{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8516199","patent":{"patent_number":"US-8516199","title":"Bandwidth-efficient directory-based coherence protocol","assignee":null,"inventors":[],"filing_date":"2009-03-17T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["G06F","G06F"],"num_claims":17,"abstract":"Some embodiments of the present invention provide a system that processes a request for a cache line in a multiprocessor system that supports a directory-based cache-coherence scheme. During operation, the system receives the request for the cache line from a requesting node at a home node, wherein the home node maintains directory information for all or a subset of the address space which includes the cache line. Next, the system performs an action at the home node, which causes a valid copy of the cache line to be sent to the requesting node. The system then completes processing of the request at the home node without waiting for an acknowledgment indicating that the requesting node received the valid copy of the cache line."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Bandwidth-efficient directory-based coherence protocol","description":"Some embodiments of the present invention provide a system that processes a request for a cache line in a multiprocessor system that supports a directory-based cache-coherence scheme. During operation","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8516199","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8516199","citation_suggestion":"Patentable. \"Bandwidth-efficient directory-based coherence protocol\" (US-8516199). https://patentable.app/patents/US-8516199","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8516199","json":"https://patentable.app/api/llm-context/US-8516199","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T10:35:46.195Z"}