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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

VECMA on FETFX e-Magazine

VECMA was featured in a FETFX e-Magazine article titled ‘Reliability and Reproducibility in Computational Science: Can We Trust Algorithms?’. The article mentions the progress with VECMAtk in terms of facilitating reliability in computer simulations, and features the newly-produced VECMA video.

Self-assembly and dispersion of graphene oxide structures in polymers

Graphene oxide is extremely versatile, with potential applications in many engineering fields. But for its effective use, control of its structure is essential. For instance, thin films and membranes require highly ordered nanoparticle arrangements; composites require dispersed nanoparticles, and hydrogels require 3D porous arrangements. However, the structure of graphene oxide can vary significantly depending on…

Online Conference: Multiscale Modelling, Uncertainty Quantification and the Reliability of Computer Simulations

Date: 11-12 June 2020 Event type: Online Conference Platform: Zoom and Youtube (link provided upon registration) Programme: Download Publications: Proceedings published and openly accessible on SpringerLink as well as on the ICCS archive. VECMA held an online conference on 11-12 June 2020 on “Multiscale Modelling, Uncertainty Quantification and the Reliability of Computer Simulations”. The conference…