krylov¶
-
emg3d.solver.
krylov
(grid, model, sfield, efield, var)[source]¶ Krylov Subspace iterative solver for 3D CSEM data.
Using a Krylov subspace iterative solver (defined in var.sslsolver) implemented in SciPy with or without multigrid as a pre-conditioner ([Muld06]).
- The electric field is stored in-place in efield.
- The current error (l2-norm) is stored in var.l2.
- The reference error (l2-norm of sfield) is stored in var.l2_refe.
This function is called by
solve()
.Parameters: - grid :
emg3d.meshes.TensorMesh
The grid. See
emg3d.meshes.TensorMesh
.- model :
emg3d.models.VolumeModel
The Model. See
emg3d.models.VolumeModel
.- sfield :
emg3d.fields.SourceField
The source field. See
emg3d.fields.get_source_field()
.- efield :
emg3d.fields.Field
The electric field. See
emg3d.fields.Field
.- var :
MGParameters
instance As returned by
multigrid()
.