# Bai

Kind: 2D/3D Problem, Chemical Process Simulation Problem, Computational Fluid Dynamics Problem, Computational Fluid Dynamics Problem Sequence, Electromagnetics Problem, Materials Problem, Power Network Problem, Robotics Problem, Statistical/Mathematical Problem, Subsequent Computational Fluid Dynamics Problem
Max Nonzeros: 463360
Number of Graphs: 78
Number of Nodes (Median): 961
Number of Nodes (Range): 62 - 23560

`Matrices from Z. Bai, D. Day, J. Demmel, and J. Dongarra.
located at ftp.ms.uky.edu : pub/misc/bai/Collection.`

```
Original README file:
--------------------------------------------------------------------------------

This directory contains the data files for the test matrices.

Title                                                                   Key
-----------------------------------------------------------------------+--------

square dielectric waveguid, H. Dong                                     DW256A
                                                                        DW245B
                                                                        DW1024
                                                                        DW4096

bounded finline waveguide eigenmodes, B. Shultz and S. Gedney           BFWA62
                                                                        BFWB62
                                                                        BFWA398
                                                                        BFWB398
                                                                        BFWA782
                                                                        BFWB782

Magneto-hydro-dynamics Alfven spectral problem,                         MHDA416
                                                                        MHDB416

Airfoil  (A. Mahajan)                                                   AF23560

Quebec Hydro Power system, Deo                                          QH882

Chuck matrix (multiple eigenvalues)  J. Cullum                          CK104
                                                                        CK400
                                                                        CK656

LOPSI Stochastic Test Matrix                                            LOP163

Model ordinary differential eigenvalue problem                          ODEPA400
                                                                        ODEPB400

Model convection-diffusion differential equations                       CDDE1
                                                                        CDDE2
                                                                        CDDE3
                                                                        CDDE4
                                                                        CDDE5
                                                                        CDDE6

Brusselator wave model in transport interaction of chemical solutions   BWM200
                                                                        BWM2000

Markov Chain Modeling, Random Walk  (m = 15)  G. W. Stewart             RW136
                                    (m = 30)                            RW496
                                    (m = 100)                           RW5151

model PDE problem, H. Elman         nx = ny = 15                        PDE225
                                    nx = ny = 30                        PDE900
                                    nx=47, ny=63                        PDE2961

Quantum chemistry (complex symmetric)                                   QC324
                                                                        QC2534

---------------- to be included ------------------------------------------------
Orr-Sommerfeld  (complex matrix)

Ising mode (size? and parameters?)

Robotic control (CAD in C program)                                      ROB480

Taylor-Couette flow

NASA AMES arc2d problems (16,256 by 16,256)
```

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