Netlib LP problem ken_18: minimize c'*x, where Ax=b, lo<=x<=hi
Name lp_ken_18
Group LPnetlib
Matrix ID 640
Num Rows 105,127
Num Cols 154,699
Nonzeros 358,171
Pattern Entries 358,171
Kind Linear Programming Problem
Symmetric No
Date 1991
Author J. Kennington
Editor D. Gay
Structural Rank 105,127
Structural Rank Full true
Num Dmperm Blocks 26,266
Strongly Connect Components 1
Num Explicit Zeros 0
Pattern Symmetry 0%
Numeric Symmetry 0%
Cholesky Candidate no
Positive Definite no
Type integer
Download MATLAB Rutherford Boeing Matrix Market
A Netlib LP problem, in lp/data/kennington.  For more information             
send email to netlib@ornl.gov with the message:                               
	 send index from lp                                                          
	 send readme from lp/data                                                    
	 send readme from lp/data/kennington                                         
The following are relevant excerpts from lp/data/kennington/readme:           
The "Kennington" problems: sixteen problems described in "An Empirical        
Evaluation of the KORBX Algorithms for Military Airlift Applications"         
by W. J. Carolan, J. E. Hill, J. L. Kennington, S. Niemi, S. J.               
Wichmann (Operations Research vol. 38, no. 2 (1990), pp. 240-248).            
The following table gives some statistics for the "Kennington"                
problems.  The number of columns excludes slacks and surpluses.               
The bounds column tells how many entries appear in the BOUNDS                 
section of the MPS file.  The mpc column shows the bytes in                   
the problem after "uncompress" and before "emps"; MPS shows                   
the bytes after "emps".  The optimal values were computed by                  
Vanderbei's ALPO, running on an SGI computer (with binary IEEE                
Name       rows  columns  nonzeros  bounds      mpc      MPS     optimal value
KEN-18   105128  154699    512719   309398   7138893  29855000  -5.2217025e+10
Submitted to Netlib by Irv Lustig.