Abstract: Information is displayed regarding an arrangement of nodes coupled by a communications network. The nodes are associated with corresponding characteristics. Plural groups of the nodes are defined based on the characteristics associated with the nodes. Group icons representing the respective groups of nodes are displayed.

Abstract: Data is received from a plurality of processes of a distributed computing arrangement. The computing arrangement contains a plurality of processing nodes. In a first processing node of the plurality of processing nodes data objects are received from a subset of the plurality of processes. A set of non-responsive processes of the plurality of processes is determined based on arrival times of the data objects relative to a current time. The data objects are aggregated into a set of data objects without waiting for data objects associated with the non-responsive processes. The set of data objects are sent to a second processing node of the plurality of processing nodes.

Abstract: A method of lost-cycle measurement using a cycle counter. In some embodiments, the lost-cycle measurement method comprises: getting a current cycle counter value; finding a number of elapsed cycles between the current cycle counter value and a preceding cycle counter value; determining whether the number of elapsed cycles is indicative of lost cycles; and repeating.

Abstract: Information is displayed regarding an arrangement of nodes coupled by a communications network. The nodes are associated with corresponding characteristics. Plural groups of the nodes are defined based on the characteristics associated with the nodes. Group icons representing the respective groups of nodes are displayed.

Abstract: A computer system includes an aggregator network that couples a plurality of processes on which an application executes to a debugger user interface. Using the debugger user interface, commands are created and sent through the aggregator network to the processes and messages from the processes are routed through the aggregator network to the debugger user interface. Whenever possible, the aggregator network combines the processors' messages into fewer messages and provides a reduced number of messages to the debugger user interface. The aggregated messages generally contain the same information as the messages they aggregate and identify the processes from which the messages originated. The aggregator network examines the processor messages for messages that have identical or similar data payloads and aggregates messages that have identical or similar payloads.

Abstract: A computer system includes an aggregator network that couples a plurality of processes on which an application executes to a debugger user interface. Using the debugger user interface, commands are created and sent through the aggregator network to the processes and messages from the processes are routed through the aggregator network to the debugger user interface. Whenever possible, the aggregator network combines the processors' messages into fewer messages and provides a reduced number of messages to the debugger user interface. The aggregated messages generally contain the same information as the messages they aggregate and identify the processes from which the messages originated. The aggregator network examines the processor messages for messages that have identical or similar data payloads and aggregates messages that have identical or similar payloads.