Freescale/FullChip
circuit simulation, Kiran Gullapalli, Freescale Semiconductor, Inc.
Name 
FullChip 
Group 
Freescale 
Matrix ID 
2380 
Num Rows

2,987,012 
Num Cols

2,987,012 
Nonzeros

26,621,983 
Pattern Entries

26,621,990 
Kind

Circuit Simulation Problem 
Symmetric

No 
Date

2011 
Author

K. Gullapalli 
Editor

T. Davis 
Structural Rank 
2,987,012 
Structural Rank Full 
true 
Num Dmperm Blocks

35 
Strongly Connect Components

35 
Num Explicit Zeros

7 
Pattern Symmetry

100% 
Numeric Symmetry

0.6% 
Cholesky Candidate

no 
Positive Definite

no 
Type

real 
Download 
MATLAB
Rutherford Boeing
Matrix Market

Notes 
Fullchip circuit simulation matrix from Kiran Gullapalli, Freescale
Semiconductor, Inc.
This is a fullchip (everything that is actually built in silicon is
in the netlist), for an automotive part. For simulation, the
flashmemory and srammemory cores are removed. But everything else is
in the matrix.
The chip takes an external battery (voltage source), but has internal
voltage generators. the node of the external battery can be removed
from the matrix. but the internal generators create some VERY HIGH
degree nodes. So, there are about 6 nodes with degree greater than
1000 (actually, the degree is 2M+ for 2 of these).
After ordering, nnz(L+U) = 200,180,468, with about 1.03793E+11
flops (a += b * c is counted as one flop).
