Stefano Gualandi
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Stefano Gualandi
@famo2spaghi.bsky.social
Reposted by Stefano Gualandi
Amplifying this, representation in tech conferences is hard, send away recommendations
This fall I'm organizing a conference about open-source software. Thing is, I'm tired of plenaries given by straight white dudes.
Does the hive mind have *diverse* recommendations for speakers located in Europe who have interesting things to say about programming? Got some names but would love more!
March 19, 2025 at 6:17 PM
Reposted by Stefano Gualandi
NVIDIA Open-Sources cuOpt, Ushering in New Era of Decision Optimization | NVIDIA Blog
NVIDIA Open-Sources cuOpt, Ushering in New Era of Decision Optimization
Industry leaders advance complex decision-making and supply chain optimization with NVIDIA accelerated computing and cuOpt software.
blogs.nvidia.com
March 18, 2025 at 6:14 PM
Reposted by Stefano Gualandi
Nvidia Open-Sources CuOpt Article URL: https://blogs.nvidia.com/blog/cuopt-open-source/ Comments ...

https://blogs.nvidia.com/blog/cuopt-open-source/

Event Attributes
Visualization of NVIDIA CuOpt
Every second, businesses worldwide are making critical decisions. A logistics company decides which trucks to send where. A retailer figures out how to stock its shelves. An airline scrambles to reroute flights after a storm. These aren’t just routing choices — they’re high-stakes puzzles with millions of variables, and getting them wrong costs money and, sometimes, customers. That’s changing. NVIDIA today announced it will open-source cuOpt, an AI-powered decision optimization engine — making the powerful software free for developers to unlock real-time optimization at an unprecedented scale. Optimization ecosystem leaders COPT, the Xpress team at FICO, HiGHS, IBM and SimpleRose are integrating or evaluating cuOpt, accelerating decision-making across industries. Gurobi Optimization is evaluating and testing cuOpt solvers to refine first-order algorithms for next-level performance. NVIDIA is working with the COIN-OR Foundation to make cuOpt open source, in what is widely regarded as the oldest and largest such repository for operations research software. Meanwhile, a team of researchers at Arizona State University, Cornell Tech, Princeton University, University of Pavia and Zuse Institute of Berlin are exploring its capabilities, developing next-generation solvers and tackling complex optimization problems with exceptional speed. With the technology, airlines can reconfigure flight schedules mid-air to prevent cascading delays, power grids can rebalance in real time to avoid blackouts and financial institutions can manage portfolios with up-to-the-moment risk analysis. ## **Faster Optimization, Smarter Decisions** The best-known AI applications are all about predictions — whether forecasting weather or generating the next word in a sentence. But prediction is only half the challenge. The real power comes from acting on information in real time. That’s where cuOpt comes in. cuOpt dynamically evaluates billions of variables — inventory levels, factory output, shipping delays, fuel costs, risk factors and regulations — and delivers the best move in near real time. As AI agents and large language model-driven simulations take on more decision-making tasks, the need for instant optimization has never been greater. cuOpt, powered by NVIDIA GPUs, accelerates these computations by orders of magnitude. Unlike traditional optimization methods that navigate solution spaces sequentially or with limited parallelism, cuOpt taps into GPU acceleration to evaluate millions of possibilities simultaneously — finding optimal solutions exponentially faster for specific instances. It doesn’t replace existing techniques — it enhances them. By working alongside traditional solvers, cuOpt rapidly identifies high-quality solutions, helping CPU-based models discard bad paths faster. **** ## **Why Optimization Is So Hard — and How cuOpt Does It Better****** Every decision — where to send a truck, how to schedule workers and when to rebalance power grids — is a puzzle with an exponential number of possible answers. To put this into perspective, the number of possible ways to schedule 100 nurses in a hospital for the next month is greater than the number of atoms in the observable universe. Many traditional solvers search for solutions sequentially or with limited parallelism — like navigating a vast maze with a flashlight, one corridor at a time. cuOpt rewrites the rules by evaluating millions of possibilities intelligently, accelerating optimization exponentially. For years, workforce scheduling, logistics routing and supply-chain planning all took hours — sometimes days — to compute. NVIDIA cuOpt changes that — the numbers tell the story: * Linear programming acceleration: 70x faster on average than a CPU-based PDLP solver on large-scale benchmarks, with a 10x to 3,000x speedup range. * Mixed-integer programming (MIP): 60x faster MIP solves, as demonstrated by SimpleRose. * Vehicle routing: 240x speedup in dynamic routing, enabling cost to serve insights and near time route adjustments, as demonstrated by Lyric. Decisions that once took hours or days now take seconds. ## **Optimizing for a Better World** Better optimization doesn’t just make businesses more efficient — it makes the world more sustainable, resilient and equitable. Smarter decision-making leads to less waste. Energy grids can distribute power more efficiently, reducing blackouts and seamlessly integrating renewables like wind and solar. Supply chains can adjust dynamically to minimize excess inventory, cutting both costs and emissions. Hospitals in underserved regions can allocate beds, doctors and medicine in real time, helping lifesaving treatments reach patients faster. Humanitarian aid groups responding to disasters can instantly recalculate the best way to distribute food, water and medicine, reducing delays in critical moments. And public transit systems can adjust dynamically to demand, reducing congestion and travel times for millions of people. cuOpt isn’t just about more hardware — it’s about smarter search. Instead of going through every possibility, cuOpt intelligently navigates massive search spaces, focusing on constraint edges to converge faster. By using GPU acceleration, it evaluates multiple solutions in parallel, delivering real-time, high-efficiency optimization. ## **Industry Support — a New Era for Decision Intelligence** Optimization leaders such as FICO, Gurobi Optimization, IBM and SimpleRose are among the companies who are exploring the benefits of GPU acceleration or evaluating the possibility of integrating cuOpt into their workflows and evaluating its potential, spanning industrial planning to supply chain management and scheduling. ## **Smarter Decisions, Stronger Systems, Better Outcomes** cuOpt redefines optimization at scale. For businesses, as described, it means AI-powered optimization can reconfigure schedules, route fleets and reallocate resources in real time — cutting costs and boosting agility. For developers, it provides a high-performance AI toolkit that can solve decision problems up to 3,000x faster than CPU solvers in complex optimization challenges such as network data routing — optimizing the flow of video, voice, and web traffic to reduce congestion and improve efficiency — or electricity distribution, balancing supply and demand across power grids while minimizing losses and ensuring stable transmission. For researchers, it’s an open playground for pushing AI-driven decision-making to new frontiers. cuOpt will be released as open source and freely available for developers, researchers and enterprises later this year. ## **See cuOpt in Action** Explore real-world applications of cuOpt at these NVIDIA GTC sessions: * Revolutionize Supply Chain Analytics With AI and Accelerated Computing (Presented by EY) * Turbocharge Prescriptive Analytics and Optimization With GPU Acceleration (Presented by Simple Rose) * Advances on Decision Optimization * Connect With Accelerated Optimization AI Experts * Accelerating Portfolio Optimization For enterprise production deployments, cuOpt is supported as part of the NVIDIA AI Enterprise software platform and can be deployed as an NVIDIA NIM microservice — making it easy to integrate, scale and deploy across cloud, on-premises and edge environments. With its open-source release, developers will be able to easily access, modify and integrate the cuOpt source code into their own solutions. _Learn more_ _about how companies are already transforming their operations with cuOpt and_ _sign up_ _to be notified when the open-source software is available._ _See_ _notice_ _regarding software product information._ Categories: Data Center | Robotics | Software Tags: GTC 2025 | Industrial and Manufacturing | NVIDIA AI Enterprise | NVIDIA cuOpt | NVIDIA NIM | Open Source
blogs.nvidia.com
March 19, 2025 at 1:23 AM
Reposted by Stefano Gualandi
New item in our list of #orms resources:

Collection of videos from Associate Professor Alberto Del Pia, University of Wisconsin-Madison.
There are around 100 videos, collated into playlists relating to specific optimization papers taught at the university.
www.solvermax.com/resources/li...
February 6, 2025 at 10:32 PM
Reposted by Stefano Gualandi
New video! Terence Tao on how we measure the cosmos: youtu.be/YdOXS_9_P4U
Terence Tao on how we measure the cosmos | Part 1
YouTube video by 3Blue1Brown
youtu.be
February 8, 2025 at 1:46 PM
Reposted by Stefano Gualandi
Our research group CompOpt from the Università degli Studi di Pavia participated at the 3rd Workshop of the UMI Group Math4AIML in Bari, contributing with talks and posters on the latest developments in optimization and data science

@famo2spaghi.bsky.social @davideduma.bsky.social
January 31, 2025 at 5:46 PM
Reposted by Stefano Gualandi
The website of the EURO OSS on OR and ML, euroorml.euro-online.org, contains all talks for the first half of 2025!

💻 Register at forms.gle/YWLb6EPKRQnQ... to receive zoom link

This is an activity of @euroonline.bsky.social, branding the role of #orms in #AI
January 10, 2025 at 9:43 AM
Reposted by Stefano Gualandi
This was #aussois1999. What about #aussois2025 #cow25?
January 6, 2025 at 10:48 AM
Reposted by Stefano Gualandi
Just used BlueArk to port all of my twitter's posts to bluesky. Two minutes to set it up, $6.50. Deleting my twitter account soon.
I decided to pay (less than $15) to have my 16 years Tweets on Twitter/X moved over to Bluesky. They will slowly be added at the bottom of my feed over the next nine days. I used this service: blueark.app
BlueArk
The new blue land is waiting for you. Bring your stories with BlueArk.
blueark.app
January 3, 2025 at 5:53 AM
Reposted by Stefano Gualandi
The abstract submission deadline for the 9th AIROYoung Workshop: "Shaping a Sustainable Future in the Era of Big Data" is now extended to January 10, 2025! 📅

🏆 Prizes:

Fedegari Best Poster Prize
OPTIT "OR in Practice" Presentation Prize
Submit your work & join us! 🌟

mate.unipv.it/ayw2025/
AIROYoung 2025 - Pavia
AIROYoung Workshop 2025
mate.unipv.it
January 2, 2025 at 10:02 AM
Reposted by Stefano Gualandi
📚 New Arxiv Paper

Title: Exact Verification of First-Order Methods via Mixed-Integer Linear Programming
Authors: Vinit Ranjan, Stefano Gualandi, Andrea Lodi, Bartolomeo Stellato

Read more: https://arxiv.org/abs/2412.11330
December 17, 2024 at 8:03 AM
Reposted by Stefano Gualandi
I have just signed the "Asilomar AI Principles".

Did you?

It's better late than ever.

futureoflife.org/open-letter/...
Asilomar AI Principles - Future of Life Institute
At a 2017 FLI conference, AI scientists and researchers developed the highly influential Asilomar AI governance principles. Add your signature.
futureoflife.org
December 14, 2024 at 7:33 PM
Reposted by Stefano Gualandi
Today something crazy happened. POT has reached 1000 citations (total) 🤩🚀. Very proud to be part of a scientific community that acknowledges open source research software. Please continue to use, cite and contribute to POT ! Small🧵below for those interested pythonot.github.io
December 13, 2024 at 9:54 AM
Reposted by Stefano Gualandi
The MIP workshop goes South America!

December 9-12, 2025

Universidad Adolfo Ibáñez
Viña del Mar, Chile

www.mixedinteger.org/MIPSouthAmer...

#orms
Mixed Integer Programming Workshop 2025
www.mixedinteger.org
December 13, 2024 at 11:58 AM
Reposted by Stefano Gualandi
First annoucement of the 2025 School on Column Generation (Paris, May 19-23, 2025)

registration opens Feb 3, 2025

www.gerad.ca/colloques/Co...

#orms
2025 School on Column Generation
www.gerad.ca
December 11, 2024 at 6:50 PM
Reposted by Stefano Gualandi
While the Knapsack problem is NP-Hard, the Fractional Knapsack problem can be solved in polynomial time, for instance via a greedy algorithm or linear programming.

🧩 Exercise: give a deterministic, linear-time algorithm for Fractional Knapsack. #TCSSky
December 11, 2024 at 10:14 AM
Reposted by Stefano Gualandi
19th Conference on Learning and Intelligent Optimization (LION19) to be held in Prague, Czech Republic, June 15–19, 2025, lion19.org #orms
LION19 - The 2025 Learning and Intelligent Optimization Conference
lion19.org
December 11, 2024 at 9:58 AM
Reposted by Stefano Gualandi
Questions about #Gurobi12? Join our upcoming webinar to explore the latest #MINLP capabilities, advanced resource management features, and our revamped, user-friendly documentation. Don’t wait—register today: www.gurobi.com/whats-new-gu...

#OperationsResearch #DataScience #Optimization
December 7, 2024 at 12:43 AM
Reposted by Stefano Gualandi
In case you missed it, the link to the competition is up : www.mixedinteger.org/2025/competi...
MIPcc25: The MIP Workshop 2025 Computational Competition
www.mixedinteger.org
December 7, 2024 at 12:58 PM
Reposted by Stefano Gualandi
🚀 To apply:

1⃣ Fill out the "Student Researcher 2025" application form for EMEA*:

www.google.com/about/career...

2⃣ Email Larisa Markeeva (the project host) and myself, letting us know you've applied 🎉 Also please feel free to contact us if you have any questions!

*this role is onsite in London 🇬🇧
https://google.com/about/careers/…
December 5, 2024 at 11:17 PM
Reposted by Stefano Gualandi
Our team at Google DeepMind is hiring Student Researchers for 2025!

🧑‍🔬 Interested in understanding reasoning capabilities of neural networks from first principles?
🧑‍🎓 Currently studying for a BS/MS/PhD?
🧑‍💻 Have solid engineering and research skills?

🌟 We want to hear from you! Details in thread.
December 5, 2024 at 11:08 PM