diff --git a/paddle/framework/tensor_util.h b/paddle/framework/tensor_util.h index 5b474e4aef6d8ef714a59052abd55bc439605f6d..ebfb0e553877b776afe13d8a4e7a7ffa8710405e 100644 --- a/paddle/framework/tensor_util.h +++ b/paddle/framework/tensor_util.h @@ -82,6 +82,28 @@ inline void CopyFrom(const Tensor& src, const platform::Place& dst_place, #endif } +/** + * @brief CopyFrom support CPU <-> CPU + */ +inline void CopyFrom(const Tensor& src, const platform::Place& dst_place, + Tensor* dst) { + src.check_memory_size(); + dst->Resize(src.dims()); + + auto src_place = src.place(); + auto src_ptr = src.data(); + + auto dst_ptr = dst->mutable_data(dst_place, src.type()); + + auto size = src.numel() * SizeOfType(src.type()); + + PADDLE_ENFORCE(platform::is_cpu_place(src_place) && + platform::is_cpu_place(dst_place)); + + memory::Copy(boost::get(dst_place), dst_ptr, + boost::get(src_place), src_ptr, size); +} + /** * @brief Copy the content of an external vector to a tensor. * @@ -115,6 +137,21 @@ inline void CopyFromVector(const std::vector& src, #endif } +/** + * @brief CopyFromVector CPU vector -> CPU Tensor + */ +template +inline void CopyFromVector(const std::vector& src, Tensor* dst) { + platform::CPUPlace dst_place = platform::CPUPlace(); + auto src_ptr = static_cast(src.data()); + platform::CPUPlace src_place; + dst->Resize({static_cast(src.size())}); + auto dst_ptr = static_cast(dst->mutable_data(dst_place)); + auto size = src.size() * sizeof(T); + + memory::Copy(dst_place, dst_ptr, src_place, src_ptr, size); +} + /** * @brief Copy the content of a tensor to a vector * @@ -148,5 +185,23 @@ inline void CopyToVector(const Tensor& src, const platform::DeviceContext& ctx, #endif } +/** + * @brief CopyToVector CPUTensor <-> CPU Vector + */ +template +inline void CopyToVector(const Tensor& src, std::vector* dst) { + auto src_ptr = static_cast(src.data()); + auto size = src.numel() * sizeof(T); + + platform::CPUPlace dst_place; + dst->resize(src.numel()); + auto dst_ptr = static_cast(dst->data()); + + PADDLE_ENFORCE(platform::is_cpu_place(src.place())); + + memory::Copy(dst_place, dst_ptr, boost::get(src.place()), + src_ptr, size); +} + } // namespace framework } // namespace paddle diff --git a/paddle/framework/tensor_util_test.cc b/paddle/framework/tensor_util_test.cc index 3afb98a4a52f8cff335833cfb589a87b2d8d2ef2..6fc243aaf6ea68d716e7bb6a73289197fde56247 100644 --- a/paddle/framework/tensor_util_test.cc +++ b/paddle/framework/tensor_util_test.cc @@ -17,6 +17,7 @@ namespace paddle { namespace framework { + TEST(CopyFrom, Tensor) { Tensor src_tensor; Tensor dst_tensor; @@ -29,7 +30,7 @@ TEST(CopyFrom, Tensor) { memcpy(src_ptr, arr, 9 * sizeof(int)); auto cpu_place = new platform::CPUPlace(); - CopyFrom(src_tensor, *cpu_place, cpu_ctx, &dst_tensor); + CopyFrom(src_tensor, *cpu_place, &dst_tensor); const int* dst_ptr = dst_tensor.data(); ASSERT_NE(src_ptr, dst_ptr); @@ -104,8 +105,7 @@ TEST(CopyFromVector, Tensor) { // Copy to CPU Tensor cpu_tensor.Resize(make_ddim({3, 3})); auto cpu_place = new paddle::platform::CPUPlace(); - CPUDeviceContext cpu_ctx(*cpu_place); - CopyFromVector(src_vec, cpu_ctx, &cpu_tensor); + CopyFromVector(src_vec, &cpu_tensor); // Compare Tensors const int* cpu_ptr = cpu_tensor.data(); @@ -117,7 +117,7 @@ TEST(CopyFromVector, Tensor) { src_vec.erase(src_vec.begin(), src_vec.begin() + 5); cpu_tensor.Resize(make_ddim({2, 2})); - CopyFromVector(src_vec, cpu_ctx, &cpu_tensor); + CopyFromVector(src_vec, &cpu_tensor); cpu_ptr = cpu_tensor.data(); src_ptr = src_vec.data(); ASSERT_NE(src_ptr, cpu_ptr); @@ -198,9 +198,8 @@ TEST(CopyToVector, Tensor) { } CPUPlace place; - CPUDeviceContext cpu_ctx(place); std::vector dst; - CopyToVector(src, cpu_ctx, &dst); + CopyToVector(src, &dst); for (int i = 0; i < 3 * 3; ++i) { EXPECT_EQ(src_ptr[i], dst[i]);