Page 225 - Cloud computing: From paradigm to operation

Framework and requirements for cloud computing 1

Table II.4 – Using an interconnect network for high-performance service – use case
Title Using interconnect network for high-performance service

Description When a cloud service user requests a high performance computing service (e.g., parallel
processing, Big data processing, etc.), a cloud service operations manager is responsible for
setting up an interconnection network among processing units, because multiple computing
resources are required to perform such a service.
Ethernet is a widely used protocol for the interconnection network but the cloud service
operations manager may provide other protocols. Therefore, depending on the protocols,
the performance of the interconnect network is determined and the cloud service operations
manager can select and provide the appropriate interconnect network to the cloud service
user.
For utilizing this interconnect network system, a cloud service user can employ socket based
applications in the case of using Ethernet protocol. For other networks, a cloud service user is
provided with applications per application program interfaces (API) from a cloud service
operations manager. This is due to the fact that, a cloud operations manager also has a
responsibility to provide a device driver and API for utilizing the propriety network.
Occasionally, a cloud service user may request multiple physical machines for such a service.
In this case, a cloud operations manager has a responsibility to support multiple shared
resources through the network. Since the physical machines are independent of network
devices, this network would be arranged as cabling in an interconnect network.
When a cloud service operations manager makes this cabled network, it is constructed to
support various topologies (e.g., ring, mesh, tree) to meet the different performance levels of
the service requested from a cloud service user.
Roles/sub-roles CSC: Cloud service user and CSP: Cloud service operations manager

Figure

Pre-conditions CSC: Cloud service user wants to use a high performance computing application.
(optional)
Post-conditions Physical machines can run a high performance computing application through a system
(optional) interconnect network and cabled network.

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