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Grid/tests/Test_simd.cc
paboyle 2846f079e5 Predicate tests on fp16 being enabled
2017-04-13 12:08:05 +01:00

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/*************************************************************************************
Grid physics library, www.github.com/paboyle/Grid
Source file: ./tests/Test_simd.cc
Copyright (C) 2015
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 */
#include <Grid/Grid.h>
using namespace std;
using namespace Grid;
using namespace Grid::QCD;
class funcPlus {
public:
funcPlus() {};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { rr = i1+i2;}
std::string name(void) const { return std::string("Plus"); }
};
class funcMinus {
public:
funcMinus() {};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { rr = i1-i2;}
std::string name(void) const { return std::string("Minus"); }
};
class funcTimes {
public:
funcTimes() {};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { rr = i1*i2;}
std::string name(void) const { return std::string("Times"); }
};
class funcDivide {
public:
funcDivide() {};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { rr = i1/i2;}
std::string name(void) const { return std::string("Divide"); }
};
class funcConj {
public:
funcConj() {};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { rr = conjugate(i1);}
std::string name(void) const { return std::string("Conj"); }
};
class funcAdj {
public:
funcAdj() {};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { rr = adj(i1);}
std::string name(void) const { return std::string("Adj"); }
};
class funcImag {
public:
funcImag() {};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { rr = imag(i1);}
std::string name(void) const { return std::string("imag"); }
};
class funcReal {
public:
funcReal() {};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { rr = real(i1);}
std::string name(void) const { return std::string("real"); }
};
class funcTimesI {
public:
funcTimesI() {};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { rr = timesI(i1);}
std::string name(void) const { return std::string("timesI"); }
};
class funcTimesMinusI {
public:
funcTimesMinusI() {};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { rr = timesMinusI(i1);}
std::string name(void) const { return std::string("timesMinusI"); }
};
class funcInnerProduct {
public:
funcInnerProduct() {};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { rr = innerProduct(i1,i2);}
std::string name(void) const { return std::string("innerProduct"); }
};
// FIXME still to test:
//
// innerProduct,
// norm2,
// Reduce,
//
// mac,mult,sub,add, vone,vzero,vcomplex_i, =zero,
// vset,vsplat,vstore,vstream,vload, scalar*vec, vec*scalar
// unary -,
// *= , -=, +=
// outerproduct,
// zeroit
// permute
class funcReduce {
public:
funcReduce() {};
template<class reduce,class vec> void vfunc(reduce &rr,vec &i1,vec &i2) const { rr = Reduce(i1);}
template<class reduce,class scal> void sfunc(reduce &rr,scal &i1,scal &i2) const { rr = i1;}
std::string name(void) const { return std::string("Reduce"); }
};
template<class scal, class vec,class functor >
void Tester(const functor &func)
{
GridSerialRNG sRNG;
sRNG.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
int Nsimd = vec::Nsimd();
std::vector<scal> input1(Nsimd);
std::vector<scal> input2(Nsimd);
std::vector<scal> result(Nsimd);
std::vector<scal> reference(Nsimd);
std::vector<vec,alignedAllocator<vec> > buf(3);
vec & v_input1 = buf[0];
vec & v_input2 = buf[1];
vec & v_result = buf[2];
for(int i=0;i<Nsimd;i++){
random(sRNG,input1[i]);
random(sRNG,input2[i]);
random(sRNG,result[i]);
}
merge<vec,scal>(v_input1,input1);
merge<vec,scal>(v_input2,input2);
merge<vec,scal>(v_result,result);
func(v_result,v_input1,v_input2);
for(int i=0;i<Nsimd;i++) {
func(reference[i],input1[i],input2[i]);
}
extract<vec,scal>(v_result,result);
std::cout << GridLogMessage << " " << func.name() << std::endl;
std::cout << GridLogDebug << v_input1 << std::endl;
std::cout << GridLogDebug << v_input2 << std::endl;
std::cout << GridLogDebug << v_result << std::endl;
int ok=0;
for(int i=0;i<Nsimd;i++){
if ( abs(reference[i]-result[i])>1.0e-6){
std::cout<<GridLogMessage<< "*****" << std::endl;
std::cout<<GridLogMessage<< "["<<i<<"] "<< abs(reference[i]-result[i]) << " " <<reference[i]<< " " << result[i]<<std::endl;
ok++;
}
}
if ( ok==0 ) {
std::cout<<GridLogMessage << " OK!" <<std::endl;
}
assert(ok==0);
}
template<class functor>
void IntTester(const functor &func)
{
typedef Integer scal;
typedef vInteger vec;
GridSerialRNG sRNG;
sRNG.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
int Nsimd = vec::Nsimd();
std::vector<scal> input1(Nsimd);
std::vector<scal> input2(Nsimd);
std::vector<scal> result(Nsimd);
std::vector<scal> reference(Nsimd);
std::vector<vec,alignedAllocator<vec> > buf(3);
vec & v_input1 = buf[0];
vec & v_input2 = buf[1];
vec & v_result = buf[2];
for(int i=0;i<Nsimd;i++){
input1[i] = (i + 1) * 30;
input2[i] = (i + 1) * 20;
result[i] = (i + 1) * 10;
}
merge<vec,scal>(v_input1,input1);
merge<vec,scal>(v_input2,input2);
merge<vec,scal>(v_result,result);
func(v_result,v_input1,v_input2);
for(int i=0;i<Nsimd;i++) {
func(reference[i],input1[i],input2[i]);
}
extract<vec,scal>(v_result,result);
std::cout << GridLogMessage << " " << func.name() << std::endl;
std::cout << GridLogDebug << v_input1 << std::endl;
std::cout << GridLogDebug << v_input2 << std::endl;
std::cout << GridLogDebug << v_result << std::endl;
int ok=0;
for(int i=0;i<Nsimd;i++){
if ( reference[i]-result[i] != 0){
std::cout<<GridLogMessage<< "*****" << std::endl;
std::cout<<GridLogMessage<< "["<<i<<"] "<< reference[i]-result[i] << " " <<reference[i]<< " " << result[i]<<std::endl;
ok++;
}
}
if ( ok==0 ) {
std::cout<<GridLogMessage << " OK!" <<std::endl;
}
assert(ok==0);
}
template<class reduced,class scal, class vec,class functor >
void ReductionTester(const functor &func)
{
GridSerialRNG sRNG;
sRNG.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
int Nsimd = vec::Nsimd();
std::vector<scal> input1(Nsimd);
std::vector<scal> input2(Nsimd);
reduced result(0);
reduced reference(0);
reduced tmp;
std::vector<vec,alignedAllocator<vec> > buf(3);
vec & v_input1 = buf[0];
vec & v_input2 = buf[1];
for(int i=0;i<Nsimd;i++){
random(sRNG,input1[i]);
random(sRNG,input2[i]);
}
merge<vec,scal>(v_input1,input1);
merge<vec,scal>(v_input2,input2);
func.template vfunc<reduced,vec>(result,v_input1,v_input2);
for(int i=0;i<Nsimd;i++) {
func.template sfunc<reduced,scal>(tmp,input1[i],input2[i]);
reference+=tmp;
}
std::cout<<GridLogMessage << " " << func.name()<<std::endl;
int ok=0;
if ( abs(reference-result)/abs(reference) > 1.0e-6 ){ // rounding is possible for reduce order
std::cout<<GridLogMessage<< "*****" << std::endl;
std::cout<<GridLogMessage<< abs(reference-result) << " " <<reference<< " " << result<<std::endl;
ok++;
}
if ( ok==0 ) {
std::cout<<GridLogMessage << " OK!" <<std::endl;
}
assert(ok==0);
}
class funcPermute {
public:
int n;
funcPermute(int _n) { n=_n;};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { permute(rr,i1,n);}
template<class scal> void apply(std::vector<scal> &rr,std::vector<scal> &in) const {
int sz=in.size();
int msk = sz>>(n+1);
for(int i=0;i<sz;i++){
rr[i] = in[ i^msk ];
}
}
std::string name(void) const { return std::string("Permute"); }
};
class funcExchange {
public:
int n;
funcExchange(int _n) { n=_n;};
template<class vec> void operator()(vec &r1,vec &r2,vec &i1,vec &i2) const { exchange(r1,r2,i1,i2,n);}
template<class scal> void apply(std::vector<scal> &r1,
std::vector<scal> &r2,
std::vector<scal> &in1,
std::vector<scal> &in2) const
{
int sz=in1.size();
int msk = sz>>(n+1);
for(int i=0;i<sz;i++) {
int j1 = i&(~msk);
int j2 = i|msk;
if ( (i&msk) == 0 ) { r1[i]=in1[j1];}
else { r1[i]=in2[j1];}
if ( (i&msk) == 0 ) { r2[i]=in1[j2];}
else { r2[i]=in2[j2];}
}
}
std::string name(void) const { return std::string("Exchange"); }
};
class funcRotate {
public:
int n;
funcRotate(int _n) { n=_n;};
template<class vec> void operator()(vec &rr,vec &i1,vec &i2) const { rr=rotate(i1,n);}
template<class scal> void apply(std::vector<scal> &rr,std::vector<scal> &in) const {
int sz = in.size();
for(int i=0;i<sz;i++){
rr[i] = in[(i+n)%sz];
}
}
std::string name(void) const { return std::string("Rotate"); }
};
template<class scal, class vec,class functor >
void PermTester(const functor &func)
{
GridSerialRNG sRNG;
sRNG.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
int Nsimd = vec::Nsimd();
std::vector<scal> input1(Nsimd);
std::vector<scal> input2(Nsimd);
std::vector<scal> result(Nsimd);
std::vector<scal> reference(Nsimd);
std::vector<vec,alignedAllocator<vec> > buf(3);
vec & v_input1 = buf[0];
vec & v_input2 = buf[1];
vec & v_result = buf[2];
for(int i=0;i<Nsimd;i++){
random(sRNG,input1[i]);
random(sRNG,input2[i]);
random(sRNG,result[i]);
}
merge<vec,scal>(v_input1,input1);
merge<vec,scal>(v_input2,input2);
merge<vec,scal>(v_result,result);
func(v_result,v_input1,v_input2);
func.apply(reference,input1);
extract<vec,scal>(v_result,result);
std::cout<<GridLogMessage << " " << func.name() << " " <<func.n <<std::endl;
int ok=0;
if (0) {
std::cout<<GridLogMessage<< "*****" << std::endl;
for(int i=0;i<Nsimd;i++){
std::cout<< input1[i]<<" ";
}
std::cout <<std::endl;
for(int i=0;i<Nsimd;i++){
std::cout<< result[i]<<" ";
}
std::cout <<std::endl;
for(int i=0;i<Nsimd;i++){
std::cout<< reference[i]<<" ";
}
std::cout <<std::endl;
std::cout<<GridLogMessage<< "*****" << std::endl;
}
for(int i=0;i<Nsimd;i++){
if ( abs(reference[i]-result[i])>1.0e-7){
std::cout<<GridLogMessage<< "*****" << std::endl;
std::cout<<GridLogMessage<< "["<<i<<"] "<< abs(reference[i]-result[i]) << " " <<reference[i]<< " " << result[i]<<std::endl;
ok++;
}
}
if ( ok==0 ) {
std::cout<<GridLogMessage << " OK!" <<std::endl;
}
assert(ok==0);
}
template<class scal, class vec,class functor >
void ExchangeTester(const functor &func)
{
GridSerialRNG sRNG;
sRNG.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
int Nsimd = vec::Nsimd();
std::vector<scal> input1(Nsimd);
std::vector<scal> input2(Nsimd);
std::vector<scal> result1(Nsimd);
std::vector<scal> result2(Nsimd);
std::vector<scal> reference1(Nsimd);
std::vector<scal> reference2(Nsimd);
std::vector<scal> test1(Nsimd);
std::vector<scal> test2(Nsimd);
std::vector<vec,alignedAllocator<vec> > buf(6);
vec & v_input1 = buf[0];
vec & v_input2 = buf[1];
vec & v_result1 = buf[2];
vec & v_result2 = buf[3];
vec & v_test1 = buf[4];
vec & v_test2 = buf[5];
for(int i=0;i<Nsimd;i++){
random(sRNG,input1[i]);
random(sRNG,input2[i]);
random(sRNG,result1[i]);
random(sRNG,result2[i]);
}
merge<vec,scal>(v_input1,input1);
merge<vec,scal>(v_input2,input2);
merge<vec,scal>(v_result1,result1);
merge<vec,scal>(v_result2,result1);
func(v_result1,v_result2,v_input1,v_input2);
func.apply(reference1,reference2,input1,input2);
func(v_test1,v_test2,v_result1,v_result2);
extract<vec,scal>(v_result1,result1);
extract<vec,scal>(v_result2,result2);
extract<vec,scal>(v_test1,test1);
extract<vec,scal>(v_test2,test2);
std::cout<<GridLogMessage << " " << func.name() << " " <<func.n <<std::endl;
//for(int i=0;i<Nsimd;i++) std::cout << " i "<<i<<" ref "<<reference1[i]<<" res "<<result1[i]<<std::endl;
//for(int i=0;i<Nsimd;i++) std::cout << " i "<<i<<" ref "<<reference2[i]<<" res "<<result2[i]<<std::endl;
for(int i=0;i<Nsimd;i++){
int found=0;
for(int j=0;j<Nsimd;j++){
if(reference1[j]==result1[i]) {
found=1;
// std::cout << " i "<<i<<" j "<<j<<" "<<reference1[j]<<" "<<result1[i]<<std::endl;
}
}
// assert(found==1);
}
for(int i=0;i<Nsimd;i++){
int found=0;
for(int j=0;j<Nsimd;j++){
if(reference2[j]==result2[i]) {
found=1;
// std::cout << " i "<<i<<" j "<<j<<" "<<reference2[j]<<" "<<result2[i]<<std::endl;
}
}
// assert(found==1);
}
/*
for(int i=0;i<Nsimd;i++){
std::cout << " i "<< i
<<" result1 "<<result1[i]
<<" result2 "<<result2[i]
<<" test1 "<<test1[i]
<<" test2 "<<test2[i]
<<" input1 "<<input1[i]
<<" input2 "<<input2[i]<<std::endl;
}
*/
for(int i=0;i<Nsimd;i++){
assert(test1[i]==input1[i]);
assert(test2[i]==input2[i]);
}
}
int main (int argc, char ** argv)
{
Grid_init(&argc,&argv);
std::vector<int> latt_size = GridDefaultLatt();
std::vector<int> simd_layout = GridDefaultSimd(4,vComplex::Nsimd());
std::vector<int> mpi_layout = GridDefaultMpi();
GridCartesian Grid(latt_size,simd_layout,mpi_layout);
std::vector<int> seeds({1,2,3,4});
// Insist that operations on random scalars gives
// identical results to on vectors.
std::cout << GridLogMessage <<"==================================="<< std::endl;
std::cout << GridLogMessage <<"Testing vRealF "<<std::endl;
std::cout << GridLogMessage <<"==================================="<< std::endl;
Tester<RealF,vRealF>(funcPlus());
Tester<RealF,vRealF>(funcMinus());
Tester<RealF,vRealF>(funcTimes());
Tester<RealF,vRealF>(funcDivide());
Tester<RealF,vRealF>(funcAdj());
Tester<RealF,vRealF>(funcConj());
Tester<RealF,vRealF>(funcInnerProduct());
ReductionTester<RealF,RealF,vRealF>(funcReduce());
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vRealF permutes "<<std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
// Log2 iteration
for(int i=0;(1<<i)< vRealF::Nsimd();i++){
PermTester<RealF,vRealF>(funcPermute(i));
}
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vRealF exchanges "<<std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
// Log2 iteration
for(int i=0;(1<<i)< vRealF::Nsimd();i++){
ExchangeTester<RealF,vRealF>(funcExchange(i));
}
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vRealF rotate "<<std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
for(int r=0;r<vRealF::Nsimd();r++){
PermTester<RealF,vRealF>(funcRotate(r));
}
std::cout << GridLogMessage <<"==================================="<< std::endl;
std::cout << GridLogMessage <<"Testing vRealD "<<std::endl;
std::cout << GridLogMessage <<"==================================="<< std::endl;
Tester<RealD,vRealD>(funcPlus());
Tester<RealD,vRealD>(funcMinus());
Tester<RealD,vRealD>(funcTimes());
Tester<RealD,vRealD>(funcDivide());
Tester<RealD,vRealD>(funcAdj());
Tester<RealD,vRealD>(funcConj());
Tester<RealD,vRealD>(funcInnerProduct());
ReductionTester<RealD,RealD,vRealD>(funcReduce());
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vRealD permutes "<<std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
// Log2 iteration
for(int i=0;(1<<i)< vRealD::Nsimd();i++){
PermTester<RealD,vRealD>(funcPermute(i));
}
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vRealD exchanges "<<std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
// Log2 iteration
for(int i=0;(1<<i)< vRealD::Nsimd();i++){
ExchangeTester<RealD,vRealD>(funcExchange(i));
}
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vRealD rotate "<<std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
for(int r=0;r<vRealD::Nsimd();r++){
PermTester<RealD,vRealD>(funcRotate(r));
}
std::cout << GridLogMessage <<"==================================="<< std::endl;
std::cout << GridLogMessage <<"Testing vComplexF "<<std::endl;
std::cout << GridLogMessage <<"==================================="<< std::endl;
Tester<ComplexF,vComplexF>(funcTimesI());
Tester<ComplexF,vComplexF>(funcTimesMinusI());
Tester<ComplexF,vComplexF>(funcPlus());
Tester<ComplexF,vComplexF>(funcMinus());
Tester<ComplexF,vComplexF>(funcTimes());
Tester<ComplexF,vComplexF>(funcConj());
Tester<ComplexF,vComplexF>(funcAdj());
Tester<ComplexF,vComplexF>(funcReal());
Tester<ComplexF,vComplexF>(funcImag());
Tester<ComplexF,vComplexF>(funcInnerProduct());
ReductionTester<ComplexF,ComplexF,vComplexF>(funcReduce());
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vComplexF permutes "<<std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
// Log2 iteration
for(int i=0;(1<<i)< vComplexF::Nsimd();i++){
PermTester<ComplexF,vComplexF>(funcPermute(i));
}
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vComplexF exchanges "<<std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
// Log2 iteration
for(int i=0;(1<<i)< vComplexF::Nsimd();i++){
ExchangeTester<ComplexF,vComplexF>(funcExchange(i));
}
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vComplexF rotate "<<std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
for(int r=0;r<vComplexF::Nsimd();r++){
PermTester<ComplexF,vComplexF>(funcRotate(r));
}
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vComplexD "<<std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
Tester<ComplexD,vComplexD>(funcTimesI());
Tester<ComplexD,vComplexD>(funcTimesMinusI());
Tester<ComplexD,vComplexD>(funcPlus());
Tester<ComplexD,vComplexD>(funcMinus());
Tester<ComplexD,vComplexD>(funcTimes());
Tester<ComplexD,vComplexD>(funcConj());
Tester<ComplexD,vComplexD>(funcAdj());
Tester<ComplexD, vComplexD>(funcReal());
Tester<ComplexD, vComplexD>(funcImag());
Tester<ComplexD, vComplexD>(funcInnerProduct());
ReductionTester<ComplexD, ComplexD, vComplexD>(funcReduce());
std::cout << GridLogMessage
<< "===================================" << std::endl;
std::cout << GridLogMessage << "Testing vComplexD permutes " << std::endl;
std::cout << GridLogMessage
<< "===================================" << std::endl;
// Log2 iteration
for (int i = 0; (1 << i) < vComplexD::Nsimd(); i++) {
PermTester<ComplexD, vComplexD>(funcPermute(i));
}
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vComplexD exchanges "<<std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
// Log2 iteration
for(int i=0;(1<<i)< vComplexD::Nsimd();i++){
ExchangeTester<ComplexD,vComplexD>(funcExchange(i));
}
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vComplexD rotate "<<std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
for(int r=0;r<vComplexD::Nsimd();r++){
PermTester<ComplexD,vComplexD>(funcRotate(r));
}
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing vInteger "<< std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
IntTester(funcPlus());
IntTester(funcMinus());
IntTester(funcTimes());
std::cout<<GridLogMessage << "==================================="<< std::endl;
std::cout<<GridLogMessage << "Testing precisionChange "<< std::endl;
std::cout<<GridLogMessage << "==================================="<< std::endl;
{
GridSerialRNG sRNG;
sRNG.SeedFixedIntegers(std::vector<int>({45,12,81,9}));
const int Ndp = 16;
const int Nsp = Ndp/2;
const int Nhp = Ndp/4;
std::vector<vRealH,alignedAllocator<vRealH> > H (Nhp);
std::vector<vRealF,alignedAllocator<vRealF> > F (Nsp);
std::vector<vRealF,alignedAllocator<vRealF> > FF(Nsp);
std::vector<vRealD,alignedAllocator<vRealD> > D (Ndp);
std::vector<vRealD,alignedAllocator<vRealD> > DD(Ndp);
for(int i=0;i<16;i++){
random(sRNG,D[i]);
}
// Double to Single
precisionChange(&F[0],&D[0],Ndp);
precisionChange(&DD[0],&F[0],Ndp);
std::cout << GridLogMessage<<"Double to single";
for(int i=0;i<Ndp;i++){
// std::cout << "DD["<<i<<"] = "<< DD[i]<<" "<<D[i]<<" "<<DD[i]-D[i] <<std::endl;
DD[i] = DD[i] - D[i];
decltype(innerProduct(DD[0],DD[0])) nrm;
nrm = innerProduct(DD[i],DD[i]);
auto tmp = Reduce(nrm);
// std::cout << tmp << std::endl;
assert( tmp < 1.0e-14 );
}
std::cout <<" OK ! "<<std::endl;
// Double to Half
#ifdef USE_FP16
std::cout << GridLogMessage<< "Double to half" ;
precisionChange(&H[0],&D[0],Ndp);
precisionChange(&DD[0],&H[0],Ndp);
for(int i=0;i<Ndp;i++){
// std::cout << "DD["<<i<<"] = "<< DD[i]<<" "<<D[i]<<" "<<DD[i]-D[i]<<std::endl;
DD[i] = DD[i] - D[i];
decltype(innerProduct(DD[0],DD[0])) nrm;
nrm = innerProduct(DD[i],DD[i]);
auto tmp = Reduce(nrm);
// std::cout << tmp << std::endl;
assert( tmp < 1.0e-3 );
}
std::cout <<" OK ! "<<std::endl;
std::cout << GridLogMessage<< "Single to half";
// Single to Half
precisionChange(&H[0] ,&F[0],Nsp);
precisionChange(&FF[0],&H[0],Nsp);
for(int i=0;i<Nsp;i++){
// std::cout << "FF["<<i<<"] = "<< FF[i]<<" "<<F[i]<<" "<<FF[i]-F[i]<<std::endl;
FF[i] = FF[i] - F[i];
decltype(innerProduct(FF[0],FF[0])) nrm;
nrm = innerProduct(FF[i],FF[i]);
auto tmp = Reduce(nrm);
// std::cout << tmp << std::endl;
assert( tmp < 1.0e-3 );
}
std::cout <<" OK ! "<<std::endl;
#endif
}
Grid_finalize();
}
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