Daily Bulletin Archive

February 10, 2012

For researchers interested in or planning to apply for any of the upcoming allocation opportunities available for NCAR's forthcoming Yellowstone environment, Dave Hart, NCAR's User Services manager, will host an online Q&A session February 3, 2012, 10am-12pm (Mountain), that will include a brief description of the Yellowstone system, tips for writing successful allocation requests, and an opportunity to ask questions.

To call into the meeting, please use the following:

Audio Dial-In Information:
U.S & Canada: 866.740.1260
Access Code: 4971234

To join the meeting online and see the slides:

The Yellowstone system, a 1.5-Pflops HPC system is scheduled to enter production in late summer 2012, and the deadlines to apply for allocations are fast approaching. This session is an opportunity for potential requesters to ask questions about the system, eligibility requirements and writing allocation requests.

Five different opportunities are now or will soon be accepting requests. Details on all of the following opportunities and deadlines are available at https://www2.cisl.ucar.edu/docs/allocations.

* February 20 -- Climate Simulation Laboratory
* March 5 -- Accelerated Scientific Discovery (University and NCAR)
* March 5 -- NCAR Strategic Capability projects
* March 26 -- University (Large requests)
* March 26 -- Wyoming-NCAR Alliance

February 10, 2012

Consulting Services Group will offer its week-long HPC workshops on February 6, 2012 – February 10, 2012. Topics include UNIX, Fortran, MPI/OpenMP, GPU, NCL/IDL, and others.

Please go to the following link for more details and early registration.

February 6, 2012

Starting Thursday, February 2, Mirage nodes 3 and 4 will no longer be available for interactive use. The nodes will be placed under control of the LSF scheduler, to test and configure data analysis and visualization workflows in preparation for the forthcoming Yellowstone environment at NWSC.

The remaining Mirage nodes (0, 1, 2, and 5) will continue to be available for interactive use. These four interactive nodes all have 128 GB to maximize the memory available to Mirage users. CISL is using the Mirage nodes with smaller memory (64 GB) for LSF testing. Please arrange your workflow accordingly.

Contact the Consulting Services Group via cislhelp@ucar.edu if you have comments or questions about this change, or if you are interested in access to the Mirage batch nodes.

January 30, 2012

The U.S. Global Change Research Program is soliciting proposals for the use of the Climate Simulation Laboratory (CSL) computing facilities, beginning August 1, 2012, and continuing through January 31, 2014. The DEADLINE for submitting proposals is February 20, 2012. If you are currently using the CSL and wish to continue using the facility after June 2012, please submit your renewal proposal and a progress report by the February 20, 2012, deadline.

The multi-agency CSL computing facility was established in 1995 and is dedicated to climate modeling in support of the U.S. Global Change Research Program. The CSL provides high-performance computing and data storage systems to support large-scale, long-running simulations of the Earth’s climate system.

This round of CSL allocations will have access to NCAR’s forthcoming petascale Yellowstone system, a 1.55-PFLOPs IBM iDataPlex cluster, as well as its associated storage, data analysis, and visualization resources. For more information about Yellowstone, see the CISL web site (http://www2.cisl.ucar.edu/). Additional information about use of the CSL and updated submission instructions can be found at the CSL web site, http://www2.cisl.ucar.edu/csl/.

If you have questions about this opportunity, please contact David Hart, User Services Manager, 303-497-1234, or email alloc@ucar.edu.  Please share this information with any other colleagues who might be interested. We look forward to hearing from you.

January 26, 2012

NCAR users attending the American Meteorological Society (AMS) meeting in New Orleans, January 24-25, have several opportunities to learn more about NCAR's forthcoming data-centric Yellowstone environment.

CISL will host a Yellowstone Allocations Briefing on Tuesday (Jan. 24) at 4:30 p.m. at the Hilton New Orleans Riverside in Salon D21/24. During this session, David Hart, CISL's User Services manager, will describe Yellowstone, the various allocations opportunities, and tips for writing successful allocation requests. Light hors d'oeuvres will be served.

In addition, Hart will be at the NCAR booth (#316) to showcase the Yellowstone system and be on hand to answer user questions. Presentations are scheduled for Tuesday (Jan. 24) at 11 a.m. and 3 p.m. and again on Wednesday (Jan. 25) at 10:30 a.m. and 1:30 p.m.

The Yellowstone environment at NWSC will greatly expand the opportunities for researchers in the geosciences and related fields. For more details, see https://www2.cisl.ucar.edu/resources/yellowstone

January 18, 2012

The Texas Advanced Computing Center will present the training session,

Linux/Unix Basics

January 26, 2012 (Thursday)

9 a.m. - Noon (CT)

J.J. Pickle Research Campus

Research Office Complex (ROC 1.603)

10100 Burnet Rd.

Austin, TX 78758

This foundational class provides beginners and intermediate users with basic Linux/Unix command line environment experience. The lecture will emphasize common strategies used for interacting with clusters and HPC resources. No prerequisite.

This class will be webcast.

If you would like to attend the course via webcast and you have an XSEDE User Portal login, please use the link below to register:


If you would like to participate via webcast, and do not have an XSEDE User Portal login, you will have an opportunity to create an account when you attempt to register at the above link.

Please submit any questions you may have via the Consulting section of the XSEDE User Portal. https://portal.xsede.org/help-desk

January 10, 2012

An installation issue was discovered in the previously installed version of netcdf-4.1.3 (only the netcdf-4.1.3_mpi version was affected, the netcdf-4.1.3_seq and netcdf-3 format versions were not affected and were not changed). The issue prevented MPI programs to correctly execute netcdf-4.1.3 distributed code.

We have fixed this issue, deleting and recreating /contrib/netcdf/4.1.3_mpi/

Netcdf-4.1.3_mpi is now linked to hdf5-1.8.6_mpi and not hdf5-1.8.6_seq, fully providing parallel functionalities.

If you had problems running netcdf-4.1.3_mpi previously, please try again.

Please send questions and reports of problems to cislhelp@ucar.edu.

December 16, 2011

/blhome under Bluefire has been available for you to copy any of your files for a little over a month.  We plan to decommission this old home area on Tuesday, December 13. We ask you to copy any of the files from /blhome before it is decommissioned.

December 16, 2011


UPDATE: We're reposting this announcement to highlight a clarification to the ASD eligibility requirements posted online. Eligible projects may span all of the geosciences and supporting computational sciences. 


CISL is pleased to announce the availability of dedicated, large-scale resources on NCAR's recently announced Yellowstone system from approximately May through July 2012 as part of its Accelerated Scientific Discovery (ASD) initiative for university and NCAR research.

NSF-supported university researchers interested in applying for ASD computational resources can view eligibility and proposal requirements at: https://www2.cisl.ucar.edu/docs/allocations/asd. Applications are due January 13, 2012.

NCAR researchers interested in applying for ASD computational resources may view eligibility and proposal requirements at: https://www2.cisl.ucar.edu/docs/allocations/2012nsc/instructions. NCAR ASD projects will be chosen from submissions for NCAR Strategic Capability (NSC) projects, also due on January 13, 2012.

The Yellowstone system will be a 1.6-petaflops IBM iDataPlex cluster with 74,592 Intel Sandy Bridge EP cores, 149.2 TB of memory, and 11 PB of parallel disk storage. Yellowstone is expected to deliver nearly 30 times the capacity of NCAR's current Bluefire system.

View the UCAR press release announcing Yellowstone at:

For more details on Yellowstone, see:

Questions on the Yellowstone system, ASD allocations, and the user transition process may be directed to cislhelp@ucar.edu.

December 15, 2011

In concert with the Unidata Seminar Series, CISL presented a briefing on the Yellowstone system, NCAR's forthcoming data-intensive petascale environment, November 29, 2011.  The briefing discussed the Yellowstone hardware, including the disk resource and data analysis and visualization clusters, the software environment, and the allocations opportunities available to the various user communities.

Listed below is the recorded webcast link for those unable to attend in person.


For more details on Yellowstone, see: