Daily Bulletin Archive

December 16, 2019

No scheduled downtime: Cheyenne, Casper, Campaign Storage, GLADE, HPSS

December 13, 2019

Graduate students and postdocs from institutions in the United States, Canada, Europe, and Japan are invited to apply for the 11th International HPC Summer School, to be held July 12-17, 2020, in Toronto, Canada. Applications are due January 27 for the expense-paid program, which will benefit scholars who use advanced computing in their research.

The summer school will familiarize students in computational sciences with state-of-the-art aspects of HPC and Big Data Analytics for a variety of scientific disciplines, catalyze the formation of networks, provide advanced mentoring, facilitate international exchange, and open up further career options.

Go to the 11th International HPC Summer School site for details.

Hosted by the SciNet HPC Consortium, the summer school is sponsored by the Partnership for Advanced Computing in Europe (PRACE), the Extreme Science and Engineering Discovery Environment (XSEDE), the RIKEN Center for Computational Science (R-CCS), and the SciNet HPC Consortium.

December 12, 2019

Researchers who need help visualizing data to demonstrate the results of their scientific computing can request expert assistance and collaboration from CISL. This service is available to researchers who want help using specialized applications on data analysis and visualization resources that CISL manages.

CISL visualization staff have particular expertise in CISL-developed software such as VAPOR and NCL but are open to assisting with other applications. They have helped science teams produce numerous visualizations for conferences, publications, and scientific journals as well as science and broadcast news programs.

See Advanced visualization support to learn how to submit a request, what criteria must be met, and other details.

Hurricane Odile simulation
Hurricane Odile simulation, CISL Visualization Gallery


December 9, 2019

Users looking to make strides in migrating their HPSS data holdings are encouraged to take advantage of an expected reduction in tape activity in the days surrounding Christmas and New Years. CISL storage engineers noticed a significant drop in HPSS demands during the Thanksgiving holiday break and expect a similar reduction late this month and in early January.

HPSS will be decommissioned on Oct 1, 2021, and the tape archives have limited bandwidth. Users who wait too long to migrate their HPSS data holdings to other spaces such as Campaign Storage may run out of time to migrate all of their data and it will be lost when the system is shut down.

Recently published documentation and this recent tutorial describe recommended processes for identifying and organizing HPSS holdings, copying files that need to be preserved to another storage resource, and deleting files that are no longer needed.

Please contact CISL for advice on individual workflows and storage options.

December 9, 2019

No scheduled downtime: Cheyenne, Casper, Campaign Storage, GLADE, HPSS

December 6, 2019

Video and slides from the December 4 tutorial “Migrating Files from HPSS” are now available here in the CISL training library. The 40-minute presentation by Brian Vanderwende of the CISL Consulting Services Group provides guidance and best practices for moving files from HPSS to alternative storage facilities.

Topics covered include:

  • Obtaining information about HPSS data holdings

  • Moving files to external storage platforms using Globus and Linux utilities

  • Moving files to Campaign Storage via the data-access nodes

HPSS will become read-only on January 20, 2020, and be decommissioned in 2021. Users are advised to begin evacuating their holdings from HPSS immediately.

See related documentation: Migrating Files from HPSS.

December 4, 2019

Anyone who uses NCAR/CISL high-performance computing, data analysis, and storage systems is welcome and encouraged to let us know how we’re doing, suggest improvements, and provide other feedback.

Our recently introduced NCAR Research Computing support portal even includes a dedicated “Feedback” form to make it easy for you to share your thoughts and suggestions. In addition, when we resolve an issue or fulfill a request that you submit through the portal, you’ll get a follow-up email asking you to rate our service on a scale from “Very poor” (we hope not!) to “Very good” (our goal).

Be sure to take advantage of these opportunities to let us know how well we’re meeting your needs.

December 3, 2019

The CISL Help Desk and Consulting Office will be closed today 12/4/2019 3:00 pm - 5:00 pm for a CISL function. For assistance with any urgent issues, call 303-497-2400 or email cislhelp@ucar.edu both of which are always monitored.

December 2, 2019

Users are reminded that the High Performance Storage System (HPSS) tape archive will become read-only on January 20, 2020, with exceptions only for curated collections such as the Research Data Archive. This follows the announcement in October that HPSS will reach its end of life and be decommissioned in 2021.

While writing HPSS files will not be possible as of January 20, users will still be able to perform most common meta-data operations on their HPSS holdings, including deleting, renaming, and moving files. Those who have not already done so should begin deleting files that are no longer needed and moving other data to alternative storage systems as soon as possible.

Recently published documentation – Migrating files from HPSS – describes recommended processes for identifying and organizing HPSS holdings, copying files that need to be preserved to another storage resource, and deleting files that are no longer needed. Additional CISL Daily Bulletin announcements will follow as new tools, training, and expanded documentation become available to support the data migration. In the meantime, please contact CISL for advice on individual workflows, accessing data movers, and storage options.

December 2, 2019

Registration is now open for an NCAR/CISL series of five one-day Fortran workshops beginning Tuesday, January 7. Dan Nagle, CISL Consulting Services Group software engineer and a member of the U.S. Fortran Standards Technical Committee, will provide the training at the Center Green Campus (CG1-3131) in Boulder.

Participants are encouraged to bring their own laptop computers with recent releases of gfortran, mpich, and opencoarrays. Each workshop will begin at 9 a.m. and end at 4 p.m. with an hour break at noon.

  • Scalar Fortran - Tuesday, Jan. 7: Scope and definition of names, how a Fortran program interacts with the o/s, intrinsic types, inquiry procedures.

  • Vector Fortran - Tuesday, Jan. 14: Arrays and array operations, rank of an array, inquiry procedures, array intrinsics.

  • Object-Oriented Fortran - Tuesday, Jan. 21: Derived types, operators, assignments, polymorphism.

  • Parallel Fortran - Tuesday, Jan. 28: Coarrays, solutions to several problems explained in detail.

  • Interoperability with C and handling Floating Point Data - Tuesday, Feb. 4: How to write and call libraries written in C  from Fortran; IEEE 754 floating point: rounding modes and exceptions.

Use this form to register to attend one or more workshops. The workshops will not be webcast or recorded.