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diff --git a/src/runtime/cpu/operators/CpuFullyConnected.cpp b/src/runtime/cpu/operators/CpuFullyConnected.cpp
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-/*
- * Copyright (c) 2021 Arm Limited.
- *
- * SPDX-License-Identifier: MIT
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation the
- * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
- * sell copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
- */
-#include "src/runtime/cpu/operators/CpuFullyConnected.h"
-
-#include "arm_compute/core/Helpers.h"
-#include "arm_compute/core/ITensorPack.h"
-#include "arm_compute/core/Validate.h"
-#include "arm_compute/core/utils/misc/ShapeCalculator.h"
-#include "arm_compute/core/utils/quantization/AsymmHelpers.h"
-#include "arm_compute/runtime/NEON/NEScheduler.h"
-#include "src/core/cpu/kernels/CpuTransposeKernel.h"
-#include "src/core/helpers/AutoConfiguration.h"
-#include "src/core/helpers/MemoryHelpers.h"
-#include "src/runtime/cpu/operators/CpuConvertFullyConnectedWeights.h"
-#include "src/runtime/cpu/operators/CpuFlatten.h"
-#include "src/runtime/cpu/operators/CpuGemm.h"
-#include "src/runtime/cpu/operators/CpuGemmLowpMatrixMultiplyCore.h"
-#include "src/runtime/cpu/utils/CpuAuxTensorHandler.h"
-
-namespace arm_compute
-{
-namespace cpu
-{
-using namespace arm_compute::experimental;
-using namespace arm_compute::misc::shape_calculator;
-
-namespace
-{
-// Get min, max bound of a quantized asymmetric dst tensor, with the effect of fused activation
-std::pair<PixelValue, PixelValue> get_quantized_asymmetric_output_min_max(const QuantizationInfo &q_info, const ActivationLayerInfo &act_info, DataType data_type)
-{
- PixelValue type_min{};
- PixelValue type_max{};
- std::tie(type_min, type_max) = get_min_max(data_type);
- const UniformQuantizationInfo q_unif = q_info.uniform();
-
- if(act_info.enabled())
- {
- switch(act_info.activation())
- {
- case ActivationLayerInfo::ActivationFunction::RELU:
- type_min = PixelValue(q_unif.offset);
- break;
- case ActivationLayerInfo::ActivationFunction::BOUNDED_RELU:
- type_min = PixelValue(q_unif.offset);
- type_max = PixelValue(act_info.a(), data_type, q_info);
- break;
- case ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU:
- type_min = PixelValue(act_info.b(), data_type, q_info);
- type_max = PixelValue(act_info.a(), data_type, q_info);
- break;
- default:
- ARM_COMPUTE_ERROR("Activation function not supported.");
- break;
- }
- }
-
- return std::make_pair(type_min, type_max);
-}
-
-Status get_gemmlowp_output_stage_info(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *dst, const ActivationLayerInfo &act,
- GEMMLowpOutputStageInfo &gemmlowp_output_stage_info)
-{
- const auto data_type = src->data_type();
- const QuantizationInfo oq_info = dst->quantization_info();
- const UniformQuantizationInfo iq_unif = src->quantization_info().uniform();
- const UniformQuantizationInfo wq_unif = weights->quantization_info().uniform();
- const UniformQuantizationInfo oq_unif = oq_info.uniform();
-
- float multiplier = (iq_unif.scale * wq_unif.scale) / oq_unif.scale;
- int32_t output_multiplier;
- int32_t output_shift;
-
- ARM_COMPUTE_RETURN_ON_ERROR(quantization::calculate_quantized_multiplier(multiplier, &output_multiplier, &output_shift));
-
- PixelValue type_min{};
- PixelValue type_max{};
- std::tie(type_min, type_max) = get_quantized_asymmetric_output_min_max(oq_info, act, data_type);
-
- gemmlowp_output_stage_info.gemmlowp_multiplier = output_multiplier;
- gemmlowp_output_stage_info.gemmlowp_shift = output_shift;
- gemmlowp_output_stage_info.gemmlowp_offset = oq_unif.offset;
- gemmlowp_output_stage_info.type = GEMMLowpOutputStageType::QUANTIZE_DOWN_FIXEDPOINT;
- gemmlowp_output_stage_info.gemmlowp_min_bound = type_min.get<int32_t>();
- gemmlowp_output_stage_info.gemmlowp_max_bound = type_max.get<int32_t>();
-
- return Status{};
-}
-
-Status validate_mm(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *biases, const ITensorInfo *dst, const ActivationLayerInfo &act)
-{
- if(is_data_type_quantized_asymmetric(src->data_type()))
- {
- // Since we need negative offsets for computing convolution, we need to change QuantizationInfo()
- // Extract and negate src and weights offset
- const QuantizationInfo src_quantization_info(src->quantization_info().uniform().scale, -src->quantization_info().uniform().offset);
- const QuantizationInfo weights_quantization_info(weights->quantization_info().uniform().scale, -weights->quantization_info().uniform().offset);
-
- GEMMLowpOutputStageInfo gemmlowp_output_stage_info;
- ARM_COMPUTE_RETURN_ON_ERROR(get_gemmlowp_output_stage_info(src, weights, dst, act, gemmlowp_output_stage_info));
-
- GEMMInfo gemm_info;
- gemm_info.set_gemmlowp_output_stage(gemmlowp_output_stage_info);
-
- // Validate gemmlowp function
- TensorInfo src_info = src->clone()->set_quantization_info(src_quantization_info);
- TensorInfo weights_info = weights->clone()->set_quantization_info(weights_quantization_info);
- ARM_COMPUTE_RETURN_ON_ERROR(CpuGemmLowpMatrixMultiplyCore::validate(&src_info,
- &weights_info,
- biases,
- dst,
- gemm_info));
- }
- else
- {
- ARM_COMPUTE_RETURN_ON_ERROR(CpuGemm::validate(src, weights, biases, dst, 1.f, 1.0f, GEMMInfo(false, false, true /* Reshape weights only for the first run */)));
- }
-
- return Status{};
-}
-} // namespace
-
-CpuFullyConnected::CpuFullyConnected()
- : _flatten(nullptr),
- _convert_weights(nullptr),
- _transpose_weights(nullptr),
- _mm_gemm(nullptr),
- _mm_gemmlowp(nullptr),
- _flattened_src(),
- _converted_weights(),
- _reshaped_weights(),
- _trans_weights(),
- _trans_weights_idx(AuxTensorIdx::Count),
- _aux_mem(Count),
- _needs_weights_conversion(false),
- _needs_weights_reshape(false),
- _is_fc_after_conv(false),
- _is_quantized_asymmetric(false),
- _is_prepared(false)
-
-{
-}
-
-CpuFullyConnected::~CpuFullyConnected() = default;
-
-void CpuFullyConnected::configure_mm(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *biases, ITensorInfo *dst, const ActivationLayerInfo &act)
-{
- if(_is_quantized_asymmetric)
- {
- // Since we need negative offsets for computing convolution, we need to change QuantizationInfo()
- // Extract and negate src and weights offset
- const QuantizationInfo src_quantization_info(src->quantization_info().uniform().scale, -src->quantization_info().uniform().offset);
- const QuantizationInfo weights_quantization_info(weights->quantization_info().uniform().scale, -weights->quantization_info().uniform().offset);
-
- TensorInfo src_info = src->clone()->set_quantization_info(src_quantization_info);
- TensorInfo weights_info = weights->clone()->set_quantization_info(weights_quantization_info);
-
- // Configure gemmlowp function and output stage for asymmetric quantized types
- GEMMLowpOutputStageInfo gemmlowp_output_stage_info;
- const Status status = get_gemmlowp_output_stage_info(&src_info, &weights_info, dst, act, gemmlowp_output_stage_info);
- ARM_COMPUTE_ERROR_ON(status.error_code() != ErrorCode::OK);
-
- GEMMInfo gemm_info;
- gemm_info.set_gemmlowp_output_stage(gemmlowp_output_stage_info);
- gemm_info.set_activation_info(act);
- _mm_gemmlowp = std::make_unique<CpuGemmLowpMatrixMultiplyCore>();
- _mm_gemmlowp->configure(&src_info, &weights_info, biases, dst, gemm_info);
- }
- else
- {
- // Configure matrix multiply kernel
- GEMMInfo gemm_info(false, false, true /* Reshape weights only for the first run */);
- gemm_info.set_activation_info(act);
- _mm_gemm = std::make_unique<CpuGemm>();
- _mm_gemm->configure(src, weights, biases, dst, 1.f, 1.0f, gemm_info);
- }
-}
-
-void CpuFullyConnected::configure_conv_fc(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *biases, ITensorInfo *dst, const ActivationLayerInfo &act)
-{
- ARM_COMPUTE_ERROR_ON((weights->dimension(1) != (src->dimension(0) * src->dimension(1) * src->dimension(2))));
-
- // If the fully connected layer is called after a convolution layer, the src tensor must be linearized
-
- // Initialize output tensor for flatten
- auto_init_if_empty(_flattened_src, src->clone()->set_tensor_shape(compute_flatten_shape(src)));
-
- _flatten = std::make_unique<CpuFlatten>();
- _flatten->configure(src, &_flattened_src);
-
- // Configure matrix multiply kernel
- configure_mm(&_flattened_src, weights, biases, dst, act);
-}
-
-void CpuFullyConnected::configure_fc_fc(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *biases, ITensorInfo *dst, const ActivationLayerInfo &act)
-{
- ARM_COMPUTE_ERROR_ON(src->dimension(0) != weights->dimension(1));
-
- // Configure matrix multiply kernel
- configure_mm(src, weights, biases, dst, act);
-}
-
-void CpuFullyConnected::configure(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *biases, ITensorInfo *dst,
- FullyConnectedLayerInfo fc_info)
-{
- // Perform validate step
- ARM_COMPUTE_ERROR_ON_NULLPTR(src, weights, dst);
- ARM_COMPUTE_ERROR_THROW_ON(CpuFullyConnected::validate(src,
- weights,
- biases != nullptr ? biases : nullptr,
- dst,
- fc_info));
-
- _needs_weights_conversion = false;
- _needs_weights_reshape = fc_info.transpose_weights ? !fc_info.are_weights_reshaped : false;
- _needs_weights_reshape = _needs_weights_reshape && !fc_info.retain_internal_weights;
- _is_fc_after_conv = true;
- _is_quantized_asymmetric = is_data_type_quantized_asymmetric(src->data_type());
- _is_prepared = false;
- _trans_weights_idx = AuxTensorIdx::Count;
-
- // With the Fully Connected layer we can have 4 different cases:
- // 1) Convolution layer -> Fully Connected layer without batches
- // 2) Fully Connected layer -> Fully Connected layer without batches
- // 3) Convolution layer -> Fully Connected layer with batches
- // 4) Fully Connected layer -> Fully Connected layer with batches
-
- const ITensorInfo *weights_to_use = weights;
-
- // Check if we have a fully connected layer with batches
- const bool is_batched_fc_layer = dst->dimension(1) > 1;
- if(is_batched_fc_layer)
- {
- _is_fc_after_conv = (TensorShape::num_max_dimensions >= 4) && (std::equal(src->tensor_shape().cbegin() + 3,
- src->tensor_shape().cend(),
- dst->tensor_shape().cbegin() + 1));
- }
- else
- {
- _is_fc_after_conv = src->num_dimensions() > 1;
- }
-
- // Reshape weights if needed
- if(_needs_weights_reshape)
- {
- // Reshape the weights
- _transpose_weights = std::make_unique<kernels::CpuTransposeKernel>();
- _transpose_weights->configure(weights, &_reshaped_weights);
- weights_to_use = &_reshaped_weights;
- _trans_weights_idx = AuxTensorIdx::TransposedWeights;
- }
-
- // Convert weights if needed
- if(_is_fc_after_conv && (src->data_layout() != fc_info.weights_trained_layout))
- {
- // Convert weights
- _convert_weights = std::make_unique<CpuConvertFullyConnectedWeights>();
- _convert_weights->configure(weights_to_use,
- &_converted_weights,
- src->tensor_shape(),
- fc_info.weights_trained_layout);
-
- weights_to_use = &_converted_weights;
- _needs_weights_conversion = true;
- _trans_weights_idx = AuxTensorIdx::ConvertedWeights;
- }
-
- if(_is_fc_after_conv)
- {
- // Fully Connected layer after a Convolution Layer without batches
- configure_conv_fc(src, weights_to_use, biases, dst, fc_info.activation_info);
- }
- else
- {
- // Fully Connected layer after a Fully Connected Layer without batches
- configure_fc_fc(src, weights_to_use, biases, dst, fc_info.activation_info);
- }
-
- // Retain the tensorinfo with the weights to use
- if(_needs_weights_reshape || _needs_weights_conversion)
- {
- _trans_weights = *weights_to_use;
- }
-
- // Set auxiliary memory requirements
- auto gemm_mem_req = (_is_quantized_asymmetric) ? _mm_gemmlowp->workspace() : _mm_gemm->workspace();
- for(unsigned int i = 0; i < gemm_mem_req.size(); ++i)
- {
- _aux_mem[i] = gemm_mem_req[i];
- }
-
- if(_aux_mem[Pretranspose].size > 0)
- {
- // Release permuted weights at the of prepare as they are further transposed by the assembly dispatch
- _aux_mem[TransposedWeights] = MemoryInfo(offset_int_vec(TransposedWeights), MemoryLifetime::Prepare, _reshaped_weights.total_size());
- _aux_mem[ConvertedWeights] = MemoryInfo(offset_int_vec(ConvertedWeights), MemoryLifetime::Prepare, _converted_weights.total_size());
- }
- else
- {
- _aux_mem[TransposedWeights] = MemoryInfo(offset_int_vec(TransposedWeights), _needs_weights_conversion ? MemoryLifetime::Prepare : MemoryLifetime::Persistent, _reshaped_weights.total_size());
- _aux_mem[ConvertedWeights] = MemoryInfo(offset_int_vec(ConvertedWeights), MemoryLifetime::Persistent, _converted_weights.total_size());
- }
- _aux_mem[FlattenedSrc] = MemoryInfo(offset_int_vec(FlattenedSrc), MemoryLifetime::Temporary, _flattened_src.total_size());
-}
-
-Status CpuFullyConnected::validate(const ITensorInfo *src, const ITensorInfo *weights, const ITensorInfo *biases, const ITensorInfo *dst,
- FullyConnectedLayerInfo fc_info)
-{
- ARM_COMPUTE_UNUSED(fc_info.retain_internal_weights);
- ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(src, weights, dst);
- ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(src, 1, DataType::QASYMM8, DataType::QASYMM8_SIGNED, DataType::F16, DataType::F32);
- ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(src, weights, dst);
- ARM_COMPUTE_RETURN_ERROR_ON(weights->num_dimensions() > 2);
- ARM_COMPUTE_RETURN_ERROR_ON(biases != nullptr && biases->num_dimensions() > 1);
- ARM_COMPUTE_RETURN_ERROR_ON(fc_info.activation_info.enabled() && is_data_type_quantized(src->data_type()) && fc_info.activation_info.activation() != ActivationLayerInfo::ActivationFunction::RELU
- && fc_info.activation_info.activation() != ActivationLayerInfo::ActivationFunction::BOUNDED_RELU && fc_info.activation_info.activation() != ActivationLayerInfo::ActivationFunction::LU_BOUNDED_RELU);
- ARM_COMPUTE_RETURN_ERROR_ON_MSG(!fc_info.constant_weights, "Non-constant weights are currently not supported");
-
- bool weights_reshaped = fc_info.transpose_weights ? fc_info.are_weights_reshaped : true;
- bool is_fc_after_conv = true;
-
- const ITensorInfo &flatten_src = TensorInfo(src->clone()->set_is_resizable(true).reset_padding().set_tensor_shape(compute_flatten_shape(src)));
- const ITensorInfo &reshaped_weights = TensorInfo(weights->clone()->set_is_resizable(true).reset_padding().set_tensor_shape(compute_transposed_shape(*weights)));
- const ITensorInfo &converted_weights = weights_reshaped ? TensorInfo(weights->clone()->set_is_resizable(true).reset_padding()) : TensorInfo(*reshaped_weights.clone());
-
- // With the Fully Connected layer we can have 4 different cases:
- // 1) Convolution layer -> Fully Connected layer without batches
- // 2) Fully Connected layer -> Fully Connected layer without batches
- // 3) Convolution layer -> Fully Connected layer with batches
- // 4) Fully Connected layer -> Fully Connected layer with batches
-
- const ITensorInfo *src_to_use = src;
- const ITensorInfo *weights_to_use = weights;
-
- // Check if we have a fully connected layer with batches
- const bool is_batched_fc_layer = dst->dimension(1) > 1;
-
- if(is_batched_fc_layer)
- {
- is_fc_after_conv = (TensorShape::num_max_dimensions >= 4) && (std::equal(src->tensor_shape().cbegin() + 3,
- src->tensor_shape().cend(),
- dst->tensor_shape().cbegin() + 1));
- }
- else
- {
- is_fc_after_conv = src->num_dimensions() > 1;
- }
-
- if(!weights_reshaped)
- {
- // Validate reshape weights kernel
- ARM_COMPUTE_RETURN_ON_ERROR(kernels::CpuTransposeKernel::validate(weights, &reshaped_weights));
- weights_to_use = &reshaped_weights;
- }
-
- if(is_fc_after_conv && (src->data_layout() != fc_info.weights_trained_layout))
- {
- // Validate convert weights kernel
- ARM_COMPUTE_RETURN_ON_ERROR(CpuConvertFullyConnectedWeights::validate(weights_to_use,
- &converted_weights,
- src->tensor_shape(),
- fc_info.weights_trained_layout));
- weights_to_use = &converted_weights;
- }
-
- if(is_fc_after_conv)
- {
- // Fully Connected layer after a Convolution Layer without batches
- ARM_COMPUTE_RETURN_ERROR_ON((weights_to_use->dimension(1) != (src->dimension(0) * src->dimension(1) * src->dimension(2))));
-
- // Validate flatten kernel
- ARM_COMPUTE_RETURN_ON_ERROR(CpuFlatten::validate(src, &flatten_src));
- src_to_use = &flatten_src;
- }
- else
- {
- // Fully Connected layer after a Fully Connected Layer without batches
- ARM_COMPUTE_RETURN_ERROR_ON(src->dimension(0) != weights_to_use->dimension(1));
- }
- // Validate matrix multiply kernel
- ARM_COMPUTE_RETURN_ON_ERROR(validate_mm(src_to_use, weights_to_use, biases, dst, fc_info.activation_info));
-
- return Status{};
-}
-
-void CpuFullyConnected::run(ITensorPack &tensors)
-{
- prepare(tensors);
-
- auto src = tensors.get_const_tensor(ACL_SRC_0);
-
- CpuAuxTensorHandler flattened_src(offset_int_vec(FlattenedSrc), _flattened_src, tensors, false);
- CpuAuxTensorHandler transformed_wei(offset_int_vec(_trans_weights_idx), _trans_weights, tensors, false);
-
- // Linearize src if it comes from a convolutional layer
- if(_is_fc_after_conv)
- {
- ITensorPack flatten_pack{ { ACL_SRC, src }, { ACL_DST, flattened_src.get() } };
- _flatten->run(flatten_pack);
- }
-
- ITensorPack gemm_pack = tensors;
- gemm_pack.add_const_tensor(ACL_SRC_0, (_is_fc_after_conv) ? flattened_src.get() : src);
- if(_needs_weights_reshape || _needs_weights_conversion)
- {
- gemm_pack.add_const_tensor(ACL_SRC_1, transformed_wei.get());
- }
-
- // Run matrix multiply
- if(_is_quantized_asymmetric)
- {
- _mm_gemmlowp->run(gemm_pack);
- }
- else
- {
- _mm_gemm->run(gemm_pack);
- }
-}
-
-void CpuFullyConnected::prepare(ITensorPack &tensors)
-{
- if(!_is_prepared)
- {
- auto weights = tensors.get_const_tensor(ACL_SRC_1);
-
- CpuAuxTensorHandler reshaped_weights(offset_int_vec(TransposedWeights), _reshaped_weights, tensors, false);
- CpuAuxTensorHandler converted_weights(offset_int_vec(ConvertedWeights), _converted_weights, tensors, false);
-
- // Pointer to current weights
- const ITensor *cur_weights = weights;
-
- // Reshape of the weights (happens only once)
- if(_needs_weights_reshape)
- {
- // Run reshape weights kernel and mark weights as unused
- ITensorPack transpose_pack{ { ACL_SRC, weights }, { ACL_DST, reshaped_weights.get() } };
- NEScheduler::get().schedule_op(_transpose_weights.get(), Window::DimY, _transpose_weights->window(), transpose_pack);
-
- cur_weights->mark_as_unused();
- cur_weights = reshaped_weights.get();
- }
-
- // Convert weights if needed (happens only once)
- if(_needs_weights_conversion)
- {
- ITensorPack convert_pack{ { ACL_SRC, cur_weights }, { ACL_DST, converted_weights.get() } };
- _convert_weights->run(convert_pack);
-
- cur_weights->mark_as_unused();
- cur_weights = converted_weights.get();
- }
-
- ITensorPack gemm_pack = tensors;
- gemm_pack.add_const_tensor(ACL_SRC_1, cur_weights);
-
- // Prepare GEMM prepare and release unused weights
- if(!_is_quantized_asymmetric)
- {
- _mm_gemm->prepare(gemm_pack);
- }
- else
- {
- _mm_gemmlowp->prepare(gemm_pack);
- }
-
- _is_prepared = true;
- }
-}
-
-experimental::MemoryRequirements CpuFullyConnected::workspace() const
-{
- return _aux_mem;
-}
-} // namespace cpu
-} // namespace arm_compute