Types of Multiprocessing. Several categories of multiprocessing (MP) systems exist, as described below: Shared Nothing MP (pure cluster) Each processor is a complete stand-alone machine and runs a copy of the operating system. The processors share nothing (each has its own memory, caches, and disks), but they are interconnected. Clustering Pros and Cons. Pros. Cons. Mid-tier scalability. Hot disk spots with large batch loads. LARGE clustered SMP machines work similar to large MPP nodes. Cannot effectively control “slices” of data via partitioning, making it a challenge to “balance” data sets across bandwidth. Single point of management

1.0 Symmetric Multiprocessing introduction. This document describes the Symmetric Multiprocessing (SMP) implementation in Allegro CL on certain platforms. See also the multiprocessing.htm document, which describes the older Lisp-based uniprocessor implementation but most of the functionality applies to SMP as well. Panel confronts multicore pros and cons Richard Goering, EE Times (03/23/2006 8:42 PM EST) SANTA CLARA, Calif. — Panelists at the Multicore Expo here Wednesday (March 22) generally agreed that multitasking and multiprocessing have bright futures, although they identified some challenges as well.