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.

Filter by Matrix Size and Shape

Rows
Columns
Nonzeros

Filter by Matrix Structure and Entry Type

Pattern Symmetry
Numerical Symmetry
Strongly Connected Components

Filter by Matrix Metadata

Matrix ID
Year
Displaying collection matrices 261 - 280 of 2904 in total
Id Name Group Rows Cols Nonzeros Kind Date Download File
154 fs_760_3 HB 760 760 5,816 Subsequent 2D/3D Problem 1983 MATLAB Rutherford Boeing Matrix Market
151 fs_680_3 HB 680 680 2,471 Subsequent 2D/3D Problem 1983 MATLAB Rutherford Boeing Matrix Market
268 west0497 HB 497 497 1,721 Chemical Process Simulation Problem 1983 MATLAB Rutherford Boeing Matrix Market
1315 torsion1 GHS_psdef 40,000 40,000 197,608 Duplicate Optimization Problem 1983 MATLAB Rutherford Boeing Matrix Market
149 fs_680_1 HB 680 680 2,184 2D/3D Problem Sequence 1983 MATLAB Rutherford Boeing Matrix Market
150 fs_680_2 HB 680 680 2,424 Subsequent 2D/3D Problem 1983 MATLAB Rutherford Boeing Matrix Market
267 west0479 HB 479 479 1,888 Chemical Process Simulation Problem 1983 MATLAB Rutherford Boeing Matrix Market
632 lp_grow15 LPnetlib 300 645 5,620 Linear Programming Problem 1983 MATLAB Rutherford Boeing Matrix Market
208 mahindas HB 1,258 1,258 7,682 Economic Problem 1984 MATLAB Rutherford Boeing Matrix Market
77 bcsstm27 HB 1,224 1,224 56,126 Structural Problem 1984 MATLAB Rutherford Boeing Matrix Market
76 bcsstm26 HB 1,922 1,922 1,922 Structural Problem 1984 MATLAB Rutherford Boeing Matrix Market
75 bcsstm25 HB 15,439 15,439 15,439 Structural Problem 1984 MATLAB Rutherford Boeing Matrix Market
226 orsirr_2 HB 886 886 5,970 Computational Fluid Dynamics Problem 1984 MATLAB Rutherford Boeing Matrix Market
227 orsreg_1 HB 2,205 2,205 14,133 Computational Fluid Dynamics Problem 1984 MATLAB Rutherford Boeing Matrix Market
73 bcsstm23 HB 3,134 3,134 3,134 Structural Problem 1984 MATLAB Rutherford Boeing Matrix Market
74 bcsstm24 HB 3,562 3,562 3,562 Structural Problem 1984 MATLAB Rutherford Boeing Matrix Market
242 sherman1 HB 1,000 1,000 3,750 Computational Fluid Dynamics Problem 1984 MATLAB Rutherford Boeing Matrix Market
69 bcsstm19 HB 817 817 817 Structural Problem 1984 MATLAB Rutherford Boeing Matrix Market
70 bcsstm20 HB 485 485 485 Structural Problem 1984 MATLAB Rutherford Boeing Matrix Market
239 saylr1 HB 238 238 1,128 Computational Fluid Dynamics Problem 1984 MATLAB Rutherford Boeing Matrix Market