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 2261 - 2280 of 2904 in total
Id Name Group Rows Cols Nonzeros Kind Date Download File
237 psmigr_3 HB 3,140 3,140 543,160 Economic Problem 1983 MATLAB Rutherford Boeing Matrix Market
1870 psse0 YCheng 26,722 11,028 102,432 Power Network Problem 2007 MATLAB Rutherford Boeing Matrix Market
1871 psse1 YCheng 14,318 11,028 57,376 Power Network Problem 2007 MATLAB Rutherford Boeing Matrix Market
1872 psse2 YCheng 28,634 11,028 115,262 Power Network Problem 2007 MATLAB Rutherford Boeing Matrix Market
762 pwt Nasa 36,519 36,519 326,107 Duplicate Structural Problem 1995 MATLAB Rutherford Boeing Matrix Market
880 pwt Pothen 36,519 36,519 326,107 Structural Problem 2003 MATLAB Rutherford Boeing Matrix Market
1273 pwt GHS_psdef 36,519 36,519 326,107 Duplicate Structural Problem 1995 MATLAB Rutherford Boeing Matrix Market
369 pwtk Boeing 217,918 217,918 11,524,432 Structural Problem 1995 MATLAB Rutherford Boeing Matrix Market
844 qa8fk Cunningham 66,127 66,127 1,660,579 Acoustics Problem 2002 MATLAB Rutherford Boeing Matrix Market
845 qa8fm Cunningham 66,127 66,127 1,660,579 Acoustics Problem 2002 MATLAB Rutherford Boeing Matrix Market
326 qc2534 Bai 2,534 2,534 463,360 Electromagnetics Problem 1991 MATLAB Rutherford Boeing Matrix Market
327 qc324 Bai 324 324 26,730 Electromagnetics Problem 1991 MATLAB Rutherford Boeing Matrix Market
1626 qh1484 Bai 1,484 1,484 6,110 Power Network Problem 1994 MATLAB Rutherford Boeing Matrix Market
1627 qh768 Bai 768 768 2,934 Power Network Problem 1994 MATLAB Rutherford Boeing Matrix Market
328 qh882 Bai 882 882 3,354 Power Network Problem 1994 MATLAB Rutherford Boeing Matrix Market
1757 qiulp Meszaros 1,192 1,900 4,492 Linear Programming Problem 2004 MATLAB Rutherford Boeing Matrix Market
1427 qpband GHS_indef 20,000 20,000 45,000 Optimization Problem 1999 MATLAB Rutherford Boeing Matrix Market
1894 QRpivot MathWorks 660 749 3,808 Counter Example Problem 2008 MATLAB Rutherford Boeing Matrix Market
2660 Queen_4147 Janna 4,147,110 4,147,110 316,548,962 2D/3D Problem 2014 MATLAB Rutherford Boeing Matrix Market
1758 r05 Meszaros 5,190 9,690 104,145 Linear Programming Problem 2004 MATLAB Rutherford Boeing Matrix Market