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Abstract

A method and control system computing platform for a dialysis machine that uses Symmetric Multi-Processing (SMP) architecture. The SMP architecture tightly couples multiple (e.g., 2) independent processors by sharing memory between the processors. A single shared memory is used by both processors in order to facilitate communication between the processors and reduce cost by eliminating the expense of redundant memory. In this way, the two, or in general 'N' processors, increase processor throughput by allowing the execution of N processes in parallel while without requiring extra memory and without having a single point of failure in the computer. In the event of a bus failure on the circuit card, the computer is reset using distributed hardware watchdogs. The watchdog reset signal is also sent to the hardware components of the dialysis machine in order to place the system in a safe.

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First Claim