Huazhong University of Science and Technology Assigned Patent

Huazhong University of Science and Technology, Hubei, China, has been assigned a patent (11989090) developed by Tong, Wei, Feng, Dan, Liu, Jingning, Wei, Xueliang, and Zhu, Weilin, Hubei, China, for “method and system for ensuring failure atomicity in non-volatile memory.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “Disclosed in the present invention are a method and a system for ensuring the failure atomicity in a non-volatile memory, which belong to the field of computer storage. The method comprises: executing transactions encapsulated by one or more operations that need to ensure the failure atomicity in accordance with the following steps: executing operations in a current transaction in sequence, for each write operation in the current transaction, determining whether the oldest value of its corresponding data is saved into a log of the non-volatile memory, if so, then creating an UndoRedo log entry for it, otherwise creating a Redo log entry for it, using corresponding log management strategies according to types of log entries, after all operations are executed, committing the current transaction, and completing the execution of the current transaction, wherein information recorded in the UndoRedo log entries comprises: transaction number, write operation address, and oldest value and new value of corresponding data, and information recorded in the Redo log entries comprises: transaction number, write operation address, and new value of corresponding data. The present invention can reduce the overhead caused by ensuring the failure atomicity in the NVMM.”

The patent application was filed on 2020-06-16 (17/763926).