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* Patch from Ian to make interface.ccl parse correctly.diener2012-01-31
| | | | git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@130 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Add a routine to return the size of the boundary region, i.e. the regiondiener2010-03-19
| | | | | | | | where centered finite differences are not performed. This is necessary in order to mix SBP and hard coded stencils in CTGamma. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@120 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Added functionality to set up public grid functions (sbp_dx, sbp_dy, sbp_dz)diener2008-07-14
| | | | | | | | | | | containing the delta's used in the Kreiss-Oliger type dissipation. This is activated with a parameter (use_variable_deltas) and a routine (SBP_DeltaInitial) is scheduled at BASEGRID to set the default values initially. The grid functions can be modified later by a scheduled user function if so desired. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@116 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* (*) Small modifications to use GetBoundarySpecification orkorobkin2008-05-06
| | | | | | | | MultiPatch_GetBoundarySpecification instead of reading shiftout parameters directly from the CoordBase thorn. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@113 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* (*) CCTK_FNAME(get_grid_offsets) -> get_grid_offsetskorobkin2008-05-01
| | | | | | | | | | (+) Added get_grid_offsets to thorn interface as GetFDGridOffsets (+) Added another thorn interface function GetLSHIndexRanges to inquire actual local index ranges (in Fortran notation), which account for both the ghostzones and shiftout values git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@109 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Declare aliased function MultiPatch_GetBboxschnetter2008-04-17
| | | | git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@100 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Make 2nd derivative interface consistent with FiniteDifferencing anddiener2007-10-18
| | | | | | | | | FourierDifferencing, providing a routine to return mixed derivatives obtained by applying two succesive 1st derivatives in different directions. Not tested yet, but compiles. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@87 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Moved definitions of coefficients to a single module in order to only havediener2007-10-16
| | | | | | | | | | | them in one place. Added routines to return coefficients in all the missing cases. Also added routines to return 2 derivatives (only 2-1 and 4-2 so far). The routines calculating derivatives for whole grid functions have not been tested yet, so if you are using them, you will probably want to hold off on updating until I give the clear signal. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@85 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Do not inherit from grid. This is not necessary.schnetter2006-05-13
| | | | | | | | Initialise normmask in basegrid instead of initial. Mark it so that it is not checkpointed. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@68 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Modify the interface to allow for spatial dependence on the upwindingdiener2006-04-13
| | | | | | | | direction for the upwinding derivatives. The directions are specified in a real 3d array with the sign choosing the upwinding direction. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@64 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Declare the aliased function to call the upwinding operators.diener2006-04-10
| | | | git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@63 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Two part update of the restricted full norm dissipation operators. The firstdiener2006-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | part is an optimisation. Previously the coefficients were constructed every time the dissipation was applied. This turned out to have a significant overhead, especially for large domains. Now the coefficients are constructed only once for each patch on each processor and stored. The thorn now uses the aliased functions MultiPatch_GetMap and MultiPatch_GetMaps (provided by thorn MultiPatch) to figure out how many patches are present and which patch is currently being worked on. These dissipation operators will not work unless the MultiPatch thorn is used. Right now this should not be a problem (but can be changed if it is), unless somebody uses dissipation operators outside of the multipatch infrastructure. The second part is an update aimed at making the restricted full norm dissipation operators better behaved on grids with very different number of grid points in different directions. For that reason the parameter: diss_fraction has been made vector valued (of length 3), so that the width of the transition region from the boundary to the interior operators can be controlled separately in the 3 dimensions. Unfortunately this means that any parameter files, that explicitly sets this parameter, will have to be modified. I don't think too many people are using the restricted full dissipation operators yet, so it shouldn't cause too many problems. In additiona new parameter: h_scaling has been introduced. This parameter is also vector valued of length 3 and allows the local grid spacing to be rescaled to more closely resemble the physical grid spacing in any dimension. Note, these changes only affect the non-diagonal dissipation operators. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@61 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Aliased routine for returning the diagonal norm coefficients.diener2006-02-24
| | | | git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@60 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Added a table handle to the derivative interface.diener2005-02-25
| | | | git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@27 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Routines for getting the coefficients for the various derivatives. By ↵diener2005-02-23
| | | | | | request from Bela. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@23 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Implementation of 6th order dissipation operator compatible with the 6-5diener2005-02-08
| | | | | | | | | | | | | | | | | | finite difference operators. Not fully tested yet. The MoL dissipation interface was shamelessly stolen from Eriks Dissipation thorn (in AEIThorns). Things to do: Add a test for the presence of MoLQueryEvolvedRHS (since the use of dissipation is optional, I didn't want to require the presence of this routine). Add compatible dissipation operators to the other finite difference operators. More testing. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@21 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Declare cctkGH as const in Diff_gf and Diff_gvschnetter2004-11-04
| | | | git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@14 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Move scalar product weight mask and its calculation fromschnetter2004-10-25
| | | | | | | MultiPatchWaveToy to SummationByParts. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@12 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Added 4-3 Full restricted norm operators. Added parameter to choose the typediener2004-10-11
| | | | | | | | | of differences (diagonal, full restricted). Added routine to return the coefficient of the norm at the boundary. Added routine to return the mask for the norm calculation. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@10 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* Moved call_derivs.c to call_derivs_name.c. Created a new differncing routinediener2004-10-06
| | | | | | | | | | | | | | (after Erik explained to me that CCTK_ARGUMENTS can be accessed even though they are not passed into the routine) that is called with the variables themselves and not their names. These are provided by the aliased function Diff_gf, so now the x-derivatives of rho can be found with the call: Diff_gv ( cctkGH, 0, rho, drhox ); Also made the determination of the gridspacing use CCTK_DELTA_SPACE (now that I know how to do it) so the routines should now also work with mesh-refinement. git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@4 f69c4107-0314-4c4f-9ad4-17e986b73f4a
* First attempt at a summation by parts finite differencing thorn.diener2004-10-06
git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@2 f69c4107-0314-4c4f-9ad4-17e986b73f4a
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