XPXM/C: a taxonomy of processor coupling techniques
Richard Artym, J.S. Mason · IEE Proceedings E Computers and Digital Techniques · 1988
A well established but ad hoc set of interconnection structures, used in the classification of shared-memory multiprocessors, is developed into a simple orthogonal taxonomy of processor coupling techniques, ‘XPXM’, based on the multiplicity of simultaneously-active access paths between processors and memory modules. Channel modules are then introduced and used to define the corresponding ‘XPXC’ taxonomy describing multiprocessors which do not employ shared memory. Examples of existing multiprocessor designs in each class of the combined taxonomy are presented, yielding a representative overview of the coupling techniques in most common use.