Automated workflow for the Hi-fidelity simulation of propulsion devices: application to after burners
The decarbonation and depollution efforts of Safran Group are pushing the innovation of new burner technologies forward. However, the volume of after-burner flames and the unpredictability of newer fuels such as hydrogen flames are challenging the meshing practices born of more classical, no longer computationally affordable configurations.
Learn more about how this challenge could be solved in our success story.
Advanced scalable workflow of ray tracing kernel for radiative heat loads assessment
In the engineering design and digital twin of the first wall of a tokamak fusion reactor, one of the challenges is to address the physical phenomena with sufficient complexity to arrive at a digital solution that is comparable to an actual experiment. This complexity comes at the cost of time and memory heavy computation. It is thus important to optimise the CPU/GPU solver for the codes being used and to demonstrate their capability to run them at exa-scale level. EXCELLERAT provides access to HPC infrastructure and expertise to achieve this goal.
High-fidelity simulation using Adaptive Mesh Refinement with Spectral Element Method solver
High-fidelity modelling of turbulent flows with high Reynolds numbers is challenging due to the wide range of the flow features that have to be resolved. This makes running simulations computationally expensive and poses a meshing problem, as the flow dynamics may not be a priori known. Learn how this challenge could be solved in EXCELLERAT P2.
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.
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 […]
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: […]
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 […]
Success Story: A POP proof-of-concept allows a Bunsen flame use case from EXCELLERAT to run two times faster
Success Story: A POP proof-of-concept allows a Bunsen flame use case from EXCELLERAT to run two times faster Success story # Highlights: Keywords: Performance optimisation Assessment PoC MPI DLB Load imbalance Industry sector: Engineering Key codes used: Alya Traces without DLB (original) and with DLB of the Bunsen flame use case Organisations & Codes Involved: […]
