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Sparse Matrix @sparsematrix.bsky.social · 4h

Pajek network: SciMet citation network

Size: 3084x3084
Nonzeros: 10413

Kind: Directed Multigraph
Author: E. Garfield
Date: 2002
Link: https://sparse.tamu.edu/Pajek/SciMet

Sparse Matrix of size 3084x3084 by E. Garfield.

1

Sparse Matrix @sparsematrix.bsky.social · 10h

Light hydrocarbon recovery, corrected version of LHR04

Size: 4101x4101
Nonzeros: 82682

Kind: Chemical Process Simulation Problem
Author: J. Mallya
Date: 1997
Link: https://sparse.tamu.edu/Mallya/lhr04c

Sparse Matrix of size 4101x4101 by J. Mallya.

Sparse Matrix @sparsematrix.bsky.social · 16h

Combinatorial optimization as polynomial eqns, Susan Margulies, UC Davis

Size: 204x181
Nonzeros: 542

Kind: Combinatorial Problem
Author: S. Margulies
Date: 2008
Link: https://sparse.tamu.edu/JGD_Margulies/cat_ears_3_1

Sparse Matrix of size 204x181 by S. Margulies.

1

Sparse Matrix @sparsematrix.bsky.social · 22h

T-beam, L = 520 mm, Quadratic four node DK type elements. R Kouhia

Size: 5563x5563
Nonzeros: 286341

Kind: Structural Problem
Author: R. Kouhia
Date: 2008
Link: https://sparse.tamu.edu/TKK/t520

Sparse Matrix of size 5563x5563 by R. Kouhia.

Sparse Matrix @sparsematrix.bsky.social · 1d

IBM TJ Watson, non-linear optimization

Size: 30235x30235
Nonzeros: 355139

Kind: Optimization Problem
Author: IBM
Date: 2006
Link: https://sparse.tamu.edu/Schenk_IBMNA/c-53

Sparse Matrix of size 30235x30235 by IBM.

Sparse Matrix @sparsematrix.bsky.social · 1d

Jacobian from MULTIMOD Mark3, oldstack 060

Size: 27449x27449
Nonzeros: 160723

Kind: Economic Problem
Author: P. Hollinger
Date: 2001
Link: https://sparse.tamu.edu/Hollinger/mark3jac060

Sparse Matrix of size 27449x27449 by P. Hollinger.

1

Sparse Matrix @sparsematrix.bsky.social · 1d

freeFlyingRobot optimal control problem (matrix 8 of 16)

Size: 4398x4398
Nonzeros: 34958

Kind: Optimal Control Problem
Author: B. Senses, A. Rao
Date: 2015
Link: https://sparse.tamu.edu/VDOL/freeFlyingRobot_8

Sparse Matrix of size 4398x4398 by B. Senses, A. Rao.

1

Sparse Matrix @sparsematrix.bsky.social · 1d

IBM TJ Watson, non-linear optimization

Size: 21132x21132
Nonzeros: 157040

Kind: Optimization Problem
Author: IBM
Date: 2006
Link: https://sparse.tamu.edu/Schenk_IBMNA/c-49

Sparse Matrix of size 21132x21132 by IBM.

Sparse Matrix @sparsematrix.bsky.social · 2d

Olaf Schenk, Univ. Basel: AutoForm Eng. GmbH, Zurich. sheet metal forming. indefinite

Size: 504855x504855
Nonzeros: 17579155

Kind: Subsequent Structural Problem
Author: AutoForm Eng.
Date: 2003
Link: https://sparse.tamu.edu/Schenk_AFE/af_shell6

Sparse Matrix of size 504855x504855 by AutoForm Eng..

Sparse Matrix @sparsematrix.bsky.social · 2d

STIFFNESS MATRIX FOR AUTOMOBILE CHASSIS (MSC NASTRAN) - PATTERN ONLY

Size: 44609x44609
Nonzeros: 2014701

Kind: Structural Problem
Author: R. Cigel, R. Grimes, J. Lewis, E. Meyer
Date: 1986
Link: https://sparse.tamu.edu/HB/bcsstk32

Sparse Matrix of size 44609x44609 by R. Cigel, R. Grimes, J. Lewis, E. Meyer.

Sparse Matrix @sparsematrix.bsky.social · 2d

linear programming problem, C. Meszaros test set

Size: 10828x33686
Nonzeros: 100525

Kind: Linear Programming Problem
Author: N/A
Date: 2004
Link: https://sparse.tamu.edu/Meszaros/lpl3

Sparse Matrix of size 10828x33686 by N/A.

Sparse Matrix @sparsematrix.bsky.social · 2d

DIMACS10 set: walshaw/cs4

Size: 22499x22499
Nonzeros: 87716

Kind: Undirected Graph
Author: C. Walshaw
Date: 2000
Link: https://sparse.tamu.edu/DIMACS10/cs4

Sparse Matrix of size 22499x22499 by C. Walshaw.

Sparse Matrix @sparsematrix.bsky.social · 3d

Simplicial complexes from Homology from Volkmar Welker.

Size: 200200x200200
Nonzeros: 800800

Kind: Combinatorial Problem
Author: V. Welker
Date: 2008
Link: https://sparse.tamu.edu/JGD_Homology/shar_te2-b3

Sparse Matrix of size 200200x200200 by V. Welker.

1 2

Sparse Matrix @sparsematrix.bsky.social · 3d

TEST MATRIX FROM FIDAP: EX40.MAT

Size: 7740x7740
Nonzeros: 456188

Kind: Computational Fluid Dynamics Problem
Author: A. Baggag, Y. Saad
Date: 1994
Link: https://sparse.tamu.edu/FIDAP/ex40

Sparse Matrix of size 7740x7740 by A. Baggag, Y. Saad.

Sparse Matrix @sparsematrix.bsky.social · 3d

Sandia/fpga_dcop_17 circuit simulation matrix. Sandia National Lab.

Size: 1220x1220
Nonzeros: 5892

Kind: Subsequent Circuit Simulation Problem
Author: R. Hoekstra
Date: 2003
Link: https://sparse.tamu.edu/Sandia/fpga_dcop_17

Sparse Matrix of size 1220x1220 by R. Hoekstra.

1

Sparse Matrix @sparsematrix.bsky.social · 3d

Pajek network: divorce laws in the 50 US states

Size: 50x9
Nonzeros: 225

Kind: Bipartite Graph
Author: N/A
Date: 2006
Link: https://sparse.tamu.edu/Pajek/divorce

Sparse Matrix @sparsematrix.bsky.social · 4d

Transmission line, 10 sections, SISO, index-1 DAE (CEPEL, Brazil)

Size: 528x528
Nonzeros: 1317

Kind: Eigenvalue/Model Reduction Problem
Author: F. Freitas
Date: 2010
Link: https://sparse.tamu.edu/Rommes/S10PI_n1

Sparse Matrix of size 528x528 by F. Freitas.

1

Sparse Matrix @sparsematrix.bsky.social · 4d

Chemical process separation sequence, S. Zitney, Cray Research

Size: 2836x2836
Nonzeros: 10965

Kind: Chemical Process Simulation Problem Sequence
Author: S. Zitney
Date: 1994
Link: https://sparse.tamu.edu/Zitney/extr1b

Sparse Matrix of size 2836x2836 by S. Zitney.

Sparse Matrix @sparsematrix.bsky.social · 4d

Finite element, Navier-Stokes & other transport eqns

Size: 17922x17922
Nonzeros: 561677

Kind: Computational Fluid Dynamics
Author: R. Goodwin
Date: 2018
Link: https://sparse.tamu.edu/Goodwin/Goodwin_040

Sparse Matrix of size 17922x17922 by R. Goodwin.

Sparse Matrix @sparsematrix.bsky.social · 4d

Netlib LP problem galenet: minimize c'*x, where Ax=b, lo<=x<=hi

Size: 8x14
Nonzeros: 22

Kind: Linear Programming Problem
Author: H. Greenberg
Date: N/A
Link: https://sparse.tamu.edu/LPnetlib/lpi_galenet

Sparse Matrix of size 8x14 by H. Greenberg.

Sparse Matrix @sparsematrix.bsky.social · 5d

Combinatorial optimization as polynomial eqns, Susan Margulies, UC Davis

Size: 1837x5529
Nonzeros: 16466

Kind: Combinatorial Problem
Author: S. Margulies
Date: 2008
Link: https://sparse.tamu.edu/JGD_Margulies/flower_4_4

Sparse Matrix of size 1837x5529 by S. Margulies.

Sparse Matrix @sparsematrix.bsky.social · 5d

Driven Cavity 10 x 10, Reynolds number: 200

Size: 1182x1182
Nonzeros: 29675

Kind: Subsequent Computational Fluid Dynamics Problem
Author: A. Chapman
Date: 1996
Link: https://sparse.tamu.edu/DRIVCAV/cavity06

Sparse Matrix of size 1182x1182 by A. Chapman.

1

Sparse Matrix @sparsematrix.bsky.social · 5d

FEM, cylindrical shell, 30x30 tri. mesh, stabilized MITC3 elements, R/t=10

Size: 5489x5489
Nonzeros: 217651

Kind: Structural Problem
Author: R. Kouhia
Date: 1997
Link: https://sparse.tamu.edu/Cylshell/s1rmt3m1

Sparse Matrix of size 5489x5489 by R. Kouhia.

Sparse Matrix @sparsematrix.bsky.social · 5d

spaceStation optimal control problem (matrix 8 of 14)

Size: 1157x1157
Nonzeros: 18945

Kind: Optimal Control Problem
Author: B. Senses, A. Rao
Date: 2015
Link: https://sparse.tamu.edu/VDOL/spaceStation_8

Sparse Matrix of size 1157x1157 by B. Senses, A. Rao.

Sparse Matrix @sparsematrix.bsky.social · 6d

QUEBEC HYDRO POWER SYSTEM

Size: 1484x1484
Nonzeros: 6110

Kind: Power Network Problem
Author: D. Ndereyimana
Date: 1994
Link: https://sparse.tamu.edu/Bai/qh1484

Sparse Matrix of size 1484x1484 by D. Ndereyimana.