The authors propose a new orthogonal partially shared memoryarchitecture for the design of multiprocessor systems. The architectureallows processors to partially share a 2-D array of memory modules in anorthogonal way with fewer limitations than those imposed by thetraditional orthogonal (OMP) architecture. Processors have direct accessto large neighborhoods of memory modules which can be used to improveprocessing efficiency, namely with respect to local processing. The maincharacteristics of the new architecture are described and compared withthe traditional orthogonal architecture. Image processing algorithmshave been mapped onto the new architecture, in order to evaluate itsefficiency for local processing. The fault tolerant characteristics ofthe system are also discussed
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