VASP

What is HPC ?

High performance computing (HPC) is the ability to process data and perform complex calculations at high speeds. To put it into perspective, a laptop or desktop with a 3 GHz processor can perform around 3 billion calculations per second. While that is much faster than any human can achieve, it pales in comparison to HPC solutions that can perform quadrillions of calculations per second.

HPC is specifically needed for these reasons: 

  • It paves the way for new innovations in science, technology, business and academia.
  • It improves processing speeds, which can be critical for many kinds of computing operations, applications and workloads.
  • It helps lay the foundation for a reliable, fast IT infrastructure that can store, process and analyze massive amounts of data for various applications.


 How to connect to Snu HPC ?

 Enumerated here are the various types.

  • SSH  : Host magus02.snu.edu.in ( default port 22 )                              
  • From Linux Machine  : $ssh [email protected] 
  • From Windows Machine using putty.


 How to Reset Password on Megus02 ?

 Step1. Login to magus02 account.

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Step2: Use Passwd Command.

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How to Connect to Magus from outside SNU Network ?

To access MEGUS from outside the SNU network, you are required to connect through a VPN. To obtain VPN access, please connect with the IT Helpdesk.

How to Transfers data using WinSCP Windows (Client).

Step1 : Open the WinSCP and fill all the details, After that click on the Login Button.

Step 2 : Click  Yes on Warning tab.

Step 3: Connected, Now you can transfer the data using Right click of key Panel.

Applications on Megus

 Quantum espresso, BigDFT, Gaussian.

Queue Structure on Magus02.

S.No. Processor Architecture Priority Queue Name Min no of Cores Required to submit job Max no of cores allowed per job No of nodes in the queue Wall Time MAX Cores User can Use in the Queue Max No. of Pending Jobs Per user

1

AMD EPYC 7763

50

Serial_short

1

1

1

1 hour

Unlimited

 Unlimited

2

AMD EPYC 7763

50

Medium

32

128

16

1 week

512

 4

3

AMD EPYC 7543

50

Small

8

32

16

1 week

256

2 

4

AMD EPYC 7543

50

High_mem

32

256

10

2 weeks

512

2 

5

AMD EPYC 7763

50

Large

64

256

25

2 weeks

1024

2 

6

AMD EPYC 7763

50

Large_io

8

32

2

1 week

32

1 

7

Intel Xeon Platinum 8358

50

GPU

16

16

2

1 week

32

1 

8

AMD EPYC 7763

Low

Long

32

1024

All lm nodes

1 Month

1024

1
9 AMD EPYC 7763 Low Serial_long 1 1 1 1 week Unlimited Unlimited
Slurm Command Reference:
Last modified on 8 June 2023, at 12:37