Daily Bulletin Archive

May. 5, 2017

GLADE project space user quotas were reset at noon MDT on Friday, April 28, to prevent the /glade/p space from hitting the 95% full mark again as it did earlier that week. Some data can be lost if the file system reaches 95% full and a downtime and remount of the file system become necessary.

To help ensure the file system’s stability and continued availability, users’ project space quotas were set to a level that accommodates their file holdings as of the morning of Wednesday, April 26. The new quotas will remain in effect until early June when /glade/p is expanded with the old GLADE scratch disk.

Jobs that direct output to project space that is at capacity will fail. Project space users are advised to immediately review their workflows so that job output is written to the recently expanded /glade/scratch file space rather than /glade/p. CISL also again advises users to delete files from project space that are no longer needed. For files that need to be retained but are not required for current processing, please work with your Lab System Administrator(s) and Data Manager(s) to sort out a viable long-term archival plan.

Project space is not intended for use as a long-term data repository. Users who need to remove thousands or hundreds of thousands of files from a GLADE directory should review Removing large numbers of files for how to do that most efficiently.

Apr. 27, 2017

GLADE project space user quotas will be reset at noon MDT on Friday, April 28, to prevent the /glade/p space from hitting the 95% full mark again as it did earlier this week. If the file system reaches 95% full and a downtime and remount of the file system become necessary, some data may be lost.

To help ensure the file system’s stability and continued availability, users’ project space quotas will be set to  a level that accommodates their file holdings as of the morning of Wednesday, April 26. Jobs that run after the new quotas are established will fail if output is directed to project space that is at capacity.

Project space users are advised to immediately review their workflows so that job output is written to the recently expanded /glade/scratch file space rather than /glade/p. CISL also again advises users to delete files from project space that are no longer needed. The new quotas will remain in effect until early June when /glade/p is expanded with the old GLADE scratch disk.

Project space is not intended for use as a long-term data repository. Users who need to remove thousands or hundreds of thousands of files from a GLADE directory should review Removing large numbers of files for how to do that most efficiently.

Apr. 27, 2017

An important deadline is coming Monday, May 1, for anyone interested in submitting poster abstracts, Visualization Showcase proposals or Birds-of-a-Feather proposals for PEARC 17—the Practice and Experience in Advanced Research Computing conference in New Orleans, July 9-13, 2017.

Submissions should emphasize experiences and lessons derived from operation and use of advanced research computing on campuses or provided for the academic and open science communities. Submissions that align with the conference theme—Sustainability, Success, and Impact—are particularly encouraged. See the Call for Participation for more information.

Students whose posters are accepted are eligible to apply for financial support to cover the costs of airfare, shared lodging, and registration fees.

Apr. 25, 2017

A workshop geared toward new NCL users is scheduled for June 6-9 at the Corporate Technical Training Center on the Center Green Campus (CG-2) in Boulder. The workshop will include a combination of introductory lectures on NCL and scientific data formats, with hands-on labs in the afternoon. Instructors will work with students during the labs to help them write NCL programs for analyzing their own data.

Registration is limited and the summer workshop tends to fill up quickly, so register as soon as possible. The registration deadline is May 19.

Travel support is available on a first-come, first-served basis for qualified students from EPSCoR states or minority-serving institutions. The deadline for applying for funds is April 28.

See this page for full details and a link to the registration form.

Apr. 24, 2017

HPSS Downtime Tuesday, April 25 from 7:00 am - 9:00 am

No Downtime: Yellowstone, Geyser_Caldera, GLADE

Apr. 19, 2017

Users’ /glade/scratch file spaces for the Yellowstone, Geyser, and Caldera clusters have been integrated with the new, larger GLADE scratch system. In this second phase of the GLADE transition, the old scratch space remains available in read-only mode as /glade/scratch_old until June 1. Yellowstone users who have not already done so should copy any scratch files that they want to keep from /glade/scratch_old to /glade/scratch.

As announced previously, /glade/scratch_old will be removed from all systems on June 1. The disk space will be repurposed for use as project space. Please see GLADE File Spaces for more information.

Apr. 18, 2017

Allinea staff and CISL Consulting Services Group (CSG) personnel will host a hands-on workshop Tuesday, April 18, on using Allinea tools for debugging code and optimizing code performance.

The 1:30-5 p.m. session, in the VisLab (ML4) at NCAR’s Mesa Lab in Boulder, is for experienced users as well as others who are new to Allinea tools and would like help with current debugging, profiling, or code performance needs. Those interested are encouraged to attend in person.

The first 90 minutes will be a tutorial that remote participants can attend by webcast, which will not be recorded. The rest of the afternoon will be dedicated to hands-on help for on-site participants with debugging or performance optimization. Participants who would like input on performance issues are encouraged to generate .map files and Performance Reports output in advance. Documentation is provided here for Yellowstone users.

See a detailed agenda here.

Use this link to register for the workshop.

Apr. 18, 2017

CISL has implemented the Jupyter package on both the Cheyenne and Yellowstone systems, so IPython Notebook users can now work with its Jupyter Notebook replacement. User documentation also has been updated to describe how to start the IPython shell, Jupyter QtConsole and Jupyter Notebook on the CISL supercomputing systems. The IPython modules that were on Yellowstone have been removed; they contained a security flaw that is fixed in the Jupyter package.

Users can find links to the documentation on both the Cheyenne and Yellowstone menus.

Apr. 17, 2017

No Scheduled Downtime: Yellowstone, Cheyenne, Geyser_Caldera, HPSS, GLADE

Apr. 15, 2017

A semi-annual Mesa Lab building maintenance power-down scheduled for Saturday, April 15, should have little impact on university users of CISL’s high-end resources. Some Boulder-based UCAR/NCAR staff will be unable to log in to the Cheyenne or  Yellowstone systems or other services with their authentication tokens, but sessions that start before the power-down will not be affected.

The power-down should otherwise not affect the Cheyenne, Yellowstone, Geyser, and Caldera clusters, the GLADE system, or HPSS, which will remain in service at the NCAR-Wyoming Supercomputing Center (NWSC) in Cheyenne. The maintenance work is scheduled to begin at 6 a.m. and conclude by 6 p.m.

Some HPC support services and the HPSS disaster recovery resources that are housed at the Mesa Lab will be unavailable during the power-down. The affected services include the license servers  for Mathematica and the PGI compilers, the CISL web site, the help desk ticketing system, and SAM accounting system. The license server supporting MATLAB users on Yellowstone will not be affected.

Users who have urgent help requests during this time should call 303-497-2400 or 307-996-4300 to reach the NWSC operations center.

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