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.

Recent Posts

November 28, 2019

We are spreading our climate research widely across the general public. Researchers from the VECMA project has recently drafted an article for the Conversation around…

Read More »

November 19, 2019

Call for Papers open for the 17th Multiscale Modelling and Simulation Workshop, to be held in conjunction with the International Conference on Computational Science (ICCS)…

Read More »

November 14, 2019

CALL FOR PAPERS: UNCERTAINTY QUANTIFICATION FOR COMPUTATIONAL MODELS The UNEQUIvOCAL thematic track takes place during the International Conference on Computational Science ICCS 2020 in Amsterdam, The…

Read More »

October 28, 2019

Supervisor: Professor P V Coveney, UCL Start date: January 2020. UCL in collaboration with Hexcel ( are offering a studentship to a highly motivated candidate…

Read More »

October 24, 2019

UNCERTAINTY QUANTIFICATION FOR COMPUTATIONAL MODELS Call for papers: we are organising a thematic track on Uncertainty Quantification at the ICCS conference in Amsterdam, June 3-5…

Read More »

September 16, 2019

We are very pleased to announce the Month 15 release of VECMA VVUQ Toolkit (VECMAtk). The software development of the VECMAtk is the central task…

Read More »

September 5, 2019

In our first All Hands Meeting (AHM), which was hosted by the University of Amsterdam on the 9th and 10th of May 2019, Amsterdam, participated…

Read More »

August 23, 2019

Quantum computers represent a new way to process information. Might they be able to crack what are currently thought to be unbreakable codes and answer…

Read More »

July 27, 2019

Our first AHM, which took place at the University of Amsterdam on the 9th and 10th of May, attracted over 40 participants with an excellent…

Read More »

July 27, 2019

Applications are invited for a Research Fellow/Software Engineer to work with Professor Peter Coveney in the Department of Chemistry at University College London. The successful…

Read More »


17th Edition of the Multiscale Modelling and Simulation Workshop 2020 (at ICCS 2020), abstract submission deadline: January 15th 2020

Call for papers deadline: Jan 6th, for thematic track on Uncertainty Quantification for Computational Models (UNEQUIvOCAL) at ICCS2020

Climate refugees: why we can't yet predict where millions of displaced people will go via @ConversationUK

Load More...