Success Story: In situ VR visualisation of Nek5000 simulations with Vistle
Nek5000 cases that use Exascale level performance compute data on very large grids. Writing this data to disk frequently becomes a major run time bottleneck, while handling all the data on disk comes with its own challenges. With increasing data sizes and complexity analysing the usually 3D data with conventional 2D methods becomes even harder. Running large simulations is also costly, therefore errors should better be identified rather sooner than later.
Data management workflow for HPC – SSC Data Management Workflow Portal
Organisations and smaller industry partners today face various problems in dealing with high performance computing (HPC) computations, HPC in general, or even access to HPC resources. Hence, the EXCELLERAT Data Management Service develops best practices and provides support for managing the large amounts of data generated and used in technical HPC applications.
Success Story: Running AVBP Industrial code on Arm architectures
With the diversification of the micro-processor catalogue for High-Performance systems, porting and evaluating software performance on Arm-based architectures has become an imperative step for code developers. For core performance to multi-node scalability, real application benchmarks remain elusive. Given the myriad of Arm flavours available, a comprehensive real case benchmark would give developers and users a first look for the future usage of the European Processor Initiative (EPI) and Arm-based leadership class systems.
In collaboration with Arm Ltd., CERFACS has performed a first benchmark using the AVBP code, a state-of-the-art Navier Stokes solver on unstructured grids for reactive compressible flows written in Fortran and based on MPI for parallelism.
Success Story: Transparent Integration of Emerging HPC Technologies into the Computational Fluid Dynamics Software CODA
Success Story: Transparent Integration of Emerging HPC Technologies into the Computational Fluid Dynamics Software CODA Success story # Highlights: Keywords: Computational Fluid Dynamics Aerospace High Performance Computing GPU linear equation systems aircraft aerodynamics Industry sector: Aerospace Key codes used: CODA, Spliss Title: Simulation of external aircraft aerodynamics. Credit and copyright: DLR (CC BY-NC-ND 3.0) Organisations […]
On the technical debt of high-performance scientific software
High-performance scientific software must overcome two specific challenges: scientific validation, and performance on bleeding-edge and short-lived hardware. Success in each requires time, expertise, and cumulative experience over many failed attempts. Thus, engineering software developers are mostly experts in physical modelling or in high-performance computing (HPC) and rarely experts in the management of technical debt.
Success Stories: Accelerating Alya engineering simulations by using FPGAs
Accelerating Alya engineering simulations by using FPGAs Success story # Highlights: Keywords: FPGA Exascale engineering simulations incompressible flow GPUs Industry sector: Automotive, Aerospace, Manufacturing, Energy Key codes used: Alya Performance comparison between CPU, GPU, three kernels on the FPGA (with cartesian derivatives calculation on CPU) and two kernels on the FPGA (all calculations on the […]
Success Story: A novel framework for online estimation of the uncertainties in turbulent flow statistics
Success Story: A novel framework for online estimation of the uncertainties in turbulent flow statistics Success story # Highlights: Keywords: Turbulence simulation Time-averaging uncertainty In-situ algorithms Industry sector: Aerospace, Automotive, Energy Key codes used: Nek5000, UQit, In-Situ Toolbox Turbulent flow around the NACA4412 Wing; Instantaneous flow field (iso-surfaces of the Q-criterion) Organisations & Codes Involved: […]
Key points and take-outs from the FORTRAN webinar organised by EXCELLERAT
The EXCELLERAT Centre of Excellence held a Webinar with Wadud Miah on the topic “Fortran for High Performance Computing” on the 4th of May 2021. Following this event, CERFACS created a COOP blog article with the objective to further share the answers to the questions discussed during the webinar with the HPC ecosystem.
EXCELLERAT’s Fourth All-Hands Meeting
From 30 November to 1 December 2021, our project meeting was once again hosted as a digital event due to the continuing pandemic situation. About 30 partner representatives per day presented the EXCELLERAT project tasks’ good progress, some minor 2021 challenges, and the requirements for the project’s extension and great final results.
Success Story: Enabling sustainable GPU acceleration on a Fortran legacy code.
Success Story: Enabling sustainable GPU acceleration on a Fortran legacy code Success story # Highlights: Keywords: CFD combustion simulation parallel performance GPU computing OpenACC Industry sector: Aerospace, Automotive Key codes used: AVBP Traces without DLB (original) and with DLB of the Bunsen flame use case Organisations & Codes Involved: CERFACS is a theoretical and applied […]