87 lines
4.8 KiB
ReStructuredText
87 lines
4.8 KiB
ReStructuredText
SpaceToBatch
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=================
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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。
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输入:
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- **input** - 输入数据地址。
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- **block_size** - 分块因子,格式为 ``[block_h, block_w]``。
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- **paddings** - 填充参数,格式为 ``[top, bottom, left, right]``。
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- **input_shape** - 输入形状,格式为 ``[batch, height, width, channel]``。
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- **data_size** - 单个元素字节数(例如 sizeof(float))。
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- **core_mask(int, 可选)** - 核掩码(仅适用于共享存储版本)。
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输出:
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- **output** - 输出数据地址。
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支持平台:
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``FT78NE``
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``MT7004``
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.. note::
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- FT78NE 支持的数据类型: fp32、fp64、cplx64、cplx128、int16、int8、int32。
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- MT7004 支持的数据类型: fp32、fp16、cplx64、int16、int32。
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**共享存储版本:**
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.. c:function:: 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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.. c:function:: 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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.. c:function:: 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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.. c:function:: 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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.. c:function:: 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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.. c:function:: 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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.. c:function:: 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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.. c:function:: 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)
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**C 调用示例:**
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.. code-block:: c
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:linenos:
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:emphasize-lines: 11
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// FT78NE 多核示例
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#include <stdio.h>
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int main(int argc, char *argv[]) {
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float *input = (float *)0xA0000000; // 输入在 DDR 地址 0xA0000000
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float *output = (float *)0xB0000000; // 输出在 DDR 地址 0xB0000000
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int block_size[2] = {2, 2};
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int paddings[4] = {0, 0, 0, 0};
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int input_shape[4] = {1, 100, 10, 10};
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int core_mask = 0xff;
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fp_spacetobatch_s(input, output, block_size, paddings, input_shape, sizeof(float), core_mask);
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return 0;
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}
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**私有存储版本:**
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.. c:function:: 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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.. c:function:: 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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.. c:function:: 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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.. c:function:: 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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.. c:function:: 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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.. c:function:: 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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.. c:function:: 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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.. c:function:: void c128_spacetobatch_p(double *input, double *output, const int *block_size, const int *paddings, const int *input_shape, int data_size)
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**C 调用示例:**
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.. code-block:: c
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:linenos:
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:emphasize-lines: 10
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// FT78NE 单核示例
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#include <stdio.h>
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int main(int argc, char *argv[]) {
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float *input = (float *)0x10000000; // 单核版本:输入放在 L2 地址 0x10000000
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float *output = (float *)0x10040000; // 单核版本:输出放在 L2 地址 0x10040000
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int block_size[2] = {2, 2};
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int paddings[4] = {0, 0, 0, 0};
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int input_shape[4] = {1, 100, 10, 10};
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fp_spacetobatch_p(input, output, block_size, paddings, input_shape, sizeof(float));
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return 0;
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}
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