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Category: HPC, Tools

The Bandwidth Benchmark is a collection of simple streaming kernels. While it may be used for microbenchmarking, we mainly want to use it in teaching. It is heavily inspired by John McCalpin's STREAM benchmark. It comprises eight typical streaming kernels with different data access patterns for m...

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...