/
Thorn.m
1431 lines (1029 loc) · 49.8 KB
/
Thorn.m
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(* $Id$ *)
(* Copyright 2004 Sascha Husa, Ian Hinder, Christiane Lechner
This file is part of Kranc.
Kranc is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Kranc is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Kranc; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*)
(* This package provides a set of functions to create the various
parts of a Cactus thorn and assemble them. *)
BeginPackage["Thorn`", "CodeGen`", "CodeGenC`", "CodeGenCactus`", "CalculationFunction`",
"CalculationBoundaries`", "MapLookup`", "KrancGroups`", "Helpers`",
"Errors`", "Kranc`", "CaKernel`"];
(* These functions are externally visible, and comprise the public
interface to this package. *)
CreateSchedule::usage = "Create the content of the schedule.ccl file.";
CreateMakefile::usage = "Create the content of the Cactus make.code.defn file.";
CreateConfiguration::usage = "Create the content of the configuration.ccl file.";
CreateInterface::usage = "Create the content of the interface.ccl file.";
CreateParam::usage = "Create the content of the param.ccl file.";
Quote::usage = ""; (* This should not be in this package *)
CreateThorn::usage = "Create a general Cactus thorn from
a thorn specification structure";
CreateSymmetriesRegistrationSource::usage = "";
CreateMoLRegistrationSource::usage = "";
CreateMoLBoundariesSource::usage = "";
CreateMoLExcisionSource::usage = "";
CreateSetterSource::usage = "";
CreateMPCharSource::usage = "";
CreatePrecompMacros::usage = "";
CreateStartupFile::usage = "";
(* Ensure that we can refer to symbols without the `sym prefix *)
(*$ContextPath = Join[{"sym`"}, $ContextPath];*)
Begin["`Private`"];
(* ------------------------------------------------------------------------
Miscellaneous definitions, could be moved elsewhere
------------------------------------------------------------------------ *)
(* date, user, etc. *)
date[] := ToString[Date[][[1]]] <> "-" <>
ToString[Date[][[2]]] <> "-" <>
ToString[Date[][[3]]]
dateLong[] := ToString[Date[][[1]]] <> "-" <>
ToString[Date[][[2]]] <> "-" <>
ToString[Date[][[3]]] <> " " <>
ToString[Date[][[4]]] <> ":" <>
ToString[Date[][[5]]] <> ":" <>
ToString[Date[][[6]]];
(* user[] := ToString[<< "!whoami"]; *)
user[] := Environment["USER"];
whoWhen[lang_] := Module[{com1, com2},
com1 = "UNRECOGNIZED LANGUAGE";
com2 = "UNRECOGNIZED LANGUAGE";
If[(lang == "C" || lang == "c"),
com1 = "/* "; com2 = " */";
];
If[(lang == "Fortran" || lang == "FORTRAN" || lang == "F90" || lang == "F95"),
com1 = "!"; com2 = "";
];
If[(lang == "F77"),
com1 = "C"; com2 = "";
];
If[(lang == "shell" || lang == "CCL"),
com1 = "#"; com2 = "";
];
(* Do not show the date, and do not use $Id$, since they introduce
spurious changes and lead to unnecessary recompilation *)
(*
{com1 <> " File produced by user " <> user[] <> com2 <> "\n" <>
com1 <> " Produced with Mathematica Version " <> ToString[$Version] <> com2 <> "\n\n"<>
com1 <> " Mathematica script written by Ian Hinder and Sascha Husa" <> com2 <> "\n\n"}
*)
(* Do not show the user and the Mathematica version, since they also
introduce spurious changes and lead to unnecessary recompilation *)
{com1 <> " File produced by Kranc" <> com2 <> "\n\n"}
];
(* ------------------------------------------------------------------------
Makefile
------------------------------------------------------------------------ *)
(* Return a CodeGen block representing a makefile which refers to the
list of filenames sourceFiles *)
CreateMakefile[sourceFiles_] :=
{whoWhen["shell"],
"SRCS = ", Map[{#, " "} &, sourceFiles], "\n"};
(* ------------------------------------------------------------------------
Parameter file
------------------------------------------------------------------------ *)
(* parameterFileSpec = {Implementations -> {}, NewParameters -> {}}
implementation = {Name -> "",
UsedParameters (optional) -> {spec1, spec2, ...},
ExtendedParameters (optional) -> {spec1, spec2, ...}}
(optional) allowedValue = {Value -> "", Description -> ""}
parameter spec = {Name -> "", Type -> "", Default -> "",
Description -> "", Visibility -> "private",
AllowedValues -> {...}} *)
(* Return a CodeGen block which represents the quoted value of x *)
Quote[x_] := {"\"", x, "\""};
(* To be used for parameters; will quote it if it is a keyword *)
renderValue[type_, value_] :=
If[type == "KEYWORD",
Quote[value],
If[type == "CCTK_REAL",
ToString[CForm[value]],
value]];
(* Return a block defining a parameter with the given
parameterSpec (defined above). This is used for defining new
parameters, as well as extending existing ones. *)
parameterBlock[spec_] :=
{lookup[spec, Type], " ",
lookup[spec, Name], " ",
Quote[lookup[spec, Description]],
If[mapContains[spec, AccumulatorBase],
{" ACCUMULATOR-BASE=", lookup[spec, AccumulatorBase]},
{}],
If[mapContains[spec, Steerable],
{" STEERABLE=",Switch[lookup[spec, Steerable],
Never,"NEVER",
Always,"ALWAYS",
Recover, "RECOVER",
_,ThrowError["Unknown 'Steerable' entry in parameter " <> ToString[lookup[spec, Name]] <> ": " <> ToString[lookup[spec, Steerable]]]]},
{}],
"\n",
SuffixedCBlock[
(* For each allowed value of the parameter specified in the spec,
create a line with the value and the description *)
Map[{renderValue[lookup[spec,Type], lookup[#, Value]], " :: ",
Quote[lookup[#, Description]], "\n"} &,
lookupDefault[spec, AllowedValues, {}]],
(* Output the line describing the default value of the parameter *)
renderValue[lookup[spec,Type], lookup[spec, Default]]],
"\n"};
(* Given a particular implementation, return a CodeGen block defining
which parameters are used or extended from that implementation *)
parameterImplementationSection[spec_] :=
{"\nshares: ", lookup[spec, Name], "\n", "\n",
(* For each used parameter in the spec, output a line indicating
that it is used *)
Map[{"USES ", lookup[#, Type], " ", lookup[#, Name], "\n"} &,
lookupDefault[spec, UsedParameters, {}]], "\n",
(* For each extended parameter in the spec, output a parameter
block containing the specified extension prefixed with EXTENDS *)
Map[{"EXTENDS ", parameterBlock[#], "\n"} &,
lookupDefault[spec, ExtendedParameters, {}]]};
(* Given a parameterFileSpec structure, return a CodeGen block for the
param.ccl file *)
CreateParam[spec_] :=
{whoWhen["CCL"],
(* For each implementation defined in the spec, output a block
which declares which parameters are used and extended by this
implementation *)
Map[parameterImplementationSection,
lookupDefault[spec, Implementations, {}]],
(* For each new parameter being defined by this implementation,
output a parameter block for it *)
Map[{lookup[#, Visibility], ":\n", parameterBlock[#]} &,
lookupDefault[spec, NewParameters, {}]]};
(* ------------------------------------------------------------------------
Configuration file
------------------------------------------------------------------------ *)
Options[CreateConfiguration] = ThornOptions;
CreateConfiguration[opts:OptionsPattern[]] :=
{whoWhen["CCL"],
"REQUIRES GenericFD\n",
If[OptionValue[UseVectors],
"REQUIRES LoopControl\n", "OPTIONAL LoopControl\n{\n}\n"],
If[OptionValue[UseDGFE], "REQUIRES Boost CPPUtils FDCore HRSCCore\n", {}],
If[OptionValue[UseOpenCL], "REQUIRES OpenCL OpenCLRunTime\n", {}],
If[OptionValue[UseVectors], "REQUIRES Vectors\n", {}],
If[OptionValue[UseCaKernel], CaKernelConfigurationCLL[], {}]
};
(* ------------------------------------------------------------------------
Interface file
------------------------------------------------------------------------ *)
(* The following "group" structure defines a Cactus group of variables
to be included in an interface.ccl file.
group:
{Name -> "", VariableType -> "", Timelevels -> 2, GridType -> "GF",
Comment -> "", Visibility -> "public", Tags -> {tag1, tag2, ...},
Variables -> {phi, h11, ...}}
A 'tag' is of the form {"tensortypealias" -> "Scalar"}
*)
(* Given the specification of a group structure, return a CodeGen
block for the interface.ccl file to define that group *)
interfaceGroupBlock[spec_] :=
{lookup[spec, Visibility], ":\n",
lookup[spec, VariableType], " ", lookup[spec, Name],
" type=", lookup[spec,GridType],
" timelevels=", lookup[spec, Timelevels],
If[mapContains[spec,Tags], {" tags='", interfaceTags[lookupDefault[spec,Tags, {}]], "'"}, ""],
If[mapContains[spec,Dim], {" dim=", lookup[spec,Dim] }, ""],
If[mapContains[spec,Size], {" size=", lookup[spec,Size] }, ""],
"\n",
SuffixedCBlock[{CommaNewlineSeparated[lookup[spec, Variables]],"\n"},
"\"" <> lookup[spec, Comment] <> "\""]};
interfaceTag[tagName_String -> tagValue_String] :=
tagName <> "=" <> "\"" <> tagValue <> "\"";
interfaceTag[tagName_String -> tagValue_?IntegerQ] :=
tagName <> "=" <> ToString[tagValue];
interfaceTag[tagName_String -> tagValue_?NumberQ] :=
tagName <> "=" <> ToString[N[tagValue, 20]];
interfaceTags[tags_] :=
SpaceSeparated[Map[interfaceTag, tags]];
(* Function aliasing *)
(* A definition of an aliased function is:
{Name -> "MoLRegisterEvolvedGroup",
Type -> "CCTK_INT",
ArgString -> "CCTK_INT IN EvolvedIndex, CCTK_INT IN RHSIndex"}
*)
usesFunction[f_] :=
If[lookup[f, Type] == "SUBROUTINE",
{lookup[f, Type], " ", lookup[f, Name], "(", lookup[f,ArgString], ")\n",
"USES FUNCTION ", lookup[f, Name], "\n\n"},
{lookup[f, Type], " FUNCTION ", lookup[f, Name], "(", lookup[f,ArgString], ")\n",
"USES FUNCTION ", lookup[f, Name], "\n\n"}
];
providesFunction[f_] :=
If[lookup[f, Type] == "SUBROUTINE",
{lookup[f, Type], " ", lookup[f, Name], "(", lookup[f,ArgString], ")\n",
"PROVIDES FUNCTION ", lookup[f, Name], "\n\n"},
{lookup[f, Type], " FUNCTION ", lookup[f, Name], "(", lookup[f,ArgString], ")\n",
"PROVIDES FUNCTION ", lookup[f, Name], "\n\n"}
];
(* Given the name of an implementation, a list of implementation names
that we inherit from, a list of include files to mention, and a
list of group structures as defined above, return a CodeGen block
representing the interface.ccl file. As an optional argument, one
can specify Friends -> {list of implementations we want as
friends}. Can also have UsesFunction -> {functions}*)
CreateInterface[implementation_, inheritedImplementations_, includeFiles_,
groups_, opts___] :=
{whoWhen["CCL"],
"implements: ", implementation, "\n\n",
"inherits: ", SpaceSeparated[inheritedImplementations], "\n\n",
If[mapContains[{opts}, Friends],
{"friend: ", SpaceSeparated[lookup[{opts}, Friends]]},{}],
"\n\n",
Map[{"USES INCLUDE: ", #, "\n"} &, includeFiles],
"\n",
Map[usesFunction, lookupDefault[{opts}, UsesFunctions, {}]],
Map[providesFunction, lookupDefault[{opts}, ProvidesFunctions, {}]],
NewlineSeparated[Map[FlattenBlock[interfaceGroupBlock[#]] &, groups]]};
(* ------------------------------------------------------------------------
Scheduling
------------------------------------------------------------------------ *)
(* storage group
(represents the fact that we want to allocate storage for a Cactus
variable group with the given number of timelevels)
{Group -> "admbase::metric", Timelevels -> 3,
Conditional -> {Parameter -> "", Value -> ""},
Conditionals -> {{Parameter -> "", Value -> ""}},
Conditional -> {Textual -> "CCTK_EQUALS(name,value)"}}
A "conditional" structure looks like this: {Parameter -> "", Value -> ""}
scheduled function: (a function to be scheduled at a particular point)
{Name -> "ADM_BSSN_CalcRHS_fn", SchedulePoint -> "in POSTINITIAL before ExternalLapse",
Language -> "C", Comment -> "",
(optional) SynchronizedGroups -> {ADM_BSSN_gamma, ...},
(optional) Options -> {"meta", "level", ...},
(optional) StorageGroups -> {Group -> "mygroup", Timelevels -> 1},
(optional) Conditional -> {Parameter -> "", Value -> ""},
(optional) Conditionals -> {{Parameter -> "", Value -> ""}}}
scheduled group:
{... sameish}
*)
(* Given a storage group structure defined above, return a CodeGen
structure for inclusion in the schedule.ccl file to allocate
storage for this group. *)
groupStorage[spec_] :=
If[mapContains[spec, MaxTimelevels],
Flatten[Table[{"if (", lookup[spec, MaxTimelevels], " == ", i, ")\n",
"{\n",
" STORAGE: ", lookup[spec, Group], "[", i, "]\n",
"}\n"}, {i, 1, lookup[spec, Timelevels]}], 1],
{"STORAGE: ", lookup[spec, Group], "[", lookup[spec, Timelevels], "]\n"}]
(* Given a function scheduling specification as defined above, return
a CodeGen block to schedule the function for the schedule.ccl file *)
scheduleUnconditionalFunction[spec_] :=
{"schedule ", lookup[spec, Name], " ", lookup[spec,SchedulePoint], "\n",
SuffixedCBlock[
{If[lookup[spec, Language] == "None", "# no language specified\n",
"LANG: " <> lookup[spec, Language] <> "\n"],
If[lookupDefault[spec, Options, ""] != "",
"OPTIONS: " <> lookup[spec, Options] <> "\n",
""],
(* Insert a SYNC line for each group we want to synchronize. *)
Map[{"SYNC: ", #, "\n"} &, lookupDefault[spec, SynchronizedGroups, {}]],
Map[{"TRIGGERS: ", #, "\n"} &, lookupDefault[spec, TriggerGroups, {}]],
(* TODO: Expect a set of keyword/value pairs instead of a string *)
If[lookupDefault[spec, Tags, ""] != "",
"TAGS: " <> lookup[spec, Tags] <> "\n",
""],
Map[{"READS: ", #, "\n"} &, lookupDefault[spec, RequiredGroups, {}]],
Map[{"WRITES: ", #, "\n"} &, lookupDefault[spec, ProvidedGroups, {}]],
(* Insert a storage block for each group we want to allocate
storage for *)
Map[groupStorage, lookupDefault[spec, StorageGroups, {}]]},
Quote[lookup[spec, Comment]]]};
(* Handle the aspect of scheduling the function conditionally *)
scheduleFunction[spec_] :=
Module[{condition, conditions, parameter, value, u, v, w, x},
u = scheduleUnconditionalFunction[spec];
v = If[mapContains[spec, Conditional],
(* Output the conditional structure *)
condition = lookup[spec, Conditional];
If[mapContains[condition, Textual],
ConditionalOnParameterTextual[lookup[condition, Textual], u],
If[mapContains[condition, Parameter],
parameter = lookup[condition, Parameter];
value = lookup[condition, Value];
ConditionalOnParameter[parameter, value, u],
If[condition != {},
ThrowError["Unrecognized conditional structure", condition],
u]]],
u];
w = If[mapContains[spec, Conditionals],
(* Output the conditionals structure *)
conditions = lookup[spec, Conditionals];
Fold[Function[{x, condition},
If[mapContains[condition, Textual],
ConditionalOnParameterTextual[lookup[condition, Textual], x],
If[mapContains[condition, Parameter],
parameter = lookup[condition, Parameter];
value = lookup[condition, Value];
ConditionalOnParameter[parameter, value, x],
If[condition != {},
ThrowError["Unrecognized conditional structure", condition],
x]],
x]],
v, conditions],
v];
w];
(* Schedule a schedule group. Use a slightly dirty trick; given that
the structure is identical to that for a function except with the
word "GROUP" added before the function name, just use the existing
function. *)
scheduleGroup[spec_] :=
scheduleFunction[mapReplace[spec, Name, "group " <> lookup[spec, Name]]];
(* Taking a list of group storage specifications for global storage,
and lists of scheduled function and scheduled group structures,
return a CodeGen block representing a schedule.ccl file. *)
CreateSchedule[globalStorageGroups_, scheduledGroups_, scheduledFunctions_] :=
{whoWhen["CCL"],
Map[SeparatedBlock[groupStorage[#]] &, globalStorageGroups],
Map[SeparatedBlock[scheduleFunction[#]] &, scheduledFunctions],
Map[SeparatedBlock[scheduleGroup[#]] &, scheduledGroups]};
(* ------------------------------------------------------------------------
Setter
------------------------------------------------------------------------ *)
(* calculation = {Name -> "ClassicADM_Setter",
optional Before -> {functions},
optional After -> {functions},
Shorthands -> {gInv11, ...},
GridFunctions -> {g11rhs, K11},
CollectList -> {hInv11, hInv22, ...},
optional DeclarationIncludes -> {include file list},
optional LoopPreIncludes -> {include file list},
Equations -> {{K11_rhs -> 2 A K11, ...}...}} *)
(* Given a list of Calculation structures as defined above, create a
CodeGen representation of a source file that defines a function for
each Calculation. *)
Options[CreateSetterSource] = ThornOptions;
CreateSetterSource[calcs_, debug_, include_,
opts:OptionsPattern[]] :=
Module[{calc = First[calcs],bodyFunction},
If[!MatchQ[include, _List],
ThrowError["CreateSetterSource: Include should be a list but is in fact " <> ToString[include]]];
SetDataType[If[OptionValue[UseVectors],"CCTK_REAL_VEC", "CCTK_REAL"]];
{whoWhen[CodeGenC`SOURCELANGUAGE],
"#define KRANC_" <> ToUpperCase[CodeGenC`SOURCELANGUAGE] <> "\n\n",
If[CodeGenC`SOURCELANGUAGE == "C",
{IncludeSystemFile["assert.h"],
IncludeSystemFile["math.h"],
IncludeSystemFile["stdio.h"],
IncludeSystemFile["stdlib.h"],
IncludeSystemFile["string.h"]},
{"\n"}
],
Map[IncludeFile, Join[{"cctk.h", "cctk_Arguments.h", "cctk_Parameters.h",
(*"precomputations.h",*) "GenericFD.h", "Differencing.h"},
include,
{"cctk_Loop.h", "loopcontrol.h"},
If[OptionValue[UseOpenCL], {"OpenCLRunTime.h"}, {}],
If[OptionValue[UseVectors], {"vectors.h"}, {}]]],
CalculationMacros[OptionValue[UseVectors]],
(* For each function structure passed, create the function and
insert it *)
CalculationBoundariesFunction[First[calcs]],
bodyFunction = DefineFunction[lookup[calc,Name]<>"_Body", "static void", "cGH const * restrict const cctkGH, int const dir, int const face, CCTK_REAL const normal[3], CCTK_REAL const tangentA[3], CCTK_REAL const tangentB[3], int const imin[3], int const imax[3], int const n_subblock_gfs, CCTK_REAL * restrict const subblock_gfs[]",
{
"DECLARE_CCTK_ARGUMENTS;\n",
"DECLARE_CCTK_PARAMETERS;\n\n",
#
}] &;
calc = Join[calc, {BodyFunction -> bodyFunction,
CallerFunction -> True,
LoopFunction -> (GenericGridLoop[lookup[calc,Name],#,opts] &),
GFAccessFunction -> ({#,"[","index","]"} &),
InitFDVariables -> InitialiseFDVariables[OptionValue[UseVectors]],
MacroPointer -> True}];
CreateCalculationFunction[calc, opts]}];
(* ------------------------------------------------------------------------
Symmetries Registration
------------------------------------------------------------------------ *)
(* Symmetries registration spec = {FullName -> "impl::GFname",
Sym -> {symX, symY, symZ}} *)
SymmetriesBlock[spec_] :=
Module[{i, KrancDim},
If[!MatchQ[spec, {FullName -> _String, Sym -> {_,_,_}}],
ThrowError["SymmetriesBlock: Expecting a symmetry registration spec but got ", spec]];
KrancDim = 3;
sym = lookup[spec, Sym];
{Table["sym[" <> ToString[i - 1] <> "] = " <>
ToString@sym[[i]] <> ";\n", {i, 1, KrancDim}],
"SetCartSymVN(cctkGH, sym, \"" <> lookup[spec, FullName] <> "\");\n\n"
}
];
(* syms is a list of rules mapping gridfunctions to their symmetry structures *)
calcSymmetry[gf_, syms_] :=
Module[{},
If[mapContains[syms, gf],
Return[lookup[syms,gf]],
(* FIXME: We are defaulting to scalar symmetries if no information is
available. This shouldn't happen, but I am bypassing this check
temporarily. *)
Print["WARNING: defaulting to symmetries of a scalar for "<>ToString[gf]];
Return[{1,1,1}]]];
(* This function guesses the symmetries based on component names as we
have not been given them *)
calcSymmetry[gf_] := Module[{sym, q, string},
sym = {1, 1, 1}; (* default *)
string = ToString@gf;
While[IntegerQ[q = ToExpression@StringTake[string, -1]],
Module[{},
sym[[q]] = -sym[[q]];
string = StringDrop[string, -1]
]
];
sym
];
(* Compatibility function to be called by KrancThorns because it
doesn't understand reflection symmetries *)
CreateSymmetriesRegistrationSource[thornName_, implementationName_, GFs_, debug_] :=
CreateSymmetriesRegistrationSource[thornName, implementationName, GFs, False, debug];
(* Given a symmetries registration structure as defined above, return a
C CodeGen structure of a source file which will register the symmetries. *)
CreateSymmetriesRegistrationSource[thornName_, implementationName_, GFs_, reflectionSymmetries_, debug_] :=
Module[{spec, j, lang, tmp},
If[debug,
Print["Registering Symmetries for: ", GFs];
];
lang = CodeGenC`SOURCELANGUAGE;
CodeGenC`SOURCELANGUAGE = "C";
spec = Table[{FullName -> implementationName <> "::" <> ToString@GFs[[j]],
Sym -> If[reflectionSymmetries === False,
calcSymmetry[GFs[[j]]],
calcSymmetry[GFs[[j]], Union@reflectionSymmetries]]}, {j, 1, Length@GFs}];
tmp = {whoWhen["C"],
Map[IncludeFile,
{"cctk.h", "cctk_Arguments.h", "cctk_Parameters.h", "Symmetry.h"}],
DefineCCTKFunction[ thornName <> "_RegisterSymmetries", "void",
{CommentedBlock["array holding symmetry definitions",
"CCTK_INT sym[3];\n\n"],
CommentedBlock["Register symmetries of grid functions",
Map[SymmetriesBlock, spec]]}
]
};
CodeGenC`SOURCELANGUAGE = lang;
tmp
];
(* ------------------------------------------------------------------------
MoL Registration
------------------------------------------------------------------------ *)
(* MoL registration = {EvolvedGFs -> {h11, ...}, PrimitiveGFs -> {trK, ...},
BaseImplementation -> "ADMBase", ThornName -> "ADMMoL"} *)
(* Given a MoL registration structure as defined above, return a
CodeGen structure of a source file which will register the
variables given with MoL. *)
CreateMoLRegistrationSource[spec_, debug_] :=
Module[{tmp, lang},
If[debug,
Print["Registering for MoL:"];
Print[];
Print[" Evolved Gridfunctions: ", lookup[spec, EvolvedGFs] ];
Print[" Primitive Gridfunctions: ", lookup[spec, PrimitiveGFs] ];
];
lang = CodeGenC`SOURCELANGUAGE;
CodeGenC`SOURCELANGUAGE= "C";
tmp = {whoWhen["C"],
Map[IncludeFile,
{"cctk.h", "cctk_Arguments.h", "cctk_Parameters.h"}],
DefineCCTKFunction[lookup[spec,ThornName] <> "_RegisterVars", "void",
{DefineVariable["ierr", "CCTK_INT", "0"],
CommentedBlock["Register all the evolved grid functions with MoL",
(* FIXME: We should clarify exactly what should happen with the implementation names here *)
(* OK. I think that the group name should be passed in qualified, as that is all that we can do. *)
Map[{"ierr += MoLRegisterEvolved(CCTK_VarIndex(\"", #, "\"), CCTK_VarIndex(\"",
#, "rhs\"));\n"} &,
lookup[spec, EvolvedGFs]]],
CommentedBlock["Register all the evolved Array functions with MoL",
Map[{"ierr += MoLRegisterEvolved(CCTK_VarIndex(\"", #, "\"), CCTK_VarIndex(\"",
#, "rhs\"));\n"} &,
lookup[spec, EvolvedArrays]]],
(* Registering all the remaining variables as constrained is
just plain wrong. Read the MoL documentation. It is also not
harmless, I think. *)
(*CommentedBlock["Register all the primitive grid functions with MoL",
(* We should check ierr *)
Map[{"ierr += MoLRegisterConstrained(CCTK_VarIndex(\"",
#, "\"));\n"} &,
lookup[spec, PrimitiveGFs]]], *)
"return;\n"}]};
CodeGenC`SOURCELANGUAGE = lang;
tmp
];
(* ------------------------------------------------------------------------
MoL Boundaries
------------------------------------------------------------------------ *)
(* boundaries spec = {Groups -> {trK, h11, ...},
BaseImplementation -> "ADMBase", ThornName -> "ADMMoL"} *)
(* the boundary treatment is split into 3 steps:
1. excision
2. symmetries
3. "other" boundary conditions, e.g. flat, radiative
To simplify scheduling, testing, etc. the 3 steps are currently applied in separate functions!*)
(* boundary conditions may have to be applied per GF or goup ; per group
should be more efficient, but sometimes there will be a GF-dependent parameter,
e.g. for radiation BCs *)
cleanCPP[x_] := Map[StringReplace[FlattenBlock[#], " #" -> "#"]&, x];
(* Given a BC registration structure as defined above, return a
CodeGen structure of a source file which does nothing yet! *)
CreateMoLBoundariesSource[spec_] :=
Module[{gfs, groups, unqualifiedGroups, tmp, lang},
gfs = lookup[spec, EvolvedGFs];
groups = lookup[spec, Groups];
unqualifiedGroups = Map[unqualifiedGroupName, lookup[spec, Groups]];
listBCparfileEntry[gforgroup_] := Module[{prefix, unqualName},
(* include a comment block with template parameter file entries *)
prefix = "#$bound$#" <> lookup[spec, ThornImplementation] <> "::";
unqualName = unqualifiedGroupName@ToString@gforgroup;
{
prefix <> unqualName <> "_bound = \"skip\"\n",
prefix <> unqualName <> "_bound_speed = 1.0\n",
prefix <> unqualName <> "_bound_limit = 0.0\n",
prefix <> unqualName <> "_bound_scalar = 0.0\n\n"
}];
(*
symmetryBCGroup[group_] := Module[{boundpar, fullgroupname},
(* symmetry boundary conditions *)
fullgroupname = qualifyGroupName[ToString@group, lookup[spec, BaseImplementation]];
{"\n",
" ierr = CartSymGN(cctkGH, \"" <> fullgroupname <> "\");\n",
" if (ierr < 0)\n",
" CCTK_WARN(0, \"Failed to apply symmetry BC for " <> fullgroupname <> "!\");\n"}
];
*)
trivialBCGroup[group_] := Module[{boundpar, fullgroupname},
(* boundary conditions that do not have parameters besides their name *)
boundpar = unqualifiedGroupName@group <> "_bound";
fullgroupname = qualifyGroupName[ToString@group, lookup[spec, BaseImplementation]];
{"\n",
"if (CCTK_EQUALS(" <> boundpar <> ", \"none\" ) ||\n",
" CCTK_EQUALS(" <> boundpar <> ", \"static\") ||\n",
" CCTK_EQUALS(" <> boundpar <> ", \"flat\" ) ||\n",
" CCTK_EQUALS(" <> boundpar <> ", \"zero\" ) )\n",
"{\n",
" ierr = Boundary_SelectGroupForBC(cctkGH, CCTK_ALL_FACES, 1, -1,\n",
" \"" <> fullgroupname <> "\", " <> boundpar <> ");\n",
" if (ierr < 0)\n",
" CCTK_WARN(0, \"Failed to register "<>boundpar<>" BC for "<>fullgroupname<>"!\");\n",
"}\n"}];
trivialBCGF[gf_] := Module[{boundpar, fullgfname},
(* boundary conditions that do not have parameters besides their name *)
boundpar = unqualifiedGroupName@ToString@gf <> "_bound";
fullgfname = ToString@gf;
{"\n",
"if (CCTK_EQUALS(" <> boundpar <> ", \"none\" ) ||\n",
" CCTK_EQUALS(" <> boundpar <> ", \"static\") ||\n",
" CCTK_EQUALS(" <> boundpar <> ", \"flat\" ) ||\n",
" CCTK_EQUALS(" <> boundpar <> ", \"zero\" ) )\n",
"{\n",
" ierr = Boundary_SelectVarForBC(cctkGH, CCTK_ALL_FACES, 1, -1,\n",
" \"" <> fullgfname <> "\", " <> boundpar <> ");\n",
" if (ierr < 0)\n",
" CCTK_WARN(0, \"Failed to register "<>boundpar<>" BC for "<>fullgfname<>"!\");\n",
"}\n"}];
radiationBCGroup[group_] := Module[{boundpar, fullgroupname, myhandle},
(* a simple radiation boundary condition *)
boundpar = unqualifiedGroupName@ToString@group <> "_bound";
fullgroupname = qualifyGroupName[ToString@group, lookup[spec, BaseImplementation]];
myhandle = "handle_" <> boundpar;
{"\n",
"if (CCTK_EQUALS(" <> boundpar <> ", \"radiative\"))\n",
"{\n /* select radiation boundary condition */\n ",
DefineVariable[myhandle, "static CCTK_INT", "-1"],
" if ("<>myhandle<>" < 0) "<>myhandle<>" = Util_TableCreate(UTIL_TABLE_FLAGS_CASE_INSENSITIVE);\n",
" if ("<>myhandle<>" < 0) CCTK_WARN(0, \"could not create table!\");\n",
" if (Util_TableSetReal("<>myhandle<>" , "<> boundpar <>"_limit, \"LIMIT\") < 0)\n",
" CCTK_WARN(0, \"could not set LIMIT value in table!\");\n",
" if (Util_TableSetReal("<>myhandle<>" ," <> boundpar <> "_speed, \"SPEED\") < 0)\n",
" CCTK_WARN(0, \"could not set SPEED value in table!\");\n",
"\n",
" ierr = Boundary_SelectGroupForBC(cctkGH, CCTK_ALL_FACES, 1, "<>myhandle<>", \n",
" \"" <> fullgroupname <> "\", \"Radiation\");\n\n",
" if (ierr < 0)\n",
" CCTK_WARN(0, \"Failed to register Radiation BC for "<>fullgroupname<>"!\");\n",
"\n}\n"}];
radiationBCGF[gf_] := Module[{boundpar, fullgfname, myhandle},
(* a simple radiation boundary condition *)
boundpar = unqualifiedGroupName@ToString@gf <> "_bound";
fullgfname = ToString@gf;
myhandle = "handle_" <> boundpar;
{"\n",
"if (CCTK_EQUALS(" <> boundpar <> ", \"radiative\"))\n",
"{\n /* select radiation boundary condition */\n ",
DefineVariable[myhandle, "static CCTK_INT", "-1"],
" if ("<>myhandle<>" < 0) "<>myhandle<>" = Util_TableCreate(UTIL_TABLE_FLAGS_CASE_INSENSITIVE);\n",
" if ("<>myhandle<>" < 0) CCTK_WARN(0, \"could not create table!\");\n",
" if (Util_TableSetReal("<>myhandle<>" , "<> boundpar <>"_limit, \"LIMIT\") < 0)\n",
" CCTK_WARN(0, \"could not set LIMIT value in table!\");\n",
" if (Util_TableSetReal("<>myhandle<>" ," <> boundpar <> "_speed, \"SPEED\") < 0)\n",
" CCTK_WARN(0, \"could not set SPEED value in table!\");\n",
"\n",
" ierr = Boundary_SelectVarForBC(cctkGH, CCTK_ALL_FACES, 1, "<>myhandle<>", \n",
" \"" <> fullgfname <> "\", \"Radiation\");\n\n",
" if (ierr < 0)\n",
" CCTK_WARN(0, \"Failed to register Radiation BC for "<>fullgfname<>"!\");\n",
"\n}\n"}];
scalarBCGroup[group_] := Module[{boundpar, fullgroupname, myhandle},
(* simple dirichlet boundary condition *)
boundpar = unqualifiedGroupName@group <> "_bound";
fullgroupname = qualifyGroupName[ToString@group, lookup[spec, BaseImplementation]];
myhandle = "handle_" <> boundpar;
{"\n",
"if (CCTK_EQUALS(" <> boundpar <> ", \"scalar\"))\n",
"{\n /* select scalar boundary condition */\n ",
DefineVariable[myhandle, "static CCTK_INT", "-1"],
" if ("<>myhandle<>" < 0) "<>myhandle<>" = Util_TableCreate(UTIL_TABLE_FLAGS_CASE_INSENSITIVE);\n",
" if ("<>myhandle<>" < 0) CCTK_WARN(0, \"could not create table!\");\n",
" if (Util_TableSetReal("<>myhandle<>" ," <> boundpar <> "_scalar, \"SCALAR\") < 0)\n",
" CCTK_WARN(0, \"could not set SCALAR value in table!\");\n",
"\n",
" ierr = Boundary_SelectGroupForBC(cctkGH, CCTK_ALL_FACES, 1, "<>myhandle<>", \n",
" \"" <> fullgroupname <> "\", \"scalar\");\n\n",
" if (ierr < 0)\n",
" CCTK_WARN(0, \"Failed to register Scalar BC for "<>fullgroupname<>"!\");\n",
"\n}\n"}];
scalarBCGF[gf_] := Module[{boundpar, fullgfname, myhandle},
(* simple dirichlet boundary condition *)
boundpar = unqualifiedGroupName@ToString@gf <> "_bound";
fullgfname = ToString@gf;
myhandle = "handle_" <> boundpar;
{"\n",
"if (CCTK_EQUALS(" <> boundpar <> ", \"scalar\"))\n",
"{\n /* select scalar boundary condition */\n ",
DefineVariable[myhandle, "static CCTK_INT", "-1"],
" if ("<>myhandle<>" < 0) "<>myhandle<>" = Util_TableCreate(UTIL_TABLE_FLAGS_CASE_INSENSITIVE);\n",
" if ("<>myhandle<>" < 0) CCTK_WARN(0, \"could not create table!\");\n",
" if (Util_TableSetReal("<>myhandle<>" ," <> boundpar <> "_scalar, \"SCALAR\") < 0)\n",
" CCTK_WARN(0, \"could not set SCALAR value in table!\");\n",
"\n",
" ierr = Boundary_SelectVarForBC(cctkGH, CCTK_ALL_FACES, 1, "<>myhandle<>", \n",
" \"" <> fullgfname <> "\", \"scalar\");\n\n",
" if (ierr < 0)\n",
" CCTK_WARN(0, \"Error in registering Scalar BC for "<>fullgfname<>"!\");\n",
"\n}\n"}];
lang = CodeGenC`SOURCELANGUAGE;
CodeGenC`SOURCELANGUAGE = "C";
tmp = {whoWhen["C"],
Map[IncludeFile,
{"cctk.h", "cctk_Arguments.h", "cctk_Parameters.h",
"cctk_Faces.h", "util_Table.h", "Symmetry.h"}],
{"\n\n",
"/* the boundary treatment is split into 3 steps: */\n",
"/* 1. excision */\n",
"/* 2. symmetries */\n",
"/* 3. \"other\" boundary conditions, e.g. radiative */\n\n",
"/* to simplify scheduling and testing, the 3 steps */\n",
"/* are currently applied in separate functions */\n\n"},
cleanCPP@DefineCCTKFunction[lookup[spec,ThornName] <> "_CheckBoundaries",
"void",
{"return;\n"}],
cleanCPP@DefineCCTKFunction[lookup[spec,ThornName] <> "_SelectBoundConds",
"void",
{DefineVariable["ierr", "CCTK_INT", "0"],
(*
Map[symmetryBCGroup, groups],
*)
Map[trivialBCGroup, groups],
Map[trivialBCGF, gfs],
Map[radiationBCGroup, groups],
Map[radiationBCGF, gfs],
Map[scalarBCGroup, groups],
Map[scalarBCGF, gfs],
"return;\n"
}],
"\n\n\n",
"/* template for entries in parameter file:\n",
Map[listBCparfileEntry, unqualifiedGroups],
Map[listBCparfileEntry, gfs],
"*/\n\n"
};
CodeGenC`SOURCELANGUAGE = lang;
tmp
];
CreateMoLExcisionSource[spec_] :=
Module[{gfs, currentlang, body, excisionExtrap},