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 481 - 500 of 2904 in total
Id Name Group Rows Cols Nonzeros Kind Date Download File
73 bcsstm23 HB 3,134 3,134 3,134 Structural Problem 1984 MATLAB Rutherford Boeing Matrix Market
42 bcsstk20 HB 485 485 3,135 Structural Problem 1984 MATLAB Rutherford Boeing Matrix Market
2040 ch8-8-b1 JGD_Homology 1,568 64 3,136 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
824 utm300 TOKAMAK 300 300 3,155 Electromagnetics Problem 1996 MATLAB Rutherford Boeing Matrix Market
126 dwt_492 HB 492 492 3,156 Structural Problem 1980 MATLAB Rutherford Boeing Matrix Market
256 str_400 HB 363 363 3,157 Subsequent Optimization Problem 1978 MATLAB Rutherford Boeing Matrix Market
644 lp_modszk1 LPnetlib 687 1,620 3,168 Linear Programming Problem 1994 MATLAB Rutherford Boeing Matrix Market
2560 cz308 CPM 308 308 3,182 2D/3D Problem 2012 MATLAB Rutherford Boeing Matrix Market
472 G12 Gset 800 800 3,200 Undirected Weighted Random Graph 1996 MATLAB Rutherford Boeing Matrix Market
471 G11 Gset 800 800 3,200 Undirected Weighted Random Graph 1996 MATLAB Rutherford Boeing Matrix Market
473 G13 Gset 800 800 3,200 Undirected Weighted Random Graph 1996 MATLAB Rutherford Boeing Matrix Market
1824 small Meszaros 677 1,400 3,207 Linear Programming Problem Sequence 2004 MATLAB Rutherford Boeing Matrix Market
123 dwt_346 HB 346 346 3,226 Structural Problem 1980 MATLAB Rutherford Boeing Matrix Market
692 lp_standata LPnetlib 359 1,274 3,230 Linear Programming Problem MATLAB Rutherford Boeing Matrix Market
1939 bibd_81_2 JGD_BIBD 3,240 3,240 3,240 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
4 685_bus HB 685 685 3,249 Power Network Problem 1985 MATLAB Rutherford Boeing Matrix Market
222 nos6 HB 675 675 3,255 2D/3D Problem 1982 MATLAB Rutherford Boeing Matrix Market
82 bp_0 HB 822 822 3,276 Optimization Problem Sequence 1978 MATLAB Rutherford Boeing Matrix Market
257 str_600 HB 363 363 3,279 Subsequent Optimization Problem 1978 MATLAB Rutherford Boeing Matrix Market
674 lp_scrs8 LPnetlib 490 1,275 3,288 Linear Programming Problem 1981 MATLAB Rutherford Boeing Matrix Market