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Grid/lib/lattice/Lattice_ET.h
Peter Boyle 5cc9aca85d Use 64bit index for looping
2018-03-20 06:34:52 -04:00

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./lib/lattice/Lattice_ET.h
Copyright (C) 2015
Author: Azusa Yamaguchi <ayamaguc@staffmail.ed.ac.uk>
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
Author: neo <cossu@post.kek.jp>
This program 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.
This program 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 this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
See the full license in the file "LICENSE" in the top level distribution
directory
*************************************************************************************/
/* END LEGAL */
#ifndef GRID_LATTICE_ET_H
#define GRID_LATTICE_ET_H
#include <iostream>
#include <tuple>
#include <typeinfo>
#include <vector>
NAMESPACE_BEGIN(Grid);
////////////////////////////////////////////////////
// Predicated where support
////////////////////////////////////////////////////
template <class iobj, class vobj, class robj>
accelerator_inline vobj predicatedWhere(const iobj &predicate, const vobj &iftrue,
const robj &iffalse) {
typename std::remove_const<vobj>::type ret;
typedef typename vobj::scalar_object scalar_object;
typedef typename vobj::scalar_type scalar_type;
typedef typename vobj::vector_type vector_type;
const int Nsimd = vobj::vector_type::Nsimd();
ExtractBuffer<Integer> mask(Nsimd);
ExtractBuffer<scalar_object> truevals(Nsimd);
ExtractBuffer<scalar_object> falsevals(Nsimd);
extract(iftrue, truevals);
extract(iffalse, falsevals);
extract<vInteger, Integer>(TensorRemove(predicate), mask);
for (int s = 0; s < Nsimd; s++) {
if (mask[s]) falsevals[s] = truevals[s];
}
merge(ret, falsevals);
return ret;
}
/////////////////////////////////////////////////////
//Specialization of getVectorType for lattices
/////////////////////////////////////////////////////
template<typename T>
struct getVectorType<Lattice<T> >{
typedef typename Lattice<T>::vector_object type;
};
////////////////////////////////////////////
//-- recursive evaluation of expressions; --
// handle leaves of syntax tree
///////////////////////////////////////////////////
template<class sobj> accelerator_inline
sobj eval(const uint64_t ss, const sobj &arg)
{
return arg;
}
template <class lobj> accelerator_inline
const lobj & eval(const uint64_t ss, const LatticeView<lobj> &arg)
{
return arg[ss];
}
template <class lobj> accelerator_inline
const lobj & eval(const uint64_t ss, const Lattice<lobj> &arg)
{
auto view = arg.View();
return view[ss];
}
///////////////////////////////////////////////////
// handle nodes in syntax tree- eval one operand
///////////////////////////////////////////////////
template <typename Op, typename T1> accelerator_inline
auto eval(const uint64_t ss, const LatticeUnaryExpression<Op, T1> &expr)
-> decltype(expr.op.func( eval(ss, expr.arg1)))
{
return expr.op.func( eval(ss, expr.arg1) );
}
///////////////////////
// eval two operands
///////////////////////
template <typename Op, typename T1, typename T2> accelerator_inline
auto eval(const uint64_t ss, const LatticeBinaryExpression<Op, T1, T2> &expr)
-> decltype(expr.op.func( eval(ss,expr.arg1),eval(ss,expr.arg2)))
{
return expr.op.func( eval(ss,expr.arg1), eval(ss,expr.arg2) );
}
///////////////////////
// eval three operands
///////////////////////
template <typename Op, typename T1, typename T2, typename T3> accelerator_inline
auto eval(const uint64_t ss, const LatticeTrinaryExpression<Op, T1, T2, T3> &expr)
-> decltype(expr.op.func(eval(ss, expr.arg1), eval(ss, expr.arg2), eval(ss, expr.arg3)))
{
return expr.op.func(eval(ss, expr.arg1), eval(ss, expr.arg2), eval(ss, expr.arg3));
}
//////////////////////////////////////////////////////////////////////////
// Obtain the grid from an expression, ensuring conformable. This must follow a
// tree recursion; must retain grid pointer in the LatticeView class which sucks
// Use a different method, and make it void *.
// Perhaps a conformable method.
//////////////////////////////////////////////////////////////////////////
template <class T1,typename std::enable_if<is_lattice<T1>::value, T1>::type * = nullptr>
accelerator_inline void GridFromExpression(GridBase *&grid, const T1 &lat) // Lattice leaf
{
lat.Conformable(grid);
}
template <class T1,typename std::enable_if<!is_lattice<T1>::value, T1>::type * = nullptr>
accelerator_inline
void GridFromExpression(GridBase *&grid,const T1 &notlat) // non-lattice leaf
{}
template <typename Op, typename T1>
accelerator_inline
void GridFromExpression(GridBase *&grid,const LatticeUnaryExpression<Op, T1> &expr)
{
GridFromExpression(grid, expr.arg1); // recurse
}
template <typename Op, typename T1, typename T2>
accelerator_inline
void GridFromExpression(GridBase *&grid, const LatticeBinaryExpression<Op, T1, T2> &expr)
{
GridFromExpression(grid, expr.arg1); // recurse
GridFromExpression(grid, expr.arg2);
}
template <typename Op, typename T1, typename T2, typename T3>
accelerator_inline
void GridFromExpression(GridBase *&grid, const LatticeTrinaryExpression<Op, T1, T2, T3> &expr)
{
GridFromExpression(grid, expr.arg1); // recurse
GridFromExpression(grid, expr.arg2); // recurse
GridFromExpression(grid, expr.arg3); // recurse
}
//////////////////////////////////////////////////////////////////////////
// Obtain the CB from an expression, ensuring conformable. This must follow a
// tree recursion
//////////////////////////////////////////////////////////////////////////
template <class T1,typename std::enable_if<is_lattice<T1>::value, T1>::type * = nullptr>
inline void CBFromExpression(int &cb, const T1 &lat) // Lattice leaf
{
if ((cb == Odd) || (cb == Even)) {
assert(cb == lat.Checkerboard());
}
cb = lat.Checkerboard();
}
template <class T1,typename std::enable_if<!is_lattice<T1>::value, T1>::type * = nullptr>
inline void CBFromExpression(int &cb, const T1 &notlat) // non-lattice leaf
{
}
template <typename Op, typename T1> inline
void CBFromExpression(int &cb,const LatticeUnaryExpression<Op, T1> &expr)
{
CBFromExpression(cb, expr.arg1); // recurse AST
}
template <typename Op, typename T1, typename T2> inline
void CBFromExpression(int &cb,const LatticeBinaryExpression<Op, T1, T2> &expr)
{
CBFromExpression(cb, expr.arg1); // recurse AST
CBFromExpression(cb, expr.arg2); // recurse AST
}
template <typename Op, typename T1, typename T2, typename T3>
inline void CBFromExpression(int &cb, const LatticeTrinaryExpression<Op, T1, T2, T3> &expr)
{
CBFromExpression(cb, expr.arg1); // recurse AST
CBFromExpression(cb, expr.arg2); // recurse AST
CBFromExpression(cb, expr.arg3); // recurse AST
}
////////////////////////////////////////////
// Unary operators and funcs
////////////////////////////////////////////
#define GridUnopClass(name, ret) \
template <class arg> \
struct name { \
static auto accelerator_inline func(const arg a) -> decltype(ret) { return ret; } \
};
GridUnopClass(UnarySub, -a);
GridUnopClass(UnaryNot, Not(a));
GridUnopClass(UnaryAdj, adj(a));
GridUnopClass(UnaryConj, conjugate(a));
GridUnopClass(UnaryTrace, trace(a));
GridUnopClass(UnaryTranspose, transpose(a));
GridUnopClass(UnaryTa, Ta(a));
GridUnopClass(UnaryProjectOnGroup, ProjectOnGroup(a));
GridUnopClass(UnaryReal, real(a));
GridUnopClass(UnaryImag, imag(a));
GridUnopClass(UnaryToReal, toReal(a));
GridUnopClass(UnaryToComplex, toComplex(a));
GridUnopClass(UnaryTimesI, timesI(a));
GridUnopClass(UnaryTimesMinusI, timesMinusI(a));
GridUnopClass(UnaryAbs, abs(a));
GridUnopClass(UnarySqrt, sqrt(a));
GridUnopClass(UnaryRsqrt, rsqrt(a));
GridUnopClass(UnarySin, sin(a));
GridUnopClass(UnaryCos, cos(a));
GridUnopClass(UnaryAsin, asin(a));
GridUnopClass(UnaryAcos, acos(a));
GridUnopClass(UnaryLog, log(a));
GridUnopClass(UnaryExp, exp(a));
////////////////////////////////////////////
// Binary operators
////////////////////////////////////////////
#define GridBinOpClass(name, combination) \
template <class left, class right> \
struct name { \
static auto accelerator_inline \
func(const left &lhs, const right &rhs) \
-> decltype(combination) const \
{ \
return combination; \
} \
};
GridBinOpClass(BinaryAdd, lhs + rhs);
GridBinOpClass(BinarySub, lhs - rhs);
GridBinOpClass(BinaryMul, lhs *rhs);
GridBinOpClass(BinaryDiv, lhs /rhs);
GridBinOpClass(BinaryAnd, lhs &rhs);
GridBinOpClass(BinaryOr, lhs | rhs);
GridBinOpClass(BinaryAndAnd, lhs &&rhs);
GridBinOpClass(BinaryOrOr, lhs || rhs);
////////////////////////////////////////////////////
// Trinary conditional op
////////////////////////////////////////////////////
#define GridTrinOpClass(name, combination) \
template <class predicate, class left, class right> \
struct name { \
static auto accelerator_inline \
func(const predicate &pred, const left &lhs, const right &rhs) \
-> decltype(combination) const \
{ \
return combination; \
} \
};
GridTrinOpClass(TrinaryWhere,
(predicatedWhere<predicate,
typename std::remove_reference<left>::type,
typename std::remove_reference<right>::type>(pred, lhs,rhs)));
////////////////////////////////////////////
// Operator syntactical glue
////////////////////////////////////////////
#define GRID_UNOP(name) name<decltype(eval(0, arg))>
#define GRID_BINOP(name) name<decltype(eval(0, lhs)), decltype(eval(0, rhs))>
#define GRID_TRINOP(name) name<decltype(eval(0, pred)), decltype(eval(0, lhs)), decltype(eval(0, rhs))>
#define GRID_DEF_UNOP(op, name) \
template <typename T1, typename std::enable_if<is_lattice<T1>::value||is_lattice_expr<T1>::value,T1>::type * = nullptr> \
inline auto op(const T1 &arg) ->decltype(LatticeUnaryExpression<GRID_UNOP(name),T1>(GRID_UNOP(name)(), arg)) \
{ \
return LatticeUnaryExpression<GRID_UNOP(name),T1>(GRID_UNOP(name)(), arg); \
}
#define GRID_BINOP_LEFT(op, name) \
template <typename T1, typename T2, \
typename std::enable_if<is_lattice<T1>::value||is_lattice_expr<T1>::value,T1>::type * = nullptr> \
inline auto op(const T1 &lhs, const T2 &rhs) \
->decltype(LatticeBinaryExpression<GRID_BINOP(name),T1,T2>(GRID_BINOP(name)(),lhs,rhs)) \
{ \
return LatticeBinaryExpression<GRID_BINOP(name),T1,T2>(GRID_BINOP(name)(),lhs,rhs);\
}
#define GRID_BINOP_RIGHT(op, name) \
template <typename T1, typename T2, \
typename std::enable_if<!is_lattice<T1>::value&&!is_lattice_expr<T1>::value,T1>::type * = nullptr, \
typename std::enable_if< is_lattice<T2>::value|| is_lattice_expr<T2>::value,T2>::type * = nullptr> \
inline auto op(const T1 &lhs, const T2 &rhs) \
->decltype(LatticeBinaryExpression<GRID_BINOP(name),T1,T2>(GRID_BINOP(name)(),lhs, rhs)) \
{ \
return LatticeBinaryExpression<GRID_BINOP(name),T1,T2>(GRID_BINOP(name)(),lhs, rhs); \
}
#define GRID_DEF_BINOP(op, name) \
GRID_BINOP_LEFT(op, name); \
GRID_BINOP_RIGHT(op, name);
#define GRID_DEF_TRINOP(op, name) \
template <typename T1, typename T2, typename T3> \
inline auto op(const T1 &pred, const T2 &lhs, const T3 &rhs) \
->decltype(LatticeTrinaryExpression<GRID_TRINOP(name),T1,T2,T3>(GRID_TRINOP(name)(),pred, lhs, rhs)) \
{ \
return LatticeTrinaryExpression<GRID_TRINOP(name),T1,T2,T3>(GRID_TRINOP(name)(),pred, lhs, rhs); \
}
////////////////////////
// Operator definitions
////////////////////////
GRID_DEF_UNOP(operator-, UnarySub);
GRID_DEF_UNOP(Not, UnaryNot);
GRID_DEF_UNOP(operator!, UnaryNot);
GRID_DEF_UNOP(adj, UnaryAdj);
GRID_DEF_UNOP(conjugate, UnaryConj);
GRID_DEF_UNOP(trace, UnaryTrace);
GRID_DEF_UNOP(transpose, UnaryTranspose);
GRID_DEF_UNOP(Ta, UnaryTa);
GRID_DEF_UNOP(ProjectOnGroup, UnaryProjectOnGroup);
GRID_DEF_UNOP(real, UnaryReal);
GRID_DEF_UNOP(imag, UnaryImag);
GRID_DEF_UNOP(toReal, UnaryToReal);
GRID_DEF_UNOP(toComplex, UnaryToComplex);
GRID_DEF_UNOP(timesI, UnaryTimesI);
GRID_DEF_UNOP(timesMinusI, UnaryTimesMinusI);
GRID_DEF_UNOP(abs, UnaryAbs); // abs overloaded in cmath C++98; DON'T do the
// abs-fabs-dabs-labs thing
GRID_DEF_UNOP(sqrt, UnarySqrt);
GRID_DEF_UNOP(rsqrt, UnaryRsqrt);
GRID_DEF_UNOP(sin, UnarySin);
GRID_DEF_UNOP(cos, UnaryCos);
GRID_DEF_UNOP(asin, UnaryAsin);
GRID_DEF_UNOP(acos, UnaryAcos);
GRID_DEF_UNOP(log, UnaryLog);
GRID_DEF_UNOP(exp, UnaryExp);
GRID_DEF_BINOP(operator+, BinaryAdd);
GRID_DEF_BINOP(operator-, BinarySub);
GRID_DEF_BINOP(operator*, BinaryMul);
GRID_DEF_BINOP(operator/, BinaryDiv);
GRID_DEF_BINOP(operator&, BinaryAnd);
GRID_DEF_BINOP(operator|, BinaryOr);
GRID_DEF_BINOP(operator&&, BinaryAndAnd);
GRID_DEF_BINOP(operator||, BinaryOrOr);
GRID_DEF_TRINOP(where, TrinaryWhere);
/////////////////////////////////////////////////////////////
// Closure convenience to force expression to evaluate
/////////////////////////////////////////////////////////////
template <class Op, class T1>
auto closure(const LatticeUnaryExpression<Op, T1> &expr)
-> Lattice<decltype(expr.op.func(eval(0, expr.arg1)))>
{
Lattice<decltype(expr.op.func(eval(0, expr.arg1)))> ret(expr);
return ret;
}
template <class Op, class T1, class T2>
auto closure(const LatticeBinaryExpression<Op, T1, T2> &expr)
-> Lattice<decltype(expr.op.func(eval(0, expr.arg1),eval(0, expr.arg2)))>
{
Lattice<decltype(expr.op.func(eval(0, expr.arg1),eval(0, expr.arg2)))> ret(expr);
return ret;
}
template <class Op, class T1, class T2, class T3>
auto closure(const LatticeTrinaryExpression<Op, T1, T2, T3> &expr)
-> Lattice<decltype(expr.op.func(eval(0, expr.arg1),
eval(0, expr.arg2),
eval(0, expr.arg3)))>
{
Lattice<decltype(expr.op.func(eval(0, expr.arg1),
eval(0, expr.arg2),
eval(0, expr.arg3)))> ret(expr);
return ret;
}
#undef GRID_UNOP
#undef GRID_BINOP
#undef GRID_TRINOP
#undef GRID_DEF_UNOP
#undef GRID_DEF_BINOP
#undef GRID_DEF_TRINOP
NAMESPACE_END(Grid);
#endif
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