ALERT: THE COLLECTION IS OFFLINE BECAUSE OF 100x HIGHER DOWNLOADS THAN NORMAL. The website is up but the matrix files are not accessible. THE PROBLEM IS EXCESSIVE DOWNLOADS FROM JOBS RUNNING ON AWS ITSELF, POUNDING THE DATA. We have no estimate on when this will be resolved, but it will take some time (weeks perhaps?). Please do not contact us to ask when it will be up; the answer will be the same as this alert box. If you are running these AWS workloads, please revise them. All interfaces we provide (Python, MATLAB, Java gui) download a matrix ONCE and then cache it locally. Do the same or use these interfaces.

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Matrix ID
Year
Displaying collection matrices 381 - 400 of 2904 in total
Id Name Group Rows Cols Nonzeros Kind Date Download File
12 ash958 HB 958 292 1,916 Least Squares Problem 1974 MATLAB Rutherford Boeing Matrix Market
76 bcsstm26 HB 1,922 1,922 1,922 Structural Problem 1984 MATLAB Rutherford Boeing Matrix Market
166 gre_512 HB 512 512 1,976 Directed Weighted Graph 1981 MATLAB Rutherford Boeing Matrix Market
2061 mk11-b1 JGD_Homology 990 55 1,980 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
321 olm500 Bai 500 500 1,996 Computational Fluid Dynamics Problem 1994 MATLAB Rutherford Boeing Matrix Market
875 mesh2e1 Pothen 306 306 2,018 Structural Problem 2003 MATLAB Rutherford Boeing Matrix Market
876 mesh2em5 Pothen 306 306 2,018 Structural Problem 2003 MATLAB Rutherford Boeing Matrix Market
2164 kneser_6_2_1 JGD_Margulies 601 676 2,027 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
1930 bibd_17_3 JGD_BIBD 136 680 2,040 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
2205 Trefethen_150 JGD_Trefethen 150 150 2,040 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
1982 GL6_D_10 JGD_GL6 163 341 2,053 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
1744 p0201 Meszaros 133 334 2,056 Linear Programming Problem 2004 MATLAB Rutherford Boeing Matrix Market
266 west0381 HB 381 381 2,134 Chemical Process Simulation Problem 1983 MATLAB Rutherford Boeing Matrix Market
2143 Trec9 JGD_Kocay 47 201 2,147 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
1678 gas11 Meszaros 459 862 2,166 Linear Programming Problem 2004 MATLAB Rutherford Boeing Matrix Market
149 fs_680_1 HB 680 680 2,184 2D/3D Problem Sequence 1983 MATLAB Rutherford Boeing Matrix Market
1639 tols340 Bai 340 340 2,196 Computational Fluid Dynamics Problem 1991 MATLAB Rutherford Boeing Matrix Market
607 lp_brandy LPnetlib 220 303 2,202 Linear Programming Problem MATLAB Rutherford Boeing Matrix Market
1745 p0282 Meszaros 241 523 2,207 Linear Programming Problem 2004 MATLAB Rutherford Boeing Matrix Market
8 ash292 HB 292 292 2,208 Least Squares Problem 1974 MATLAB Rutherford Boeing Matrix Market