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OSQP: an operator splitting solver for quadratic programs

delete2020-02-20
delete672
PRE
AI
B
Bartolomeo Stellato *
G
Goran Banjac
P
Paul J. Goulart
A
Alberto Bemporad
S
Stephen Boyd
DOI:10.1007/s12532-020-00179-2delete
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摘要

摘要

En 中文
We present a general-purpose solver for convex quadratic programs based on the alternating direction method of multipliers, employing a novel operator splitting technique that requires the solution of a quasi-definite linear system with the same coefficient matrix at almost every iteration. Our algorithm is very robust, placing no requirements on the problem data such as positive definiteness of the objective function or linear independence of the constraint functions. It can be configured to be division-free once an initial matrix factorization is carried out, making it suitable for real-time applications in embedded systems. In addition, our technique is the first operator splitting method for quadratic programs able to reliably detect primal and dual infeasible problems from the algorithm iterates. The method also supports factorization caching and warm starting, making it particularly efficient when solving parametrized problems arising in finance, control, and machine learning. Our open-source C implementation OSQP has a small footprint, is library-free, and has been extensively tested on many problem instances from a wide variety of application areas. It is typically ten times faster than competing interior-point methods, and sometimes much more when factorization caching or warm start is used. OSQP has already shown a large impact with tens of thousands of users both in academia and in large corporations.
Keyword:
Optimization
Quadratic programming
Operator splitting
First-order methods
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期刊

Mathematical Programming Computation 封面图
Mathematical Programming Computation
IF:
3.6
论文数:
202
被引数:
1.9K

机构

I
IMT School for Advanced Studies Lucca
学者数:
676
论文数: 701
被引数: 693
E
ETH Zurich
学者数:
3.0W
论文数: 2.4W
被引数: 8.4W
S
swiss federal institutes of technology domain
学者数:
9.0W
论文数: 8.0W
被引数: 163
U
university of oxford
学者数:
9.8W
论文数: 8.6W
被引数: 137
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引用论文

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