Tools

It is our pleasure to announce the 38th VI-HPS Tuning Workshop, organized by NHR@FAU. FAU is a member of VI-HPS, the "Virtual Institute - High Productivity Supercomputing." The mission of VI-HPS is to to improve the quality and accelerate the development process of complex simulation programs in sci...

The HPC-focused Julia programming language community grows day by day. Julia is developed by the Julia Lab at MIT's Computer Science and Artificial Intelligence Laboratory (CSAIL). Valentin Churavy, graduate student at MIT, created an interface to the LIKWID tool suite and library, developed by the ...

We are happy to announce a new major release 5.1.0 of LIKWID adding support for the latest and upcoming architectures.

We are happy to announce a new bugfix release 5.0.2 of LIKWID. If you want to use LIKWID on AMD Zen/Zen2 systems, we highly recommend you updating your installation.

MachineState is a python3 module and CLI application for documenting and comparing settings known to affect application performance: e.g., CPU/Uncore frequencies, hardware prefetchers, memory capacity, but also OS and software settings like NUMA balancing, writeback workqueues, scheduling, or the ve...

Our paper "Automatic Throughput and Critical Path Analysis of x86 and ARM Assembly Kernels" has just won the "Best Late-Breaking Paper Award" at the 10th Workshop on Performance Modeling, Benchmarking and Simulation of High Performance Computer Systems (PMBS19), a renowned workshop co-located with t...

We are happy to announce the release of a new version of LIKWID. Until now, LIKWID mainly focused on x86 processors. The new version 5 adds support for ARM and POWER processors as well as Nvidia GPUs.

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...

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...

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...