Synthesized answer
The passages describe a method for ensuring a multiprocess program executes correctly on a multiprocessor computer [1]. This method involves issuing explicit commands to synchronize memory accesses, which are necessary for modern multiprocessors [1].
The key concept presented is that the synchronization commands needed for correct execution can be derived directly from a correctness proof of the algorithm [1]. This means that by proving an algorithm is correct, the specific instructions required to synchronize memory accesses on a multiprocessor can be generated [1].
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: How to Make a Correct Multiprocess Program Execute Correctly on a Multiprocessor by Leslie Lamport Categories: Computer programs Pages: 10 Snippet: Abstract: "A multiprocess program executing on a modern multiprocessor must issue explicit commands to synchronize memory accesses. A method is proposed for deriving the necessary commands from a correctness proof of the algorithm."