{"id":986337,"date":"2023-11-21T18:46:02","date_gmt":"2023-11-22T02:46:02","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/?post_type=msr-research-item&p=986337"},"modified":"2023-11-21T18:46:02","modified_gmt":"2023-11-22T02:46:02","slug":"with-shared-microexponents-a-little-shifting-goes-a-long-way","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/with-shared-microexponents-a-little-shifting-goes-a-long-way\/","title":{"rendered":"With Shared Microexponents, A Little Shifting Goes a Long Way"},"content":{"rendered":"

This paper introduces Block Data Representations (BDR), a framework for exploring and evaluating a wide spectrum of narrow-precision formats for deep learning. It enables comparison of popular quantization standards, and through BDR, new formats based on shared microexponents (MX) are identified, which outperform other state-of-the-art quantization approaches, including narrow-precision floating-point and block floating-point. MX utilizes multiple levels of quantization scaling with ultra-fine scaling factors based on shared microexponents in the hardware. The effectiveness of MX is demonstrated on real-world models including large-scale generative pretraining and inferencing, and production-scale recommendation systems.<\/p>\n","protected":false},"excerpt":{"rendered":"

This paper introduces Block Data Representations (BDR), a framework for exploring and evaluating a wide spectrum of narrow-precision formats for deep learning. It enables comparison of popular quantization standards, and through BDR, new formats based on shared microexponents (MX) are identified, which outperform other state-of-the-art quantization approaches, including narrow-precision floating-point and block floating-point. MX utilizes 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