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The Bandwidth Benchmark is a collection of simple streaming kernels. While it may be used for micro-benchmarking its main target area are teaching purposes. It is heavily inspired by John McCalpin's https://www.cs.virginia.edu/stream/ benchmark. It contains eight typical streaming kernels with di...

Category: HPC, Tools

LIKWID 4.3.4 is a bugfix release. These are the relevant changes: For systems using Intel Cluster-on-Die (CoD) or Sub-NUMA Clustering (SNC): Fix for detecting PCI devices Workaround for topology detection. The Linux kernel does not detect it properly sometimes. Don't pin accessDa...

Category: HPC, Tools

LIKWID 4.3.2 has just been released. This is an important maintenance release if you need support for the latest architectures: Support for Intel Knights Mill (core, RAPL, Uncore) AMD Zen: Use RETIRED_INSTRUCTIONS instead of fixed-purpose counter for metric calculation Intel Skylake X: So...

Category: Tools

LIKWID 4.3 is out! You can download it from the Github site. Thanks to initial work by Anja Gerbes we also have a quick reference sheet, which you can tack to your monitor, display as a permanent background image, or put under your pillow for diffusive knowledge transfer... Of course, you may also c...