Task Matching Circuit for Selective Processor Synchronization

The patent segments software tasks into high-assurance tasks requiring synchronization and low-assurance tasks that do not. The task matching circuit only synchronizes high-assurance tasks, while low-assurance tasks execute independently on each processor. This segmentation resolves the contradiction by maintaining synchronization reliability for critical tasks without imposing lock-step complexity on all operations.

The patent applies different synchronization qualities to different task types. High-assurance tasks receive full synchronization treatment through the task matching circuit, while low-assurance tasks execute with relaxed synchronization requirements. This local differentiation resolves the contradiction by providing appropriate synchronization only where needed, reducing overall device complexity.

By segmenting tasks into synchronized and non-synchronized categories, the patent allows low-assurance tasks to execute independently without waiting for processor alignment. This eliminates the productivity penalty of lock-step operation for non-critical tasks while maintaining synchronization reliability for high-assurance tasks through the task matching circuit.

The patent applies synchronization only partially - specifically to high-assurance tasks that require it - rather than applying lock-step operation to all tasks. This partial action resolves the contradiction by providing sufficient synchronization reliability where needed while avoiding the productivity loss that would result from synchronizing all tasks.

The patent segments the software task set into high-assurance and low-assurance categories, applying energy-intensive synchronization only to high-assurance tasks through the task matching circuit. Low-assurance tasks execute without synchronization overhead, significantly reducing total energy consumption while maintaining reliability for critical operations.

The patent changes the synchronization parameter from a binary lock-step mode to a selective mode based on task classification. The task matching circuit dynamically determines which tasks require synchronization, adjusting the synchronization parameter accordingly. This resolves the contradiction by optimizing energy usage while preserving reliability where necessary.