Invention Grant
- Patent Title: Differential pipeline delays in a coprocessor
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Application No.: US15837974Application Date: 2017-12-11
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Publication No.: US11709681B2Publication Date: 2023-07-25
- Inventor: Jay Fleischman , Michael Estlick , Michael Christopher Sedmak , Erik Swanson , Sneha V. Desai
- Applicant: ADVANCED MICRO DEVICES, INC.
- Applicant Address: US CA Santa Clara
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US CA Santa Clara
- Main IPC: G06F9/38
- IPC: G06F9/38

Abstract:
A coprocessor such as a floating-point unit includes a pipeline that is partitioned into a first portion and a second portion. A controller is configured to provide control signals to the first portion and the second portion of the pipeline. A first physical distance traversed by control signals propagating from the controller to the first portion of the pipeline is shorter than a second physical distance traversed by control signals propagating from the controller to the second portion of the pipeline. A scheduler is configured to cause a physical register file to provide a first subset of bits of an instruction to the first portion at a first time. The physical register file provides a second subset of the bits of the instruction to the second portion at a second time subsequent to the first time.
Public/Granted literature
- US20190179643A1 DIFFERENTIAL PIPLINE DELAYS IN A COPROCESSOR Public/Granted day:2019-06-13
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