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If your job does not use the system openmpi, or does not use MPI, then any desired core binding will need to be set up with whatever mechanism the software uses. Otherwise, there will be no core binding. Again, that may not be a major issue. If your job does not work well with HT then run on a number of cores equal to half of the number of slots requested and the OS scheduler will minimize contention. 

new SGE utilities

While SoGE is very similar to previous versions of SGE there are some new utilities that people may find of interest. There are manual pages for each of these.

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On previous UI HPC systems it was possible to briefly ssh to any compute node, before getting booted from that node if a registered job was not found. This was sufficient to run an ssh command, for instance, on any node. This is not the case for Argon. SSH connections to compute nodes will only be allowed if you have a registered job on that host. Of course, qlogin sessions will allow you to login to a node directly as well. Again, if you have a job running on a node you can ssh to that node in order to check status, etc. You can find the nodes of a job with the nodes-in-job command mentioned above. We ask that you not do more than observe things while logged into the node as it may have shared jobs on it.

Setting default shell

Unix attributes are now available in the campus wide Active Directory Service and Argon makes use of those. One of those attributes is the default Unix shell. This can be set via the following tool: Set Login Shell - Conch. Most people will want the shell set to /bin/bash so that would be a good choice if you are not sure. For reference, previous generation UI HPC systems set the shell to /bin/bash for everyone, unless requested otherwise. We recommend that you check your shell setting via the Set Login Shell - Conch tool and set it as desired before logging in the first time. Note that changes to the shell setting may take up to 24 hours to become effective on Argon.

Queues and Policies

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