Patent ID: 9146771
Filing Date: 2015-09-29
Classification: G06F

Abstract:
1. An apparatus for responding to a timeout of a message in a parallel computer, the parallel computer including a plurality of compute nodes operatively coupled for data communications over one or more data communications networks, each compute node including one or more tasks, the apparatus comprising a computer memory operatively coupled to the one or more computer processors, the computer memory having disposed within it computer program instructions that, when executed by the one or more computer processors, cause the apparatus to carry out the steps of: sending, by a first task of a first node, a message to a second task on a second node; in response to a timeout of the message, sending to a partition manager daemon (PMD) located in to the second node, by the first task, a command via a parallel operating environment (POE) located on a third node, the command instructing the second node to perform a timeout motivated operation; receiving from the first task, by the PMD on the second node, the command; and in response to receiving the command, performing, by the PMD, the timeout motivated operation, whereby the timeout motivated operation is used to diagnose the timeout occurrence.