SpaceToBatch
将输入在空间维度按照 block_size 分块并重新排列到 batch 维度,同时根据 paddings 执行必要的零填充。
- 输入:
input - 输入数据地址。
block_size - 分块因子,格式为
[block_h, block_w]。paddings - 填充参数,格式为
[top, bottom, left, right]。input_shape - 输入形状,格式为
[batch, height, width, channel]。data_size - 单个元素字节数(例如 sizeof(float))。
core_mask(int, 可选) - 核掩码(仅适用于共享存储版本)。
- 输出:
output - 输出数据地址。
- 支持平台:
FT78NEMT7004备注
FT78NE 支持的数据类型: fp32、fp64、cplx64、cplx128、int16、int8、int32。
MT7004 支持的数据类型: fp32、fp16、cplx64、int16、int32。
共享存储版本:
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void i8_spacetobatch_s(int8_t *input, int8_t *output, const int *block_size, const int *paddings, const int *input_shape, int data_size, int core_mask)
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void i16_spacetobatch_s(int16_t *input, int16_t *output, const int *block_size, const int *paddings, const int *input_shape, int data_size, int core_mask)
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void i32_spacetobatch_s(int32_t *input, int32_t *output, const int *block_size, const int *paddings, const int *input_shape, int data_size, int core_mask)
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void hp_spacetobatch_s(half *input, half *output, const int *block_size, const int *paddings, const int *input_shape, int data_size, int core_mask)
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void fp_spacetobatch_s(float *input, float *output, const int *block_size, const int *paddings, const int *input_shape, int data_size, int core_mask)
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void dp_spacetobatch_s(double *input, double *output, const int *block_size, const int *paddings, const int *input_shape, int data_size, int core_mask)
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void c64_spacetobatch_s(float *input, float *output, const int *block_size, const int *paddings, const int *input_shape, int data_size, int core_mask)
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void c128_spacetobatch_s(double *input, double *output, const int *block_size, const int *paddings, const int *input_shape, int data_size, int core_mask)
C 调用示例:
1// FT78NE 多核示例 2#include <stdio.h> 3 4int main(int argc, char *argv[]) { 5 float *input = (float *)0xA0000000; // 输入在 DDR 地址 0xA0000000 6 float *output = (float *)0xB0000000; // 输出在 DDR 地址 0xB0000000 7 int block_size[2] = {2, 2}; 8 int paddings[4] = {0, 0, 0, 0}; 9 int input_shape[4] = {1, 100, 10, 10}; 10 int core_mask = 0xff; 11 fp_spacetobatch_s(input, output, block_size, paddings, input_shape, sizeof(float), core_mask); 12 return 0; 13}
私有存储版本:
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void i8_spacetobatch_p(int8_t *input, int8_t *output, const int *block_size, const int *paddings, const int *input_shape, int data_size)
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void i16_spacetobatch_p(int16_t *input, int16_t *output, const int *block_size, const int *paddings, const int *input_shape, int data_size)
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void i32_spacetobatch_p(int32_t *input, int32_t *output, const int *block_size, const int *paddings, const int *input_shape, int data_size)
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void hp_spacetobatch_p(half *input, half *output, const int *block_size, const int *paddings, const int *input_shape, int data_size)
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void fp_spacetobatch_p(float *input, float *output, const int *block_size, const int *paddings, const int *input_shape, int data_size)
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void dp_spacetobatch_p(double *input, double *output, const int *block_size, const int *paddings, const int *input_shape, int data_size)
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void c64_spacetobatch_p(float *input, float *output, const int *block_size, const int *paddings, const int *input_shape, int data_size)
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void c128_spacetobatch_p(double *input, double *output, const int *block_size, const int *paddings, const int *input_shape, int data_size)
C 调用示例:
1// FT78NE 单核示例 2#include <stdio.h> 3 4int main(int argc, char *argv[]) { 5 float *input = (float *)0x10000000; // 单核版本:输入放在 L2 地址 0x10000000 6 float *output = (float *)0x10040000; // 单核版本:输出放在 L2 地址 0x10040000 7 int block_size[2] = {2, 2}; 8 int paddings[4] = {0, 0, 0, 0}; 9 int input_shape[4] = {1, 100, 10, 10}; 10 fp_spacetobatch_p(input, output, block_size, paddings, input_shape, sizeof(float)); 11 return 0; 12}