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# Parameter definitions for thorn SummationByParts
# $Header$
KEYWORD norm_type "Type of norm" STEERABLE=always
{
"Diagonal" :: "Diagonal norm"
"Full restricted" :: "Full resricted norm"
} "Diagonal"
KEYWORD operator_type "Type of operator" STEERABLE=always
{
"Minimal Bandwidth" :: "Minimal bandwidth (except for 8-4 which is minimal spectral radius)"
"Optimized" :: "Optimized for performance"
} "Optimized"
BOOLEAN sbp_2nd_deriv "Should the 2nd derivative operator be SBP" STEERABLE=always
{
} "yes"
INT order "Order of accuracy" STEERABLE=always
{
2:8:2 :: ""
} 2
BOOLEAN onesided_outer_boundaries "Use one-sided stencils near outer boundaries" STEERABLE=always
{
} "yes"
BOOLEAN onesided_interpatch_boundaries "Use one-sided stencils near inter-patch boundaries" STEERABLE=always
{
} "yes"
BOOLEAN use_dissipation "Should we add dissipation"
{
} "no"
BOOLEAN use_shiftout "Should we use the boundary_shift_out parameters from CoordBase to shift the dissipation stencils"
{
} "no"
# Note: scaling the dissipation operators with h reduces the order by one.
BOOLEAN scale_with_h "Should we scale the dissipation with the grid spacing h"
{
} "no"
KEYWORD dissipation_type "Type of dissipation operator" STEERABLE=always
{
"Mattson-Svard-Nordstrom" :: "Mattson, Svaerd and Nordstroem type"
"Kreiss-Oliger" :: "Kreiss-Oliger modified near the boundaries"
} "Mattson-Svard-Nordstrom"
REAL epsdis "Dissipation strength" STEERABLE=always
{
*:* :: "Values typical between 0 and 1"
} 0.2
REAL diss_fraction[3] "Fractional size of the transition region for the full restricted dissipation operator"
{
0:0.5 :: ""
} 0.2
REAL h_scaling[3] "Scaling factor for the local grid spacing in the dissipation operators"
{
0:* :: "Positive please"
} 1.0
STRING vars "List of evolved grid functions that should have dissipation added" STEERABLE=always
{
.* :: "Must be a valid list of grid functions"
} ""
BOOLEAN zero_derivs_y "set all derivatives to 0 in the y-direction"
{
} "no"
BOOLEAN zero_derivs_z "set all derivatives to 0 in the z-direction"
{
} "no"
# If you use this parameter be careful. You have to know what you are doing...
BOOLEAN check_grid_sizes "Should we check grid sizes and ghost zones"
{
} "yes"
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