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Access to JLSE systems for hands-on exercises#

What is the JLSE?#

Logging in#

Using compute nodes#

You can get an interactive session on a compute node with the following command:

qsub -I -n 1 -t 480 -q it

  • -I means interactive; you will be presented with a command line prompt on your allocated node. You can also ssh to it to open additional terminals. Your allocation will end if you log out of the primary terminal, however.
  • -n 1 means that you are requesting a single node
  • -t 480 means that you are requesting it for 8 hours (480 minutes)
  • -q it means that you want to ues the "it" queue. These are the nodes that we will use for all of this week's experiments

Configuring the software environment#

The "it" compute nodes are all running RedHat Enterprise Linux 7.5. The easiest way to set up Mochi environment is by building the components that you need using spack.

NOTES:

  • looks like the ptrace scope setting is already correct for using na+sm
  • stock gcc is very old (4.8.5) but there are newer ones in /soft. Will check with Ben re: which to use