公开(公告)号：DE3854035T2

公开(公告)日：1996-02-29

申请号：DE3854035

申请日：1988-09-15

Applicant: IBM

Inventor： MCAULIFFE KEVIN PATRIK ,  MELTON EVELYN AU ,  NORTON VERN ALAN ,  PFISTER GREGORY FRANCIS ,  WAKEFIELD SCOTT PHILIP

IPC: G06F12/02 ,  G06F12/06 ,  G06F12/08 ,  G06F12/10 ,  G06F15/17

Abstract: An aperiodic mapping procedure for the mapping of logical to physical addresses is defined as a permutation function for generating optimized stride accesses in an interleaved multiple device system such as a large, parallel processing shared memory system wherein the function comprises a bit-matrix multiplication of a presented first (logical) address with a predetermined matrix to produce a second (physical) address. The permutation function maps the address from a first to a second address space for improved memory performance in such an interleaved memory system. Assuming that the memory has n logical address bits and 2 separately accessible memory devices (where d

公开(公告)号：DE3854035D1

公开(公告)日：1995-07-27

申请号：DE3854035

申请日：1988-09-15

Applicant: IBM

Inventor： MCAULIFFE KEVIN PATRIK ,  MELTON EVELYN AU ,  NORTON VERN ALAN ,  PFISTER GREGORY FRANCIS ,  WAKEFIELD SCOTT PHILIP

IPC: G06F12/02 ,  G06F12/06 ,  G06F12/08 ,  G06F12/10 ,  G06F15/17

Abstract: An aperiodic mapping procedure for the mapping of logical to physical addresses is defined as a permutation function for generating optimized stride accesses in an interleaved multiple device system such as a large, parallel processing shared memory system wherein the function comprises a bit-matrix multiplication of a presented first (logical) address with a predetermined matrix to produce a second (physical) address. The permutation function maps the address from a first to a second address space for improved memory performance in such an interleaved memory system. Assuming that the memory has n logical address bits and 2 separately accessible memory devices (where d