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About the Linear Algebra category
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0
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483
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January 28, 2019
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AttributeError: 'petsc4py.PETSc.KSP' object has no attribute 'matSolve'
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7
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49
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April 30, 2024
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Copy a numpy matrix into a fencis function
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1
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63
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April 24, 2024
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How to define uniform load on edge in 3D
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5
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931
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April 20, 2024
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Creating a PETSc Matrix from given Matrix, solve eigenvalue problem (petsc4py?)
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4
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2816
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April 16, 2024
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AMG for elasticity problems leaks with PETSc AMG smoothers
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3
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153
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April 12, 2024
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SLEPc gives indefinite matrix error
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0
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80
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April 5, 2024
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How to create a Matrix (dolfin.cpp.la.Matrix) from Vectors (dolfin.cpp.la.Vector)?
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4
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2009
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March 14, 2024
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Compute Null Space of Assembled PETSc Matrix?
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1
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371
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February 21, 2024
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Implementing the Newton Method per hand
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5
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2934
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February 20, 2024
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Default parameters for NonLinearVariationalSolver
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5
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237
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February 14, 2024
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Matrix free petsc solver with multigrid (MG or GAMG) preconditioner
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0
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113
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February 9, 2024
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Instability when solving the linear system
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2
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87
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January 24, 2024
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How to use multi-grid "Trilinos/ml" preconditioner when FEniCSx is installed with conda-forge?
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6
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220
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January 11, 2024
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Matrix multiplication between ufl shape (2,2) and (2,)
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1
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154
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December 29, 2023
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Interpolation matrix with non matching meshes
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18
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1001
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October 24, 2023
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Availability of diagonal scaling preconditioner in PETSc
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0
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146
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October 20, 2023
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Error with PETSc
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4
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264
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October 4, 2023
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Reapplying boundary conditions to the matrix
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4
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336
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October 3, 2023
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Solver Nolinear
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2
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248
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August 23, 2023
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Problem in solve linear system for a saddle point problem with preconditioners
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2
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235
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July 19, 2023
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Setting SNES solver with petsc4py segfaults
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8
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1274
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July 5, 2023
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Speeding up eigenvalue computation
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2
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854
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June 29, 2023
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Using inner product on non same dimmensional tensor
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2
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264
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May 10, 2023
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Grad(u) to numpy array
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9
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1803
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May 7, 2023
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Creating a custom PETScSNESSolver
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4
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906
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April 25, 2023
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Dot product without assembling vectors every time
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6
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518
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April 12, 2023
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How to set the tolerance of a solver
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1
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1014
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April 8, 2023
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Slicing Tensors using subset of Free Indices or multiple free indices
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1
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345
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April 5, 2023
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Geometrical Multigrid in dolfinX
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0
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310
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March 13, 2023
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