Patent ID: 8090926

Claim:
A multiple computer system with replicated shared memory, said system comprising: a multiplicity of computers each interconnected via a communications network and each executing a different portion of an applications program written to be executed on only a single computer, wherein each said computer has an independent local memory partitioned into two regions, a first one of said regions having content corresponding to corresponding memory content replicated on at least one other computer, and the second of said regions not corresponding to each other, wherein changes to the content of replicated memory in the first region of the local memory of any one of said multiple computers are transmitted via said communications network to the corresponding replicated memory in the first region of all the other ones of said multiple computers, wherein additions and/or deletions to the memory locations in the first region of the local memory of any one of said multiple computers are transmitted via said communications network to the first region of all the other ones of said multiple computers whereby the partition between said first and second regions changes with time.