快速与单纯:Triton中的2-单纯形注意力机制
Fast and Simplex: 2-Simplicial Attention in Triton
July 3, 2025
作者: Aurko Roy, Timothy Chou, Sai Surya Duvvuri, Sijia Chen, Jiecao Yu, Xiaodong Wang, Manzil Zaheer, Rohan Anil
cs.AI
摘要
近期研究表明,訓練損失隨模型規模與標記數量呈冪律關係增長,且實現計算最優模型需同步擴展模型規模與標記數量。然而,這些擴展定律基於數據無限供應的假設,主要適用於計算受限的場景。隨著現代大型語言模型日益依賴於海量的互聯網規模數據集,它們處於計算受限的假設正逐漸失效。這一轉變凸顯了對優先考慮標記效率的架構之需求。
在本研究中,我們探討了2-單純形Transformer的應用,該架構通過高效的Triton內核實現,將標準點積注意力推廣至三線性函數。我們證明,2-單純形Transformer在標記效率上優於標準Transformer:在固定標記預算下,規模相近的模型在涉及數學、編程、推理及邏輯的任務上表現更佳。我們通過展示2-單純形注意力相較於點積注意力,在知識與推理任務的擴展定律中改變了指數,從而量化了這些增益。
English
Recent work has shown that training loss scales as a power law with both
model size and the number of tokens, and that achieving compute-optimal models
requires scaling model size and token count together. However, these scaling
laws assume an infinite supply of data and apply primarily in compute-bound
settings. As modern large language models increasingly rely on massive
internet-scale datasets, the assumption that they are compute-bound is becoming
less valid. This shift highlights the need for architectures that prioritize
token efficiency.
In this work, we investigate the use of the 2-simplicial Transformer, an
architecture that generalizes standard dot-product attention to trilinear
functions through an efficient Triton kernel implementation. We demonstrate
that the 2-simplicial Transformer achieves better token efficiency than
standard Transformers: for a fixed token budget, similarly sized models
outperform their dot-product counterparts on tasks involving mathematics,
coding, reasoning, and logic. We quantify these gains by demonstrating that
2-simplicial attention changes the exponent in the scaling laws for knowledge
and reasoning tasks compared to dot product attention.