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 1501 - 1520 of 2904 in total
Id Name Group Rows Cols Nonzeros Kind Date Download File
647 lp_osa_30 LPnetlib 4,350 104,374 604,488 Linear Programming Problem 1990 MATLAB Rutherford Boeing Matrix Market
2113 n4c5-b5 JGD_Homology 4,340 2,852 26,040 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
1868 viscoplastic1 Quaglino 4,326 4,326 61,166 Materials Problem 2007 MATLAB Rutherford Boeing Matrix Market
2020 ch6-6-b4 JGD_Homology 4,320 5,400 21,600 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
1545 c-26 Schenk_IBMNA 4,307 4,307 34,537 Optimization Problem 2006 MATLAB Rutherford Boeing Matrix Market
1658 rail4284 Mittelmann 4,284 1,096,894 11,284,032 Linear Programming Problem 2005 MATLAB Rutherford Boeing Matrix Market
1818 large Meszaros 4,282 8,617 20,635 Linear Programming Problem Sequence 2004 MATLAB Rutherford Boeing Matrix Market
1206 t2dal_a Oberwolfach 4,257 4,257 37,465 Duplicate Model Reduction Problem 2004 MATLAB Rutherford Boeing Matrix Market
1207 t2dal_e Oberwolfach 4,257 4,257 4,257 Duplicate Model Reduction Problem 2004 MATLAB Rutherford Boeing Matrix Market
1448 t2dal_bci Oberwolfach 4,257 4,257 37,465 Model Reduction Problem 2004 MATLAB Rutherford Boeing Matrix Market
1449 t2dal Oberwolfach 4,257 4,257 37,465 Model Reduction Problem 2004 MATLAB Rutherford Boeing Matrix Market
1800 deter6 Meszaros 4,255 12,113 24,771 Linear Programming Problem 2004 MATLAB Rutherford Boeing Matrix Market
2411 airfoil1 AG-Monien 4,253 4,253 24,578 2D/3D Problem 1998 MATLAB Rutherford Boeing Matrix Market
2023 ch7-6-b2 JGD_Homology 4,200 630 12,600 Combinatorial Problem 2008 MATLAB Rutherford Boeing Matrix Market
2364 M80PI_n Rommes 4,182 4,182 10,261 Eigenvalue/Model Reduction Problem 2010 MATLAB Rutherford Boeing Matrix Market
2372 S80PI_n Rommes 4,182 4,182 10,261 Eigenvalue/Model Reduction Problem 2010 MATLAB Rutherford Boeing Matrix Market
839 rdist1 Zitney 4,134 4,134 94,408 Chemical Process Simulation Problem 1992 MATLAB Rutherford Boeing Matrix Market
1543 c-24 Schenk_IBMNA 4,119 4,119 35,699 Optimization Problem 2006 MATLAB Rutherford Boeing Matrix Market
737 lhr04c Mallya 4,101 4,101 82,682 Chemical Process Simulation Problem 1997 MATLAB Rutherford Boeing Matrix Market
736 lhr04 Mallya 4,101 4,101 81,057 Chemical Process Simulation Problem 1994 MATLAB Rutherford Boeing Matrix Market