|
About the Linear Algebra category
|
|
0
|
507
|
January 28, 2019
|
|
Interpolation matrix with non matching meshes
|
|
24
|
1662
|
April 17, 2025
|
|
Matrix free petsc solver with multigrid (MG or GAMG) preconditioner
|
|
1
|
270
|
February 25, 2025
|
|
Gmres residual explodes after 1 iter (transport problem, anisotropic mesh)
|
|
1
|
51
|
January 14, 2025
|
|
ufl_legacy.log.UFLException: determinant_expr not implemented for shape (4, 4)
|
|
3
|
21
|
November 15, 2024
|
|
Invert matrix only once for time-dep problems
|
|
4
|
28
|
October 24, 2024
|
|
How to create a Matrix (dolfin.cpp.la.Matrix) from Vectors (dolfin.cpp.la.Vector)?
|
|
6
|
2236
|
September 24, 2024
|
|
Elementwise multiplication in variational form / Hadamard product
|
|
1
|
38
|
September 9, 2024
|
|
Save and load the LU factorization results of a PETSc KSP direct solver
|
|
2
|
73
|
August 29, 2024
|
|
Linear solver change
|
|
1
|
39
|
August 18, 2024
|
|
Effective elasticity tensor
|
|
2
|
86
|
July 8, 2024
|
|
Using petsc4py.PETSc.SNES directly
|
|
23
|
4541
|
June 13, 2024
|
|
PETsc error code is : 63
|
|
5
|
120
|
May 28, 2024
|
|
Handling Time Terms in Implicit Difference Method
|
|
0
|
65
|
May 20, 2024
|
|
AttributeError: 'petsc4py.PETSc.KSP' object has no attribute 'matSolve'
|
|
7
|
181
|
April 30, 2024
|
|
Copy a numpy matrix into a fencis function
|
|
1
|
144
|
April 24, 2024
|
|
How to define uniform load on edge in 3D
|
|
5
|
1017
|
April 20, 2024
|
|
Creating a PETSc Matrix from given Matrix, solve eigenvalue problem (petsc4py?)
|
|
4
|
3097
|
April 16, 2024
|
|
AMG for elasticity problems leaks with PETSc AMG smoothers
|
|
3
|
355
|
April 12, 2024
|
|
SLEPc gives indefinite matrix error
|
|
0
|
211
|
April 5, 2024
|
|
Compute Null Space of Assembled PETSc Matrix?
|
|
1
|
510
|
February 21, 2024
|
|
Implementing the Newton Method per hand
|
|
5
|
3249
|
February 20, 2024
|
|
Default parameters for NonLinearVariationalSolver
|
|
5
|
603
|
February 14, 2024
|
|
Instability when solving the linear system
|
|
2
|
146
|
January 24, 2024
|
|
How to use multi-grid "Trilinos/ml" preconditioner when FEniCSx is installed with conda-forge?
|
|
6
|
342
|
January 11, 2024
|
|
Matrix multiplication between ufl shape (2,2) and (2,)
|
|
1
|
332
|
December 29, 2023
|
|
Availability of diagonal scaling preconditioner in PETSc
|
|
0
|
189
|
October 20, 2023
|
|
Error with PETSc
|
|
4
|
343
|
October 4, 2023
|
|
Reapplying boundary conditions to the matrix
|
|
4
|
511
|
October 3, 2023
|
|
Solver Nolinear
|
|
2
|
312
|
August 23, 2023
|