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 1841 - 1860 of 2904 in total
Id Name Group Rows Cols Nonzeros Kind Date Download File
10 ash608 HB 608 188 1,216 Least Squares Problem 1974 MATLAB Rutherford Boeing Matrix Market
9 ash331 HB 331 104 662 Least Squares Problem 1974 MATLAB Rutherford Boeing Matrix Market
8 ash292 HB 292 292 2,208 Least Squares Problem 1974 MATLAB Rutherford Boeing Matrix Market
7 ash219 HB 219 85 438 Least Squares Problem 1974 MATLAB Rutherford Boeing Matrix Market
6 arc130 HB 130 130 1,037 Materials Problem 1974 MATLAB Rutherford Boeing Matrix Market
5 abb313 HB 313 176 1,557 Least Squares Problem 1974 MATLAB Rutherford Boeing Matrix Market
4 685_bus HB 685 685 3,249 Power Network Problem 1985 MATLAB Rutherford Boeing Matrix Market
3 662_bus HB 662 662 2,474 Power Network Problem 1985 MATLAB Rutherford Boeing Matrix Market
2 494_bus HB 494 494 1,666 Power Network Problem 1985 MATLAB Rutherford Boeing Matrix Market
1 1138_bus HB 1,138 1,138 4,054 Power Network Problem 1985 MATLAB Rutherford Boeing Matrix Market
282 zenios HB 2,873 2,873 1,314 Optimization Problem 1985 MATLAB Rutherford Boeing Matrix Market
281 young4c HB 841 841 4,089 Acoustics Problem 1984 MATLAB Rutherford Boeing Matrix Market
280 young3c HB 841 841 3,988 Acoustics Problem 1984 MATLAB Rutherford Boeing Matrix Market
279 young2c HB 841 841 4,089 Duplicate Acoustics Problem 1984 MATLAB Rutherford Boeing Matrix Market
278 young1c HB 841 841 4,089 Acoustics Problem 1984 MATLAB Rutherford Boeing Matrix Market
277 wm3 HB 207 260 2,948 Economic Problem 1982 MATLAB Rutherford Boeing Matrix Market
276 wm2 HB 207 260 2,942 Economic Problem 1982 MATLAB Rutherford Boeing Matrix Market
275 wm1 HB 207 277 2,909 Economic Problem 1982 MATLAB Rutherford Boeing Matrix Market
274 will57 HB 57 57 281 Semiconductor Device Problem 1970 MATLAB Rutherford Boeing Matrix Market
273 will199 HB 199 199 701 Structural Problem 1979 MATLAB Rutherford Boeing Matrix Market