"2020春-lecture121：虚拟存储与并行计算，作业与阅读要点"

The lecture121 of the spring semester in 2020 focused on the topic of virtual memory and the concept of hidden memory latency in computer architecture. The lecture covered specific sections from the fifth chapter, namely 5.4 and 5.8, and recommended additional reading materials, including Peter J. Denning's "Virtual Memory" from ACM Computing Surveys in 1970. The speaker for this lecture was Dr. Luān Zhōngzhì from Beihang University's School of Computer Science and the Sino-German United Software Research Institute. The lecture emphasized the importance of understanding virtual storage and addressing the hidden memory latency in computer systems. The lecture also included reminders for upcoming assignments, including the submission of Assignment 5, which had already passed its deadline, and the announcement of Assignment 6, which was set to be released that evening with a deadline of June 19th. Additionally, the lecture mentioned an upcoming experiment, Experiment 2-5, which was scheduled for release on May 10th with an expected deadline of July 10th. The recommended reading materials for the lecture included essential articles on virtual storage and parallel processing. These included Amdahl's "Validity of the single processor approach to achieving large scale computing capabilities" from AFIPS in 1967, Lamport's "How to Make a Multiprocessor Computer That Correctly Executes Multiprocess Programs" from IEEE Transactions on Computers in 1979, and Patterson's article on "Parallel Computing" from 2020. Overall, the lecture was a comprehensive overview of virtual memory and hidden memory latency in computer architecture, providing students with the necessary theoretical and practical knowledge to understand and address these critical components of computer systems.