117 lines
5.0 KiB
Python
117 lines
5.0 KiB
Python
#################################################################################################
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#
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# Copyright (c) 2025 - 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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#
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# 1. Redistributions of source code must retain the above copyright notice, this
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# list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# 3. Neither the name of the copyright holder nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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#################################################################################################
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"""
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Emitter for Sm100 Epilogue Visitor
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"""
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from cutlass_library import DataType, DataTypeTag, EpilogueScheduleTag, OpcodeClassTag
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from cutlass_cppgen.backend.library import to_blackwell_threadblock_shape
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from cutlass_cppgen.backend import GemmOperationUniversal
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from cutlass_cppgen.backend.evt.backend.emitter_base import FusionCallbacks
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from cutlass_cppgen.backend.evt.ir.node import TupleEmitter
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class Sm100CollectiveEpilogue:
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def __init__(self, tile_description,
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kernel_schedule,
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epilogue_schedule,
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element_accumulator,
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element_d,
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fusion_callbacks) -> None:
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self.cta_tile_mnk, _ = to_blackwell_threadblock_shape(tile_description, tile_description.cluster_shape, kernel_schedule)
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self.element_accumulator = element_accumulator
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if fusion_callbacks.dag_ir.has_node("C"):
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self.element_c = fusion_callbacks.dag_ir.get_node_meta("C").element
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else:
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self.element_c = DataType.void
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self.element_d = element_d
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self.schedule = epilogue_schedule
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self.fusion_callbacks = fusion_callbacks
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self.opclass = tile_description.math_instruction.opcode_class
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@property
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def CtaTileMNK(self) -> str:
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"""
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The threadblock shape
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"""
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return f"cute::Shape<_{self.cta_tile_mnk[0]}, _{self.cta_tile_mnk[1]}, _{self.cta_tile_mnk[2]}>"
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@property
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def EpilogueTileType(self) -> str:
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"""
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The epilogue tile type
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"""
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return "cutlass::epilogue::collective::EpilogueTileAuto"
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@property
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def Schedule(self) -> str:
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return EpilogueScheduleTag[self.schedule]
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def emit(self):
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tuple_emitter = TupleEmitter("int64_t")
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stride_D_str = self.fusion_callbacks.dag_ir.get_node_meta("D").underlying_impl.stride_mnl
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stride_C_str = stride_D_str
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if self.fusion_callbacks.dag_ir.has_node("C"):
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stride_C_str = self.fusion_callbacks.dag_ir.get_node_meta("C").underlying_impl.stride_mnl
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callback_decl, callback_name = self.fusion_callbacks.emit()
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return callback_name, f"""
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using EpilogueDescriptor = cutlass::epilogue::collective::detail::Sm100EpilogueDescriptor<
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{OpcodeClassTag[self.opclass]},
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{self.CtaTileMNK}, {self.EpilogueTileType},
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{DataTypeTag[self.element_accumulator]}, {DataTypeTag[self.element_c]}, {DataTypeTag[self.element_d]},
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{self.Schedule}, {stride_C_str}, {stride_D_str},
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false /* IsPerColScaleSupported */,
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false /* IsBlockScaleSupported */
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>;
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{callback_decl}
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"""
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class Sm100Emitter:
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def __init__(self, operation: GemmOperationUniversal, graph) -> None:
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fusion_callbacks = FusionCallbacks(graph, cc=100, emit_CD=False)
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self.collective_epilogue = Sm100CollectiveEpilogue(
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tile_description=operation.tile_description,
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kernel_schedule=operation.tile_description.kernel_schedule,
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epilogue_schedule=operation.tile_description.epilogue_schedule,
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element_accumulator=operation.tile_description.math_instruction.element_accumulator,
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element_d=fusion_callbacks.dag_ir.get_node_meta("D").element,
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fusion_callbacks=fusion_callbacks
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)
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def emit(self):
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return self.collective_epilogue.emit()
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