TPRELU¶

指令示意图¶

TPRELU tile operation

简介¶

带逐元素斜率 Tile 的逐元素参数化 ReLU (PReLU)。

数学语义¶

对每个元素 (i, j) 在有效区域内：

\[ \mathrm{dst}_{i,j} = (\mathrm{src0}_{i,j} > 0) ? \mathrm{src0}_{i,j} : (\mathrm{src0}_{i,j} \cdot \mathrm{src1}_{i,j}) \]

汇编语法¶

PTO-AS 形式：参见 PTO-AS Specification.

同步形式：

%dst = tprelu %src0, %src1 : !pto.tile<...>

AS Level 1 (SSA)¶

%dst = pto.tprelu %src0, %src1 : (!pto.tile<...>, !pto.tile<...>) -> !pto.tile<...>

AS Level 2 (DPS)¶

pto.tprelu ins(%src0, %src1 : !pto.tile_buf<...>, !pto.tile_buf<...>) outs(%dst : !pto.tile_buf<...>)

AS Level 1（SSA）¶

%dst = pto.tprelu %src0, %src1 : (!pto.tile<...>, !pto.tile<...>) -> !pto.tile<...>

AS Level 2（DPS）¶

pto.tprelu ins(%src0, %src1 : !pto.tile_buf<...>, !pto.tile_buf<...>) outs(%dst : !pto.tile_buf<...>)

C++ 内建接口¶

声明于 include/pto/common/pto_instr.hpp:

template <typename TileDataDst, typename TileDataSrc0, typename TileDataSrc1, typename TileDataTmp,
          typename... WaitEvents>
PTO_INST RecordEvent TPRELU(TileDataDst &dst, TileDataSrc0 &src0, TileDataSrc1 &src1, TileDataTmp &tmp, WaitEvents &... events);

约束¶

The op iterates over dst.GetValidRow() / dst.GetValidCol().
Temporary space is required by A3 for calculation, while not used by A5.
For A3, 2 source Tile, destination Tile, temporary space must in different memory range without overlapping.

示例¶

#include <pto/pto-inst.hpp>

using namespace pto;

void example() {
  using TileT = Tile<TileType::Vec, float, 16, 16>;
  TileT x, slope, out, tmp;
  TPRELU(out, x, slope, tmp);
}