Daily Bulletin Archive

May 18, 2020

The CISL User Services Section will present an online tutorial at 9:30 a.m. MDT on Wednesday, May 27. Participants will learn about using the HPC resources provided by CISL. The 45-minute tutorial, presented by Rory Kelly of the CISL Consulting Services Group, will include time for users to ask questions. Topics will include:

  • Overview of available HPC systems
  • Access and the user environment
  • Data storage
  • Job scheduling with PBS and Slurm 
  • Compiling and running parallel programs
  • Remote visualization
  • Getting further help

Please use this link to register.

May 18, 2020

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

May 13, 2020

Registration is open for a free ACI-REF Virtual Residency Workshop on how to be an effective research computing facilitator. Participants will attend remotely via videoconference from Monday, June 1, to Friday, June 5.

This intermediate/advanced Research Computing Facilitation workshop is intended for those who want to be more effective at helping researchers and educators use research cyberinfrastructure. The only prerequisite is having an interest in helping researchers with their computing-intensive/data-intensive research. Previous attendance at a Virtual Residency workshop is not required. The workshop agenda and registration link are available here

May 12, 2020

XSEDE and the Pittsburgh Supercomputing Center will present an online-only Hybrid Computing workshop June 2-5. Registration is now open for this Summer Boot Camp event.

The workshop will include MPI, OpenMP, and GPU programming using OpenACC and accelerators. It will conclude with a special hybrid exercise contest that will challenge the students to apply their skills over the following three weeks to be awarded the Annual XSEDE Summer Boot Camp Championship Trophy. In addition, an XSEDE Badge will be available to those who complete the challenge.

Registration closes on May 29 or when the class reaches capacity. See this web page for more information and a registration link.

May 11, 2020

None planned for Cheyenne, Casper, HPSS, Glade, or Campaign Store

May 7, 2020

The Cheyenne and Casper login nodes are shared by everyone in the user community, so it’s important to keep in mind their intended purposes.

Cheyenne – You can run short, non-memory-intensive processes on the Cheyenne login nodes. These include tasks such as text editing and running small serial scripts or programs. Memory-intensive processes that slow login node performance for all users are killed automatically and the responsible parties are notified by email.

Casper – The Casper login nodes have one purpose: Logging in to start jobs on the cluster’s compute nodes. Any compute processes found running on the login nodes will be killed.

Learn more about using shared resources and other best practices right here.

May 6, 2020

CISL storage administrators estimate less than 43% of the data remaining on the High Performance Storage System (HPSS) can still be read for migration to other storage spaces before the system is decommissioned on October 1, 2021. The estimate is based on an aggressive but possible data-transfer rate of 2 PB per month.

Given the limited bandwidth and time available, users who have not already done so should begin moving valuable data to alternative storage systems and to delete files that are no longer needed.

Documentation and training are available on 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.

May 4, 2020

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

April 29, 2020

The Trustworthy Data Working Group invites scientific researchers and the cyberinfrastructure (CI) professionals who support them to complete a short survey about scientific data security concerns and practices.

The working group is a collaborative effort of Trusted CI, the four National Science Foundation (NSF) Big Data Innovation Hubs, the NSF CI CoE Pilot, the Ostrom Workshop on Data Management and Information Governance, the NSF Engagement and Performance Operations Center, the Indiana Geological and Water Survey, the Open Storage Network, and other interested community members. The goal of the working group is to understand scientific data security concerns and provide guidance on ensuring the trustworthiness of data.

The purpose of the survey is to:

  • Improve broad understanding of the range of data security concerns and practices for open science
  • Provide input and help shape new guidance for science projects and cyberinfrastructure providers
  • Serve as an opportunity to consider local data security concerns during a voluntary, follow-up interview

Please visit this web page to complete the survey, and share this announcement to help obtain a broad set of responses representing a diversity of perspectives across the scientific community. Multiple individuals from the same organization/project are welcome to take the survey.

Survey results, along with the analysis and applicable guidance, will be published by the Trustworthy Data Working Group as a freely available report by the end of 2020. See this working group web page for updated information about the study.

April 28, 2020

The Cheyenne system's login nodes will be unavailable for about an hour beginning at 8 p.m. MDT on Wednesday to allow CISL staff to perform important system updates. Active login sessions and running processes will be killed when those updates begin. Several services will be unavailable, including SSH access to Cheyenne, JupyterHub, and access to Casper via Cheyenne using the execdav or salloc commands. Users will be able to log into Casper directly.

Also, CISL staff will update system software on Cheyenne's administration nodes at noon MDT on Thursday. This is expected to take less than 15 minutes. Several services will be unavailable during the update period including cron, PBS commands (qsub and qstat, for example), and new Cheyenne JupyterHub sessions. Batch jobs and JupyterHub sessions that are already running will not be affected.