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(* Copyright 2012 Ian Hinder
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
*)
BeginPackage["CaKernel`", {"Errors`", "Helpers`", "Kranc`", "CodeGenCactus`", "MapLookup`",
"Calculation`", "CodeGen`"}];
CaKernelCCL;
CaKernelCode;
CaKernelEpilogue;
Begin["`Private`"];
DefFn[
variableBlock[var_, intent_String] :=
CCLBlock["CCTK_CUDA_KERNEL_VARIABLE", "", {"cached" -> "yes", "intent" -> intent}, {var,"\n"}, ToString[var]]];
DefFn[
variableBlocks[calc_] :=
Module[
{in,out,all,inOnly,outOnly,inOut},
in = InputGridFunctions[calc];
out = OutputGridFunctions[calc];
all = Union[in,out];
inOnly = Complement[in, out];
outOnly = Complement[out, in];
inOut = Intersection[in,out];
Riffle[
Map[variableBlock[#, Which[MemberQ[inOnly, #], "in",
MemberQ[outOnly, #], "out",
MemberQ[inOut, #], "inout",
True,ThrowError["Unable to determine use of variable "<>ToString[#]]]] &, all],
"\n"]]];
DefFn[
kernelCCLBlock[calc_] :=
CCLBlock["CCTK_CUDA_KERNEL", lookup[calc, Name],
{"TYPE" -> "gpu_cuda/3dblock",
"STENCIL" -> "0,0,0,0,0,0",
"TILE" -> "16,16,16",
"SHARECODE" -> "yes"},
variableBlocks[calc]]];
DefFn[CaKernelCCL[calcs_List] :=
Module[
{},
Map[kernelCCLBlock, calcs]]];
DefFn[codeBlock[macro_String, contents:CodeGenBlock] :=
Module[
{},
{macro<>"_Begin_s", "\n",
IndentBlock[{contents,"\n"}],
macro<>"_End_s","\n"}]];
DefFn[CaKernelCode[calc_List] :=
Module[
{kernel = "CAKERNEL_"<>GetCalculationName[calc]},
codeBlock[
kernel,
codeBlock[
kernel<>"_Computations",
Map[makeEquation[calc, #] &, GetEquations[calc]]]]]];
DefFn[
makeEquation[calc_List, eq_Rule] :=
Module[
{gfs, eq2},
gfs = AllGridFunctions[calc];
Print["eq = ", eq];
Print["gfs = ", gfs];
eq2 = eq /. Map[# -> ToString[#,CForm]<>"(0,0,0)" &, gfs];
StringReplace[FlattenBlock[{"// ", ToString[eq,InputForm], "\n",
ToString[eq2[[1]], CForm], " = ", ToString[eq2[[2]],CForm], "\n\n"}],"\""->""]]];
DefFn[CaKernelEpilogue[] :=
"
############################################################
#CAKERNEL AUTO GENERATED PART. DO NOT EDIT BELOW THIS POINT#
############################################################
"];
End[];
EndPackage[];
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