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lammps/lib/kokkos/core/unit_test/TestComplex.hpp
2020-12-22 08:52:37 -07:00

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/*
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// ************************************************************************
//
// Kokkos v. 3.0
// Copyright (2020) National Technology & Engineering
// Solutions of Sandia, LLC (NTESS).
//
// Under the terms of Contract DE-NA0003525 with NTESS,
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//
// 3. Neither the name of the Corporation nor the names of the
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*/
#include <Kokkos_Core.hpp>
#include <cstdio>
#include <sstream>
namespace Test {
// Test construction and assignment
template <class ExecSpace>
struct TestComplexConstruction {
Kokkos::View<Kokkos::complex<double> *, ExecSpace> d_results;
typename Kokkos::View<Kokkos::complex<double> *, ExecSpace>::HostMirror
h_results;
void testit() {
d_results = Kokkos::View<Kokkos::complex<double> *, ExecSpace>(
"TestComplexConstruction", 10);
h_results = Kokkos::create_mirror_view(d_results);
Kokkos::parallel_for(Kokkos::RangePolicy<ExecSpace>(0, 1), *this);
Kokkos::fence();
Kokkos::deep_copy(h_results, d_results);
ASSERT_FLOAT_EQ(h_results(0).real(), 1.5);
ASSERT_FLOAT_EQ(h_results(0).imag(), 2.5);
ASSERT_FLOAT_EQ(h_results(1).real(), 1.5);
ASSERT_FLOAT_EQ(h_results(1).imag(), 2.5);
ASSERT_FLOAT_EQ(h_results(2).real(), 0.0);
ASSERT_FLOAT_EQ(h_results(2).imag(), 0.0);
ASSERT_FLOAT_EQ(h_results(3).real(), 3.5);
ASSERT_FLOAT_EQ(h_results(3).imag(), 0.0);
ASSERT_FLOAT_EQ(h_results(4).real(), 4.5);
ASSERT_FLOAT_EQ(h_results(4).imag(), 5.5);
ASSERT_FLOAT_EQ(h_results(5).real(), 1.5);
ASSERT_FLOAT_EQ(h_results(5).imag(), 2.5);
ASSERT_FLOAT_EQ(h_results(6).real(), 4.5);
ASSERT_FLOAT_EQ(h_results(6).imag(), 5.5);
ASSERT_FLOAT_EQ(h_results(7).real(), 7.5);
ASSERT_FLOAT_EQ(h_results(7).imag(), 0.0);
ASSERT_FLOAT_EQ(h_results(8).real(), double(8));
ASSERT_FLOAT_EQ(h_results(8).imag(), 0.0);
// Copy construction conversion between
// Kokkos::complex and std::complex doesn't compile
Kokkos::complex<double> a(1.5, 2.5), b(3.25, 5.25), r_kk;
std::complex<double> sa(a), sb(3.25, 5.25), r;
r = a;
r_kk = a;
ASSERT_FLOAT_EQ(r.real(), r_kk.real());
ASSERT_FLOAT_EQ(r.imag(), r_kk.imag());
r = sb * a;
r_kk = b * a;
ASSERT_FLOAT_EQ(r.real(), r_kk.real());
ASSERT_FLOAT_EQ(r.imag(), r_kk.imag());
r = sa;
r_kk = a;
ASSERT_FLOAT_EQ(r.real(), r_kk.real());
ASSERT_FLOAT_EQ(r.imag(), r_kk.imag());
}
KOKKOS_INLINE_FUNCTION
void operator()(const int & /*i*/) const {
Kokkos::complex<double> a(1.5, 2.5);
d_results(0) = a;
Kokkos::complex<double> b(a);
d_results(1) = b;
Kokkos::complex<double> c = Kokkos::complex<double>();
d_results(2) = c;
Kokkos::complex<double> d(3.5);
d_results(3) = d;
volatile Kokkos::complex<double> a_v(4.5, 5.5);
d_results(4) = a_v;
volatile Kokkos::complex<double> b_v(a);
d_results(5) = b_v;
Kokkos::complex<double> e(a_v);
d_results(6) = e;
d_results(7) = double(7.5);
d_results(8) = int(8);
}
};
TEST(TEST_CATEGORY, complex_construction) {
TestComplexConstruction<TEST_EXECSPACE> test;
test.testit();
}
// Test Math FUnction
template <class ExecSpace>
struct TestComplexBasicMath {
Kokkos::View<Kokkos::complex<double> *, ExecSpace> d_results;
typename Kokkos::View<Kokkos::complex<double> *, ExecSpace>::HostMirror
h_results;
void testit() {
d_results = Kokkos::View<Kokkos::complex<double> *, ExecSpace>(
"TestComplexBasicMath", 24);
h_results = Kokkos::create_mirror_view(d_results);
Kokkos::parallel_for(Kokkos::RangePolicy<ExecSpace>(0, 1), *this);
Kokkos::fence();
Kokkos::deep_copy(h_results, d_results);
std::complex<double> a(1.5, 2.5);
std::complex<double> b(3.25, 5.75);
std::complex<double> d(1.0, 2.0);
double c = 9.3;
int e = 2;
std::complex<double> r;
r = a + b;
ASSERT_FLOAT_EQ(h_results(0).real(), r.real());
ASSERT_FLOAT_EQ(h_results(0).imag(), r.imag());
r = a - b;
ASSERT_FLOAT_EQ(h_results(1).real(), r.real());
ASSERT_FLOAT_EQ(h_results(1).imag(), r.imag());
r = a * b;
ASSERT_FLOAT_EQ(h_results(2).real(), r.real());
ASSERT_FLOAT_EQ(h_results(2).imag(), r.imag());
r = a / b;
#ifndef KOKKOS_WORKAROUND_OPENMPTARGET_CLANG
ASSERT_FLOAT_EQ(h_results(3).real(), r.real());
ASSERT_FLOAT_EQ(h_results(3).imag(), r.imag());
#endif
r = d + a;
ASSERT_FLOAT_EQ(h_results(4).real(), r.real());
ASSERT_FLOAT_EQ(h_results(4).imag(), r.imag());
r = d - a;
ASSERT_FLOAT_EQ(h_results(5).real(), r.real());
ASSERT_FLOAT_EQ(h_results(5).imag(), r.imag());
r = d * a;
ASSERT_FLOAT_EQ(h_results(6).real(), r.real());
ASSERT_FLOAT_EQ(h_results(6).imag(), r.imag());
r = d / a;
ASSERT_FLOAT_EQ(h_results(7).real(), r.real());
ASSERT_FLOAT_EQ(h_results(7).imag(), r.imag());
r = a + c;
ASSERT_FLOAT_EQ(h_results(8).real(), r.real());
ASSERT_FLOAT_EQ(h_results(8).imag(), r.imag());
r = a - c;
ASSERT_FLOAT_EQ(h_results(9).real(), r.real());
ASSERT_FLOAT_EQ(h_results(9).imag(), r.imag());
r = a * c;
ASSERT_FLOAT_EQ(h_results(10).real(), r.real());
ASSERT_FLOAT_EQ(h_results(10).imag(), r.imag());
r = a / c;
ASSERT_FLOAT_EQ(h_results(11).real(), r.real());
ASSERT_FLOAT_EQ(h_results(11).imag(), r.imag());
r = d + c;
ASSERT_FLOAT_EQ(h_results(12).real(), r.real());
ASSERT_FLOAT_EQ(h_results(12).imag(), r.imag());
r = d - c;
ASSERT_FLOAT_EQ(h_results(13).real(), r.real());
ASSERT_FLOAT_EQ(h_results(13).imag(), r.imag());
r = d * c;
ASSERT_FLOAT_EQ(h_results(14).real(), r.real());
ASSERT_FLOAT_EQ(h_results(14).imag(), r.imag());
r = d / c;
ASSERT_FLOAT_EQ(h_results(15).real(), r.real());
ASSERT_FLOAT_EQ(h_results(15).imag(), r.imag());
r = c + a;
ASSERT_FLOAT_EQ(h_results(16).real(), r.real());
ASSERT_FLOAT_EQ(h_results(16).imag(), r.imag());
r = c - a;
ASSERT_FLOAT_EQ(h_results(17).real(), r.real());
ASSERT_FLOAT_EQ(h_results(17).imag(), r.imag());
r = c * a;
ASSERT_FLOAT_EQ(h_results(18).real(), r.real());
ASSERT_FLOAT_EQ(h_results(18).imag(), r.imag());
r = c / a;
#ifndef KOKKOS_WORKAROUND_OPENMPTARGET_CLANG
ASSERT_FLOAT_EQ(h_results(19).real(), r.real());
ASSERT_FLOAT_EQ(h_results(19).imag(), r.imag());
#endif
r = a;
/* r = a+e; */ ASSERT_FLOAT_EQ(h_results(20).real(), r.real() + e);
ASSERT_FLOAT_EQ(h_results(20).imag(), r.imag());
/* r = a-e; */ ASSERT_FLOAT_EQ(h_results(21).real(), r.real() - e);
ASSERT_FLOAT_EQ(h_results(21).imag(), r.imag());
/* r = a*e; */ ASSERT_FLOAT_EQ(h_results(22).real(), r.real() * e);
ASSERT_FLOAT_EQ(h_results(22).imag(), r.imag() * e);
/* r = a/e; */ ASSERT_FLOAT_EQ(h_results(23).real(), r.real() / 2);
ASSERT_FLOAT_EQ(h_results(23).imag(), r.imag() / e);
}
KOKKOS_INLINE_FUNCTION
void operator()(const int & /*i*/) const {
Kokkos::complex<double> a(1.5, 2.5);
Kokkos::complex<double> b(3.25, 5.75);
// Basic math complex / complex
d_results(0) = a + b;
d_results(1) = a - b;
d_results(2) = a * b;
d_results(3) = a / b;
d_results(4).real(1.0);
d_results(4).imag(2.0);
d_results(4) += a;
d_results(5) = Kokkos::complex<double>(1.0, 2.0);
d_results(5) -= a;
d_results(6) = Kokkos::complex<double>(1.0, 2.0);
d_results(6) *= a;
d_results(7) = Kokkos::complex<double>(1.0, 2.0);
d_results(7) /= a;
// Basic math complex / scalar
double c = 9.3;
d_results(8) = a + c;
d_results(9) = a - c;
d_results(10) = a * c;
d_results(11) = a / c;
d_results(12).real(1.0);
d_results(12).imag(2.0);
d_results(12) += c;
d_results(13) = Kokkos::complex<double>(1.0, 2.0);
d_results(13) -= c;
d_results(14) = Kokkos::complex<double>(1.0, 2.0);
d_results(14) *= c;
d_results(15) = Kokkos::complex<double>(1.0, 2.0);
d_results(15) /= c;
// Basic math scalar / complex
d_results(16) = c + a;
d_results(17) = c - a;
d_results(18) = c * a;
d_results(19) = c / a;
int e = 2;
d_results(20) = a + e;
d_results(21) = a - e;
d_results(22) = a * e;
d_results(23) = a / e;
}
};
TEST(TEST_CATEGORY, complex_basic_math) {
TestComplexBasicMath<TEST_EXECSPACE> test;
test.testit();
}
template <class ExecSpace>
struct TestComplexSpecialFunctions {
Kokkos::View<Kokkos::complex<double> *, ExecSpace> d_results;
typename Kokkos::View<Kokkos::complex<double> *, ExecSpace>::HostMirror
h_results;
void testit() {
d_results = Kokkos::View<Kokkos::complex<double> *, ExecSpace>(
"TestComplexSpecialFunctions", 20);
h_results = Kokkos::create_mirror_view(d_results);
Kokkos::parallel_for(Kokkos::RangePolicy<ExecSpace>(0, 1), *this);
Kokkos::fence();
Kokkos::deep_copy(h_results, d_results);
std::complex<double> a(1.5, 2.5);
double c = 9.3;
std::complex<double> r;
r = a;
ASSERT_FLOAT_EQ(h_results(0).real(), r.real());
ASSERT_FLOAT_EQ(h_results(0).imag(), r.imag());
r = std::sqrt(a);
ASSERT_FLOAT_EQ(h_results(1).real(), r.real());
ASSERT_FLOAT_EQ(h_results(1).imag(), r.imag());
r = std::pow(a, c);
ASSERT_FLOAT_EQ(h_results(2).real(), r.real());
ASSERT_FLOAT_EQ(h_results(2).imag(), r.imag());
r = std::abs(a);
ASSERT_FLOAT_EQ(h_results(3).real(), r.real());
ASSERT_FLOAT_EQ(h_results(3).imag(), r.imag());
r = std::exp(a);
ASSERT_FLOAT_EQ(h_results(4).real(), r.real());
ASSERT_FLOAT_EQ(h_results(4).imag(), r.imag());
r = Kokkos::exp(a);
ASSERT_FLOAT_EQ(h_results(4).real(), r.real());
ASSERT_FLOAT_EQ(h_results(4).imag(), r.imag());
#ifndef KOKKOS_WORKAROUND_OPENMPTARGET_CLANG
r = std::log(a);
ASSERT_FLOAT_EQ(h_results(5).real(), r.real());
ASSERT_FLOAT_EQ(h_results(5).imag(), r.imag());
r = std::sin(a);
ASSERT_FLOAT_EQ(h_results(6).real(), r.real());
ASSERT_FLOAT_EQ(h_results(6).imag(), r.imag());
r = std::cos(a);
ASSERT_FLOAT_EQ(h_results(7).real(), r.real());
ASSERT_FLOAT_EQ(h_results(7).imag(), r.imag());
r = std::tan(a);
ASSERT_FLOAT_EQ(h_results(8).real(), r.real());
ASSERT_FLOAT_EQ(h_results(8).imag(), r.imag());
r = std::sinh(a);
ASSERT_FLOAT_EQ(h_results(9).real(), r.real());
ASSERT_FLOAT_EQ(h_results(9).imag(), r.imag());
r = std::cosh(a);
ASSERT_FLOAT_EQ(h_results(10).real(), r.real());
ASSERT_FLOAT_EQ(h_results(10).imag(), r.imag());
r = std::tanh(a);
ASSERT_FLOAT_EQ(h_results(11).real(), r.real());
ASSERT_FLOAT_EQ(h_results(11).imag(), r.imag());
r = std::asinh(a);
ASSERT_FLOAT_EQ(h_results(12).real(), r.real());
ASSERT_FLOAT_EQ(h_results(12).imag(), r.imag());
r = std::acosh(a);
ASSERT_FLOAT_EQ(h_results(13).real(), r.real());
ASSERT_FLOAT_EQ(h_results(13).imag(), r.imag());
r = std::atanh(a);
ASSERT_FLOAT_EQ(h_results(14).real(), r.real());
ASSERT_FLOAT_EQ(h_results(14).imag(), r.imag());
r = std::asin(a);
ASSERT_FLOAT_EQ(h_results(15).real(), r.real());
ASSERT_FLOAT_EQ(h_results(15).imag(), r.imag());
r = std::acos(a);
ASSERT_FLOAT_EQ(h_results(16).real(), r.real());
ASSERT_FLOAT_EQ(h_results(16).imag(), r.imag());
r = std::atan(a);
ASSERT_FLOAT_EQ(h_results(17).real(), r.real());
ASSERT_FLOAT_EQ(h_results(17).imag(), r.imag());
#endif
}
KOKKOS_INLINE_FUNCTION
void operator()(const int & /*i*/) const {
Kokkos::complex<double> a(1.5, 2.5);
Kokkos::complex<double> b(3.25, 5.75);
double c = 9.3;
d_results(0) = Kokkos::complex<double>(Kokkos::real(a), Kokkos::imag(a));
d_results(1) = Kokkos::sqrt(a);
d_results(2) = Kokkos::pow(a, c);
d_results(3) = Kokkos::abs(a);
d_results(4) = Kokkos::exp(a);
d_results(5) = Kokkos::log(a);
d_results(6) = Kokkos::sin(a);
d_results(7) = Kokkos::cos(a);
d_results(8) = Kokkos::tan(a);
d_results(9) = Kokkos::sinh(a);
d_results(10) = Kokkos::cosh(a);
d_results(11) = Kokkos::tanh(a);
d_results(12) = Kokkos::asinh(a);
d_results(13) = Kokkos::acosh(a);
d_results(14) = Kokkos::atanh(a);
d_results(15) = Kokkos::asin(a);
d_results(16) = Kokkos::acos(a);
d_results(17) = Kokkos::atan(a);
}
};
void testComplexIO() {
Kokkos::complex<double> z = {3.14, 1.41};
std::stringstream ss;
ss << z;
ASSERT_EQ(ss.str(), "(3.14,1.41)");
ss.str("1 (2) (3,4)");
ss.clear();
ss >> z;
ASSERT_EQ(z, (Kokkos::complex<double>{1, 0}));
ss >> z;
ASSERT_EQ(z, (Kokkos::complex<double>{2, 0}));
ss >> z;
ASSERT_EQ(z, (Kokkos::complex<double>{3, 4}));
}
TEST(TEST_CATEGORY, complex_special_funtions) {
TestComplexSpecialFunctions<TEST_EXECSPACE> test;
test.testit();
}
TEST(TEST_CATEGORY, complex_io) { testComplexIO(); }
TEST(TEST_CATEGORY, complex_trivially_copyable) {
using RealType = double;
// Kokkos::complex<RealType> is trivially copyable when RealType is
// trivially copyable
// Simply disable the check for IBM's XL compiler since we can't reliably
// check for a version that defines relevant functions.
#if !defined(__ibmxl__)
// clang claims compatibility with gcc 4.2.1 but all versions tested know
// about std::is_trivially_copyable.
ASSERT_TRUE(std::is_trivially_copyable<Kokkos::complex<RealType>>::value ||
!std::is_trivially_copyable<RealType>::value);
#endif
}
} // namespace Test