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gru_arm.cpp
1509 lines (1231 loc) · 57.1 KB
/
gru_arm.cpp
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// Tencent is pleased to support the open source community by making ncnn available.
//
// Copyright (C) 2021 THL A29 Limited, a Tencent company. All rights reserved.
//
// Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// https://opensource.org/licenses/BSD-3-Clause
//
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
// specific language governing permissions and limitations under the License.
#include "gru_arm.h"
#if __ARM_NEON
#include <arm_neon.h>
#endif // __ARM_NEON
#include "arm_activation.h"
#include "arm_usability.h"
#include "cpu.h"
namespace ncnn {
GRU_arm::GRU_arm()
{
#if __ARM_NEON
#if NCNN_ARM82
support_fp16_storage = cpu_support_arm_asimdhp();
#endif
#endif // __ARM_NEON
#if NCNN_BF16
support_bf16_storage = true;
#endif
}
int GRU_arm::create_pipeline(const Option& opt)
{
#if NCNN_ARM82
if (support_fp16_storage && opt.use_fp16_storage)
{
return create_pipeline_fp16s(opt);
}
#endif
#if NCNN_BF16
if (opt.use_bf16_storage)
{
return create_pipeline_bf16s(opt);
}
#endif
// pack RUN
int num_directions = direction == 2 ? 2 : 1;
int size = weight_data_size / num_directions / num_output / 3;
#if __ARM_NEON
weight_xc_data_packed.create(size * 12, num_output / 4 + num_output % 4, num_directions);
bias_c_data_packed.create(num_output, 1, num_directions, 16u, 4);
weight_hc_data_packed.create(num_output * 12, num_output / 4 + num_output % 4, num_directions);
#else
weight_xc_data_packed.create(size * 3, num_output, num_directions);
bias_c_data_packed.create(num_output, 1, num_directions, 16u, 4);
weight_hc_data_packed.create(num_output * 3, num_output, num_directions);
#endif
#pragma omp parallel for num_threads(opt.num_threads)
for (int dr = 0; dr < num_directions; dr++)
{
const Mat weight_xc = weight_xc_data.channel(dr);
const Mat bias_c = bias_c_data.channel(dr);
const Mat weight_hc = weight_hc_data.channel(dr);
Mat weight_xc_data_packed_dr = weight_xc_data_packed.channel(dr);
Mat bias_c_data_packed_dr = bias_c_data_packed.channel(dr);
Mat weight_hc_data_packed_dr = weight_hc_data_packed.channel(dr);
const float* bias_c_R = bias_c.row(0);
const float* bias_c_U = bias_c.row(1);
const float* bias_c_WN = bias_c.row(2);
const float* bias_c_BN = bias_c.row(3);
float* bias_c_RUBNWN = bias_c_data_packed_dr.row(0);
int q = 0;
#if __ARM_NEON
for (; q + 3 < num_output; q += 4)
{
bias_c_RUBNWN[0] = bias_c_R[q];
bias_c_RUBNWN[1] = bias_c_R[q + 1];
bias_c_RUBNWN[2] = bias_c_R[q + 2];
bias_c_RUBNWN[3] = bias_c_R[q + 3];
bias_c_RUBNWN[4] = bias_c_U[q];
bias_c_RUBNWN[5] = bias_c_U[q + 1];
bias_c_RUBNWN[6] = bias_c_U[q + 2];
bias_c_RUBNWN[7] = bias_c_U[q + 3];
bias_c_RUBNWN[8] = bias_c_BN[q];
bias_c_RUBNWN[9] = bias_c_BN[q + 1];
bias_c_RUBNWN[10] = bias_c_BN[q + 2];
bias_c_RUBNWN[11] = bias_c_BN[q + 3];
bias_c_RUBNWN[12] = bias_c_WN[q];
bias_c_RUBNWN[13] = bias_c_WN[q + 1];
bias_c_RUBNWN[14] = bias_c_WN[q + 2];
bias_c_RUBNWN[15] = bias_c_WN[q + 3];
bias_c_RUBNWN += 16;
const float* weight_xc_R = weight_xc.row(num_output * 0 + q);
const float* weight_xc_U = weight_xc.row(num_output * 1 + q);
const float* weight_xc_N = weight_xc.row(num_output * 2 + q);
const float* weight_xc_R_1 = weight_xc.row(num_output * 0 + q + 1);
const float* weight_xc_U_1 = weight_xc.row(num_output * 1 + q + 1);
const float* weight_xc_N_1 = weight_xc.row(num_output * 2 + q + 1);
const float* weight_xc_R_2 = weight_xc.row(num_output * 0 + q + 2);
const float* weight_xc_U_2 = weight_xc.row(num_output * 1 + q + 2);
const float* weight_xc_N_2 = weight_xc.row(num_output * 2 + q + 2);
const float* weight_xc_R_3 = weight_xc.row(num_output * 0 + q + 3);
const float* weight_xc_U_3 = weight_xc.row(num_output * 1 + q + 3);
const float* weight_xc_N_3 = weight_xc.row(num_output * 2 + q + 3);
const float* weight_hc_R = weight_hc.row(num_output * 0 + q);
const float* weight_hc_U = weight_hc.row(num_output * 1 + q);
const float* weight_hc_N = weight_hc.row(num_output * 2 + q);
const float* weight_hc_R_1 = weight_hc.row(num_output * 0 + q + 1);
const float* weight_hc_U_1 = weight_hc.row(num_output * 1 + q + 1);
const float* weight_hc_N_1 = weight_hc.row(num_output * 2 + q + 1);
const float* weight_hc_R_2 = weight_hc.row(num_output * 0 + q + 2);
const float* weight_hc_U_2 = weight_hc.row(num_output * 1 + q + 2);
const float* weight_hc_N_2 = weight_hc.row(num_output * 2 + q + 2);
const float* weight_hc_R_3 = weight_hc.row(num_output * 0 + q + 3);
const float* weight_hc_U_3 = weight_hc.row(num_output * 1 + q + 3);
const float* weight_hc_N_3 = weight_hc.row(num_output * 2 + q + 3);
float* weight_xc_RUN = weight_xc_data_packed_dr.row(q / 4);
float* weight_hc_RUN = weight_hc_data_packed_dr.row(q / 4);
for (int i = 0; i < size; i++)
{
weight_xc_RUN[0] = weight_xc_R[i];
weight_xc_RUN[1] = weight_xc_R_1[i];
weight_xc_RUN[2] = weight_xc_R_2[i];
weight_xc_RUN[3] = weight_xc_R_3[i];
weight_xc_RUN[4] = weight_xc_U[i];
weight_xc_RUN[5] = weight_xc_U_1[i];
weight_xc_RUN[6] = weight_xc_U_2[i];
weight_xc_RUN[7] = weight_xc_U_3[i];
weight_xc_RUN += 8;
}
for (int i = 0; i < num_output; i++)
{
weight_hc_RUN[0] = weight_hc_R[i];
weight_hc_RUN[1] = weight_hc_R_1[i];
weight_hc_RUN[2] = weight_hc_R_2[i];
weight_hc_RUN[3] = weight_hc_R_3[i];
weight_hc_RUN[4] = weight_hc_U[i];
weight_hc_RUN[5] = weight_hc_U_1[i];
weight_hc_RUN[6] = weight_hc_U_2[i];
weight_hc_RUN[7] = weight_hc_U_3[i];
weight_hc_RUN += 8;
}
for (int i = 0; i < size; i++)
{
weight_xc_RUN[0] = weight_xc_N[i];
weight_xc_RUN[1] = weight_xc_N_1[i];
weight_xc_RUN[2] = weight_xc_N_2[i];
weight_xc_RUN[3] = weight_xc_N_3[i];
weight_xc_RUN += 4;
}
for (int i = 0; i < num_output; i++)
{
weight_hc_RUN[0] = weight_hc_N[i];
weight_hc_RUN[1] = weight_hc_N_1[i];
weight_hc_RUN[2] = weight_hc_N_2[i];
weight_hc_RUN[3] = weight_hc_N_3[i];
weight_hc_RUN += 4;
}
}
#endif // __ARM_NEON
for (; q < num_output; q++)
{
bias_c_RUBNWN[0] = bias_c_R[q];
bias_c_RUBNWN[1] = bias_c_U[q];
bias_c_RUBNWN[2] = bias_c_BN[q];
bias_c_RUBNWN[3] = bias_c_WN[q];
bias_c_RUBNWN += 4;
const float* weight_xc_R = weight_xc.row(num_output * 0 + q);
const float* weight_xc_U = weight_xc.row(num_output * 1 + q);
const float* weight_xc_N = weight_xc.row(num_output * 2 + q);
const float* weight_hc_R = weight_hc.row(num_output * 0 + q);
const float* weight_hc_U = weight_hc.row(num_output * 1 + q);
const float* weight_hc_N = weight_hc.row(num_output * 2 + q);
#if __ARM_NEON
float* weight_xc_RUN = weight_xc_data_packed_dr.row(q / 4 + q % 4);
float* weight_hc_RUN = weight_hc_data_packed_dr.row(q / 4 + q % 4);
#else
float* weight_xc_RUN = weight_xc_data_packed_dr.row(q);
float* weight_hc_RUN = weight_hc_data_packed_dr.row(q);
#endif // __ARM_NEON
for (int i = 0; i < size; i++)
{
weight_xc_RUN[0] = weight_xc_R[i];
weight_xc_RUN[1] = weight_xc_U[i];
weight_xc_RUN += 2;
}
for (int i = 0; i < num_output; i++)
{
weight_hc_RUN[0] = weight_hc_R[i];
weight_hc_RUN[1] = weight_hc_U[i];
weight_hc_RUN += 2;
}
for (int i = 0; i < size; i++)
{
weight_xc_RUN[0] = weight_xc_N[i];
weight_xc_RUN += 1;
}
for (int i = 0; i < num_output; i++)
{
weight_hc_RUN[0] = weight_hc_N[i];
weight_hc_RUN += 1;
}
}
}
return 0;
}
static int gru(const Mat& bottom_blob, Mat& top_blob, int reverse, const Mat& weight_xc, const Mat& bias_c, const Mat& weight_hc, Mat& hidden_state, const Option& opt)
{
int size = bottom_blob.w;
int T = bottom_blob.h;
int num_output = top_blob.w;
// 2 x num_output
#if __ARM_NEON
Mat gates(4 * 2, num_output / 4 + num_output % 4, 4u, opt.workspace_allocator);
#else
Mat gates(2, num_output, 4u, opt.workspace_allocator);
#endif
if (gates.empty())
return -100;
// unroll
for (int t = 0; t < T; t++)
{
int ti = reverse ? T - 1 - t : t;
int remain_num_output_start = 0;
#if __ARM_NEON
int nn_num_output = num_output >> 2;
remain_num_output_start = nn_num_output << 2;
#pragma omp parallel for num_threads(opt.num_threads)
for (int qq = 0; qq < nn_num_output; qq++)
{
int q = qq * 4;
const float* x = bottom_blob.row(ti);
// gate reset update
const float* bias_c_RUBNWN = (const float*)bias_c + q * 4;
const float* weight_xc_RUN = weight_xc.row(q / 4);
const float* weight_hc_RUN = weight_hc.row(q / 4);
float32x4_t _gru_R = vld1q_f32(bias_c_RUBNWN);
float32x4_t _gru_U = vld1q_f32(bias_c_RUBNWN + 4);
float32x4_t _sum1 = vdupq_n_f32(0.f);
float32x4_t _sum2 = vdupq_n_f32(0.f);
float32x4_t _sum3 = vdupq_n_f32(0.f);
float32x4_t _sum4 = vdupq_n_f32(0.f);
float32x4_t _sum5 = vdupq_n_f32(0.f);
float32x4_t _sum6 = vdupq_n_f32(0.f);
int i = 0;
for (; i + 3 < size; i += 4)
{
float32x4_t _xi = vld1q_f32(x + i);
float32x4_t _weight_xc_R = vld1q_f32(weight_xc_RUN);
float32x4_t _weight_xc_U = vld1q_f32(weight_xc_RUN + 4);
float32x4_t _weight_xc_R_1 = vld1q_f32(weight_xc_RUN + 8);
float32x4_t _weight_xc_U_1 = vld1q_f32(weight_xc_RUN + 12);
float32x4_t _weight_xc_R_2 = vld1q_f32(weight_xc_RUN + 16);
float32x4_t _weight_xc_U_2 = vld1q_f32(weight_xc_RUN + 20);
float32x4_t _weight_xc_R_3 = vld1q_f32(weight_xc_RUN + 24);
float32x4_t _weight_xc_U_3 = vld1q_f32(weight_xc_RUN + 28);
#if __aarch64__
_gru_R = vfmaq_laneq_f32(_gru_R, _weight_xc_R, _xi, 0);
_gru_U = vfmaq_laneq_f32(_gru_U, _weight_xc_U, _xi, 0);
_sum1 = vfmaq_laneq_f32(_sum1, _weight_xc_R_1, _xi, 1);
_sum2 = vfmaq_laneq_f32(_sum2, _weight_xc_U_1, _xi, 1);
_sum3 = vfmaq_laneq_f32(_sum3, _weight_xc_R_2, _xi, 2);
_sum4 = vfmaq_laneq_f32(_sum4, _weight_xc_U_2, _xi, 2);
_sum5 = vfmaq_laneq_f32(_sum5, _weight_xc_R_3, _xi, 3);
_sum6 = vfmaq_laneq_f32(_sum6, _weight_xc_U_3, _xi, 3);
#else
_gru_R = vmlaq_lane_f32(_gru_R, _weight_xc_R, vget_low_f32(_xi), 0);
_gru_U = vmlaq_lane_f32(_gru_U, _weight_xc_U, vget_low_f32(_xi), 0);
_sum1 = vmlaq_lane_f32(_sum1, _weight_xc_R_1, vget_low_f32(_xi), 1);
_sum2 = vmlaq_lane_f32(_sum2, _weight_xc_U_1, vget_low_f32(_xi), 1);
_sum3 = vmlaq_lane_f32(_sum3, _weight_xc_R_2, vget_high_f32(_xi), 0);
_sum4 = vmlaq_lane_f32(_sum4, _weight_xc_U_2, vget_high_f32(_xi), 0);
_sum5 = vmlaq_lane_f32(_sum5, _weight_xc_R_3, vget_high_f32(_xi), 1);
_sum6 = vmlaq_lane_f32(_sum6, _weight_xc_U_3, vget_high_f32(_xi), 1);
#endif
weight_xc_RUN += 32;
}
for (; i < size; i++)
{
float xi = x[i];
float32x4_t _xi = vdupq_n_f32(xi);
float32x4_t _weight_xc_R = vld1q_f32(weight_xc_RUN);
float32x4_t _weight_xc_U = vld1q_f32(weight_xc_RUN + 4);
_gru_R = vmlaq_f32(_gru_R, _weight_xc_R, _xi);
_gru_U = vmlaq_f32(_gru_U, _weight_xc_U, _xi);
weight_xc_RUN += 8;
}
i = 0;
for (; i + 3 < num_output; i += 4)
{
float32x4_t _h_cont = vld1q_f32((const float*)hidden_state + i);
float32x4_t _weight_hc_R = vld1q_f32(weight_hc_RUN);
float32x4_t _weight_hc_U = vld1q_f32(weight_hc_RUN + 4);
float32x4_t _weight_hc_R_1 = vld1q_f32(weight_hc_RUN + 8);
float32x4_t _weight_hc_U_1 = vld1q_f32(weight_hc_RUN + 12);
float32x4_t _weight_hc_R_2 = vld1q_f32(weight_hc_RUN + 16);
float32x4_t _weight_hc_U_2 = vld1q_f32(weight_hc_RUN + 20);
float32x4_t _weight_hc_R_3 = vld1q_f32(weight_hc_RUN + 24);
float32x4_t _weight_hc_U_3 = vld1q_f32(weight_hc_RUN + 28);
#if __aarch64__
_gru_R = vfmaq_laneq_f32(_gru_R, _weight_hc_R, _h_cont, 0);
_gru_U = vfmaq_laneq_f32(_gru_U, _weight_hc_U, _h_cont, 0);
_sum1 = vfmaq_laneq_f32(_sum1, _weight_hc_R_1, _h_cont, 1);
_sum2 = vfmaq_laneq_f32(_sum2, _weight_hc_U_1, _h_cont, 1);
_sum3 = vfmaq_laneq_f32(_sum3, _weight_hc_R_2, _h_cont, 2);
_sum4 = vfmaq_laneq_f32(_sum4, _weight_hc_U_2, _h_cont, 2);
_sum5 = vfmaq_laneq_f32(_sum5, _weight_hc_R_3, _h_cont, 3);
_sum6 = vfmaq_laneq_f32(_sum6, _weight_hc_U_3, _h_cont, 3);
#else
_gru_R = vmlaq_lane_f32(_gru_R, _weight_hc_R, vget_low_f32(_h_cont), 0);
_gru_U = vmlaq_lane_f32(_gru_U, _weight_hc_U, vget_low_f32(_h_cont), 0);
_sum1 = vmlaq_lane_f32(_sum1, _weight_hc_R_1, vget_low_f32(_h_cont), 1);
_sum2 = vmlaq_lane_f32(_sum2, _weight_hc_U_1, vget_low_f32(_h_cont), 1);
_sum3 = vmlaq_lane_f32(_sum3, _weight_hc_R_2, vget_high_f32(_h_cont), 0);
_sum4 = vmlaq_lane_f32(_sum4, _weight_hc_U_2, vget_high_f32(_h_cont), 0);
_sum5 = vmlaq_lane_f32(_sum5, _weight_hc_R_3, vget_high_f32(_h_cont), 1);
_sum6 = vmlaq_lane_f32(_sum6, _weight_hc_U_3, vget_high_f32(_h_cont), 1);
#endif
weight_hc_RUN += 32;
}
for (; i < num_output; i++)
{
float h_cont = hidden_state[i];
float32x4_t _h_cont = vdupq_n_f32(h_cont);
float32x4_t _weight_hc_R = vld1q_f32(weight_hc_RUN);
float32x4_t _weight_hc_U = vld1q_f32(weight_hc_RUN + 4);
_gru_R = vmlaq_f32(_gru_R, _weight_hc_R, _h_cont);
_gru_U = vmlaq_f32(_gru_U, _weight_hc_U, _h_cont);
weight_hc_RUN += 8;
}
_gru_R = vaddq_f32(_gru_R, _sum1);
_gru_U = vaddq_f32(_gru_U, _sum2);
_sum3 = vaddq_f32(_sum3, _sum5);
_sum4 = vaddq_f32(_sum4, _sum6);
_gru_R = vaddq_f32(_gru_R, _sum3);
_gru_U = vaddq_f32(_gru_U, _sum4);
// sigmoid(R)
// sigmoid(U)
_gru_R = sigmoid_ps(_gru_R);
_gru_U = sigmoid_ps(_gru_U);
// gate new
float32x4_t _gru_N = vld1q_f32(bias_c_RUBNWN + 8);
_sum1 = vdupq_n_f32(0.f);
_sum2 = vdupq_n_f32(0.f);
_sum3 = vdupq_n_f32(0.f);
i = 0;
for (; i + 3 < num_output; i += 4)
{
float32x4_t _h_cont = vld1q_f32((const float*)hidden_state + i);
float32x4_t _weight_hc_N = vld1q_f32(weight_hc_RUN);
float32x4_t _weight_hc_N_1 = vld1q_f32(weight_hc_RUN + 4);
float32x4_t _weight_hc_N_2 = vld1q_f32(weight_hc_RUN + 8);
float32x4_t _weight_hc_N_3 = vld1q_f32(weight_hc_RUN + 12);
#if __aarch64__
_gru_N = vfmaq_laneq_f32(_gru_N, _weight_hc_N, _h_cont, 0);
_sum1 = vfmaq_laneq_f32(_sum1, _weight_hc_N_1, _h_cont, 1);
_sum2 = vfmaq_laneq_f32(_sum2, _weight_hc_N_2, _h_cont, 2);
_sum3 = vfmaq_laneq_f32(_sum3, _weight_hc_N_3, _h_cont, 3);
#else
_gru_N = vmlaq_lane_f32(_gru_N, _weight_hc_N, vget_low_f32(_h_cont), 0);
_sum1 = vmlaq_lane_f32(_sum1, _weight_hc_N_1, vget_low_f32(_h_cont), 1);
_sum2 = vmlaq_lane_f32(_sum2, _weight_hc_N_2, vget_high_f32(_h_cont), 0);
_sum3 = vmlaq_lane_f32(_sum3, _weight_hc_N_3, vget_high_f32(_h_cont), 1);
#endif
weight_hc_RUN += 16;
}
for (; i < num_output; i++)
{
float h_cont = hidden_state[i];
float32x4_t _h_cont = vdupq_n_f32(h_cont);
float32x4_t _weight_hc_N = vld1q_f32(weight_hc_RUN);
_gru_N = vmlaq_f32(_gru_N, _weight_hc_N, _h_cont);
weight_hc_RUN += 4;
}
_gru_N = vaddq_f32(_gru_N, _sum1);
_sum2 = vaddq_f32(_sum2, _sum3);
_gru_N = vaddq_f32(_gru_N, _sum2);
_gru_N = vmlaq_f32(vld1q_f32(bias_c_RUBNWN + 12), _gru_R, _gru_N);
_sum1 = vdupq_n_f32(0.f);
_sum2 = vdupq_n_f32(0.f);
_sum3 = vdupq_n_f32(0.f);
i = 0;
for (; i + 3 < size; i += 4)
{
float32x4_t _xi = vld1q_f32(x + i);
float32x4_t _weight_xc_N = vld1q_f32(weight_xc_RUN);
float32x4_t _weight_xc_N_1 = vld1q_f32(weight_xc_RUN + 4);
float32x4_t _weight_xc_N_2 = vld1q_f32(weight_xc_RUN + 8);
float32x4_t _weight_xc_N_3 = vld1q_f32(weight_xc_RUN + 12);
#if __aarch64__
_gru_N = vfmaq_laneq_f32(_gru_N, _weight_xc_N, _xi, 0);
_sum1 = vfmaq_laneq_f32(_sum1, _weight_xc_N_1, _xi, 1);
_sum2 = vfmaq_laneq_f32(_sum2, _weight_xc_N_2, _xi, 2);
_sum3 = vfmaq_laneq_f32(_sum3, _weight_xc_N_3, _xi, 3);
#else
_gru_N = vmlaq_lane_f32(_gru_N, _weight_xc_N, vget_low_f32(_xi), 0);
_sum1 = vmlaq_lane_f32(_sum1, _weight_xc_N_1, vget_low_f32(_xi), 1);
_sum2 = vmlaq_lane_f32(_sum2, _weight_xc_N_2, vget_high_f32(_xi), 0);
_sum3 = vmlaq_lane_f32(_sum3, _weight_xc_N_3, vget_high_f32(_xi), 1);
#endif
weight_xc_RUN += 16;
}
for (; i < size; i++)
{
float xi = x[i];
float32x4_t _xi = vdupq_n_f32(xi);
float32x4_t _weight_xc_N = vld1q_f32(weight_xc_RUN);
_gru_N = vmlaq_f32(_gru_N, _weight_xc_N, _xi);
weight_xc_RUN += 4;
}
_gru_N = vaddq_f32(_gru_N, _sum1);
_sum2 = vaddq_f32(_sum2, _sum3);
_gru_N = vaddq_f32(_gru_N, _sum2);
// tanh(N)
_gru_N = tanh_ps(_gru_N);
float* gates_data = gates.row(q / 4);
vst1q_f32(gates_data, _gru_U);
vst1q_f32(gates_data + 4, _gru_N);
}
#endif // __ARM_NEON
#pragma omp parallel for num_threads(opt.num_threads)
for (int q = remain_num_output_start; q < num_output; q++)
{
const float* x = bottom_blob.row(ti);
// gate reset update
const float* bias_c_RUBNWN = (const float*)bias_c + q * 4;
#if __ARM_NEON
const float* weight_xc_RUN = weight_xc.row(q / 4 + q % 4);
const float* weight_hc_RUN = weight_hc.row(q / 4 + q % 4);
#else
const float* weight_xc_RUN = weight_xc.row(q);
const float* weight_hc_RUN = weight_hc.row(q);
#endif
float R = bias_c_RUBNWN[0];
float U = bias_c_RUBNWN[1];
for (int i = 0; i < size; i++)
{
float xi = x[i];
R += weight_xc_RUN[0] * xi;
U += weight_xc_RUN[1] * xi;
weight_xc_RUN += 2;
}
for (int i = 0; i < num_output; i++)
{
float h_cont = hidden_state[i];
R += weight_hc_RUN[0] * h_cont;
U += weight_hc_RUN[1] * h_cont;
weight_hc_RUN += 2;
}
// sigmoid(R)
// sigmoid(U)
R = 1.f / (1.f + expf(-R));
U = 1.f / (1.f + expf(-U));
// gate new
float N = bias_c_RUBNWN[2];
for (int i = 0; i < num_output; i++)
{
float h_cont = hidden_state[i];
N += weight_hc_RUN[0] * h_cont;
weight_hc_RUN += 1;
}
N = bias_c_RUBNWN[3] + R * N;
for (int i = 0; i < size; i++)
{
float xi = x[i];
N += weight_xc_RUN[0] * xi;
weight_xc_RUN += 1;
}
// tanh(N)
N = tanhf(N);
#if __ARM_NEON
float* gates_data = gates.row(q / 4 + q % 4);
#else
float* gates_data = gates.row(q);
#endif
gates_data[0] = U;
gates_data[1] = N;
}
// h_t := (1 - update) .* new + update .* h_{t-1}
float* output_data = top_blob.row(ti);
float* hidden_ptr = hidden_state;
#if __ARM_NEON
nn_num_output = num_output >> 2;
remain_num_output_start = nn_num_output << 2;
#pragma omp parallel for num_threads(opt.num_threads)
for (int qq = 0; qq < nn_num_output; qq++)
{
int q = qq * 4;
const float* gates_data = gates.row(q / 4);
float32x4_t _gru_U = vld1q_f32(gates_data);
float32x4_t _gru_N = vld1q_f32(gates_data + 4);
float32x4_t _gru_H = vaddq_f32(vmulq_f32(vsubq_f32(vdupq_n_f32(1.f), _gru_U), _gru_N), vmulq_f32(_gru_U, vld1q_f32(hidden_ptr + q)));
vst1q_f32(hidden_ptr + q, _gru_H);
vst1q_f32(output_data + q, _gru_H);
}
#endif // __ARM_NEON
#pragma omp parallel for num_threads(opt.num_threads)
for (int q = remain_num_output_start; q < num_output; q++)
{
#if __ARM_NEON
const float* gates_data = gates.row(q / 4 + q % 4);
#else
const float* gates_data = gates.row(q);
#endif
float U = gates_data[0];
float N = gates_data[1];
float H = (1 - U) * N + U * hidden_ptr[q];
hidden_ptr[q] = H;
output_data[q] = H;
}
}
return 0;
}
int GRU_arm::forward(const Mat& bottom_blob, Mat& top_blob, const Option& opt) const
{
int elembits = bottom_blob.elembits();
#if NCNN_ARM82
if (support_fp16_storage && opt.use_fp16_storage && elembits == 16)
{
if (opt.use_fp16_arithmetic)
return forward_fp16sa(bottom_blob, top_blob, opt);
else
return forward_fp16s(bottom_blob, top_blob, opt);
}
#endif
#if NCNN_BF16
if (opt.use_bf16_storage && elembits == 16)
return forward_bf16s(bottom_blob, top_blob, opt);
#endif
int T = bottom_blob.h;
int num_directions = direction == 2 ? 2 : 1;
// initial hidden state
Mat hidden(num_output, 4u, opt.workspace_allocator);
if (hidden.empty())
return -100;
hidden.fill(0.f);
top_blob.create(num_output * num_directions, T, 4u, opt.blob_allocator);
if (top_blob.empty())
return -100;
// Uni directional
if (direction == 0 || direction == 1)
{
int ret = gru(bottom_blob, top_blob, direction, weight_xc_data_packed.channel(0), bias_c_data_packed.channel(0), weight_hc_data_packed.channel(0), hidden, opt);
if (ret != 0)
return ret;
}
if (direction == 2)
{
Mat top_blob_forward(num_output, T, 4u, opt.workspace_allocator);
if (top_blob_forward.empty())
return -100;
Mat top_blob_reverse(num_output, T, 4u, opt.workspace_allocator);
if (top_blob_reverse.empty())
return -100;
int ret0 = gru(bottom_blob, top_blob_forward, 0, weight_xc_data_packed.channel(0), bias_c_data_packed.channel(0), weight_hc_data_packed.channel(0), hidden, opt);
if (ret0 != 0)
return ret0;
hidden.fill(0.0f);
int ret1 = gru(bottom_blob, top_blob_reverse, 1, weight_xc_data_packed.channel(1), bias_c_data_packed.channel(1), weight_hc_data_packed.channel(1), hidden, opt);
if (ret1 != 0)
return ret1;
// concat w
for (int i = 0; i < T; i++)
{
const float* pf = top_blob_forward.row(i);
const float* pr = top_blob_reverse.row(i);
float* ptr = top_blob.row(i);
memcpy(ptr, pf, num_output * sizeof(float));
memcpy(ptr + num_output, pr, num_output * sizeof(float));
}
}
return 0;
}
int GRU_arm::forward(const std::vector<Mat>& bottom_blobs, std::vector<Mat>& top_blobs, const Option& opt) const
{
const Mat& bottom_blob = bottom_blobs[0];
int elembits = bottom_blob.elembits();
#if NCNN_ARM82
if (support_fp16_storage && opt.use_fp16_storage && elembits == 16)
{
if (opt.use_fp16_arithmetic)
return forward_fp16sa(bottom_blobs, top_blobs, opt);
else
return forward_fp16s(bottom_blobs, top_blobs, opt);
}
#endif
#if NCNN_BF16
if (opt.use_bf16_storage && elembits == 16)
return forward_bf16s(bottom_blobs, top_blobs, opt);
#endif
int T = bottom_blob.h;
int num_directions = direction == 2 ? 2 : 1;
Mat hidden;
Allocator* hidden_allocator = top_blobs.size() == 2 ? opt.blob_allocator : opt.workspace_allocator;
if (bottom_blobs.size() == 2)
{
hidden = bottom_blobs[1].clone(hidden_allocator);
}
else
{
hidden.create(num_output, num_directions, 4u, hidden_allocator);
if (hidden.empty())
return -100;
hidden.fill(0.f);
}
Mat& top_blob = top_blobs[0];
top_blob.create(num_output * num_directions, T, 4u, opt.blob_allocator);
if (top_blob.empty())
return -100;
// Uni directional
if (direction == 0 || direction == 1)
{
int ret = gru(bottom_blob, top_blob, direction, weight_xc_data_packed.channel(0), bias_c_data_packed.channel(0), weight_hc_data_packed.channel(0), hidden, opt);
if (ret != 0)
return ret;
}
if (direction == 2)
{
Mat top_blob_forward(num_output, T, 4u, opt.workspace_allocator);
if (top_blob_forward.empty())
return -100;
Mat top_blob_reverse(num_output, T, 4u, opt.workspace_allocator);
if (top_blob_reverse.empty())
return -100;
Mat hidden0 = hidden.row_range(0, 1);
int ret0 = gru(bottom_blob, top_blob_forward, 0, weight_xc_data_packed.channel(0), bias_c_data_packed.channel(0), weight_hc_data_packed.channel(0), hidden0, opt);
if (ret0 != 0)
return ret0;
Mat hidden1 = hidden.row_range(1, 1);
int ret1 = gru(bottom_blob, top_blob_reverse, 1, weight_xc_data_packed.channel(1), bias_c_data_packed.channel(1), weight_hc_data_packed.channel(1), hidden1, opt);
if (ret1 != 0)
return ret1;
// concat w
for (int i = 0; i < T; i++)
{
const float* pf = top_blob_forward.row(i);
const float* pr = top_blob_reverse.row(i);
float* ptr = top_blob.row(i);
memcpy(ptr, pf, num_output * sizeof(float));
memcpy(ptr + num_output, pr, num_output * sizeof(float));
}
}
if (top_blobs.size() == 2)
{
top_blobs[1] = hidden;
}
return 0;
}
#if NCNN_BF16
static int gru_bf16s(const Mat& bottom_blob, Mat& top_blob, int reverse, const Mat& weight_xc, const Mat& bias_c, const Mat& weight_hc, Mat& hidden_state, const Option& opt)
{
int size = bottom_blob.w;
int T = bottom_blob.h;
int num_output = top_blob.w;
// 2 x num_output
#if __ARM_NEON
Mat gates(4 * 2, num_output / 4 + num_output % 4, 4u, opt.workspace_allocator);
#else
Mat gates(2, num_output, 4u, opt.workspace_allocator);
#endif
if (gates.empty())
return -100;
// unroll
for (int t = 0; t < T; t++)
{
int ti = reverse ? T - 1 - t : t;
int remain_num_output_start = 0;
#if __ARM_NEON
int nn_num_output = num_output >> 2;
remain_num_output_start = nn_num_output << 2;
#pragma omp parallel for num_threads(opt.num_threads)
for (int qq = 0; qq < nn_num_output; qq++)
{
int q = qq * 4;
const unsigned short* x = bottom_blob.row<const unsigned short>(ti);
// gate reset update
const unsigned short* bias_c_RUBNWN = (const unsigned short*)bias_c + q * 4;
const unsigned short* weight_xc_RUN = weight_xc.row<const unsigned short>(q / 4);
const unsigned short* weight_hc_RUN = weight_hc.row<const unsigned short>(q / 4);
float32x4_t _gru_R = bfloat2float(vld1_u16(bias_c_RUBNWN));
float32x4_t _gru_U = bfloat2float(vld1_u16(bias_c_RUBNWN + 4));
float32x4_t _sum1 = vdupq_n_f32(0.f);
float32x4_t _sum2 = vdupq_n_f32(0.f);
float32x4_t _sum3 = vdupq_n_f32(0.f);
float32x4_t _sum4 = vdupq_n_f32(0.f);
float32x4_t _sum5 = vdupq_n_f32(0.f);
float32x4_t _sum6 = vdupq_n_f32(0.f);
int i = 0;
for (; i + 3 < size; i += 4)
{
float32x4_t _xi = bfloat2float(vld1_u16(x + i));
float32x4_t _weight_xc_R = bfloat2float(vld1_u16(weight_xc_RUN));
float32x4_t _weight_xc_U = bfloat2float(vld1_u16(weight_xc_RUN + 4));
float32x4_t _weight_xc_R_1 = bfloat2float(vld1_u16(weight_xc_RUN + 8));
float32x4_t _weight_xc_U_1 = bfloat2float(vld1_u16(weight_xc_RUN + 12));
float32x4_t _weight_xc_R_2 = bfloat2float(vld1_u16(weight_xc_RUN + 16));
float32x4_t _weight_xc_U_2 = bfloat2float(vld1_u16(weight_xc_RUN + 20));
float32x4_t _weight_xc_R_3 = bfloat2float(vld1_u16(weight_xc_RUN + 24));
float32x4_t _weight_xc_U_3 = bfloat2float(vld1_u16(weight_xc_RUN + 28));
#if __aarch64__
_gru_R = vfmaq_laneq_f32(_gru_R, _weight_xc_R, _xi, 0);
_gru_U = vfmaq_laneq_f32(_gru_U, _weight_xc_U, _xi, 0);
_sum1 = vfmaq_laneq_f32(_sum1, _weight_xc_R_1, _xi, 1);
_sum2 = vfmaq_laneq_f32(_sum2, _weight_xc_U_1, _xi, 1);
_sum3 = vfmaq_laneq_f32(_sum3, _weight_xc_R_2, _xi, 2);
_sum4 = vfmaq_laneq_f32(_sum4, _weight_xc_U_2, _xi, 2);
_sum5 = vfmaq_laneq_f32(_sum5, _weight_xc_R_3, _xi, 3);
_sum6 = vfmaq_laneq_f32(_sum6, _weight_xc_U_3, _xi, 3);
#else
_gru_R = vmlaq_lane_f32(_gru_R, _weight_xc_R, vget_low_f32(_xi), 0);
_gru_U = vmlaq_lane_f32(_gru_U, _weight_xc_U, vget_low_f32(_xi), 0);
_sum1 = vmlaq_lane_f32(_sum1, _weight_xc_R_1, vget_low_f32(_xi), 1);
_sum2 = vmlaq_lane_f32(_sum2, _weight_xc_U_1, vget_low_f32(_xi), 1);
_sum3 = vmlaq_lane_f32(_sum3, _weight_xc_R_2, vget_high_f32(_xi), 0);
_sum4 = vmlaq_lane_f32(_sum4, _weight_xc_U_2, vget_high_f32(_xi), 0);
_sum5 = vmlaq_lane_f32(_sum5, _weight_xc_R_3, vget_high_f32(_xi), 1);
_sum6 = vmlaq_lane_f32(_sum6, _weight_xc_U_3, vget_high_f32(_xi), 1);
#endif
weight_xc_RUN += 32;
}
for (; i < size; i++)
{
unsigned short xi = x[i];
float32x4_t _xi = bfloat2float(vdup_n_u16(xi));
float32x4_t _weight_xc_R = bfloat2float(vld1_u16(weight_xc_RUN));
float32x4_t _weight_xc_U = bfloat2float(vld1_u16(weight_xc_RUN + 4));
_gru_R = vmlaq_f32(_gru_R, _weight_xc_R, _xi);
_gru_U = vmlaq_f32(_gru_U, _weight_xc_U, _xi);
weight_xc_RUN += 8;
}
i = 0;
for (; i + 3 < num_output; i += 4)
{
float32x4_t _h_cont = vld1q_f32((const float*)hidden_state + i);
float32x4_t _weight_hc_R = bfloat2float(vld1_u16(weight_hc_RUN));
float32x4_t _weight_hc_U = bfloat2float(vld1_u16(weight_hc_RUN + 4));
float32x4_t _weight_hc_R_1 = bfloat2float(vld1_u16(weight_hc_RUN + 8));
float32x4_t _weight_hc_U_1 = bfloat2float(vld1_u16(weight_hc_RUN + 12));
float32x4_t _weight_hc_R_2 = bfloat2float(vld1_u16(weight_hc_RUN + 16));
float32x4_t _weight_hc_U_2 = bfloat2float(vld1_u16(weight_hc_RUN + 20));
float32x4_t _weight_hc_R_3 = bfloat2float(vld1_u16(weight_hc_RUN + 24));
float32x4_t _weight_hc_U_3 = bfloat2float(vld1_u16(weight_hc_RUN + 28));
#if __aarch64__
_gru_R = vfmaq_laneq_f32(_gru_R, _weight_hc_R, _h_cont, 0);
_gru_U = vfmaq_laneq_f32(_gru_U, _weight_hc_U, _h_cont, 0);
_sum1 = vfmaq_laneq_f32(_sum1, _weight_hc_R_1, _h_cont, 1);
_sum2 = vfmaq_laneq_f32(_sum2, _weight_hc_U_1, _h_cont, 1);
_sum3 = vfmaq_laneq_f32(_sum3, _weight_hc_R_2, _h_cont, 2);
_sum4 = vfmaq_laneq_f32(_sum4, _weight_hc_U_2, _h_cont, 2);
_sum5 = vfmaq_laneq_f32(_sum5, _weight_hc_R_3, _h_cont, 3);
_sum6 = vfmaq_laneq_f32(_sum6, _weight_hc_U_3, _h_cont, 3);
#else
_gru_R = vmlaq_lane_f32(_gru_R, _weight_hc_R, vget_low_f32(_h_cont), 0);
_gru_U = vmlaq_lane_f32(_gru_U, _weight_hc_U, vget_low_f32(_h_cont), 0);
_sum1 = vmlaq_lane_f32(_sum1, _weight_hc_R_1, vget_low_f32(_h_cont), 1);
_sum2 = vmlaq_lane_f32(_sum2, _weight_hc_U_1, vget_low_f32(_h_cont), 1);
_sum3 = vmlaq_lane_f32(_sum3, _weight_hc_R_2, vget_high_f32(_h_cont), 0);
_sum4 = vmlaq_lane_f32(_sum4, _weight_hc_U_2, vget_high_f32(_h_cont), 0);
_sum5 = vmlaq_lane_f32(_sum5, _weight_hc_R_3, vget_high_f32(_h_cont), 1);
_sum6 = vmlaq_lane_f32(_sum6, _weight_hc_U_3, vget_high_f32(_h_cont), 1);
#endif
weight_hc_RUN += 32;
}
for (; i < num_output; i++)
{
float h_cont = hidden_state[i];
float32x4_t _h_cont = vdupq_n_f32(h_cont);
float32x4_t _weight_hc_R = bfloat2float(vld1_u16(weight_hc_RUN));
float32x4_t _weight_hc_U = bfloat2float(vld1_u16(weight_hc_RUN + 4));
_gru_R = vmlaq_f32(_gru_R, _weight_hc_R, _h_cont);
_gru_U = vmlaq_f32(_gru_U, _weight_hc_U, _h_cont);
weight_hc_RUN += 8;
}
_gru_R = vaddq_f32(_gru_R, _sum1);
_gru_U = vaddq_f32(_gru_U, _sum2);
_sum3 = vaddq_f32(_sum3, _sum5);
_sum4 = vaddq_f32(_sum4, _sum6);
_gru_R = vaddq_f32(_gru_R, _sum3);
_gru_U = vaddq_f32(_gru_U, _sum4);
// sigmoid(R)
// sigmoid(U)
_gru_R = sigmoid_ps(_gru_R);
_gru_U = sigmoid_ps(_gru_U);
// gate new
float32x4_t _gru_N = bfloat2float(vld1_u16(bias_c_RUBNWN + 8));
_sum1 = vdupq_n_f32(0.f);
_sum2 = vdupq_n_f32(0.f);
_sum3 = vdupq_n_f32(0.f);
i = 0;
for (; i + 3 < num_output; i += 4)
{
float32x4_t _h_cont = vld1q_f32((const float*)hidden_state + i);
float32x4_t _weight_hc_N = bfloat2float(vld1_u16(weight_hc_RUN));
float32x4_t _weight_hc_N_1 = bfloat2float(vld1_u16(weight_hc_RUN + 4));
float32x4_t _weight_hc_N_2 = bfloat2float(vld1_u16(weight_hc_RUN + 8));
float32x4_t _weight_hc_N_3 = bfloat2float(vld1_u16(weight_hc_RUN + 12));
#if __aarch64__
_gru_N = vfmaq_laneq_f32(_gru_N, _weight_hc_N, _h_cont, 0);
_sum1 = vfmaq_laneq_f32(_sum1, _weight_hc_N_1, _h_cont, 1);
_sum2 = vfmaq_laneq_f32(_sum2, _weight_hc_N_2, _h_cont, 2);
_sum3 = vfmaq_laneq_f32(_sum3, _weight_hc_N_3, _h_cont, 3);
#else
_gru_N = vmlaq_lane_f32(_gru_N, _weight_hc_N, vget_low_f32(_h_cont), 0);
_sum1 = vmlaq_lane_f32(_sum1, _weight_hc_N_1, vget_low_f32(_h_cont), 1);
_sum2 = vmlaq_lane_f32(_sum2, _weight_hc_N_2, vget_high_f32(_h_cont), 0);
_sum3 = vmlaq_lane_f32(_sum3, _weight_hc_N_3, vget_high_f32(_h_cont), 1);
#endif
weight_hc_RUN += 16;
}
for (; i < num_output; i++)
{
float h_cont = hidden_state[i];
float32x4_t _h_cont = vdupq_n_f32(h_cont);
float32x4_t _weight_hc_N = bfloat2float(vld1_u16(weight_hc_RUN));
_gru_N = vmlaq_f32(_gru_N, _weight_hc_N, _h_cont);
weight_hc_RUN += 4;
}
_gru_N = vaddq_f32(_gru_N, _sum1);
_sum2 = vaddq_f32(_sum2, _sum3);
_gru_N = vaddq_f32(_gru_N, _sum2);
_gru_N = vmlaq_f32(bfloat2float(vld1_u16(bias_c_RUBNWN + 12)), _gru_R, _gru_N);
_sum1 = vdupq_n_f32(0.f);
_sum2 = vdupq_n_f32(0.f);
_sum3 = vdupq_n_f32(0.f);
i = 0;