NCAR Advanced Research Computing

Information, news and other support for our HPC user community.

Derecho weekly update

June 1, 2023

Derecho’s Acceptance Test Phase (ATP) was resumed after CISL and HPE engineers significantly reduced job performance variability through some tuning and configuration changes. Additionally, HPE and CISL have been able to maintain an availability of 98% for the compute resources during this testing phase. While the vast majority of the benchmark results meet or exceed expectations, CISL is worki...

NCAR HPC users invited to June 6 user group meeting

May 31, 2023

All NCAR HPC users are invited to the NCAR HPC User Group (NHUG) monthly meeting from 9 to 10 a.m. MDT on Tuesday, June 6. CISL staff will provide an update regarding availability testing for the Derecho system and will provide an overview of the GLADE-2 transition. The meeting will also touch on user feedback requests for future NHUG meetings. To contribute to the agenda or submit questions fo...

Optimizing I/O Tutorial for Lustre and Derecho File System

May 30, 2023

A virtual tutorial on optimizing I/O in serial and parallel applications will be hosted from 11:30 a.m. to 1:30 p.m. MT June 12-14 by the University of Texas, San Antonio. This three-day tutorial will help NCAR HPC users prepare for the upcoming transition to Derecho’s Lustre parallel file system. Topics will include parallel file systems (Lustre), MPI I/O, and I/O in the context of checkpointi...

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