VLSI/vas_stokes_4M

VLSI: semiconductor device and process simulation
Name vas_stokes_4M
Group VLSI
Matrix ID 2844
Num Rows 4,382,246
Num Cols 4,382,246
Nonzeros 131,577,616
Pattern Entries 131,577,616
Kind Semiconductor Process Problem
Symmetric No
Date 2018
Author Anonymous
Editor T. Davis
Structural Rank 4,382,246
Structural Rank Full true
Num Dmperm Blocks 71,468
Strongly Connect Components 71,468
Num Explicit Zeros 0
Pattern Symmetry 46.4%
Numeric Symmetry 11.4%
Cholesky Candidate no
Positive Definite no
Type real
Download MATLAB Rutherford Boeing Matrix Market
Notes 
VLSI: semiconductor device and process simulation                            
                                                                             
Process and Device Simulation matrices: nv1 and nv2 are very ill-conditioned.
Device simulation matrices in this set:                                      
   nv1, nv2, imagesensor, mosfet2, power9, radiation, test1, dgreen          
Process simulation matrices in this set:                                     
   vas_stokes_1M, vas_stokes_2M, vas_stokes_4M, stokes, ss1, ss              
                                                                             
Source: these are real matrices from industry.  The submittor                
requested that their name and company be withheld.