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Merge pull request #3247 from OXPHOS/linalg_benchmark
Linalg benchmark
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#include <shogun/base/init.h> | ||
#include <shogun/lib/SGVector.h> | ||
#include <shogun/mathematics/linalgrefactor/linalgRefactor.h> | ||
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#include <shogun/mathematics/eigen3.h> | ||
#include <viennacl/linalg/inner_prod.hpp> | ||
#include <viennacl/vector.hpp> | ||
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#include <algorithm> | ||
#include <memory> | ||
#include <hayai/hayai.hpp> | ||
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#include <iostream> | ||
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using namespace shogun; | ||
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/** | ||
* Instructions : | ||
* 1. Install benchmarking toolkit "hayai" (https://github.com/nickbruun/hayai) | ||
* 2. Compile against libhayai_main, e.g. | ||
* g++ -O3 -std=c++11 linglg_refactor_benchmark.cpp -I/usr/include/eigen3 \ | ||
* -lshogun -lhayai_main -lOpenCL -o benchmark | ||
* 3. ./benchmark | ||
*/ | ||
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/** Generate data only once */ | ||
typedef float32_t T; | ||
typedef viennacl::vector_base<T, std::size_t, std::ptrdiff_t> VCLVectorBase; | ||
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template<typename value_type> | ||
struct Data | ||
{ | ||
typedef viennacl::backend::mem_handle VCLMemoryArray; | ||
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Data() | ||
{ | ||
num_rows = 100; | ||
init(); | ||
} | ||
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Data(index_t num_rows) | ||
{ | ||
this->num_rows = num_rows; | ||
init(); | ||
} | ||
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~Data() | ||
{ | ||
exit_shogun(); | ||
} | ||
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void init() | ||
{ | ||
A = init_sg(1); | ||
B = init_sg(2); | ||
Av = init_v(A); | ||
Bv = init_v(B); | ||
Ac = std::unique_ptr<BaseVector<value_type>> (init_c(A)); | ||
Bc = std::unique_ptr<BaseVector<value_type>> (init_c(B)); | ||
Ag = std::unique_ptr<BaseVector<value_type>> (init_g(A)); | ||
Bg = std::unique_ptr<BaseVector<value_type>> (init_g(B)); | ||
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init_shogun_with_defaults(); | ||
GPUBackend viennaclBackend; | ||
sg_linalg->set_gpu_backend(&viennaclBackend); | ||
} | ||
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/** SGVector **/ | ||
SGVector<value_type> init_sg(value_type begin) | ||
{ | ||
SGVector<value_type> m(num_rows); | ||
m.range_fill(begin); | ||
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return m; | ||
} | ||
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/** ViennaCL Vector for test **/ | ||
VCLVectorBase init_v(SGVector<value_type> m) | ||
{ | ||
VCLVectorBase mv; | ||
std::shared_ptr<VCLMemoryArray> vector(new VCLMemoryArray()); | ||
viennacl::backend::memory_create(*vector, sizeof(value_type)*num_rows, | ||
viennacl::context()); | ||
viennacl::backend::memory_write(*vector, 0, num_rows*sizeof(value_type), | ||
m.vector); | ||
mv = VCLVectorBase(*vector, num_rows, 0, 1); | ||
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return mv; | ||
} | ||
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/** CPUVector derived from BaseVector **/ | ||
std::unique_ptr<BaseVector<value_type>> init_c(SGVector<value_type> m) | ||
{ | ||
std::unique_ptr<CPUVector<value_type>> mc(new CPUVector<value_type>(m)); | ||
return std::move(mc); | ||
} | ||
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/** GPUVector derived from BaseVector **/ | ||
std::unique_ptr<BaseVector<value_type>> init_g(SGVector<value_type> m) | ||
{ | ||
std::unique_ptr<GPU_Vector<value_type>> mg(new GPU_Vector<value_type>(m)); | ||
return std::move(mg); | ||
} | ||
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SGVector<value_type> A; | ||
SGVector<value_type> B; | ||
VCLVectorBase Av; | ||
VCLVectorBase Bv; | ||
std::unique_ptr<BaseVector<value_type>> Ac; | ||
std::unique_ptr<BaseVector<value_type>> Bc; | ||
std::unique_ptr<BaseVector<value_type>> Ag; | ||
std::unique_ptr<BaseVector<value_type>> Bg; | ||
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index_t num_rows; | ||
}; | ||
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BENCHMARK_P(CPUVector, dot_explict_eigen3, 10, 1000, | ||
(const SGVector<T> &A, const SGVector<T> &B)) | ||
{ | ||
typedef Eigen::Matrix<T, Eigen::Dynamic, 1> VectorXt; | ||
Eigen::Map<VectorXt> vec_A(A.vector, A.vlen); | ||
Eigen::Map<VectorXt> vec_B(B.vector, B.vlen); | ||
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auto C = vec_A.dot(vec_B); | ||
} | ||
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BENCHMARK_P(CPUVector, dot_eigen3, 10, 1000, | ||
(BaseVector<T> *A, BaseVector<T> *B)) | ||
{ | ||
auto C = sg_linalg->dot(A, B); | ||
} | ||
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BENCHMARK_P(GPU_Vector, dot_explict_viennacl, 10, 1000, | ||
(const VCLVectorBase &A, const VCLVectorBase &B)) | ||
{ | ||
auto C = viennacl::linalg::inner_prod(A, B); | ||
} | ||
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BENCHMARK_P(GPU_Vector, dot_viennacl, 10, 1000, | ||
(BaseVector<T> *A, BaseVector<T> *B)) | ||
{ | ||
auto C = sg_linalg->dot(A, B); | ||
} | ||
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Data<T> data(1000000); | ||
BENCHMARK_P_INSTANCE(CPUVector, dot_explict_eigen3, (data.A, data.B)); | ||
BENCHMARK_P_INSTANCE(CPUVector, dot_eigen3, (data.Ac.get(), data.Bc.get())); | ||
BENCHMARK_P_INSTANCE(GPU_Vector, dot_explict_viennacl, (data.Av, data.Bv)); | ||
BENCHMARK_P_INSTANCE(GPU_Vector, dot_viennacl, (data.Ag.get(), data.Bg.get())); |