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| author |  David Grote <grote1@llnl.gov>
| 2020-09-22 20:05:55 -0700 |
|---|---|---|
| committer |  GitHub <noreply@github.com>
| 2020-09-22 20:05:55 -0700 |
| commit | 8610be2dfb6d37fa2caa3c93afa01b666caedc2d (patch) | |
| tree | 1f2c8adeeeba9b2acb17527e50afddf524678d2b /Docs/source/running_cpp | |
| parent | 6e847c4b0ae54e20a1aac6445a25f75a1e6cb7bc (diff) | |
| download | WarpX-8610be2dfb6d37fa2caa3c93afa01b666caedc2d.tar.gz WarpX-8610be2dfb6d37fa2caa3c93afa01b666caedc2d.tar.zst WarpX-8610be2dfb6d37fa2caa3c93afa01b666caedc2d.zip | |
Initial version of use_damp_fields_in_z_guard option (#1304)
* Initial version of use_damp_in_z_guard option
* Fix typo in WarpX.H
Co-authored-by: Edoardo Zoni <59625522+EZoni@users.noreply.github.com>
* Changed use_damp_in_z_guard to use_damp_fields_in_z_guard
* Added documentatin for use_damp_fields_in_z_guard
* Clean up for use_damp_fields_in_z_guard
* Added use_damp_fields_in_z_guard to picmi interface, and moved it to the psatd input group
* For RZ spectral, damping of the fields is on by default when not periodic
* Updated documentation for use_damp_fields_in_z_guard
Co-authored-by: Edoardo Zoni <59625522+EZoni@users.noreply.github.com>
Diffstat (limited to 'Docs/source/running_cpp')
| -rw-r--r-- | Docs/source/running_cpp/parameters.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Docs/source/running_cpp/parameters.rst b/Docs/source/running_cpp/parameters.rst index 4b1bdad57..a2911b9a5 100644 --- a/Docs/source/running_cpp/parameters.rst +++ b/Docs/source/running_cpp/parameters.rst @@ -974,6 +974,17 @@ Numerics and algorithms This requires `warpx.use_kspace_filter=1` and is only supported with the RZ spectral solver. +* ``warpx.use_damp_fields_in_z_guard`` (`0` or `1`) + When using the RZ spectrol solver, specifies whether to apply a + damping factor to the E and B fields in the guard cells + along z that extend beyond the edge of the domain. + When the boundary conditions along z are not periodic, this defaults to + true, otherwise false. The damping profile is + a sine squared and is applied to the fields on the outer half of the guards. + This damping is useful for damping high frequency numerical artifacts that + occur when there is parallel decomposition along z with non-periodic boundary + conditions. + * ``algo.current_deposition`` (`string`, optional) This parameter selects the algorithm for the deposition of the current density. Available options are: ``direct``, ``esirkepov``, and ``vay``. The default choice |