iiinova — where your digital self keeps evolving

Charlie Vanaret @cvanaret.bsky.social · 10/09/2026

𝐔𝐧𝐨 is catching up to the big names on the 𝐌𝐢𝐭𝐭𝐞𝐥𝐦𝐚𝐧𝐧 𝐛𝐞𝐧𝐜𝐡𝐦𝐚𝐫𝐤! ⚡ Uno v2.9.0 stepped up its barrier method and now solves 45/47 𝐢𝐧𝐬𝐭𝐚𝐧𝐜𝐞𝐬 github.com/cvanaret/Uno/releases/tag/v2.9.0 #optimization #mathematicalprogramming #numericaloptimization #barrier #oss #foss #julialang #unosolver #python #cpp

github.com

Release v2.9.0 · cvanaret/Uno

Uno v2.9.0 implements substantial improvements to the barrier method. As of Sept 9, 2026, Uno can solve 45/47 instances on the Mittelmann benchmark, in about the same time as IPOPT. Features Secon...

240

Charlie Vanaret @cvanaret.bsky.social · 11/03/2026

𝐮𝐧𝐨𝐩𝐲 finally available on #Windows! With Uno, finally take full control of your SQP/barrier solver Go grab it! Ships with #HiGHS, #BQPD, and #MUMPS Github 👉 github.com/cvanaret/Uno Developed at @zuseinstitute.bsky.social #optimization #numericaloptimization #oss #foss #python #sqp #barrier #cpp

010

Reposted by Charlie Vanaret

ISMP 2027 – Amsterdam @ismp2027.bsky.social · 27/02/2026

📢 #ISMP2027 comes to Amsterdam! The 26th International Symposium on Mathematical Programming will be held July 25–30, 2027. Join researchers from around the world to discuss advances, challenges, and opportunities in the theory and practice of mathematical optimization. 🔗 ismp2027.mathopt.nl #MOS

ismp2027.mathopt.nl

The 26th International Symposium on Mathematical Programming will be held in Amsterdam, The Netherlands, from July 25th through July 30th, 2027. The event is the symposium of the Mathematical Optimization Society (MOS).

1258

Charlie Vanaret @cvanaret.bsky.social · 16/12/2025

Early Christmas present: 𝐩𝐢𝐩 𝐢𝐧𝐬𝐭𝐚𝐥𝐥 𝐮𝐧𝐨𝐩𝐲 Uno is a unified SQP/barrier solver for nonlinearly constrained #optimization Available as precompiled binaries for Linux and macOS (Windows builds are WIP) + source distribution. Even better: precompiled BQPD and HiGHS are included 😎 #oss #foss #python

061

Charlie Vanaret @cvanaret.bsky.social · 21/11/2025

𝐔𝐧𝐨 has hit the 400-star mark on Github ✨ Really happy to see so much enthusiasm about our work! Install 𝐔𝐧𝐨𝐒𝐨𝐥𝐯𝐞𝐫.𝐣𝐥 in no time, and it's plug-and-play: github.com/cvanaret/Uno... #optimization #mathematicalprogramming #cpp #julialang #foss #oss #ipopt #modelpredictivecontrol #optimalcontrol

050

Charlie Vanaret @cvanaret.bsky.social · 20/11/2025

Uno's success story #2 (by Fredrik Bagge Carlson)🔥 Uno's filtersqp preset is particularly robust on mid-size problems. Try it out! github.com/cvanaret/Uno #optimization #mathematicaloptimization #mathematicalprogramming #sqp #barrier #oss #foss #ipopt #mpc #modelpredictivecontrol #cpp #julialang

120

Reposted by Charlie Vanaret

ArXiv math.OC Optimization and Control @optb0t.bsky.social · 11/11/2025

🔄 Updated Arxiv Paper Title: Implementing a unified solver for nonlinearly constrained optimization Authors: Charlie Vanaret, Sven Leyffer Read more: arxiv.org/abs/2406.13454

031

Charlie Vanaret @cvanaret.bsky.social · 18/11/2025

Uno's success story #1 (by @franckgaga.bsky.social) on the inverted pendulum case study 🎉 Uno unifies SQP and barrier methods in a highly customizable framework. Try it out! github.com/cvanaret/Uno #optimization #mathematicaloptimization #mpc #modelpredictivecontrol #julialang #oss #foss #ipopt

060

Charlie Vanaret @cvanaret.bsky.social · 30/10/2025

𝐔𝐧𝐨𝐒𝐨𝐥𝐯𝐞𝐫.𝐣𝐥 now a registered Julia package 🥳 Uno is a highly customizable #SQP and #barrier solver for nonlinearly constrained optimization. It can mimic #filterSQP (SQP method) and #IPOPT (barrier method) 👉 github.com/cvanaret/Uno #optimization #numericaloptimization #julialang #oss #foss #cpp

080

Charlie Vanaret @cvanaret.bsky.social · 09/07/2025

Uno 2.0.0 is out! Uno is a next-gen SQP/barrier solver for nonlinearly constrained optimization. Major changes: - a more powerful unification framework - BQPD now available as precompiled binaries: github.com/leyffer/BQPD... - a cool logo 👉 github.com/cvanaret/Uno/ #optimization #opensource #foss

github.com

GitHub - cvanaret/Uno: A next-gen SQP & barrier solver for nonlinearly constrained optimization

A next-gen SQP & barrier solver for nonlinearly constrained optimization - cvanaret/Uno

140

Charlie Vanaret @cvanaret.bsky.social · 08/07/2025

Don't miss our #ICCOPT session on Recent advances in open-source continuous solvers! Filippo Zanetti, David Kießling and myself will present the HiGHS, acados and Uno solvers, respectively, on July 22 at 10:30am. #optimization #mathematicalprogramming #unosolver #oss #foss #opensource #cpp #julia

540

Charlie Vanaret @cvanaret.bsky.social · 16/04/2025

I'm thrilled to present my landscape photography exhibition ARKTIS at the Mathematics Library of the TU Berlin @tuberlin.bsky.social Join me for the opening on April 29 at 6pm. Institut für Mathematik, Str. des 17. Juni 136, 10587 Berlin #photography #landscapephotography #berlin #arctic #arktis

2151

Charlie Vanaret @cvanaret.bsky.social · 10/03/2025

My nonconvex #optimization solver Uno (#SQP + #barrier) has reached floor(100𝝿) ⭐ on Github Assembles building blocks (such as computation of descent directions and globalization techniques) effortlessly github.com/cvanaret/Uno #foss #operationsresearch #numericaloptimization #cpp #IPOPT #filterSQP

020