memory : 96 GB GDDR6 VRAM Storage : 12.36 TB SSD Operating System : Ubuntu 22.04.4 LTS 64-bit Home Directory Storage : 7 TB - Note:- All the specifications mentioned above are as per node.
Getting an account:- To begin with, the intending user needs to apply for the registration. Refer to (http://www.aus.ac.in/ict-data-centre/registration/) for the registration process.
- After verifying all the details, the account will be created.
- Then, user will receive an email in the official Email ID provided intimating the creation of the account along with a temporary password set by the system to the account.
- Login using the account credentials provided and do change the temporary password provided by the system to user’s own password. Once done, user is ready to use.
Changing the password:First login using the credentials and then the password can be changed using the passwd command: $ passwd.
System Access:- Accessing the cluster:
- The cluster can be accessed through Assam University, Silchar LAN IP address provided, which allows users to login.
- The master node (Entry node) may be accessed through ssh.
- The master node has a job scheduler (called SLURM) for managing jobs.
- For submitting jobs, always use a job script and sbatch command: $ sbatch job_script.sh. Refer to the “job_scipts” directory for available job scripts.
- Do not submit the jobs directly on the master node, as the system will automatically terminate such jobs. Sometimes, it may take more than a few minutes for the job to be run on the cluster, hence submit the job into the queue.
- Remote Access:
- Using ssh command:
- Open the terminal, connect using the ssh command: $ ssh [username]@[IP_address] (i.e; Assam University, Silchar LAN IP address provided).
- Then, it will prompt for a password, enter the user’s password and hence the ssh connection will be established.
- Using PuTTY application:
- Firstly, download the PuTTY application and install it.
- Once installed, launch the PuTTY application.
- The PuTTY Configuration dialog will appear.
- Locate the “Host Name (or IP Address)” input field.
- Enter the username along with IP address: [username]@[IP_address] (i.e; Assam University, Silchar LAN IP address provided).
- Enter the password when prompted and hence the connection will be established.
- Using ssh command:
Files Transfer:- Using scp:
- To transfer files from Server to Local Machine, open the terminal and use the scp command:
scp -r [username]@[IP_address]:/[path_of_files_in_Server] /[path_in_Local_Machine] - To transfer files from Local Machine to Server, open the terminal and use the scp command:
scp -r /[path_of_files_in_Local_Machine] [username]@[IP_address]:/[path_in_Server]
- To transfer files from Server to Local Machine, open the terminal and use the scp command:
- Using WinSCP:
- Firstly, download the WinSCP application and install it.
- Once installed, launch the WinSCP application.
- The Login dialog will appear (Click ‘New Tab’, if the Login dialog does not appear).
- Click ‘New Site’ (if not selected).
- Locate the ‘Host name:’, ‘User name:’ & ‘Password:’ input field and enter the IP address, username & password respectively.
- Click ‘Login’ button and hence the connection will be established.
- Navigate to the locations of both the Local Machine and the Server on either sides.
- Finally transfer files using the ‘Drag-and-Drop’ feature.