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 2221 - 2240 of 2904 in total
Id Name Group Rows Cols Nonzeros Kind Date Download File
2069 mk12-b4 JGD_Homology 62,370 51,975 311,850 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
983 ecl32 Sanghavi 51,993 51,993 380,415 Semiconductor Device Problem 2003 MATLAB Rutherford Boeing Matrix Market
368 pct20stif Boeing 52,329 52,329 2,698,463 Structural Problem 1995 MATLAB Rutherford Boeing Matrix Market
356 ct20stif Boeing 52,329 52,329 2,600,295 Structural Problem 1995 MATLAB Rutherford Boeing Matrix Market
1459 dictionary28 Pajek 52,652 52,652 178,076 Undirected Graph 2006 MATLAB Rutherford Boeing Matrix Market
1257 crankseg_1 GHS_psdef 52,804 52,804 10,614,210 Structural Problem 2004 MATLAB Rutherford Boeing Matrix Market
2029 ch7-7-b5 JGD_Homology 35,280 52,920 211,680 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
565 g7jac180sc Hollinger 53,370 53,370 641,290 Economic Problem 2001 MATLAB Rutherford Boeing Matrix Market
564 g7jac180 Hollinger 53,370 53,370 641,290 Economic Problem 2001 MATLAB Rutherford Boeing Matrix Market
807 struct3 Rothberg 53,570 53,570 1,173,694 Structural Problem 1997 MATLAB Rutherford Boeing Matrix Market
955 2D_54019_highK Schenk_IBMSDS 54,019 54,019 486,129 Semiconductor Device Problem 2003 MATLAB Rutherford Boeing Matrix Market
646 lp_osa_14 LPnetlib 2,337 54,797 317,097 Linear Programming Problem 1990 MATLAB Rutherford Boeing Matrix Market
761 nasasrb Nasa 54,870 54,870 2,677,324 Structural Problem 1995 MATLAB Rutherford Boeing Matrix Market
1282 srb1 GHS_psdef 54,924 54,924 2,962,152 Structural Problem 2004 MATLAB Rutherford Boeing Matrix Market
590 mark3jac120 Hollinger 54,929 54,929 322,483 Economic Problem 2001 MATLAB Rutherford Boeing Matrix Market
591 mark3jac120sc Hollinger 54,929 54,929 322,483 Economic Problem 2001 MATLAB Rutherford Boeing Matrix Market
1230 copter2 GHS_indef 55,476 55,476 759,952 Computational Fluid Dynamics Problem 2004 MATLAB Rutherford Boeing Matrix Market
1256 copter2 GHS_psdef 55,476 55,476 759,952 Duplicate Computational Fluid Dynamics Problem 2004 MATLAB Rutherford Boeing Matrix Market
850 pkustk04 Chen 55,590 55,590 4,218,660 Structural Problem 2002 MATLAB Rutherford Boeing Matrix Market
2824 Goodwin_071 Goodwin 56,021 56,021 1,797,934 Computational Fluid Dynamics 2018 MATLAB Rutherford Boeing Matrix Market