Nek5000 in EXCELLERAT: towards Exascale One of EXCELLERAT’s tasks is improving Nek5000’s Exascale readiness, particularly with respect to accelerators. As a starting point, we used an OpenACC version of the proxy-app Nekbone and focused on further optimising the small matrix-matrix kernels which constitutes most of the work in the full Nek5000. By tuning the OpenACC directives, the performance of these kernels could be improved with almost a factor of two, however this was still far from the measured roofline of these kernels. This led to the development of a hybrid OpenACC + CUDA version of Nekbone, where the main part
New EXCELLERAT Service Portal is launched We are pleased to announce the launch of EXCELLERAT’s redesigned Service Portal. By presenting a wide variety of resources in an easily-accessible format, the Portal will play an essential role in EXCELLERAT’s mission to create a Centre of Excellence in Engineering. We have adopted a user-centric approach, and the Portal therefore offers separate dashboards tailored towards engineers, software developers, and the general engineering community. Each dashboard quickly directs users to relevant content, and delivers tailored information accordingly. Each page provides a quick route to any related content and offers an easy way to request
Dynamic Load balancing for Airplane simulations on Heterogeneous pre-Exascale architectures We can affirm with quite a certainty that future Exascale systems will be heterogeneous, including accelerators such as GPUs. We can also expect higher variability on the performance of the various computing devices engaged in a simulation; due to the explosion of the parallelism, or other technical aspects such as the hardware-enforced mechanisms to preserve the thermal design limits. In this context, dynamic load balancing (DLB) becomes a must for the parallel efficiency of any simulation code. In the first year of the EXCELLERAT project, Alya has been provisioned with
EPCC develops new modelling techniques for the chemical and oil and gas industry Global equipment manufacturers in the chemical and oil and gas industry, such as Sulzer Chemtech, often rely on commercial Computational Fluid Dynamics (CFD) software tools for the design of their equipment. These commercial codes are currently unable to handle complex twophase flows which exhibit challenging interfaces between gas and liquids such as travelling waves. The formation of interfacial waves, their frequency and amplitude are particularly difficult to model in industrial environments. Dr Prashant Valluri of the University of Edinburgh and his team accelerate the impact of world
New supercomputing record set by ANSYS, HLRS and Cray ANSYS, the High Performance Computing Center (HLRS) of the University of Stuttgart and Cray Inc. have set a new supercomputing world record enabling organizations to create complete virtual prototypes of products faster than ever. ANSYS Fluent has been scaled to 172,032 computer cores on the HLRS supercomputer Hazel Hen, a Cray XC40 system, running at 82 percent efficiency. This is nearly a 5x increase over the record set two years ago when Fluent was scaled to 36,000 cores. By leveraging high performance computing (HPC), companies can rapidly iterate their products.
Scania cooperates with PDC to further improve its vehicles Scania, “a very large and well-known Swedish automotive company“ establishes a partnership with PDC Center for High Performance Computing at the KTH Royal Institute of Technology to further improve the efficiency and performance of its vehicles using state of the art simulation and testing techniques. Simulation and testing are critical components of the product development process at Scania. Before the use of high performance computing technologies, developing new vehicle components and designs was a time-consuming and costly process as prototypes of new ideas had to be built and then tested to
CERFACS and CNRS perform first-ever Large Eddy Simulation of combustion instabilities in a rocket engine – 2017/05/09
CERFACS and CNRS perform first-ever Large Eddy Simulation of combustion instabilities in a rocket engine In a collaborative work with CERFACS, Institut de Mécanique des Fluides de Toulouse, Centralesupelec, ONERA, DLR and TU Munchen, researchers have been able to use the CERFACS LES code AVBP to simulate the instabilities which appear in certain rocket engines under extreme conditions. The simulation was performed thanks to a PRACE allocation of 80 M hours. The massively parallel capacities offered by AVBP have allowed the code to run on 65 536 processors in production mode (the code itself scales up to 200 000 cores) on the
A French SME boosts its offshore engineering service portfolio thanks to European HPC initiatives – 2017/05/10
A French SME boosts its offshore engineering service portfolio thanks to European HPC initiatives The French SME, PRINCIPIA, located in southern France, manages to add to its portfolio an innovative service that helps improve the control of the dynamical behaviour of offshore structures while strongly reducing computing time. The La Ciotat-based company, which specializes in applied engineering for the offshore sector (oil and gas and renewable marine energy) and is the main developer of reference software in this field, has successfully adapted one of its simulation codes, DEEPLINES, to run on a high performance computing (HPC) system. Surface / bottom
BSC and NVIDIA a step forward to the interactive simulation of humans Due to the travel restrictions linked to the corona virus, we have successfully organised our first EXCELLERAT virtual All Hands Meeting with more than 40 participants. Instead of hosting it in Stockholm from 5th until 7th May, this was our team’s largest online conference so far. During this All Hands Meeting, the current status of all work packages were presented and our codes’ use cases were discussed. Moreover, we exchanged knowledge and experience on behalf of our working groups, and prepared our upcoming project review. To sum
HPC helps to make combustion plants safe and cost-efficient There’s no getting around High Performance Computing (HPC) for RECOM Services, a Stuttgart-based small and medium-sized enterprise (SME) for computational process optimization and problem analysis in industrial combustion. Their specifically developed 3D-simulationssoftware RECOM-AIOLOS is able to illustrate combustion processes in virtual reality without disturbing the ongoing operation. Naturally, both engineering and HPC know-how is needed in order to succeed. ©RECOM Natural Gas-Combustion Six codes to define success of EXCELLERAT In order to ensure that the processes visualized in virtual reality correspond to the real world, selected operating conditions are both simulated and measured.