HPC & Quantum
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HPC Guru (Twitter)

Coherent file format eliminates bottlenecks in #OpenFOAM workflows

In a large-scale simulation using more than 500,000 cores on HLRS’s #supercomputer Hawk, scientists successfully tested this new approach

hlrs.de/news/detail/coherent…

#HPC #CFD @HLRS_HPC
HPC Guru (Twitter)

#AWS #HPC blog: @awscloud added a node-aware hierarchical AllGather-based AllReduce method to #OpenMPI that can significantly reduce the AllReduce latency for small messages

#OpenFOAM: 18% improvement for 2048 cores and 35% improvement at 4096 cores

https://aws.amazon.com/blogs/hpc/recent-improvement-to-open-mpi-allreduce-and-the-impact-to-application-performance/