dispatch_policy.hpp

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#pragma once

#include "cutlass/conv/convolution.h"
#include "cutlass/epilogue/thread/activation.h"
#include "cutlass/arch/arch.h"

#include "cute/layout.hpp"
#include "cute/numeric/integral_constant.hpp"

//////////////////////////////////////////////////////////////////////////////

//////////////////////////////////////////////////////////////////////////////

namespace cutlass::conv {

//////////////////////////////////////////////////////////////////////////////

//
// Policies for categorical dispatch of mainloop against kernel grid schedules
//
struct KernelImplicitTmaWarpSpecializedSm90 { };
struct KernelImplicitTmaWarpSpecializedSm90Cooperative { };
struct KernelImplicitTmaWarpSpecializedSm90Pingpong { };

//
// Collective Mainloop Policies
//

// n-buffer in smem (Hopper TMA), pipelined with Hopper GMMA and TMA, static schedule between TMA and GMMA
// for fprop
template<
  conv::Operator ConvOp_,
  int Stages_,
  int NumSpatialDimensions_,
  class ClusterShape_ = cute::Shape<cute::C<1>,cute::C<1>,cute::C<1>>,
  class KernelSchedule = KernelImplicitTmaWarpSpecializedSm90,
  int PipelineAsyncMmaStages_ = 1
>
struct MainloopSm90TmaGmmaWarpSpecializedImplicitGemm {
  static constexpr int Stages = Stages_;
  static constexpr int NumSpatialDimensions = NumSpatialDimensions_;
  static constexpr Operator ConvOp = ConvOp_;
  static constexpr int PipelineAsyncMmaStages = PipelineAsyncMmaStages_;
  using ClusterShape = ClusterShape_;
  using ArchTag = arch::Sm90;
  using Schedule = KernelSchedule;

  static_assert(NumSpatialDimensions >= 1);
  static_assert(! (cute::is_same_v<KernelSchedule,KernelImplicitTmaWarpSpecializedSm90Cooperative> ||
                   cute::is_same_v<KernelSchedule,KernelImplicitTmaWarpSpecializedSm90Pingpong>),
    "Persistent schedules not support for conv yet.");
};

//////////////////////////////////////////////////////////////////////////////

} // namespace cutlass::conv