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Old 02-01-2018, 05:23 AM   #1
summit
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Question how to disconnect from HPC without disturbing processing


Dear Friends,

I am running a program on HPC and I want to shut down my laptop without disturbing the processing running on HPC.
So, I am looking for a command to disconnect and connect the laptop to further look into the processing running on HPC.

Thanks.
regards,
SK
 
Old 02-01-2018, 05:37 AM   #2
pan64
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that highly depends on:
1. what is that HPC
2. how do you use it (=how do you connect to it, what are you executing ...)
probably you need screen, but I'm not really sure about that.
 
Old 02-01-2018, 07:05 AM   #3
summit
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Hi

Thanks.
Connect means connect with ssh
 
Old 02-01-2018, 07:08 AM   #4
pan64
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https://www.howtoforge.com/linux_screen
 
Old 02-01-2018, 11:02 AM   #5
Reuti
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Quote:
Originally Posted by summit View Post
I am running a program on HPC and I want to shut down my laptop without disturbing the processing running on HPC.
So, I am looking for a command to disconnect and connect the laptop to further look into the processing running on HPC.
Is there no queuing system running on the HPC? Even if itís only a single machine, it makes nowadays much sense to install a queuingsystem due to the many cores which are available. The advantages are:
  • serialize your workflow (instead of starting many jobs at once, itís better that one after the other is executed if they are for example submitted on Friday afternoon and you check back in on Monday)
  • a mix of serial an parallel jobs can completely fill the machine, without overloading it
  • no need to have any session or terminal open (or be left open like with screen)
  • one can get an email once a job finishes
There are several (even free ones) available:

SLURM
PBSPro
GridEngine

Personally I would stay away from OpenPBS/Torque.

-- Reuti
 
Old 02-01-2018, 11:37 AM   #6
scasey
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Assumption: HPC is some kind of linux host/server. Hewlett-Packard, perhaps?

When necessary, I've always used nohup to prevent a job from ending on disconnect.
Running in background may also have that same effect.
 
  


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