The Daily Bulletin

The May 31-June 2 Fortran workshop filled up quickly, so the CISL Consulting Services Group is offering a four-day workshop starting Tuesday, July 12.

The July workshop will cover the same content: Modern Fortran declarations and action statements. Vector programming, object-oriented programming, and parallel programming will be emphasized. Interoperability between Fortran and C also will be discussed.

The workshop is scheduled for 9 a.m. to noon and 1 to 4 p.m. July 12-15 at the NCAR Mesa Lab (ML4) in Boulder. The class will not be recorded or webcast. Space is limited, so please make sure you will be able to attend before you register using this form

NCAR personnel who have Subversion (svn) repositories on the Yellowstone system can follow these recently published procedures to migrate them to Git repositories on GitHub. Others may also find the information helpful when migrating their svn repositories. Subversion services that CISL hosts will be shut down at the end of September. This affects only subversion.ucar.edu repositories.

In addition to the migration procedures, the CISL User Services Section also provides a three-part training course to familiarize Subversion users and others with Git. Video and slides for “Using Git for Centralized and Distributed Version Control Workflows” are available here.

The CISL documentation for using HSI to archive and manage files in HPSS has been updated to clarify procedures for using the HSI cput command.

Using cput -R when archiving a local directory to HPSS preserves that directory structure, which otherwise is not mirrored by default. See cput and the -R option for details. (To retrieve a directory and its contents into your local working directory, use cget -R and the source directory name.)

If you need to archive large numbers of files, use HTAR instead of HSI or contact cislhelp@ucar.edu for assistance.

HPSS activity has increased recently and some users are reporting slower file retrieval as a result. Configuring your file requests based on tape location can help in some cases. See Optimizing HPSS file retrieval for how to do that.

Reading files from HPSS is quicker if they are on a single tape. Especially if you need to store large numbers of individual files, it’s important to use HTAR when you transfer them to HPSS. HTAR groups them into a single archive file that can be stored on a single tape. See Using HTAR to transfer files for details. 

Users can also contact cislhelp@ucar.edu for assistance.