The SuiteSparse Matrix Collection (formerly known as the University of Florida Sparse Matrix Collection), is a large and actively growing set of sparse matrices that arise in real applications. The Collection is widely used by the numerical linear algebra community for the development and performance evaluation of sparse matrix algorithms. It allows for robust and repeatable experiments: robust because performance results with artificially-generated matrices can be misleading, and repeatable because matrices are curated and made publicly available in many formats. Its matrices cover a wide spectrum of domains, include those arising from problems with underlying 2D or 3D geometry (as structural engineering, computational fluid dynamics, model reduction, electromagnetics, semiconductor devices, thermodynamics, materials, acoustics, computer graphics/vision, robotics/kinematics, and other discretizations) and those that typically do not have such geometry (optimization, circuit simulation, economic and financial modeling, theoretical and quantum chemistry, chemical process simulation, mathematics and statistics, power networks, and other networks and graphs). We provide software for accessing and managing the Collection, from MATLAB, Mathematica, Fortran, and C, as well as an online search capability. Graph visualization of the matrices is provided on this site via graphviz. The Collection is hosted here, and also mirrored at the University of Florida at www.cise.ufl.edu/research/sparse/matrices. The Collection is maintained by Tim Davis, Texas A&M University (email: davis@tamu.edu), Yifan Hu, Yahoo! Labs, and Scott Kolodziej, Texas A&M University.

General-audience description

Click here for an easy-to-understand description of the SuiteSparse Matrix Collection and its images. The page includes a video of a talk I gave at the Harn Museum at the University of Florida, for general audiences.

Sample Gallery of the SuiteSparse Matrix Collection:

Alemdar graph thumb Andrews graph thumb Ex3sta1 graph thumb Fxm3 6 graph thumb Fxm4 6 graph thumb Lp1 graph thumb Lpl1 graph thumb
Mip1 graph thumb Net25 graph thumb Pre2 graph thumb Notredame www graph thumb Chem97zt graph thumb Circuit 2 graph thumb Pkustk01 graph thumb
Pkustk12 graph thumb Aug3d graph thumb Dawson5 graph thumb Ncvxqp9 graph thumb Jnlbrng1 graph thumb Pds10 graph thumb Wikipedia 20070206 graph thumb
Poli large graph thumb Gupta3 graph thumb Hcircuit graph thumb Illc1033 graph thumb Lock1074 graph thumb Lock 700 graph thumb Aircraft graph thumb
Cep1 graph thumb Ex3sta1 graph thumb Lpl3 graph thumb Nemscem graph thumb Pltexpa graph thumb Spal 004 graph thumb Barth5 graph thumb
Skirt graph thumb Conf5 0 4x4 10 graph thumb Conf5 4 8x8 05 aplusat graph thumb Gearbox graph thumb Parabolic fem graph thumb Sstmodel graph thumb Commanche dual graph thumb
Finance256 graph thumb Pct20stif graph thumb Mplate graph thumb Rw5151 graph thumb Ncvxbqp1 graph thumb Ford2 graph thumb Opt1 graph thumb

Click on an image above for more details on each matrix. The images were created by Yifan Hu at Yahoo! Labs, with a graph drawing program that can generate truly beautiful drawings large graphs, based solely on the connectivity (that is, a sparse matrix). Take a look at his drawings of the matrices in the Collection, which are also mirrored here on the web page for each matrix.


Full details of the Collection are provided in our paper entitled The University of Florida Sparse Matrix Collection, by T. Davis and Y. Hu, published in the ACM Transactions on Mathematical Software, Vol 38, Issue 1, 2011, pages 1:1-1:25 (click here for PDF). Please cite that paper when using this Collection. For additional background, see Duff, I.S, Grimes, R. G, and Lewis, J. G, Sparse matrix test problems, ACM Trans. on Mathematical Software, vol 15, no. 1, pp 1-14, 1989, which describes the Harwell-Boeing Collection. See also how to cite LAW group.

Archival data for reproducible research

The Collection serves a vital role in the sparse matrix algorithms community, as a benchmark for algorithmic testing and development. Results in journal articles that use these matrices can be repeated by other researchers. The Collection also appears widely in other repositories or citation indices:

To access the Collection

There are several ways to download matrices from this Collection.

See the Interfaces tab at the top of this page for details on ssget, the Java GUI, and the Julia interface. Matrices are provided in three formats: MATLAB *.mat file, Rutherford-Boeing, and Matrix Market. The Rutherford-Boeing format is described in a document on the Rutherford-Boeing Sparse Matrix Collection. See the Matrix Market for a description of the Matrix Market format.

To submit matrices to the Collection:

Click on the Submit Matrix tab in the top menu bar on this page to submit matrices to the Collection.