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
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Janna/Bump_2911: 3D geomechanical reservoir simulation           
Authors: Carlo Janna and Massimiliano Ferronato                  
Symmetric Positive Definite Matrix                               
# equations:     2,911,419                                       
# non-zeroes:  130,378,257                                       
The matrix Bump_2911 is obtained from the 3D geomechanical       
simulation of a gas-reservoir 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 traction-free
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. S229-S249, 2013.        
2) C. Janna, M. Ferronato, G. Gambolati. "The use of supernodes  
in factored sparse approximate inverse preconditioning". SIAM    
Journal on Scientific Computing, submitted.