Issue No. 08 - August (1980 vol. 29)
S.S.L. Chang , Department of Electrical Engineering, State University of New York
A multiple-read single-write (MRSW) memory is proposed as a hardware solution to the memory and bus conflict problem in distributed and multiprocessing computing systems. Each memory module is assigned to a host processor which is hardwired to its read?write channel. Its read-only channels are shared by a few closely coupled processors, I/O devices, and/or a data bus which provides access to all other processors. The exact processor-memory organization is determined by a module correlation criteria, which also yields a quantitative measure of the effectiveness of the solution. In a class of scientific computing problems where module correlation is limited to neighboring modules, the memory conflict problem is completely eliminated. The processors may operate as array processors controlled by a CPU, or they may operate autonomously with capabilities of originating programs or transactions. The location conflict problem of multiaccess memories is resolved without additional hardware or delay.
multiprocessing organization, Array processing, database management, data security, distributed computing, fast scientific computing, memory conflict, memory location conflict, memory organization, multiple access memory
S. Chang, "Multiple-Read Single-Write Memory and Its Applications," in IEEE Transactions on Computers, vol. 29, no. , pp. 689-694, 1980.