Added SIMD tests

This commit is contained in:
Christophe Riccio 2018-08-19 11:24:56 +02:00
parent 0c6473ac5c
commit 133b1f9223
5 changed files with 76 additions and 4 deletions

View File

@ -13,6 +13,7 @@ if(GLM_TEST_ENABLE)
add_subdirectory(ext) add_subdirectory(ext)
add_subdirectory(gtc) add_subdirectory(gtc)
add_subdirectory(gtx) add_subdirectory(gtx)
add_subdirectory(perf)
endif() endif()

View File

@ -42,7 +42,3 @@ glmCreateTestGTC(core_setup_force_cxx98)
glmCreateTestGTC(core_setup_force_size_t_length) glmCreateTestGTC(core_setup_force_size_t_length)
glmCreateTestGTC(core_setup_message) glmCreateTestGTC(core_setup_message)
glmCreateTestGTC(core_setup_precision) glmCreateTestGTC(core_setup_precision)
glmCreateTestGTC(core_setup_simd)

2
test/perf/CMakeLists.txt Normal file
View File

@ -0,0 +1,2 @@
glmCreateTestGTC(perf_matrix_mul)
glmCreateTestGTC(perf_matrix_div)

View File

@ -0,0 +1,73 @@
#define GLM_FORCE_INLINE
#include <glm/ext/matrix_float4x4.hpp>
#include <glm/ext/matrix_transform.hpp>
#include <glm/ext/matrix_relational.hpp>
#include <glm/ext/vector_float4.hpp>
#if GLM_CONFIG_SIMD == GLM_ENABLE
#include <glm/gtc/type_aligned.hpp>
#include <vector>
#include <chrono>
#include <cstdio>
template <typename matType>
static void test_mat_mul_mat(matType const& M, std::vector<matType> const& I, std::vector<matType>& O)
{
for (std::size_t i = 0, n = I.size(); i < n; ++i)
O[i] = M * I[i];
}
template <typename matType>
static int launch_mat_mul_mat(std::vector<matType>& O, matType const& Transform, matType const& Scale, std::size_t Samples)
{
typedef typename matType::value_type T;
std::vector<matType> I(Samples);
O.resize(Samples);
for(std::size_t i = 0; i < Samples; ++i)
I[i] = Scale * static_cast<T>(i);
std::chrono::high_resolution_clock::time_point t1 = std::chrono::high_resolution_clock::now();
test_mat_mul_mat<matType>(Transform, I, O);
std::chrono::high_resolution_clock::time_point t2 = std::chrono::high_resolution_clock::now();
return static_cast<int>(std::chrono::duration_cast<std::chrono::microseconds>(t2 - t1).count());
}
static int comp_mat_mul_mat(std::size_t Samples)
{
int Error = 0;
glm::mat4 const Transform(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16);
glm::mat4 const Scale(0.01, 0.02, 0.03, 0.05, 0.01, 0.02, 0.03, 0.05, 0.01, 0.02, 0.03, 0.05, 0.01, 0.02, 0.03, 0.05);
std::vector<glm::mat4> Mat4SISD;
printf("mat4 * mat4 (SISD) duration %d us\n", launch_mat_mul_mat<glm::mat4>(Mat4SISD, Transform, Scale, Samples));
std::vector<glm::aligned_mat4> Mat4SIMD;
printf("mat4 * mat4 (SIMD) duration %d us\n", launch_mat_mul_mat<glm::aligned_mat4>(Mat4SIMD, Transform, Scale, Samples));
for(std::size_t i = 0; i < Samples; ++i)
Error += glm::all(glm::equal(Mat4SISD[i], Mat4SIMD[i], 0.001)) ? 0 : 1;
return Error;
}
int main()
{
std::size_t const Samples = 100000;
int Error = 0;
Error += comp_mat_mul_mat(Samples);
return Error;
}
#else
int main()
{
return 0;
}
#endif