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/***************************************************************************************************
* Copyright (c) 2023 - 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: BSD-3-Clause
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
**************************************************************************************************/
/*! \file
\brief This file contains definitions and utility functions for describing problem shapes
for 3.x Ptr-Array GEMMs and Grouped GEMMs.
*/
#pragma once
#include "cutlass/cutlass.h"
#include "cutlass/tensor_coord.h"
#include "cute/container/array.hpp"
#if ! defined(__CUDACC_RTC__)
#include <initializer_list>
#endif
////////////////////////////////////////////////////////////////////////////////////////////////////
namespace cutlass::gemm {
////////////////////////////////////////////////////////////////////////////////////////////////////
template <class ProblemShape_>
struct GroupProblemShape {
using UnderlyingProblemShape = ProblemShape_;
int32_t num_groups = 1;
UnderlyingProblemShape* problem_shapes = nullptr;
UnderlyingProblemShape const* host_problem_shapes = nullptr;
CUTLASS_HOST_DEVICE
int32_t groups() const { return num_groups; }
CUTLASS_HOST_DEVICE
UnderlyingProblemShape const
get_problem_shape(int32_t group_idx) const {
return problem_shapes[group_idx];
}
CUTLASS_HOST_DEVICE
UnderlyingProblemShape const
get_host_problem_shape(int32_t group_idx) const {
return host_problem_shapes[group_idx];
}
CUTLASS_HOST_DEVICE
bool
is_host_problem_shape_available() {
return host_problem_shapes != nullptr;
}
};
template <class ProblemShape_>
class ArrayProblemShape {
public:
using UnderlyingProblemShape = ProblemShape_;
ArrayProblemShape() = default;
ArrayProblemShape(UnderlyingProblemShape ps) : problem_shape_(ps) {}
// Num of groups for Ptr-Array GEMM always remain one, just the number of batches (l) can vary
// This is just to maintain uniformity with GroupProblemShape
constexpr int32_t groups() const { return 1; }
UnderlyingProblemShape* problem_shapes() const {
return &problem_shape_;
}
UnderlyingProblemShape const* host_problem_shapes() const {
return &problem_shape_;
}
// This is just to maintain uniformity with GroupProblemShape
CUTLASS_HOST_DEVICE
UnderlyingProblemShape const
get_problem_shape(int32_t /* unused */ = 0) const {
return problem_shape_;
}
CUTLASS_HOST_DEVICE
UnderlyingProblemShape const
get_host_problem_shape(int32_t /* unused */ = 0) const {
return problem_shape_;
}
CUTLASS_HOST_DEVICE
bool
is_host_problem_shape_available() {
return true;
}
private:
UnderlyingProblemShape problem_shape_{};
};
} // namespace cutlass::gemm
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