ShewchukPCGLinearSolver
Linear system solver using the conjugate gradient iterative algorithm
Templates:
GraphScattered
Target: Sofa.Component.LinearSolver.Iterative
namespace: sofa::component::linearsolver::iterative
parents:
MatrixLinearSolver
Data:
| Name | Description | Default value |
|---|---|---|
| name | object name | unnamed |
| printLog | if true, emits extra messages at runtime. | 0 |
| tags | list of the subsets the objet belongs to | |
| bbox | this object bounding box | |
| componentState | The state of the component among (Dirty, Valid, Undefined, Loading, Invalid). | Undefined |
| listening | if true, handle the events, otherwise ignore the events | 0 |
| parallelInverseProduct | Parallelize the computation of the product J*M^{-1}*J^T where M is the matrix of the linear system and J is any matrix with compatible dimensions | 0 |
| iterations | maximum number of iterations of the Conjugate Gradient solution | 25 |
| tolerance | desired precision of the Conjugate Gradient Solution (ratio of current residual norm over initial residual norm) | 1e-05 |
| use_precond | Use preconditioner | 1 |
| update_step | Number of steps before the next refresh of precondtioners | 1 |
| build_precond | Build the preconditioners, if false build the preconditioner only at the initial step | 1 |
| graph | Graph of residuals at each iteration |
Links:
| Name | Description |
|---|---|
| context | Graph Node containing this object (or BaseContext::getDefault() if no graph is used) |
| slaves | Sub-objects used internally by this object |
| master | nullptr for regular objects, or master object for which this object is one sub-objects |
| linearSystem | The linear system to solve |
| preconditioner | Link towards the linear solver used to precondition the conjugate gradient |