Janna/Bump_2911
3D geomechanical reservoir simulation
Name 
Bump_2911 
Group 
Janna 
Matrix ID 
2659 
Num Rows

2,911,419 
Num Cols

2,911,419 
Nonzeros

127,729,899 
Pattern Entries

127,729,899 
Kind

2D/3D Problem 
Symmetric

Yes 
Date

2014 
Author

C. Janna, M. Ferronato 
Editor

T. Davis 
Structural Rank 
2,911,419 
Structural Rank Full 
true 
Num Dmperm Blocks

58,990 
Strongly Connect Components

58,990 
Num Explicit Zeros

0 
Pattern Symmetry

100% 
Numeric Symmetry

100% 
Cholesky Candidate

yes 
Positive Definite

yes 
Type

real 
Download 
MATLAB
Rutherford Boeing
Matrix Market

Notes 
Janna/Bump_2911: 3D geomechanical reservoir simulation
Authors: Carlo Janna and Massimiliano Ferronato
Symmetric Positive Definite Matrix
# equations: 2,911,419
# nonzeroes: 130,378,257
The matrix Bump_2911 is obtained from the 3D geomechanical
simulation of a gasreservoir discretized by linear tetrahedral
Finite Elements. The mechanical properties of the medium vary
with the depth and the geological formation. Zero displacement
are applied on bottom and lateral boundary, while a tractionfree
top boundary is assumed.
Further information may be found in the following papers:
1) C. Janna, M. Ferronato, G. Gambolati. "Enhanced Block FSAI
preconditioning using Domain Decomposition techniques". SIAM
Journal on Scientific Computing, 35, pp. S229S249, 2013.
2) C. Janna, M. Ferronato, G. Gambolati. "The use of supernodes
in factored sparse approximate inverse preconditioning". SIAM
Journal on Scientific Computing, submitted.
