METHOD AND SYSTEM FOR MANAGING RESOURCES AMONG DIFFERENT CLIENTS FOR AN EXCLUSIVE USE

• US 20130159532A1
• Filed: 12/19/2012
• Published: 06/20/2013
• Est. Priority Date: 12/19/2011
• Status: Active Grant

• Current Assignee: Monument Peak Ventures, LLC (Dominion Harbor Enterprises, LLC)
• Original Assignee: Siemens AG
• Inventors: BOERO, ANDREA, CORSO, DAVIDE
• Granted Patent: US 9,525,644 B2
• Time in Patent Office: Days
• US Class Current: 709/226
• CPC Class Codes: G06F 2209/5011 Pool
• CPC Class Codes: G06F 9/5027 the resource being a machine, e.g. CPUs, Servers, Terminals
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/78 Architectures of resource allocation
• CPC Class Codes: H04L 47/783 Distributed allocation of resources, e.g. bandwidth brokers
• CPC Class Codes: H04L 47/821 Prioritising resource allocation or reservation requests
• CPC Class Codes: H04L 47/822 Collecting or measuring resource availability data
• CPC Class Codes: H04L 47/827 Aggregation of resource allocation or reservation requests

Abstract

A method and a system share resources of a server among different clients. The system has a server which contains a maximum number m of resources among which a predetermined number w of the resources are initializable for being kept ready for use by the clients and forming a pool. A communication system communicates with the clients. A managing device manages the resources. The managing device contains at least a processor and a memory. The managing device is able to change the status of the resource of the pool in dependence on an assignment of the resource to the client or a release of the resource at a time T4, to add a new resource to the pool, and to terminate the resource of the pool.

Claims

1. A method for sharing resources of a server among different clients, the server containing a maximum number m of resources among which a predetermined number w of the resources are initialized and kept ready for use for the clients and are contained in a pool, which method comprises the steps of:

releasing at a time T4 a resource of the server, wherein a status of the resource released being changed from “

in use”

to “

available”

;

determining a size of the pool at the time T4; and

if the pool contains p resources at the time T4, wherein m≧

p>

w, then terminating p−

w resources among available resources of the pool if and only if a number p_u of the “

in-use”

resources at the time T4 is inferior to the predetermined number w;

or

otherwise, maintaining the resources of the pool initialized independently of time.

2. The method according to claim 1, which further comprises performing an allocation of the resource to a client by the further steps of:

a) receiving by the server of a client request for using one of the resources;

b) determining a number of available resources for the client in the pool; and

if at least one of the resources is available in the pool, then allocating the one resource to the client and changing a status of the resource allocated from “

available”

to “

in use”

, otherwise;

if each of the resources of the pool is “

in use”

, then determining if the maximum number m of the resources is used;

if the maximum number m of the resources of the server is not used, then initializing a new resource and adding the new resource to the pool;

if the maximum number m of the resources of the server is used and if a timeout is not reached, then returning to step b; and

if the maximum number m of the resources of the server is used and if the timeout is reached, then returning to the client request an error.

3. The method according to claim 1, which further comprises prioritizing an allocation of the resource to the client or a request in dependence on a rank of the client or the request.

4. The method according to claim 4, which further comprises setting at least one condition for allocation of the resource to the client.

5. A system for sharing resources among different clients, the system comprising:

a server having a maximum number m of resources among which a predetermined number w of said resources are initializable for being kept ready for use by the clients in a pool;

a communication system for communicating with the clients;

a managing device for managing said resources, said managing device having at least a processor and a memory, said managing device being able to;

change a status of a resource of said pool in dependence on an assignment of said resource to a client or a release of said resource at a time T4;

to add a new resource to the pool;

to terminate said resource from the pool;

said memory containing instructions to;

determine a number p of said resources contained in said pool at the time T4, and to determine among said p resources, a number p_u of said resources that are “

in use”

at the time T4;

terminate p−

w resources among the p−

p_u available resources of said pool if and only if at said time T4, m≧

p>

w and p_u<

w; and

maintain said resources of said pool initialized independently of the time if at said time T4, p≦

w or p_u>

w.

6. The system according to claim 5, wherein said server has a databank with a prioritizing list of at least one of the clients or the requests.

7. The system according to claim 5, wherein said server is able to timestamp a reception of a request.