Author: Georg Hager

Today (November 26) at around 4:30 p.m., a short glitch on the city power lines led to most HPC systems going down: Fritz, Alex, Woody, Meggie, TinyGPU, TinyFat, the test cluster, and parts of Helma. Frontends are still up, but most jobs were killed. Admins are working to get the systems up and runn...

On October 13, 2025, the Leibniz Supercomputing Center (LRZ) hosts a landmark event, the "Symposium: 25 years of HPC in Bavaria," marking a major milestone in high-performance computing history for the region. The symposium  brings together leaders from government, academia, and industry in a hy...

Each year, the Student Cluster Competition (SCC) invites student teams from all over the world to compete in several tough challenges, all related to high performance computing and computing center operation. The competition takes place during the largest conference for high performance computin...

From June 10 to 13, the ISC High Performance conference celebrated its 40th anniversary. The world of HPC met in Hamburg to congratulate—and to advance and promote knowledge exchange, innovation, and collaboration in the field of high-performance computing. ISC's slogan this year was "Connecting the...

The 65th Top500 list was released today at the ISC High Performance 2025 Conference in Hamburg, Germany. The list ranks the 500 fastest supercomputers in the world using the "High Performance LINPACK" benchmark. Helma, NHR@FAU's GPU supercomputer, was recently expanded with another 96 nodes for a...

Since about 6:00 p.m. today, the parallel filesystem ($FASTTMP) is partially down. Jobs on Fritz, Alex, and Helma may be affected. We are working on solving the issue and apologize for the incovenience. Update : Lustre is fully available again.  

The Fritz and Helma clusters are down today (May 14) because of urgent maintenance of the water cooling system. We apologize for the inconvenience and will keep you updated about the status. Update About half of the Fritz cluster nodes are up and running again. Update The Fritz and Helma clu...

Speaker: Johannes Partzsch, TU Dresden Date and time: Tuesday, April 15, 2025, 2:00 p.m. CEST Zoom: https://go-nhr.de/perflab-seminar Slides https://youtu.be/8UvnDcL212c Abstract Neuromorphic computing has received interest recently for its potential to counteract the ever-increasing...

Open Source Architecture Code Analyzer (OSACA) is now "Intel-ready" The Open Source Architecture Code Analyzer (OSACA) is a tool that can analyze assembly code and produce a best-case runtime prediction assuming that the data is in the L1 cache. Its analysis is based on throughput and latency of ...

Since 20:10 on January 30, the parallel Lustre file system ($FASTTMP) on the Fritz cluster is unavailable due to repeated server crashes. The issue is being investigated. Update 2025-01-31 17:00: The issue turned out to be a faulty component in the Infiniband network of Fritz, the Lustre servers ...