{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9632934","patent":{"patent_number":"US-9632934","title":"Maintaining coherence when removing nodes from a directory-based shared memory system","assignee":null,"inventors":[],"filing_date":"2013-03-14T00:00:00.000Z","publication_date":"2017-04-25T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F"],"num_claims":15,"abstract":"A high performance computing system and methods are disclosed. The system includes logical partitions with physically removable nodes that each have at least one processor, and memory that can be shared with other nodes. Node hardware may be removed or allocated to another partition without a reboot or power cycle. Memory sharing is tracked using a memory directory. Cache coherence operations on the memory directory include a test to determine whether a given remote node has been removed. If the remote node is not present, system hardware simulates a valid response from the missing node."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Maintaining coherence when removing nodes from a directory-based shared memory system","description":"A high performance computing system and methods are disclosed. The system includes logical partitions with physically removable nodes that each have at least one processor, and memory that can be shar","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9632934","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-9632934","citation_suggestion":"Patentable. \"Maintaining coherence when removing nodes from a directory-based shared memory system\" (US-9632934). https://patentable.app/patents/US-9632934","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9632934","json":"https://patentable.app/api/llm-context/US-9632934","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T15:38:41.061Z"}