Abstract: Systems and methods for conducting processor health-checks are provided. In one embodiment, a method for evaluating the status of a processor is provided. The method includes, for example, initializing and executing an operating system, de-allocating the processor from the available pool or system resources and performing a health-check on the processor while the operating system is executing.

Abstract: Systems and methods for repairing a processor are provided. In one embodiment, a method for repairing a processor is provided that includes, for example, the steps of initializing and executing an operating system, determining that a cache element is faulty, and swapping in a spare cache element for said faulty cache element while the operating system is executing.

Abstract: In one embodiment, a cache element allocation method is provided. Each cache element on a CPU is assigned a quality rank based on the error rate of the cache element. If an allocated cache element is deemed to be faulty, the quality rank of the faulty allocated cache element is compared with the quality rank of the non-allocated cache elements. If a non-allocated cache element has a lower quality rank than the allocated cache element, the non-allocated cache element is swapped in for the allocated cache element.

Abstract: Routes between cells in an interconnection network are represented with a graph using graph theory; Failed links are identified, and using the graph, alternative routes between cells in the graph are found.

Abstract: A router routes packets among a plurality of nodes based on entries in a route table. Entries in a route table enable mask characterize the enablement of the route table entries. The router receives a packet including an indication to modify the route table enable mask from one of the nodes. The router produces an update mask and determines which logical operation to perform on the update mask and the route table enable mask in response to at least one of the received packet, the update mask, and the route table enable mask. The router generates a new route table enable mask by performing the appropriate logical operation on the update mask and the route table enable mask in response to the determination of which logical operation should be performed and the route table enable mask is replaced with the new route table enable mask.

Abstract: A partitionable computer system and method of operating the same is disclosed. The partitionable computer system has a state machine, a processor, and a device controller. The state machine can be configured to monitor the status of a partition of the partitionable computer system. The information provided by the state machine can be used to provide security within the partitionable computing system.

Abstract: Methods and apparatus in a partitionable computing system. The system can include a computer readable medium comprising instructions configured to move an element of a first partition to a second partition.

Abstract: The present invention flexibly manages the formation of a partition from a plurality of independently executing cells (discrete hardware entities comprising system resources) in preparation for the instantiation of an operating system instance upon the partition. Specifically, the invention manages configuration activities that occur to transition from having individual cells acting independently, and having cells rendezvous, to having cells become interdependent to continue operations as a partition. The invention manages the partitioning forming process such that no single point of failure disrupts the process. Instead, the invention is implemented as a distributed application wherein individual cells independently execute instructions based upon respective copies of the complex profile (a “map” of the complex configuration). Also, the invention adapts to a degree of delay associated with certain cells becoming ready to join the formation or rendezvous process.