Memory prefetching in multiple GPU environment

US11232533B2 · kind B2 · utility

Assignee

• Intel Corporation · US

Inventors

• Joydeep Ray · Folsom, US
• Aravindh Anantaraman · Folsom, US
• Valentin Andrei · San Jose, US
• Abhishek R. Appu · Cameron Park, US
• Nicolas C. Galoppo Von Borries · Portland, US
• Varghese George · Folsom, US
• Altug Koker · Cameron Park, US
• Elmoustapha Ould-Ahmed-Vall · Chandler, US
• Mike B. Macpherson · Portland, US
• Subramaniam Maiyuran · Citrus, US

Key dates

• Filing date: Mar 15, 2019
• Grant date: Jan 25, 2022
• Expiry date: Mar 15, 2039

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T15/005
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Embodiments are generally directed to memory prefetching in multiple GPU environment. An embodiment of an apparatus includes multiple processors including a host processor and multiple graphics processing units (GPUs) to process data, each of the GPUs including a prefetcher and a cache; and a memory for storage of data, the memory including a plurality of memory elements, wherein the prefetcher of each of the GPUs is to prefetch data from the memory to the cache of the GPU; and wherein the prefetcher of a GPU is prohibited from prefetching from a page that is not owned by the GPU or by the host processor.