Abstract: An aspect of the invention relates to a method for a plurality of clients to access a file in a distributed file system, the file being replicated on at least one other server, the method comprising the steps of: Receiving, by an access management device, a request to access the part of the file sent by a first client from the plurality of clients, Selecting a first server based on at least one parameter, Authorization the first client to access the file stored by the first server Receiving, following authorization, a request to access the same file sent by a second client, the second client being different from the first client, Selecting a second server based on the parameter, the second server being different from the first server, Authorizing the second client to access the file stored by the second server.

Abstract: An aspect of the invention relates to a method for a plurality of clients to access a file in a distributed file system, the file being replicated on at least one other server, the method comprising the steps of: Receiving, by an access management device, a request to access the part of the file sent by a first client from the plurality of clients, Selecting a first server based on at least one parameter, Authorization the first client to access the file stored by the first server Receiving, following authorization, a request to access the same file sent by a second client, the second client being different from the first client, Selecting a second server based on the parameter, the second server being different from the first server, Authorizing the second client to access the file stored by the second server.

Abstract: A method of managing a network of calculation nodes interconnected by a plurality of interconnection devices, includes organizing the calculation nodes into groups of calculation nodes, for each group of calculation nodes, connecting the interconnection devices interconnecting the nodes of the group to a group management node, the management node being dedicated to the group of calculation nodes on each management node execution of an administration function by the implementation of independent management modules, each management module of a management node being able to communicate with the other management modules of the same management node.

Abstract: The invention relates to a method for managing a supercomputer (SC) comprising a set of components (C1, C2, C3 . . . C6) comprising a step of generating notifications (N) by sensors associated with said components; a step of processing said notifications by a hierarchy of modules, said notifications forming incoming events for the modules of lower hierarchical level of said hierarchy, and each module comprising at least one correlation engine for correlating incoming events and generating outgoing events transmitted to the modules of higher level within said hierarchy as incoming events; a step of generating alarms (A), on the basis of the outgoing events generated by the modules of higher hierarchical level within said hierarchy.

Abstract: A method of managing a network of calculation nodes interconnected by a plurality of interconnection devices, includes organizing the calculation nodes into groups of calculation nodes, for each group of calculation nodes, connecting the interconnection devices interconnecting the nodes of the group to a group management node, the management node being dedicated to the group of calculation nodes on each management node execution of an administration function by the implementation of independent management modules, each management module of a management node being able to communicate with the other management modules of the same management node.

Abstract: The invention relates to a method for managing a supercomputer (SC) comprising a set of components (C1, C2, C3 . . . C6) comprising a step of generating notifications (N) by sensors associated with said components; a step of processing said notifications by a hierarchy of modules, said notifications forming incoming events for the modules of lower hierarchical level of said hierarchy, and each module comprising at least one correlation engine for correlating incoming events and generating outgoing events transmitted to the modules of higher level within said hierarchy as incoming events; a step of generating alarms (A), on the basis of the outgoing events generated by the modules of higher hierarchical level within said hierarchy.