UM-Bridge Workshop 2022

UM-Bridge logo

UM-Bridge is an easy to use and language-agnostic software interface for coupling Uncertainty Quantification (UQ) methods to numerical models. It enables containerization of models for portability and reproducibility as well as access to cloud platforms. For details on UM-Bridge and a library of ready to run UQ benchmarks, see UM-Bridge documentation.

This workshop has the following goals:

Talk Recordings

Some of the talks are available online: Recordings


Time and Location

The workshop will be held online and span two days:

We plan to use as our online platform; details are TBA.


Registration is available through the registration form, up to the limit of 50 participants.

Introduction session

We will have a short session where each participant may (optionally) introduce themselves and say a few words about their research interests and current projects. This is supposed to help in finding interesting discussion partners. If you’d like to participate and show something, please send me up to 3 PDF slides until Saturday (Dec. 10) to; I will compile them in a single document to avoid delays in between.


For practical exercises, you will need working installations of


Times below in CET (GMT+1).

Italic: Invited talks about ongoing UQ projects involving UM-Bridge.

Monday, December 12

Time Session
10:00 - 10:10 Welcome
10:10 - 10:40 Linus Seelinger (Heidelberg uni.): Introduction to UM-Bridge
10:40 - 11:00 Mikkel Lykkegaard (digiLab Solutions): Multilevel Delayed Acceptance MCMC with tinyDA
11:00 - 11:20 Niu Zihua (LMU Munich): UQ on geophysics model using ExaHyPE and MUQ
11:20 - 11:40 Coffee break
11:40 - 13:00 Practical: UM-Bridge / Participants’ projects
14:00 - 14:40 Anne Reinarz (Durham uni.): Intro Docker containers, containerized UM-Bridge models/benchmarks
14:40 - 15:40 Brief introductions of participants
15:40 - 16:00 Coffee break
16:00 - 16:20 Aleksei Sorokin (Illinois Institute of Technology): Quasi-Monte Carlo with QMCPy
16:20 - 18:00 Practical: Containerized models / Participants’ projects
20:00 - 21:00 Late session: Q&A, discussions, etc. (primarily for western time zones)

Tuesday, December 13

Time Session
10:00 - 10:30 Cristian Mezzanotte (Google): Cloud platforms, HPC on kubernetes
10:30 - 11:00 Linus Seelinger (Heidelberg uni.): Cloud-based HPC for UM-Bridge models
11:00 - 11:20 Coffee break
11:20 - 11:40 Jean Bénézech (University of Bath): GMsFEM for carbon fiber composite models
11:40 - 12:00 Andrea Serani (CNR-INM Rome) / Lorenzo Tamellini (CNR-IMATI Pavia) : Sparse grids applied to naval model
12:00 - 13:00 Practical: Participants’ projects
14:00 - 15:00 Discussion groups
15:00 - 17:30 Practical: Participants’ projects
17:30 - 18:00 Wrap-up
20:00 - 21:00 Late session: Q&A, discussions, etc. (primarily for western time zones)