Files
lammps/lib/kokkos/core/unit_test/TestDeepCopy.hpp
2019-06-28 11:23:24 -06:00

168 lines
6.5 KiB
C++

#include<Kokkos_Core.hpp>
namespace Test {
namespace Impl {
template<class MemorySpaceA, class MemorySpaceB>
struct TestDeepCopy {
typedef Kokkos::View<double*, Kokkos::LayoutRight, MemorySpaceA> a_base_t;
typedef Kokkos::View<double*, Kokkos::LayoutRight, MemorySpaceB> b_base_t;
typedef Kokkos::View<char*, Kokkos::LayoutRight, MemorySpaceA> a_char_t;
typedef Kokkos::View<char*, Kokkos::LayoutRight, MemorySpaceB> b_char_t;
typedef Kokkos::RangePolicy<typename MemorySpaceA::execution_space> policyA_t;
typedef Kokkos::RangePolicy<typename MemorySpaceB::execution_space> policyB_t;
static void reset_a_copy_and_b(Kokkos::View<char*, Kokkos::LayoutRight, MemorySpaceA> a_char_copy, Kokkos::View<char*, Kokkos::LayoutRight, MemorySpaceB> b_char) {
const int N = b_char.extent(0);
Kokkos::parallel_for("TestDeepCopy: FillA_copy",policyA_t(0,N), KOKKOS_LAMBDA (const int& i) {
a_char_copy(i) = char(0);
});
Kokkos::parallel_for("TestDeepCopy: FillB",policyB_t(0,N), KOKKOS_LAMBDA (const int& i) {
b_char(i) = char(0);
});
}
static int compare_equal(Kokkos::View<char*, Kokkos::LayoutRight, MemorySpaceA> a_char_copy, Kokkos::View<char*, Kokkos::LayoutRight, MemorySpaceA> a_char) {
const int N = a_char.extent(0);
int errors;
Kokkos::parallel_reduce("TestDeepCopy: FillA_copy",policyA_t(0,N), KOKKOS_LAMBDA (const int& i, int& lsum) {
if(a_char_copy(i) != a_char(i)) lsum++;
},errors);
return errors;
}
static void run_test(int num_bytes) {
a_base_t a_base("test_space_to_space",(num_bytes+128)/8);
a_base_t a_base_copy("test_space_to_space",(num_bytes+128)/8);
Kokkos::View<double*, Kokkos::LayoutRight, MemorySpaceB> b_base("test_space_to_space",(num_bytes+128)/8);
Kokkos::View<char*, Kokkos::LayoutRight, MemorySpaceA> a_char((char*) a_base.data(),a_base.extent(0)*8);
Kokkos::View<char*, Kokkos::LayoutRight, MemorySpaceA> a_char_copy((char*) a_base_copy.data(),a_base.extent(0)*8);
Kokkos::View<char*, Kokkos::LayoutRight, MemorySpaceB> b_char((char*) b_base.data(),b_base.extent(0)*8);
Kokkos::parallel_for("TestDeepCopy: FillA",policyA_t(0,a_char.extent(0)), KOKKOS_LAMBDA (const int& i) {
a_char(i) = static_cast<char>(i%97)+1;
});
reset_a_copy_and_b(a_char_copy, b_char);
{
int check = compare_equal(a_char_copy,a_char);
ASSERT_EQ( check, a_char.extent(0) );
}
// (a.data()%8, (a.data()+a.extent(0))%8, b.data()%8, (b.data()+b.extent(0))%8
// (0,0,0,0)
{
int a_begin = 0;
int a_end = 0;
int b_begin = 0;
int b_end = 0;
auto a = Kokkos::subview(a_char,std::pair<int,int>(a_begin,a_char.extent(0)-a_end));
auto b = Kokkos::subview(b_char,std::pair<int,int>(b_begin,b_char.extent(0)-b_end));
auto a_copy = Kokkos::subview(a_char_copy,std::pair<int,int>(a_begin,a_char_copy.extent(0)-a_end));
Kokkos::deep_copy(b,a);
Kokkos::deep_copy(a_copy,b);
int check = compare_equal(a_copy,a);
ASSERT_EQ( check, 0 );
}
{
int a_begin = 0;
int a_end = 5;
int b_begin = 0;
int b_end = 5;
auto a = Kokkos::subview(a_char,std::pair<int,int>(a_begin,a_char.extent(0)-a_end));
auto b = Kokkos::subview(b_char,std::pair<int,int>(b_begin,b_char.extent(0)-b_end));
auto a_copy = Kokkos::subview(a_char_copy,std::pair<int,int>(a_begin,a_char_copy.extent(0)-a_end));
Kokkos::deep_copy(b,a);
Kokkos::deep_copy(a_copy,b);
int check = compare_equal(a_copy,a);
ASSERT_EQ( check, 0 );
}
{
int a_begin = 3;
int a_end = 0;
int b_begin = 3;
int b_end = 0;
auto a = Kokkos::subview(a_char,std::pair<int,int>(a_begin,a_char.extent(0)-a_end));
auto b = Kokkos::subview(b_char,std::pair<int,int>(b_begin,b_char.extent(0)-b_end));
auto a_copy = Kokkos::subview(a_char_copy,std::pair<int,int>(a_begin,a_char_copy.extent(0)-a_end));
Kokkos::deep_copy(b,a);
Kokkos::deep_copy(a_copy,b);
int check = compare_equal(a_copy,a);
ASSERT_EQ( check, 0 );
}
{
int a_begin = 3;
int a_end = 6;
int b_begin = 3;
int b_end = 6;
auto a = Kokkos::subview(a_char,std::pair<int,int>(a_begin,a_char.extent(0)-a_end));
auto b = Kokkos::subview(b_char,std::pair<int,int>(b_begin,b_char.extent(0)-b_end));
auto a_copy = Kokkos::subview(a_char_copy,std::pair<int,int>(a_begin,a_char_copy.extent(0)-a_end));
Kokkos::deep_copy(b,a);
Kokkos::deep_copy(a_copy,b);
int check = compare_equal(a_copy,a);
ASSERT_EQ( check, 0 );
}
{
int a_begin = 5;
int a_end = 4;
int b_begin = 3;
int b_end = 6;
auto a = Kokkos::subview(a_char,std::pair<int,int>(a_begin,a_char.extent(0)-a_end));
auto b = Kokkos::subview(b_char,std::pair<int,int>(b_begin,b_char.extent(0)-b_end));
auto a_copy = Kokkos::subview(a_char_copy,std::pair<int,int>(a_begin,a_char_copy.extent(0)-a_end));
Kokkos::deep_copy(b,a);
Kokkos::deep_copy(a_copy,b);
int check = compare_equal(a_copy,a);
ASSERT_EQ( check, 0 );
}
{
int a_begin = 0;
int a_end = 8;
int b_begin = 2;
int b_end = 6;
auto a = Kokkos::subview(a_char,std::pair<int,int>(a_begin,a_char.extent(0)-a_end));
auto b = Kokkos::subview(b_char,std::pair<int,int>(b_begin,b_char.extent(0)-b_end));
auto a_copy = Kokkos::subview(a_char_copy,std::pair<int,int>(a_begin,a_char_copy.extent(0)-a_end));
Kokkos::deep_copy(b,a);
Kokkos::deep_copy(a_copy,b);
int check = compare_equal(a_copy,a);
ASSERT_EQ( check, 0 );
}
{
int a_begin = 2;
int a_end = 6;
int b_begin = 0;
int b_end = 8;
auto a = Kokkos::subview(a_char,std::pair<int,int>(a_begin,a_char.extent(0)-a_end));
auto b = Kokkos::subview(b_char,std::pair<int,int>(b_begin,b_char.extent(0)-b_end));
auto a_copy = Kokkos::subview(a_char_copy,std::pair<int,int>(a_begin,a_char_copy.extent(0)-a_end));
Kokkos::deep_copy(b,a);
Kokkos::deep_copy(a_copy,b);
int check = compare_equal(a_copy,a);
ASSERT_EQ( check, 0 );
}
}
};
}
TEST_F( TEST_CATEGORY, deep_copy_alignment )
{
{ Impl::TestDeepCopy< TEST_EXECSPACE::memory_space , TEST_EXECSPACE::memory_space >::run_test( 100000 ); }
{ Impl::TestDeepCopy< Kokkos::HostSpace , TEST_EXECSPACE::memory_space >::run_test( 100000 ); }
{ Impl::TestDeepCopy< TEST_EXECSPACE::memory_space , Kokkos::HostSpace >::run_test( 100000 ); }
}
}