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Problem description

A common problem on our systems is for a user job to run a node out of memory or to use more than its allocated share of memory if the node is shared with other jobs.

Purpose

Notify you that we have placed a hold on emails sent to you from the HPC system.

Sample subject line

Emails sent to email address student@buckeyemail.osu.edu in the last hour exceeded the expected volume

Apparent sender

OSC Help <OSCHelp@osc.edu>

Purpose

Notify you that one or more of your jobs was running on a compute node that crashed due to a hardware problem.

Sample subject line

Failure of job(s) 919137 due to a hardware problem at OSC

Apparent sender

OSC Help <OSCHelp@osc.edu>

Explanation

Your job failed and was not at fault. You should resubmit the job.

Purpose

Notify you that one or more of your jobs was running on a compute node that crashed due to a system software problem.

Sample subject line

Failure of job(s) 919137 due to a system software problem at OSC

Apparent sender

OSC Help <OSCHelp@osc.edu>

Explanation

Your job failed and was not at fault. You should resubmit the job. Usually the problems are caused by another job running on the node.

Purpose

Notify you that one or more of your jobs caused compute nodes to crash with an out-of-memory error.

Sample subject line

Failure of job(s) 933014,933174 at OSC due to exhaustion of physical memory

Apparent sender

OSC Help <oschelp@osc.edu>

Purpose

Notify you when your job is deleted by an administrator.

Sample subject line

PBS JOB 4717533.owens-batch.ten.osc.edu

Owens, Pitzer, Ruby

Purpose

Notify you when your job terminates abnormally.

Sample subject line

PBS JOB 944666.pitzer-batch.osc.edu

Owens, Pitzer, Ruby

Purpose

Notify you when your job begins or ends.

Sample subject line

PBS JOB 944666.pitzer-batch.osc.edu

Owens, Pitzer, Ruby

Quantum ESPRESSO (QE) is a program package for ab-initio molecular dynamics (MD) simulations and electronic structure calculations.  It is based on density-functional theory, plane waves, and pseudopotentials.

Owens, Ruby

SSHing directly to a compute node at OSC - even if that node has been assigned to you in a current batch job - and starting VNC is an "unsafe" thing to do. When your batch job ends (and the node is assigned to other users), stray processes will be left behind and negatively impact other users. However, it is possible to use VNC on compute nodes safely.

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