TFMODS¶

Tile Operation Diagram¶

TFMODS tile operation

Introduction¶

Elementwise floor with a scalar: fmod(src, scalar).

Math Interpretation¶

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

\[\mathrm{dst}_{i,j} = \mathrm{fmod}(\mathrm{src}_{i,j}, \mathrm{scalar})\]

Assembly Syntax¶

PTO-AS form: see PTO-AS Specification.

Synchronous form:

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

IR Level 1 (SSA)¶

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

IR Level 2 (DPS)¶

pto.tfmods ins(%src, %scalar : !pto.tile_buf<...>, f32) outs(%dst : !pto.tile_buf<...>)

C++ Intrinsic¶

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

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

Constraints¶

Division-by-zero behavior is target-defined; the CPU simulator asserts in debug builds.
The op iterates over dst.GetValidRow() / dst.GetValidCol().

Examples¶

#include <pto/pto-inst.hpp>

using namespace pto;

void example() {
  using TileT = Tile<TileType::Vec, float, 16, 16>;
  TileT x, out;
  TFMODS(out, x, 3.0f);
}

ASM Form Examples¶

Auto Mode¶

# Auto mode: compiler/runtime-managed placement and scheduling.
%dst = pto.tfmods %src, %scalar : !pto.tile<...>, f32

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.tfmods %src, %scalar : !pto.tile<...>, f32

PTO Assembly Form¶

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