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Verified Exascale Computing for Multiscale Applications

The purpose of the VECMA project is to enable a diverse set of multiscale, multiphysics applications to run on current multi-petascale computers and emerging exascale environments with high fidelity such that their output is “actionable”. That is, the calculations and simulations are certifiable as validated (V), verified (V) and equipped with uncertainty quantification (UQ) by tight error bars such that they may be relied upon for making important decisions in all the domains of concern. The central deliverable is an open source toolkit for multiscale VVUQ based on generic multiscale VV and UQ primitives, to be released in stages over the lifetime of this project, fully tested and evaluated in emerging exascale environments, actively promoted over the lifetime of this project, and made widely available in European HPC centres.

VECMA in a Nutshell

Computer simulations are being used to predict the weather and climate change, model refugees, understand materials, develop nuclear fusion, and inform medical decisions. But if we are to use simulations in order to makes predictions on the global climate emergency, guide aid to migrants fleeing combat, create new materials, help invent the first fusion reactor, and allow doctors to test medication on a virtual you (before the real you), then those simulations need to be reliable. In other words, they need to be validated, verified, and their uncertainty quantified, so that they can feed into real life applications and decisions. The VECMA project is developing software tools in order to validate, verify, and quantify the uncertainty on each of these simulation applications, and many besides.

Take a look at our “VECMA Explained” page to understand the key concepts at play.

Latest News

Online talk on the role of simulation-based science

In this edition of the Simulation-based Science series hosted by the Institute for Advanced Study (IAS) of the University of Amsterdam, Peter Coveney will give a talk on the role of simulation-based science in decision-making for healthcare, government and industry. When: 26 February 2021 | 1600-1700CET / 1500-1600GMT Where: https://uva-live.zoom.us/j/6023898922 Title: The Role of Simulation-Based…

VECMA on CovidSim

In an article titled ‘The impact of uncertainty on predictions of the CovidSim epidemiological code’ and published by Nature Computational Science on 22 February 2021, VECMA reports on an analysis of CovidSim, the Imperial College model upon which the UK government relied in part to model various non-pharmaceutical intervention strategies, and guide its government policy…

PhD studentship in Virtual Human Cardiovascular Modelling & Simulation

UCL Chemistry Department is offering a fully funded studentship for three years to a highly motivated candidate to start in March 2021. The project will involve a collaboration with CBK Sci Con and is co-funded by them. The student will work on scientific applications of HemeLB, a flexible open source lattice-Boltzmann code for the simulation…