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 1061 - 1080 of 2904 in total
Id Name Group Rows Cols Nonzeros Kind Date Download File
261 well1850 HB 1,850 712 8,755 Least Squares Problem 1979 MATLAB Rutherford Boeing Matrix Market
281 young4c HB 841 841 4,089 Acoustics Problem 1984 MATLAB Rutherford Boeing Matrix Market
260 well1033 HB 1,033 320 4,732 Least Squares Problem 1979 MATLAB Rutherford Boeing Matrix Market
259 watt_2 HB 1,856 1,856 11,550 Computational Fluid Dynamics Problem 1983 MATLAB Rutherford Boeing Matrix Market
258 watt_1 HB 1,856 1,856 11,360 Computational Fluid Dynamics Problem 1983 MATLAB Rutherford Boeing Matrix Market
257 str_600 HB 363 363 3,279 Subsequent Optimization Problem 1978 MATLAB Rutherford Boeing Matrix Market
256 str_400 HB 363 363 3,157 Subsequent Optimization Problem 1978 MATLAB Rutherford Boeing Matrix Market
255 str_200 HB 363 363 3,068 Subsequent Optimization Problem 1978 MATLAB Rutherford Boeing Matrix Market
254 str_0 HB 363 363 2,454 Optimization Problem Sequence 1978 MATLAB Rutherford Boeing Matrix Market
253 steam3 HB 80 80 314 Computational Fluid Dynamics Problem 1983 MATLAB Rutherford Boeing Matrix Market
252 steam2 HB 600 600 5,660 Computational Fluid Dynamics Problem 1983 MATLAB Rutherford Boeing Matrix Market
251 steam1 HB 240 240 2,248 Computational Fluid Dynamics Problem 1983 MATLAB Rutherford Boeing Matrix Market
250 sstmodel HB 3,345 3,345 22,749 Structural Problem 1983 MATLAB Rutherford Boeing Matrix Market
249 shl_400 HB 663 663 1,712 Subsequent Optimization Problem 1978 MATLAB Rutherford Boeing Matrix Market
917 fd12 Hohn 7,500 7,500 28,462 Materials Problem 2003 MATLAB Rutherford Boeing Matrix Market
918 fd15 Hohn 11,532 11,532 44,206 Materials Problem 2003 MATLAB Rutherford Boeing Matrix Market
919 fd18 Hohn 16,428 16,428 63,406 Materials Problem 2003 MATLAB Rutherford Boeing Matrix Market
920 sinc12 Hohn 7,500 7,500 283,992 Materials Problem 2003 MATLAB Rutherford Boeing Matrix Market
921 sinc15 Hohn 11,532 11,532 551,184 Materials Problem 2003 MATLAB Rutherford Boeing Matrix Market
922 sinc18 Hohn 16,428 16,428 948,696 Materials Problem 2003 MATLAB Rutherford Boeing Matrix Market