TORS

Instruction Diagram

Introduction

Performs element-wise bitwise OR between a tile and a scalar.

Mathematical Semantics

For each element (i, j) within the valid region:

$$\mathrm{dst}_{i,j} = \mathrm{src}_{i,j} \;|\; \mathrm{scalar}$$

Assembly Syntax

Synchronous form:

%dst = tors %src, %scalar : !pto.tile<...>, i32

AS Level 1 (SSA)

%dst = pto.tors %src, %scalar : (!pto.tile<...>, dtype) -> !pto.tile<...>

AS Level 2 (DPS)

pto.tors ins(%src, %scalar : !pto.tile_buf<...>, dtype) outs(%dst : !pto.tile_buf<...>)

C++ Built-in APIs

Declared in include/pto/common/pto_instr.hpp:

The public include header is <pto/pto-inst.hpp>, and the internal declaration is located in pto/common/pto_instr.hpp.

template <typename TileDataDst, typename TileDataSrc, typename... WaitEvents>
PTO_INST RecordEvent TORS(TileDataDst &dst, TileDataSrc &src, typename TileDataDst::DType scalar, WaitEvents &... events);

Constraints

• Implementation check (Atlas A2/A3 training products/Atlas A2/A3 inference products):
  • Applicable to integer element types.
  • dst and src must use the same element type.
  • dst and src must be vector tiles.
  • Runtime: src.GetValidRow() == dst.GetValidRow() and src.GetValidCol() == dst.GetValidCol().
  • In manual mode, setting the source tile and destination tile to the same memory is not supported.
• Implementation check (Ascend 950PR/Ascend 950DT):
  • Applicable to the integer element types supported by TORS.
  • dst and src must use the same element type.
  • dst and src must be vector tiles.
  • At runtime: src.GetValidRow() == dst.GetValidRow() and src.GetValidCol() == dst.GetValidCol().
  • In manual mode, setting the source tile and the destination tile to the same memory is not supported.
• Valid region:
  • This operation uses dst.GetValidRow()/dst.GetValidCol() as the iteration domain.

Examples

#include <pto/pto-inst.hpp>

using namespace pto;

void example() {
  using TileDst = Tile<TileType::Vec, uint16_t, 16, 16>;
  using TileSrc = Tile<TileType::Vec, uint16_t, 16, 16>;
  TileDst dst;
  TileSrc src;
  TORS(dst, src, 0xffu);
}

ASM Examples

Automatic Mode

# Automatic mode: the compiler/runtime is responsible for resource placement and scheduling.
%dst = pto.tors %src, %scalar : (!pto.tile<...>, dtype) -> !pto.tile<...>

Manual Mode

# Manual mode: explicitly bind resources first, then issue the instruction.
# Optional (when the instruction contains a tile operand):
# pto.tassign %arg0, @tile(0x1000)
# pto.tassign %arg1, @tile(0x2000)
%dst = pto.tors %src, %scalar : (!pto.tile<...>, dtype) -> !pto.tile<...>

PTO Assembly Form

%dst = tors %src, %scalar : !pto.tile<...>, i32
# AS Level 2 (DPS)
pto.tors ins(%src, %scalar : !pto.tile_buf<...>, dtype) outs(%dst : !pto.tile_buf<...>)