Events

2nd UltraBO Workshop, March 20-21, 2025

Held at Université de Lille, CRIStAL labs (France)

Session 1: Thursday, March 20th, afternoon

12:00 - 13:30 Welcome Lunch & Opening
13:30 - 14:00 N. Melab and G. Danoy. UltraBO: Two-Year Review
14:00 - 14:45 J. Rouzé. Qubit Mapping Problem Tackled Using Parallel Metaheuristics
14:45 - 15:30 T. Carneiro. Investigating Portability in Chapel for Tree-Based Optimization on GPU-Powered Clusters
15:30 - 16:00 Coffee Break
16:00 - 17:00 I. Tagliaferro. Distributed Parallel Branch-and-Bound based on an MPI+X Approach
17:00 - 18:00 G. Helbecque. Enhancing Parallel Branch-and-Bound with Adaptive Mechanisms and Fault Tolerance
18:00 - 18:30 Visit of the Learning Center

Session 2: Friday, March 21th, morning

09:00 – 10:00 A. Vorokhta. Generating Lower-Bound Computation Strategies in a Branch and Bound Algorithm: Application to the Permutation Flowshop Scheduling Problem
10:00 – 10:30 G. Maudet. Search Strategy Generation for Branch and Bound Using Genetic Programming
10:30 – 10:45 Coffee Break
10:45 – 11:15 G. Maudet. A Distance Metric for Mixed Integer Programming Instances
11:15 – 11:30 All members. Closing and Future Actions
11:30 – 12:15 Visit of the regional Data Center, guided by J. Gmys
12:30 – 14:30 Lunch at "La Table" Restaurant

Held at Université du Luxembourg (Luxembourg)

Session 1: Morning

09:30 - 09:45 Welcome Coffee & Opening
09:45 - 11:00 N. Melab and G. Danoy. UltraBO: One-Year Review
11:00 - 11:15 Coffee Break
11:15 - 12:00 T. Carneiro. Ultra-Scale Tree-Based Optimization using PGAS/Chapel
12:00 - 14:00 Lunch at "Schmelz" Restaurant

Session 2: Afternoon

14:00 - 14:45 G. Helbecque and I. Tagliaferro. Parallel Distributed B&B on Large GPU-Powered Clusters
14:45 - 15:30 G. Maudet and A. Vorokhta. Alternatives to B&B and its Hybridization with Metaheuristics
15:30 - 16:00 Permanent members. Future Actions & Perspectives

Mar. 20-21 2nd UltraBO Workshop held at Université de Lille, France.
Mar. 1 Jean-Philippe Valois joins the project as Master 2 Intern.
Jan. 15 Guillaume Helbecque moves into the position of Post-Doctoral Researcher.

Oct. 1 Ivan Tagliaferro De Oliveira Tezoto moves into the position of Doctoral Researcher.
May 31 Joint organization of 14th IEEE Workshop on Parallel / Distributed Combinatorics and Optimization (PDCO 2024), San Francisco, USA.
May 13-15 Joint organization of the Intl. Conf. on Optimization and Learning (OLA'2024), Dubrovnik, Croatia.
Apr. 4 1st UltraBO Workshop held at Université du Luxembourg, Luxembourg.
Mar. 1 Ivan Tagliaferro De Oliveira Tezoto joins the project as Master 2 Intern.
Mar. 1 Invited Seminar at University of Malaga: N. Melab, T. Carneiro and G. Helbecque. Ultra-scale Tree-based Optimization.

Dec. 1 Alisa Vorokhta joins the project as Doctoral Researcher.
Dec. 1 Gwen Maudet joins the project as Post-Doctoral Researcher.
Nov. 30 Invited Seminar for M2 “scientific computing” at ULille: T. Carneiro and G. Helbecque. Chapel-based Ultra-scale Exact Optimization.
Jul. 24 Upload of the Data Management Plan on the ANR site.
Jul. 18 Creation of the Web site of UltraBO.
May 19 Joint organization of 13th IEEE Workshop on Parallel / Distributed Combinatorics and Optimization (PDCO 2023), St Petersburg, USA.
May 9 Attendance of the workshop on Data Management Plan at University of Lille.
May 3-5 Joint organization of the Intl. Conf. on Optimization and Learning (OLA'2023), Malaga, Spain.
May 4 Kick-off of UltraBO.
Apr. 11 Attendance of the workshop on OpenAcess at University of Lille.
Mar. 1 Starting of UltraBO.