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Grid/Grid/simd/Grid_a64fx-2.h

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: Grid_a64fx-2.h
Copyright (C) 2020
Author: Nils Meyer <nils.meyer@ur.de>
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 */
/////////////////////////////////////////////////////
// Using SVE ACLE
/////////////////////////////////////////////////////
static_assert(GEN_SIMD_WIDTH % 64u == 0, "A64FX SIMD vector size is 64 bytes");
NAMESPACE_BEGIN(Grid);
NAMESPACE_BEGIN(Optimization);
// type traits giving the number of elements for each vector type
template <typename T> struct W;
template <> struct W<double> {
constexpr static unsigned int c = GEN_SIMD_WIDTH/16u;
constexpr static unsigned int r = GEN_SIMD_WIDTH/8u;
};
template <> struct W<float> {
constexpr static unsigned int c = GEN_SIMD_WIDTH/8u;
constexpr static unsigned int r = GEN_SIMD_WIDTH/4u;
};
template <> struct W<Integer> {
constexpr static unsigned int r = GEN_SIMD_WIDTH/4u;
};
template <> struct W<uint16_t> {
constexpr static unsigned int c = GEN_SIMD_WIDTH/4u;
constexpr static unsigned int r = GEN_SIMD_WIDTH/2u;
};
template <> struct W<uint64_t> {
constexpr static unsigned int c = GEN_SIMD_WIDTH/16u;
constexpr static unsigned int r = GEN_SIMD_WIDTH/8u;
};
// SIMD vector types
template <typename T>
struct vec {
alignas(GEN_SIMD_WIDTH) T v[W<T>::r];
};
typedef vec<float> vecf;
typedef vec<double> vecd;
typedef vec<uint16_t> vech; // half precision comms
typedef vec<Integer> veci;
NAMESPACE_END(Optimization)
NAMESPACE_END(Grid)
// low-level API
NAMESPACE_BEGIN(Grid);
NAMESPACE_BEGIN(Optimization);
template <typename T>
struct acle{};
template <>
struct acle<double>{
typedef svfloat64_t vt;
typedef svfloat64x2_t vt2;
typedef svfloat64x4_t vt4;
typedef float64_t pt;
typedef uint64_t uint;
typedef svuint64_t svuint;
static inline svbool_t pg1(){return svptrue_b64();}
static inline svbool_t pg2(){return svptrue_pat_b64(SV_VL4);}
static inline svbool_t pg4(){return svptrue_pat_b64(SV_VL2);}
static inline vec<uint64_t> tbl_swap(){
const vec<uint64_t> t = {1, 0, 3, 2, 5, 4, 7, 6};
return t;
}
static inline vec<uint64_t> tbl0(){
const vec<uint64_t> t = {4, 5, 6, 7, 0, 1, 2, 3};
return t;
}
static inline vec<uint64_t> tbl1(){
const vec<uint64_t> t = {2, 3, 0, 1, 6, 7, 4, 5};
return t;
}
static inline vec<uint64_t> tbl_exch1a(){ // Exchange1
const vec<uint64_t> t = {0, 1, 4, 5, 2, 3, 6, 7};
return t;
}
static inline vec<uint64_t> tbl_exch1b(){ // Exchange1
const vec<uint64_t> t = {2, 3, 6, 7, 0, 1, 4, 5};
return t;
}
static inline vec<uint64_t> tbl_exch1c(){ // Exchange1
const vec<uint64_t> t = {4, 5, 0, 1, 6, 7, 2, 3};
return t;
}
static inline svbool_t pg_even(){return svzip1_b64(svptrue_b64(), svpfalse_b());}
static inline svbool_t pg_odd() {return svzip1_b64(svpfalse_b(), svptrue_b64());}
static inline svfloat64_t zero(){return svdup_f64(0.);}
};
template <>
struct acle<float>{
typedef svfloat32_t vt;
typedef svfloat32x2_t vt2;
typedef float32_t pt;
typedef uint32_t uint;
typedef svuint32_t svuint;
static inline svbool_t pg1(){return svptrue_b32();}
static inline svbool_t pg2(){return svptrue_pat_b32(SV_VL8);}
// exchange neighboring elements
static inline vec<uint32_t> tbl_swap(){
const vec<uint32_t> t = {1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10, 13, 12, 15, 14};
return t;
}
static inline vec<uint32_t> tbl0(){
const vec<uint32_t> t = {8, 9, 10, 11, 12, 13, 14, 15, 0, 1, 2, 3, 4, 5, 6, 7};
return t;
}
static inline vec<uint32_t> tbl1(){
const vec<uint32_t> t = {4, 5, 6, 7, 0, 1, 2, 3, 12, 13, 14, 15, 8, 9, 10, 11};
return t;
}
static inline vec<uint32_t> tbl2(){
const vec<uint32_t> t = {2, 3, 0, 1, 6, 7, 4, 5, 10, 11, 8, 9, 14, 15, 12, 13};
return t;
}
static inline vec<uint32_t> tbl_exch1a(){ // Exchange1
const vec<uint32_t> t = {0, 1, 2, 3, 8, 9, 10, 11, 4, 5, 6, 7, 12, 13, 14, 15 };
return t;
}
static inline vec<uint32_t> tbl_exch1b(){ // Exchange1
const vec<uint32_t> t = {4, 5, 6, 7, 12, 13, 14, 15, 0, 1, 2, 3, 8, 9, 10, 11 };
return t;
}
static inline vec<uint32_t> tbl_exch1c(){ // Exchange1
const vec<uint32_t> t = {8, 9, 10, 11, 0, 1, 2, 3, 12, 13, 14, 15, 4, 5, 6, 7};
return t;
}
static inline svbool_t pg_even(){return svzip1_b32(svptrue_b32(), svpfalse_b());}
static inline svbool_t pg_odd() {return svzip1_b32(svpfalse_b(), svptrue_b32());}
static inline svfloat32_t zero(){return svdup_f32(0.);}
};
template <>
struct acle<uint16_t>{
typedef svfloat16_t vt;
typedef float16_t pt;
typedef uint16_t uint;
typedef svuint16_t svuint;
static inline svbool_t pg1(){return svptrue_b16();}
static inline svbool_t pg2(){return svptrue_pat_b16(SV_VL16);}
static inline svbool_t pg_even(){return svzip1_b16(svptrue_b16(), svpfalse_b());}
static inline svbool_t pg_odd() {return svzip1_b16(svpfalse_b(), svptrue_b16());}
static inline svfloat16_t zero(){return svdup_f16(0.);}
};
template <>
struct acle<Integer>{
typedef svuint32_t vt;
typedef svuint32x2_t vt2;
typedef Integer pt;
typedef uint32_t uint;
typedef svuint32_t svuint;
//static inline svbool_t pg1(){return svptrue_b16();}
static inline svbool_t pg1(){return svptrue_b32();}
static inline svbool_t pg2(){return svptrue_pat_b32(SV_VL8);}
static inline svbool_t pg_even(){return svzip1_b32(svptrue_b32(), svpfalse_b());}
static inline svbool_t pg_odd() {return svzip1_b32(svpfalse_b(), svptrue_b32());}
};
// ---------------------------------------------------
struct Vsplat{
// Complex float
inline vecf operator()(float a, float b){
vecf out;
svbool_t pg1 = acle<float>::pg1();
typename acle<float>::vt a_v = svdup_f32(a);
typename acle<float>::vt b_v = svdup_f32(b);
typename acle<float>::vt r_v = svzip1(a_v, b_v);
svst1(pg1, out.v, r_v);
return out;
}
// Real float
inline vecf operator()(float a){
vecf out;
svbool_t pg1 = acle<float>::pg1();
typename acle<float>::vt r_v = svdup_f32(a);
svst1(pg1, out.v, r_v);
return out;
}
// Complex double
inline vecd operator()(double a, double b){
vecd out;
svbool_t pg1 = acle<double>::pg1();
typename acle<double>::vt a_v = svdup_f64(a);
typename acle<double>::vt b_v = svdup_f64(b);
typename acle<double>::vt r_v = svzip1(a_v, b_v);
svst1(pg1, out.v, r_v);
return out;
}
// Real double
inline vecd operator()(double a){
vecd out;
svbool_t pg1 = acle<double>::pg1();
typename acle<double>::vt r_v = svdup_f64(a);
svst1(pg1, out.v, r_v);
return out;
}
// Integer
inline vec<Integer> operator()(Integer a){
vec<Integer> out;
svbool_t pg1 = acle<Integer>::pg1();
// Add check whether Integer is really a uint32_t???
typename acle<Integer>::vt r_v = svdup_u32(a);
svst1(pg1, out.v, r_v);
return out;
}
};
struct Vstore{
// Real
template <typename T>
inline void operator()(vec<T> a, T *D){
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, (typename acle<T>::pt*)&a.v);
svst1(pg1, D, a_v);
}
};
struct Vstream{
// Real
template <typename T>
inline void operator()(T * a, vec<T> b){
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt b_v = svld1(pg1, b.v);
svstnt1(pg1, a, b_v);
//svst1(pg1, a, b_v);
}
};
struct Vset{
// Complex
template <typename T>
inline vec<T> operator()(std::complex<T> *a){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, (T*)a);
svst1(pg1, out.v, a_v);
return out;
}
// Real
template <typename T>
inline vec<T> operator()(T *a){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, a);
svst1(pg1, out.v, a_v);
return out;
}
};
/////////////////////////////////////////////////////
// Arithmetic operations
/////////////////////////////////////////////////////
struct Sum{
template <typename T>
inline vec<T> operator()(vec<T> a, vec<T> b){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, a.v);
typename acle<T>::vt b_v = svld1(pg1, b.v);
typename acle<T>::vt r_v = svadd_x(pg1, a_v, b_v);
svst1(pg1, out.v, r_v);
return out;
}
};
struct Sub{
template <typename T>
inline vec<T> operator()(vec<T> a, vec<T> b){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, a.v);
typename acle<T>::vt b_v = svld1(pg1, b.v);
typename acle<T>::vt r_v = svsub_x(pg1, a_v, b_v);
svst1(pg1, out.v, r_v);
return out;
}
};
struct Mult{
template <typename T>
inline vec<T> operator()(vec<T> a, vec<T> b, vec<T> c){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, a.v);
typename acle<T>::vt b_v = svld1(pg1, b.v);
typename acle<T>::vt c_v = svld1(pg1, c.v);
typename acle<T>::vt r_v = svmad_x(pg1, b_v, c_v, a_v);
svst1(pg1, out.v, r_v);
return out;
}
template <typename T>
inline vec<T> operator()(vec<T> a, vec<T> b){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, a.v);
typename acle<T>::vt b_v = svld1(pg1, b.v);
typename acle<T>::vt r_v = svmul_x(pg1, a_v, b_v);
svst1(pg1, out.v, r_v);
return out;
}
};
struct MultRealPart{
template <typename T>
inline vec<T> operator()(vec<T> a, vec<T> b){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, a.v);
typename acle<T>::vt b_v = svld1(pg1, b.v);
// using FCMLA
typename acle<T>::vt z_v = acle<T>::zero();
typename acle<T>::vt r_v = svcmla_x(pg1, z_v, a_v, b_v, 0);
svst1(pg1, out.v, r_v);
return out;
}
};
struct MaddRealPart{
template <typename T>
inline vec<T> operator()(vec<T> a, vec<T> b, vec<T> c){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, a.v);
typename acle<T>::vt b_v = svld1(pg1, b.v);
typename acle<T>::vt c_v = svld1(pg1, c.v);
// using FCMLA
typename acle<T>::vt r_v = svcmla_x(pg1, c_v, a_v, b_v, 0);
svst1(pg1, out.v, r_v);
return out;
}
};
struct MultComplex{
// Complex a*b
template <typename T>
inline vec<T> operator()(vec<T> a, vec<T> b){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, a.v);
typename acle<T>::vt b_v = svld1(pg1, b.v);
typename acle<T>::vt z_v = acle<T>::zero();
// using FCMLA
typename acle<T>::vt r_v = svcmla_x(pg1, z_v, a_v, b_v, 0);
r_v = svcmla_x(pg1, r_v, a_v, b_v, 90);
svst1(pg1, out.v, r_v);
return out;
}
};
struct MultAddComplex{
// Complex a*b+c
template <typename T>
inline vec<T> operator()(vec<T> a, vec<T> b, vec<T> c){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, a.v);
typename acle<T>::vt b_v = svld1(pg1, b.v);
typename acle<T>::vt c_v = svld1(pg1, c.v);;
// using FCMLA
typename acle<T>::vt r_v = svcmla_x(pg1, c_v, a_v, b_v, 0);
r_v = svcmla_x(pg1, r_v, a_v, b_v, 90);
svst1(pg1, out.v, r_v);
return out;
}
};
struct Div{
// Real
template <typename T>
inline vec<T> operator()(vec<T> a, vec<T> b){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, a.v);
typename acle<T>::vt b_v = svld1(pg1, b.v);
typename acle<T>::vt r_v = svdiv_x(pg1, a_v, b_v);
svst1(pg1, out.v, r_v);
return out;
}
};
struct Conj{
// Complex
template <typename T>
inline vec<T> operator()(vec<T> a){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
svbool_t pg_odd = acle<T>::pg_odd();
typename acle<T>::vt a_v = svld1(pg1, a.v);
//typename acle<T>::vt r_v = svneg_x(pg_odd, a_v);
typename acle<T>::vt r_v = svneg_m(a_v, pg_odd, a_v);
svst1(pg1, out.v, r_v);
return out;
}
};
struct TimesMinusI{
// Complex
template <typename T>
inline vec<T> operator()(vec<T> a, vec<T> b){
vec<T> out;
const vec<typename acle<T>::uint> tbl_swap = acle<T>::tbl_swap();
svbool_t pg1 = acle<T>::pg1();
svbool_t pg_odd = acle<T>::pg_odd();
typename acle<T>::svuint tbl_swap_v = svld1(pg1, tbl_swap.v);
typename acle<T>::vt a_v = svld1(pg1, a.v);
a_v = svtbl(a_v, tbl_swap_v);
typename acle<T>::vt r_v = svneg_m(a_v, pg_odd, a_v);
svst1(pg1, out.v, r_v);
return out;
}
};
struct TimesI{
// Complex
template <typename T>
inline vec<T> operator()(vec<T> a, vec<T> b){
vec<T> out;
const vec<typename acle<T>::uint> tbl_swap = acle<T>::tbl_swap();
svbool_t pg1 = acle<T>::pg1();
svbool_t pg_even = acle<T>::pg_even();
typename acle<T>::svuint tbl_swap_v = svld1(pg1, tbl_swap.v);
typename acle<T>::vt a_v = svld1(pg1, a.v);
a_v = svtbl(a_v, tbl_swap_v);
//typename acle<T>::vt r_v = svneg_x(pg_even, a_v);
typename acle<T>::vt r_v = svneg_m(a_v, pg_even, a_v);
svst1(pg1, out.v, r_v);
return out;
}
};
struct PrecisionChange {
static inline vech StoH (const vecf &sa,const vecf &sb) {
vech ret;
svbool_t pg1s = acle<float>::pg1();
svbool_t pg1h = acle<uint16_t>::pg1();
typename acle<float>::vt sa_v = svld1(pg1s, sa.v);
typename acle<float>::vt sb_v = svld1(pg1s, sb.v);
typename acle<uint16_t>::vt ha_v = svcvt_f16_x(pg1s, sa_v);
typename acle<uint16_t>::vt hb_v = svcvt_f16_x(pg1s, sb_v);
typename acle<uint16_t>::vt r_v = svuzp1(ha_v, hb_v);
svst1(pg1h, (typename acle<uint16_t>::pt*)&ret.v, r_v);
return ret;
}
static inline void HtoS(vech h,vecf &sa,vecf &sb) {
svbool_t pg1h = acle<uint16_t>::pg1();
svbool_t pg1s = acle<float>::pg1();
typename acle<uint16_t>::vt h_v = svld1(pg1h, (typename acle<uint16_t>::pt*)&h.v);
typename acle<uint16_t>::vt ha_v = svzip1(h_v, h_v);
typename acle<uint16_t>::vt hb_v = svzip2(h_v, h_v);
typename acle<float>::vt sa_v = svcvt_f32_x(pg1s, ha_v);
typename acle<float>::vt sb_v = svcvt_f32_x(pg1s, hb_v);
svst1(pg1s, sa.v, sa_v);
svst1(pg1s, sb.v, sb_v);
}
static inline vecf DtoS (vecd a,vecd b) {
vecf ret;
svbool_t pg1d = acle<double>::pg1();
svbool_t pg1s = acle<float>::pg1();
typename acle<double>::vt a_v = svld1(pg1d, a.v);
typename acle<double>::vt b_v = svld1(pg1d, b.v);
typename acle<float>::vt sa_v = svcvt_f32_x(pg1d, a_v);
typename acle<float>::vt sb_v = svcvt_f32_x(pg1d, b_v);
typename acle<float>::vt r_v = svuzp1(sa_v, sb_v);
svst1(pg1s, ret.v, r_v);
return ret;
}
static inline void StoD (vecf s,vecd &a,vecd &b) {
svbool_t pg1s = acle<float>::pg1();
svbool_t pg1d = acle<double>::pg1();
typename acle<float>::vt s_v = svld1(pg1s, s.v);
typename acle<float>::vt sa_v = svzip1(s_v, s_v);
typename acle<float>::vt sb_v = svzip2(s_v, s_v);
typename acle<double>::vt a_v = svcvt_f64_x(pg1d, sa_v);
typename acle<double>::vt b_v = svcvt_f64_x(pg1d, sb_v);
svst1(pg1d, a.v, a_v);
svst1(pg1d, b.v, b_v);
}
static inline vech DtoH (vecd a,vecd b,vecd c,vecd d) {
vech ret;
svbool_t pg1d = acle<double>::pg1();
svbool_t pg1h = acle<uint16_t>::pg1();
typename acle<double>::vt a_v = svld1(pg1d, a.v);
typename acle<double>::vt b_v = svld1(pg1d, b.v);
typename acle<double>::vt c_v = svld1(pg1d, c.v);
typename acle<double>::vt d_v = svld1(pg1d, d.v);
typename acle<uint16_t>::vt ha_v = svcvt_f16_x(pg1d, a_v);
typename acle<uint16_t>::vt hb_v = svcvt_f16_x(pg1d, b_v);
typename acle<uint16_t>::vt hc_v = svcvt_f16_x(pg1d, c_v);
typename acle<uint16_t>::vt hd_v = svcvt_f16_x(pg1d, d_v);
typename acle<uint16_t>::vt hab_v = svuzp1(ha_v, hb_v);
typename acle<uint16_t>::vt hcd_v = svuzp1(hc_v, hd_v);
typename acle<uint16_t>::vt r_v = svuzp1(hab_v, hcd_v);
svst1(pg1h, (typename acle<uint16_t>::pt*)&ret.v, r_v);
return ret;
/*
vecf sa,sb;
sa = DtoS(a,b);
sb = DtoS(c,d);
return StoH(sa,sb);
*/
}
static inline void HtoD(vech h,vecd &a,vecd &b,vecd &c,vecd &d) {
svbool_t pg1h = acle<uint16_t>::pg1();
svbool_t pg1d = acle<double>::pg1();
typename acle<uint16_t>::vt h_v = svld1(pg1h, (typename acle<uint16_t>::pt*)&h.v);
typename acle<uint16_t>::vt sa_v = svzip1(h_v, h_v);
typename acle<uint16_t>::vt sb_v = svzip2(h_v, h_v);
typename acle<uint16_t>::vt da_v = svzip1(sa_v, sa_v);
typename acle<uint16_t>::vt db_v = svzip2(sa_v, sa_v);
typename acle<uint16_t>::vt dc_v = svzip1(sb_v, sb_v);
typename acle<uint16_t>::vt dd_v = svzip2(sb_v, sb_v);
typename acle<double>::vt a_v = svcvt_f64_x(pg1d, da_v);
typename acle<double>::vt b_v = svcvt_f64_x(pg1d, db_v);
typename acle<double>::vt c_v = svcvt_f64_x(pg1d, dc_v);
typename acle<double>::vt d_v = svcvt_f64_x(pg1d, dd_v);
svst1(pg1d, a.v, a_v);
svst1(pg1d, b.v, b_v);
svst1(pg1d, c.v, c_v);
svst1(pg1d, d.v, d_v);
/*
vecf sa,sb;
HtoS(h,sa,sb);
StoD(sa,a,b);
StoD(sb,c,d);
*/
}
};
struct Exchange{
// Exchange0 is valid for arbitrary SVE vector length
template <typename T>
static inline void Exchange0(vec<T> &out1, vec<T> &out2, const vec<T> &in1, const vec<T> &in2){
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a1_v = svld1(pg1, in1.v);
typename acle<T>::vt a2_v = svld1(pg1, in2.v);
typename acle<T>::vt r1_v = svext(a1_v, a1_v, (uint64_t)W<T>::c);
r1_v = svext(r1_v, a2_v, (uint64_t)W<T>::c);
typename acle<T>::vt r2_v = svext(a2_v, a2_v, (uint64_t)W<T>::c);
r2_v = svext(a1_v, r2_v, (uint64_t)W<T>::c);
svst1(pg1, out1.v, r1_v);
svst1(pg1, out2.v, r2_v);
}
template <typename T>
static inline void Exchange1(vec<T> &out1, vec<T> &out2, const vec<T> &in1, const vec<T> &in2){
// this one is tricky; svtrn2q* from SVE2 fits best, but it is not available in SVE1
// alternative: use 4-el structure; expect translation into ldp + stp -> SFI
svbool_t pg1 = acle<T>::pg1();
const vec<typename acle<T>::uint> tbl_exch1a = acle<T>::tbl_exch1a();
const vec<typename acle<T>::uint> tbl_exch1b = acle<T>::tbl_exch1b();
const vec<typename acle<T>::uint> tbl_exch1c = acle<T>::tbl_exch1c();
typename acle<T>::svuint tbl_exch1a_v = svld1(pg1, tbl_exch1a.v);
typename acle<T>::svuint tbl_exch1b_v = svld1(pg1, tbl_exch1b.v);
typename acle<T>::svuint tbl_exch1c_v = svld1(pg1, tbl_exch1c.v);
typename acle<T>::vt in1_v = svld1(pg1, in1.v);
typename acle<T>::vt in2_v = svld1(pg1, in2.v);
typename acle<T>::vt a1_v = svtbl(in1_v, tbl_exch1a_v);
typename acle<T>::vt a2_v = svtbl(in2_v, tbl_exch1b_v);
typename acle<T>::vt b1_v = svext(a2_v, a1_v, (uint64_t)(W<T>::r / 2u));
typename acle<T>::vt b2_v = svext(a1_v, a2_v, (uint64_t)(W<T>::r / 2u));
typename acle<T>::vt out1_v = svtbl(b1_v, tbl_exch1c_v);
typename acle<T>::vt out2_v = svtbl(b2_v, tbl_exch1a_v);
svst1(pg1, out1.v, out1_v);
svst1(pg1, out2.v, out2_v);
}
template <typename T>
static inline void Exchange2(vec<T> &out1, vec<T> &out2, const vec<T> &in1, const vec<T> &in2){
svbool_t pg1 = acle<double>::pg1();
typename acle<double>::vt a1_v = svld1(pg1, (typename acle<double>::pt*)in1.v);
typename acle<double>::vt a2_v = svld1(pg1, (typename acle<double>::pt*)in2.v);
typename acle<double>::vt r1_v = svtrn1(a1_v, a2_v);
typename acle<double>::vt r2_v = svtrn2(a1_v, a2_v);
svst1(pg1, (typename acle<double>::pt*)out1.v, r1_v);
svst1(pg1, (typename acle<double>::pt*)out2.v, r2_v);
}
static inline void Exchange3(vecf &out1, vecf &out2, const vecf &in1, const vecf &in2){
svbool_t pg1 = acle<float>::pg1();
typename acle<float>::vt a1_v = svld1(pg1, in1.v);
typename acle<float>::vt a2_v = svld1(pg1, in2.v);
typename acle<float>::vt r1_v = svtrn1(a1_v, a2_v);
typename acle<float>::vt r2_v = svtrn2(a1_v, a2_v);
svst1(pg1, out1.v, r1_v);
svst1(pg1, out2.v, r2_v);
}
static inline void Exchange3(vecd &out1, vecd &out2, const vecd &in1, const vecd &in2){
assert(0);
return;
}
};
struct Permute{
// Permute0 is valid for any SVE vector width
template <typename T>
static inline vec<T> Permute0(vec<T> in) {
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, in.v);
typename acle<T>::vt r_v = svext(a_v, a_v, (uint64_t)(W<T>::r / 2u));
svst1(pg1, out.v, r_v);
return out;
}
static inline vecd Permute1(vecd in) {
vecd out;
const vec<typename acle<double>::uint> tbl_swap = acle<double>::tbl1();
svbool_t pg1 = acle<double>::pg1();
typename acle<double>::vt a_v = svld1(pg1, in.v);
typename acle<double>::svuint tbl_swap_v = svld1(pg1, tbl_swap.v);
typename acle<double>::vt r_v = svtbl(a_v, tbl_swap_v);
svst1(pg1, out.v, r_v);
return out;
}
static inline vecf Permute1(vecf in) {
vecf out;
const vec<typename acle<float>::uint> tbl_swap = acle<float>::tbl1();
svbool_t pg1 = acle<float>::pg1();
typename acle<float>::vt a_v = svld1(pg1, in.v);
typename acle<float>::svuint tbl_swap_v = svld1(pg1, tbl_swap.v);
typename acle<float>::vt r_v = svtbl(a_v, tbl_swap_v);
svst1(pg1, out.v, r_v);
return out;
}
static inline vecd Permute2(vecd in) {
vecd out;
const vec<typename acle<double>::uint> tbl_swap = acle<double>::tbl_swap();
svbool_t pg1 = acle<double>::pg1();
typename acle<double>::vt a_v = svld1(pg1, in.v);
typename acle<double>::svuint tbl_swap_v = svld1(pg1, tbl_swap.v);
typename acle<double>::vt r_v = svtbl(a_v, tbl_swap_v);
svst1(pg1, out.v, r_v);
return out;
}
static inline vecf Permute2(vecf in) {
vecf out;
const vec<typename acle<float>::uint> tbl_swap = acle<float>::tbl2();
svbool_t pg1 = acle<float>::pg1();
typename acle<float>::vt a_v = svld1(pg1, in.v);
typename acle<float>::svuint tbl_swap_v = svld1(pg1, tbl_swap.v);
typename acle<float>::vt r_v = svtbl(a_v, tbl_swap_v);
svst1(pg1, out.v, r_v);
return out;
}
static inline vecf Permute3(vecf in) {
vecf out;
const vec<typename acle<float>::uint> tbl_swap = acle<float>::tbl_swap();
svbool_t pg1 = acle<float>::pg1();
typename acle<float>::vt a_v = svld1(pg1, in.v);
typename acle<float>::svuint tbl_swap_v = svld1(pg1, tbl_swap.v);
typename acle<float>::vt r_v = svtbl(a_v, tbl_swap_v);
svst1(pg1, out.v, r_v);
return out;
}
static inline vecd Permute3(vecd in) {
return in;
}
};
struct Rotate{
template <int n, typename T> static inline vec<T> tRotate(vec<T> in){
vec<T> out;
svbool_t pg1 = acle<T>::pg1();
typename acle<T>::vt a_v = svld1(pg1, in.v);
typename acle<T>::vt r_v = svext(a_v, a_v, (uint64_t)(n%W<T>::r));
svst1(pg1, out.v, r_v);
return out;
}
template <typename T>
static inline vec<T> rotate(vec<T> in, int n){
switch(n){
case 0: return tRotate<0, T>(in); break;
case 1: return tRotate<1, T>(in); break;
case 2: return tRotate<2, T>(in); break;
case 3: return tRotate<3, T>(in); break;
case 4: return tRotate<4, T>(in); break;
case 5: return tRotate<5, T>(in); break;
case 6: return tRotate<6, T>(in); break;
case 7: return tRotate<7, T>(in); break;
case 8: return tRotate<8, T>(in); break;
case 9: return tRotate<9, T>(in); break;
case 10: return tRotate<10, T>(in); break;
case 11: return tRotate<11, T>(in); break;
case 12: return tRotate<12, T>(in); break;
case 13: return tRotate<13, T>(in); break;
case 14: return tRotate<14, T>(in); break;
case 15: return tRotate<15, T>(in); break;
default: assert(0);
}
}
};
// tree-based reduction
#define svred(pg, v)\
svaddv(pg, v);
// left-to-right reduction
// #define svred(pg, v)\
// svadda(pg, 0, v)
template <typename Out_type, typename In_type>
struct Reduce{
//Need templated class to overload output type
//General form must generate error if compiled
inline Out_type operator()(In_type in){
printf("Error, using wrong Reduce function\n");
exit(1);
return 0;
}
};
//Complex float Reduce
template <>
inline Grid::ComplexF Reduce<Grid::ComplexF, vecf>::operator()(vecf in){
svbool_t pg1 = acle<float>::pg1();
svbool_t pg_even = acle<float>::pg_even();
svbool_t pg_odd = acle<float>::pg_odd();
typename acle<float>::vt a_v = svld1(pg1, in.v);
float a = svred(pg_even, a_v);
float b = svred(pg_odd, a_v);
return Grid::ComplexF(a, b);
}
//Real float Reduce
template <>
inline Grid::RealF Reduce<Grid::RealF, vecf>::operator()(vecf in){
svbool_t pg1 = acle<float>::pg1();
typename acle<float>::vt a_v = svld1(pg1, in.v);
float a = svred(pg1, a_v);
return a;
}
//Complex double Reduce
template <>
inline Grid::ComplexD Reduce<Grid::ComplexD, vecd>::operator()(vecd in){
svbool_t pg1 = acle<double>::pg1();
svbool_t pg_even = acle<double>::pg_even();
svbool_t pg_odd = acle<double>::pg_odd();
typename acle<double>::vt a_v = svld1(pg1, in.v);
double a = svred(pg_even, a_v);
double b = svred(pg_odd, a_v);
return Grid::ComplexD(a, b);
}
//Real double Reduce
template <>
inline Grid::RealD Reduce<Grid::RealD, vecd>::operator()(vecd in){
svbool_t pg1 = acle<double>::pg1();
typename acle<double>::vt a_v = svld1(pg1, in.v);
double a = svred(pg1, a_v);
return a;
}
//Integer Reduce
template <>
inline Integer Reduce<Integer, veci>::operator()(veci in){
svbool_t pg1 = acle<Integer>::pg1();
typename acle<Integer>::vt a_v = svld1(pg1, in.v);
Integer a = svred(pg1, a_v);
return a;
}
#undef svred
NAMESPACE_END(Optimization)
//////////////////////////////////////////////////////////////////////////////////////
// Here assign types
typedef Optimization::vech SIMD_Htype; // Reduced precision type
typedef Optimization::vecf SIMD_Ftype; // Single precision type
typedef Optimization::vecd SIMD_Dtype; // Double precision type
typedef Optimization::veci SIMD_Itype; // Integer type
// prefetch utilities
inline void v_prefetch0(int size, const char *ptr){};
inline void prefetch_HINT_T0(const char *ptr){};
// Function name aliases
typedef Optimization::Vsplat VsplatSIMD;
typedef Optimization::Vstore VstoreSIMD;
typedef Optimization::Vset VsetSIMD;
typedef Optimization::Vstream VstreamSIMD;
template <typename S, typename T> using ReduceSIMD = Optimization::Reduce<S,T>;
// Arithmetic operations
typedef Optimization::Sum SumSIMD;
typedef Optimization::Sub SubSIMD;
typedef Optimization::Div DivSIMD;
typedef Optimization::Mult MultSIMD;
typedef Optimization::MultComplex MultComplexSIMD;
typedef Optimization::MultAddComplex MultAddComplexSIMD;
typedef Optimization::MultRealPart MultRealPartSIMD;
typedef Optimization::MaddRealPart MaddRealPartSIMD;
typedef Optimization::Conj ConjSIMD;
typedef Optimization::TimesMinusI TimesMinusISIMD;
typedef Optimization::TimesI TimesISIMD;
NAMESPACE_END(Grid)
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