TADDS

Tile Operation Diagram

TADDS tile operation

Introduction

Elementwise add a scalar to a tile.

Math Interpretation

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

\[ \mathrm{dst}_{i,j} = \mathrm{src}_{i,j} + \mathrm{scalar} \]

Assembly Syntax

PTO-AS form: see PTO-AS Specification.

Synchronous form:

%dst = tadds %src, %scalar : !pto.tile<...>, f32

IR Level 1 (SSA)

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

IR Level 2 (DPS)

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

C++ Intrinsic

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

template <typename TileData, typename... WaitEvents>
PTO_INST RecordEvent TADDS(TileData& dst, TileData& src0, typename TileData::DType scalar, WaitEvents&... events);

Constraints

  • Implementation checks (A2A3):
  • TileData::DType must be one of: int32_t, int, int16_t, half, float16_t, float, float32_t.
  • Tile location must be vector (TileData::Loc == TileType::Vec).
  • Static valid bounds: TileData::ValidRow <= TileData::Rows and TileData::ValidCol <= TileData::Cols.
  • Runtime: src0.GetValidRow() == dst.GetValidRow() and src0.GetValidCol() == dst.GetValidCol().
  • Tile layout must be row-major (TileData::isRowMajor).
  • Implementation checks (A5):
  • TileData::DType must be one of: uint8_t, int8_t, uint16_t, int16_t, uint32_t, int32_t, half, float, bfloat16_t.
  • Tile location must be vector (TileData::Loc == TileType::Vec).
  • Static valid bounds: TileData::ValidRow <= TileData::Rows and TileData::ValidCol <= TileData::Cols.
  • Runtime: src0.GetValidCol() == dst.GetValidCol().
  • Tile layout must be row-major (TileData::isRowMajor).
  • Valid region:
  • The op uses dst.GetValidRow() / dst.GetValidCol() as the iteration domain.

Examples

Auto

#include <pto/pto-inst.hpp>

using namespace pto;

void example_auto() {
  using TileT = Tile<TileType::Vec, float, 16, 16>;
  TileT src, dst;
  TADDS(dst, src, 1.0f);
}

Manual

#include <pto/pto-inst.hpp>

using namespace pto;

void example_manual() {
  using TileT = Tile<TileType::Vec, float, 16, 16>;
  TileT src, dst;
  TASSIGN(src, 0x1000);
  TASSIGN(dst, 0x2000);
  TADDS(dst, src, 1.0f);
}

ASM Form Examples

Auto Mode

# Auto mode: compiler/runtime-managed placement and scheduling.
%dst = pto.tadds %src, %scalar : (!pto.tile<...>,dtype) -> !pto.tile<...>

Manual Mode

# Manual mode: bind resources explicitly before issuing the instruction.
# Optional for tile operands:
# pto.tassign %arg0, @tile(0x1000)
# pto.tassign %arg1, @tile(0x2000)
%dst = pto.tadds %src, %scalar : (!pto.tile<...>,dtype) -> !pto.tile<...>

PTO Assembly Form

%dst = tadds %src, %scalar : !pto.tile<...>, f32
# IR Level 2 (DPS)
pto.tadds ins(%src, %scalar : !pto.tile_buf<...>, dtype) outs(%dst : !pto.tile_buf<...>)