Linear Algebra

Topic Replies Activity
About the Linear Algebra category 1 January 28, 2019
Assembling in Parallel and Solving in Serial 5 October 16, 2019
Preconditioner for indefinite linear system 3 October 4, 2019
Creating a PETSc Matrix from given Matrix, solve eigenvalue problem (petsc4py?) 4 October 1, 2019
Krylov solver failing with MPI run / parallel 5 September 29, 2019
How to convert nonlinear operator in FEniCS to PETSc? 1 September 25, 2019
Error implementing a constraint on a 2D crack propagation problem 1 September 17, 2019
PETSC ILU preconditioner not working with mpi run 3 September 5, 2019
Implementing the Newton Method per hand 5 August 26, 2019
Implementing modified equation system for given strain/stress 1 August 26, 2019
Parallel Solver is Slow 6 August 25, 2019
Periodic Solver Divergence 7 August 7, 2019
Pre-Assembling of the matrixes for time-dependent non-linear problems 1 August 1, 2019
MatMatMult of PETSC 3 July 30, 2019
Iterative solver for incompressible solid 2 July 27, 2019
Boundary Condition relative to the Normal direction 3 July 24, 2019
AttributeError: 'module' object has no attribute 'block' 3 July 18, 2019
Orthonormal basis of FunctionSpace 3 July 9, 2019
Default quadrature rule is Keast? 1 July 3, 2019
Implementing Sherman-Morisson/Woodbury matrix formula in Newton solver? 1 June 19, 2019
Non-positive definite matrix & SLEPcEigenSolver 1 June 22, 2019
Spurious eigenvalues and eigenmodes 1 June 21, 2019
Solve A.T x = f 4 June 12, 2019
Cholesky factor of an assembled matrix 2 May 29, 2019
Trouble solving with GMRES 3 May 21, 2019
Choose linear solver for nonlinear problem 8 May 14, 2019
Dot product of tensor and vector 3 May 13, 2019
How to find out the type of solver used 2 May 13, 2019
PETSc error code is: 77 (Petsc has generated inconsistent data) 3 May 10, 2019
Multiplication of viscosity function and matrix 1 May 7, 2019