Dear ARL DSRC Jean User, Jean is now available on the Advance Reservation Service (ARS). Users are now able to create, view, and cancel reservations on Jean. Allocations to Jean is required for ARS usage on the systems. The URL for ARS is https://reservation.hpc.mil/reserve/.

Dear ARL DSRC Ruth User, Per BCT policy, files on the $WORKDIR file system that have not been accessed for 30 days will be removed. To enforce this BCT policy, a scrubber will be implemented on the TI-22 Ruth system on June 1, 2025, so the automated file removal process will begin on July 1, 2025. Users are encouraged to use their scratch space efficiently and economically by proactively removing files and directories from $WORKDIR that are no longer required for current or near-term processing. Users are responsible for saving their files for long-term storage to either archival space ($ARCHIVE_HOME) or home directory space ($HOME).

Dear ARL DSRC User, HPE will be offering a TI-22 Basic Level Training course June 9-12, 2025, from 0830 EDT to 1700 EDT. This training is limited to only 10 students. HPE will be conducting virtual training for this course. To register, requests should be sent to dsrchelp@arl.army.mil. The registration deadline is Friday, May 30, 2025. Course Description: - This course is a Basic Level course for people who work in applications support or development on Cray Programming and Optimization computer systems (Ruth, Marlyn, Snyder). The course will provide a review of the system hardware and software components, instruction and labs using Crays performance analysis tools, and discusses ways to optimize user codes. During this four-day course, the first 2 days will be at a beginner level with the last 2 days being at an intermediate level. Through lectures and practical laboratory exercises, the course provides sufficient instruction to enable inexperienced users to develop and optimize applications as well as enhance an experienced users knowledge and skills. Prerequisites: - All students should have a machine with a web browser (preferably Firefox or Chrome), a terminal emulator (such as Windows Terminal, macOS Terminal.app, etc.) and an SSH client.