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New Report: PRACE in the EuroHPC Era

The Partnership for Advanced Computing in Europe has published a new report: PRACE in the EuroHPC Era. PRACE is an international non-profit association with its seat in Brussels. “The EuroHPC Joint Undertaking will advance the European supercomputer landscape by completing the infrastructure pyramid at the top level with European leadership-class supercomputers. In a context of a strong international competition with USA, China and Japan, this development is highly expected by all stakeholders of HPC in Europe. For the European HPC users from science and industry, i.e. industrials and SMEs, the seamless integration of these new top-level systems and services into the existing European HPC-ecosystem is an issue of paramount importance.”

An Update on Piz Daint – the Fastest Supercomputer in Europe

In this video from SC18 in Dallas, Michele De Lorenzi from CSCS in Switzerland provides an update on Piz Daint, the fastest supercomputer in Europe. “Recently upgraded with two additional cabinets full of NVIDIA V100 GPUs, the Cray XC50 system comes in at #5 in the world with 21.23 Petaflops of performance on the LINPACK benchmark.”

Video: Reflecting on the Goal and Baseline of Exascale Computing

Thomas Schulthess from CSCS gave this talk at the Blue Waters Summit. “Application performance is given much emphasis in discussions of exascale computing. A 50-fold increase in sustained performance over today’s applications running on multi-petaflops supercomputing platforms should be the expected target for exascale systems deployed early next decade. We will reflect on what this means in practice and how much these exascale systems will advance the state of the art.”

Video: CSCS Update for 2018

In this video from PASC18, Thomas Schulthess provides an update on CSCS. “CSCS develops and operates cutting-edge high-performance computing systems as an essential service facility for Swiss researchers. These computing systems are used by scientists for a diverse range of purposes – from high-resolution simulations to the analysis of complex data.”

Video: Introduction to OpenACC

Vasileios Karakasis from CSCS gave this talk at the the Directive Based GPU Programming Workshop. “Directives-based programming facilitates the task of parallelizing your application by letting you focus on its parallel logic rather than on the very details and the low-level intricacies of the GPU architecture. In this course, we will introduce the OpenACC programming paradigms for the GPU. We will cover the parallel execution model and how it can be used to leverage parallelism, the memory model and how this differs from the classic CPU paradigm.”

CSCS Takes on Big Data from the Paul Scherrer Institute

Today CSCS in Lugano announced plans to archive research data collected by the large-scale research facilities at the Paul Scherrer Institute (PSI) in Villigen. The collaboration between PSI and CSCS enabled major improvements to the data transfer and storage process. “Storing and archiving data is part of everyday life at CSCS. However, transferring huge amounts of data — including ongoing research projects online across Switzerland as well as an entire data archive containing decades of major completed projects — via fibre-optic cable presents a logistical challenge.”

Supercomputing how Fish Save Energy Swimming in Schools

Over at CSCS, Simone Ulmer writes that researchers at ETH Zurich have clarified the previously unresolved question of whether fish save energy by swimming together in schools. They achieved this by simulating the complex physics on the supercomputer ‘Piz Daint’ and combining detailed flow simulations with a reinforcement learning algorithm for the first time. “In their simulations, they have not examined every aspect involved in the efficient swimming behavior of fish. However, it is clear that the developed algorithms and physics learned can be transferred into autonomously swimming or flying robots.”

Leadership Computing for Europe and the Path to Exascale Computing

Thomas Schulthess from CSCS gave this talk at the GPU Technology Conference. “With over 5000 GPU-accelerated nodes, Piz Daint has been Europes leading supercomputing systems since 2013, and is currently one of the most performant and energy efficient supercomputers on the planet. It has been designed to optimize throughput of multiple applications, covering all aspects of the workflow, including data analysis and visualisation. We will discuss ongoing efforts to further integrate these extreme-scale compute and data services with infrastructure services of the cloud. As Tier-0 systems of PRACE, Piz Daint is accessible to all scientists in Europe and worldwide. It provides a baseline for future development of exascale computing.”

ReFrame: A Regression Testing Framework Enabling Continuous Integration of Large HPC Systems

“Scientifico ReFrame is a new framework for writing regression tests for HPC systems. The goal of the framework is to abstract away the complexity of the interactions with the system, separating the logic of a regression test from the low-level details, which pertain to the system configuration and setup. This allows users to write easily portable regression tests, focusing only on the functionality. The purpose of the tutorial will be to do a live demo of ReFrame and a hands-on session demonstrating how to configure it and how to use it.”

Scratch to Supercomputers: Bottoms-up Build of Large-scale Computational Lensing Software

Gilles Fourestey from EPFL gave this talk at the Swiss HPC Conference. “LENSTOOL is a gravitational lensing software that models mass distribution of galaxies and clusters. It is used to obtain sub-percent precision measurements of the total mass in galaxy clusters and constrain the dark matter self-interaction cross-section, a crucial ingredient to understanding its nature.”