International Business Machines Corporation

Robert Reist Richardson

James Warren Dieffenderfer

Vincent John Smoral

Michael C Dapp

Thomas Norman Barker

Clive Allan Collins

Richard Edward Nier

Donald Michael Lesmeister

Eric Eugene Retter

David B Rolfe

Billy J Knowles

Peter Michael Kogge

Paul Amba Wilkinson

Richard Ernest Miles

Nicholas Jerome Schoonover

James Robert Stupp

David Christopher Kuchinski

Donald George Grice

Donald G Grice

John David Jabusch

Linda Anne Kovacs

Timothy G Plzak

David Christoper Kuchinski

A parallel array processor for massively parallel applications is formed with low power CMOS with DRAM processing while incorporating processing elements on a single chip. Eight processor memory elements on a single chip have their own associated processing element, significant memory, and I/O and are interconnected with a hypercube based, but modified, topology. These nodes are then interconnected, either by a hypercube, modified hypercube, or ring, or ring within ring network topology. The architecture uses all the pins for networking. Each chip has eight 16 bit processors, and eight respective 32K memories. I/O has three internal ports and one external port shared by the plural processors on the chip. Significant software flexibility is provided to enable quick implementation of existing programs written in common languages. The scalable chip has internal and external connections for broadcast and asynchronous SIMD, MIMD and SIMIMD (SIMD/MIMD) with dynamic switching of modes. A fully distributed programmable router is provided by the processing memory elements that form a node. There is program compatibility for the fully scalable system.

APAP I/O programmable router

A parallel array processor for massively parallel applications is formed with low power CMOS with DRAM processing while incorporating processing elements on a single chip. Eight processors on a single chip have their own associated processing element, significant memory, and I/O and are interconnected with a hypercube based, but modified, topology. These nodes are then interconnected, either by a hypercube, modified hypercube, or ring, or ring within ring network topology. Conventional microprocessor MMPs consume pins and time going to memory. The new architecture merges processor and memory with multiple PMEs (eight 16 bit processors with 32K and I/O) in DRAM and has no memory access delays and uses all the pins for networking. The chip can be a single node of a fine-grained parallel processor. Each chip will have eight 16 bit processors, each processor providing 5 MIPs performance. I/O has three internal ports and one external port shared by the plural processors on the chip. Significant software flexibility is provided to enable quick implementation of existing programs written in common languages. It is a developable and expandable technology without need to develop new pinouts, new software, or new utilities as chip density increases and new hardware is provided for a chip function. The scalable chip PME has internal and external connections for broadcast and asynchronous SIMD, MIMD and SIMIMD (SIMD/MIMD) with dynamic switching of modes. The chip can be used in systems which employ 32, 64 or 128,000 processors, and can be used for lower, intermediate and higher ranges. Local and global memory functions can all be provided by the chips themselves, and the system can connect to and support other global memories and DASD. The chip can be used as a microprocessor accelerator, in personal computer applications, as a vision or avionics computer system, or as workstation or supercomputer. There is program compatibility for the fully scalable system.

Fully distributed processing memory element

A computer system having a plurality of processors and memory including a plurality of scalable nodes having multiple like processor memory elements. Each of the processor memory elements has a plurality of communication paths for communication within a node to other like processor memory elements within the node. Each of the processor memory elements also has a communication path for communication external to the node to another like scalable node of the computer system.

Advanced parallel array processor (APAP)

A controller for a SIMD processor array that can execute instructions within each processing element is described. This three stage hierarchical controller executes instructions at the function, routine, and micro-level, to maximize the effectiveness of processing within the array elements themselves. The routine sequencer is hardwired to perform looping and flow control operations using DO/WHILE, IF/THEN/ELSE, and GO-SUB constructs. A pipeline is provided to maintain a steady flow of commands to the array, and means is provided to monitor command execution progress and to provide feedback of progress to the stages of the controller.

Controller for a SIMD/MIMD array having an instruction sequencer

SIMD/MIMD processing memory element (PME)

Advanced parallel array processor(APAP)

An apparatus is provided which tests the magnitude and sign digits of packed decimal binary numbers during performance of arithmetic operations which combine the numbers for the purpose of setting status bits used for setting condition codes, determining execution paths, setting the sign of the result and detecting invalid conditions.

Predetermination of result conditions of decimal operations

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Vestal, NY, United States of America

Robert Reist Richardson