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This section is here to provide the user of an overview and index of what can be found in the News directories.

• News Items: History of all news announcements made by HCPC this year including notifications of presentations, downtimes and policy changes.
• 2007 News Items: History of all news announcements make by CHPC in 2007 including notifications of presentations, downtimes and policy changes.
• 2006 News Items: History of all news announcements make by CHPC in 2006 including notifications of presentations, downtimes and policy changes.
• 2005 News Items: History of all news announcements make by CHPC in 2005 including notifications of presentations, downtimes and policy changes.
• 2004 News Items: History of all news announcements make by CHPC in 2004 including notifications of presentations, downtimes and policy changes.
• Downtimes: Downtimes in the current year.
• 2007 Downtimes: Downtimes in 2007.
• 2006 Downtimes: Downtimes in 2006.
• 2005 Downtimes: Downtimes in 2005.
• 2004 Downtimes: Downtimes in 2004.
• Current System Status: Summary of Current System Status of HPC Systems
• Newsletters: CHPC Newsletters, past and present (PDF and HTML)

Most Recent News Items:

Posted: April 30, 2008

Beginning May 1st CHPC will begin the process of retiring the filesystem mounted at /scratch/parallel. As previously announced, we will starting removing the mount of this filesystem on the compute nodes as jobs complete over the next week. Beginning May 1st, DO NOT submit jobs utilizing /scratch/parallel.

On May 9th, 2008 any remaining mounts of /scratch/parallel will be removed from all compute nodes. The filesystem will remain available on the interactive nodes until June 1st.

On June 1st, 2008 the filesystem will be retired. Please move data you wish to keep from the /scratch/parallel filesystem prior to June 1st.

CHPC will be exploring options for parallel filesystems and may deploy something for this purpose in the future.

Posted: April 15, 2008

We have upgraded MPICH2 (for Ethernet) on Arches to version 1.0.7. This is a minor upgrade and as such you should be able to use old executables with the new version. If problem occurs, please, rebuild your program (no changes in Makefiles, etc required). If that does not help, please, let us know.

Posted: April 7, 2008

We had a supervisor card fail in our router for the clusters this morning. We were able to replace the failed hardware and get the router healthy again about 1 p.m. after which we reviewed the health of the nodes. Please let us know if you see any problems by sending email to issues@chpc.utah.edu

Posted: April 7, 2008

All presentations are held in the INSCC Auditorium.

Overview of CHPC

Date: April 10th, 2008
Time: 10:30 a.m.

Introduction to Parallel Computing

Date: April 10th, 2008
Time: 1:00 p.m.

Chemistry Packages at CHPC

Date: April 17th, 2008
Time: 1:00 p.m.

Using Gaussian03 and Gaussview

Date: April 24th, 2008
Time: 1:00 p.m.

For more information please go to CHPC Presentations

Posted: April 7, 2008

Duration: Unknown

Systems Affected/Downtime Timelines: Connectivity of all of the arches clusters and telluride.

We've had a switch go down which affects connectivity to all of the arches clusters and telluride. Our staff are working on the problem. We'll send an update when we know more.

Posted: April 6, 2008

Full power was restored to the INSCC Building about 10:21 a.m. on April 6th after the planned outage. All CHPC services are online or in the process of being verified. Some INSCC departmental services may be off-line until individual administraters are able to finish bringing up various servers.

The INSCC Rm 275 UPS (used during the outage to maintain file server connectivity to the HPC clusters) did not come back off battery at that time. CHPC staff working with electricians were able to determine and remedy the problem. As of 10:56am, the UPS was fully functional.

Campus electricians report that their work with energizing a new substation was successful.

Posted: April 4, 2008

A new scratch space is available for computations on the arches clusters. The space is mounted at /scratch/serial and is 16 TB.

Please note that the initial performance of this new space may not be representative of what you'll see in the future. The first, early users may see exceptionally fast performance, but if many users move data and start running jobs, it may perform exceptionally slowly for a time. The performance should stabilize over the next few weeks.

**Important**: We will discontinue mounting the /scratch/parallel space on the compute nodes beginnning May 1st, 2008 but accesss via the interactive nodes will remain for an additional few weeks. Users should migrate all their data off /scratch/parallel as soon as possible.

Posted: April 1, 2008

Beginning Saturday, April 5th at 11:00 p.m., the power to much of lower campus will be down in order for the electrical shop and contractors to prepare the power grid for a co-generation plant. The estimate for this outage is 24 hours.

The impacts to the INSCC building and INSCC data center (Rm 275):

Desktops and personal space: We recommend tenants of the INSCC building shut down your desktops before you leave for the weekend. We further recommend that any perishables in refrigerators be removed prior to this outage.

System administrators: All equipment in the INSCC data center should be turned off prior to 11 p.m. Saturday. There will be no air conditioning and no power available for servers.

HPC systems: The HPC systems should be able to ride out this outage since they are on another power substation within Research Park . The fileservers and supporting equipment in the SSB data center will be on backup generator power. The two data centers will interconnect via a router on generator power.

Posted: March 20, 2008

You may remember I changed to this new version last downtime but there were issues with the use of /scratch/parallel and I moved back to the D.01 version These issues have been resolved so during this downtime I again made this latest version the standard one.

If for any reason you still want to run the D.01 version you will need to update the g03root environment in your batch script to point to it:

setenv g03root /uufs/arches/sys/pkg/gaussian03/D.01

If you have any questions/problems, please contact Anita.