PROCEDURE AND CONTROL DEVICE FOR CHANGING THE OPERATING SYSTEM IN THE SERVICE NODES OF A SUPERCOMPUTER

摘要

A method controls the change in operating system in selected service nodes of a high- performance computer (CHP). The method includes: a step (i) of defining, for the selected service nodes, a reduced version of a new operating system to be installed, a boot kernel, a so-called “reference” tree node software image suitable for the new operating system and including a definition of an instantiation to be established in the service nodes, and an activation module capable of locally installing the reference image in each service node; a step (ii) wherein the defined reference image, boot kernel, activation module, and reduced operating system version are transferred into the service nodes; and a step (iii) wherein the transferred activation module is used in each service node in order to locally install the transferred reference image.

主权项

1. A control method for controlling a change of an operating system in service nodes each comprising at least one storage drive and a volatile memory and forming part of a supercomputer, the method comprising a step (i) of defining for selected service nodes a reduced version of a new operating system to install, a boot kernel, a tree-type software reference image, configured to the new operating system and comprising a definition of an instantiation to install in the selected service nodes, and an initializing module configured to install the reference image locally in each selected service node, a step (ii) of transferring into the selected service nodes the defined reference image, the boot kernel, the initializing module and the defined reduced version of the new operating system to install, and a step (iii) of executing by the boot kernel transferred to each selected service node the initializing module transferred into the selected service node to locally install the reference image transferred by using the transferred reduced version.