68 lines
2.9 KiB
Markdown
68 lines
2.9 KiB
Markdown
# NVIDIA Hopper SSD (State Space Decomposition) CUDA Example
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## Overview
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This example demonstrates the implementation of State Space Decomposition (SSD) operations on NVIDIA's Hopper GPU architecture. It showcases the use of CUTLASS library components for high-performance tensor computations that efficiently leverage Hopper's advanced hardware capabilities, including TMA (Tensor Memory Accelerator) and warp specialization.
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## System Requirements
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+ NVIDIA GPU with Hopper Architecture (compute capability 9.0)
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+ CUDA Toolkit 12.0 or newer
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+ C++17 compatible compiler
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## Build the example
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Follow the cutlass example building.
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## Command Line Options
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The example supports the following command line options:
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--help: Display the usage statement
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--iterations=<int>: Number of iterations for benchmarking (default: 1)
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--without_verify: Skip result verification
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--verbose: Print execution time per kernel
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--G=<int>: Group size (default: 2)
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--B=<int>: Batch size (default: 3)
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--E=<int>: Expanded factor (default: 2)
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--H=<int>: Number of heads (default: 2)
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## Limitation
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+ Only support LxDxN = 128x64x128
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+ Uses bfloat16 precision for input/output tensors
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## Performance
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+ Utilizes TMA (Tensor Memory Accelerator) for efficient memory access
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+ Implements warp-specialized kernels for optimal resource utilization
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+ Limited by the SEGSUM (segment sum) computation part
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+ ALU bound operation
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# Copyright
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Copyright (c) 2024 - 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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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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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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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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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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