Patent ID: 8799694

Claim:
A computer program product for managing a parallel computing system that comprises a plurality of compute nodes, wherein the computing system comprises a global clock signal that informs each of the compute nodes of the global time for the computing system, the computer program product comprising: a computer-readable storage medium having computer-readable program code embodied therewith, the computer-readable program code configured to: monitor a first parameter associated with at least one of the plurality of compute nodes, wherein the first parameter comprises at least one of: a measured temperature, a measured current, and a measured power consumption, and wherein the plurality of compute nodes in the parallel computing system are coupled for data communications; upon determining that the first parameter reaches or exceeds a first threshold for the first parameter, transmit a global interrupt to at least two of the plurality of compute nodes, wherein the global interrupt includes a predefined time, wherein the at least two of the plurality of compute nodes are configured to reduce power consumption upon the global time matching the predefined time of the global interrupt, and wherein the at least two compute nodes form an operational group that is a subset of the plurality of compute nodes; after transmitting the global interrupt, determine whether second parameters respectively associated with each of the at least two compute nodes in the operational group reach or fall below a second threshold for the second parameters, wherein the second parameters comprise at least one of: a measured temperature, a measured current, and a measured power consumption; and after all the second parameters reach or fall below the second threshold, cancel the global interrupt for the at least two compute nodes in the operational group.