Author Archives: Mark Miller

JHPCE cluster unavailable from 6:00 AM on Monday, January 22nd until 5:00 PM on Wednesday, January 24th for power work

Dear JHPCE Community, Please be advised that the JHPCE cluster will be unavailable starting at 6:00 AM on Monday, January 22nd and will not be available until 5:00 PM on Wednesday, January 24th for power work and network maintenance scheduled … Continue reading

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Upcoming patching on the JHPCE cluster – August 2017

During the early part of August, we will be installing system and security patches across all of the nodes on the JHPCE cluster.  The upgrades will be done in a rolling manner so as to minimize the impact of this … Continue reading

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Memory usage on the JHPCE cluster, and availability of the “gedit” editor

Dear JHPCE community, As part of our continuing efforts to more efficiently utilize RAM on the JHPCE cluster, we will be making a couple of changes to the current cluster configuration.  Our analysis of jobs run over the last year … Continue reading

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Upcoming JHPCE downtime for power work – April 25 – 27

The JHPCE cluster will be unavailable from 5:00 AM on Tuesday, April 25th to 5:00 PM on Thursday, April 27th for planned power work that will be performed at the Bayview/MARCC facility. Please schedule your jobs accordingly. Sorry for this … Continue reading

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Maintenance on DCS01 Thursday, December 29th from 8:00 AM – 5:00 PM

The DCS01 Storage Array will be offline this Thursday, December 29th, starting at 8:00 AM for system maintenance.  Please schedule your jobs accordingly.  We may need to forcibly terminate any jobs that we find using any storage in the /dcs01 … Continue reading

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Availability of RStudio on the JHPCE cluster

We recently installed the RStudio graphical R Integrated Development Environment (IDE) on the JHPCE cluster. Some people find the RStudio program helpful in organizing R projects, and writing and debugging R programs.  For more detailed instructions on using RStudio, please … Continue reading

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JHPCE Cluster Downtime – Oct 17 – 19

We have just been informed that there is going to be power work performed at the Bayview/MARCC facility from October 17 – October 19th.  We will need to power down the JHPCE cluster for this work, so JHPCE the cluster … Continue reading

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Upcoming JHPCE Cluster Move and Downtime – August 18th – 24th

We will be moving the JHPCE cluster equipment to the University’s new collocation site on the Bayview Campus. We are on track to outgrow the existing server room, which has limited power and cooling capabilities. The change of venue will have no … Continue reading

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Upcoming changes to home directories.

tl;dr – At some point over the next month, your home directory will be changing from /home/*/USERID to /users/USERID. Recently we purchased a new storage array for the JHPCE cluster, with the intention of consolidating a number of our older, … Continue reading

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JHPCE Cluster Maintenance – Thursday, August 27th from 6:00 PM – 10:00 PM

On Thursday, August 27th from 6:00 PM – 10:00 PM, we will be performing Maintenance on the Amber1 storage array to upgrade its Operating System.   We have had a number of issues with the Amber1 array in the recent past, … Continue reading

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