Workflow Scheduling for Service Oriented Cloud Computing
cloud, grid, scheduling, services, simulation, workflows
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In Service Oriented Computing Cloud (SOCC), applications are formed by composing a set of services together. In addition, hierarchical service layers are also possible where general purpose services at lower layers are composed to deliver more domain specific services at the higher layer. In general an SOCC is a horizontally scalable computing platform that offers its resources as services in a standardized fashion. Workflow based applications are a suitable target for SOCC where workflow tasks are executed via service calls within the cloud. One or more workflows can be deployed over an SOCC ...
In Service Oriented Computing Cloud (SOCC),
applications are formed by composing a set of
services together. In addition, hierarchical service
layers are also possible where general purpose
services at lower layers are composed to deliver more
domain specific services at the higher layer. In
general an SOCC is a horizontally scalable computing
platform that offers its resources as services in a
standardized fashion. Workflow based applications are
a suitable target for SOCC where workflow tasks are
executed via service calls within the cloud. One or
more workflows can be deployed over an SOCC and their
execution requires scheduling of services to workflow
tasks as the task become ready following their
interdependencies. In this thesis heuristics based
scheduling policies are evaluated for scheduling
workflows over a collection of services offered by
the SOCC. Various execution scenarios and workflow
characteristics are considered to understand the
implication of the heuristic based workflow
scheduling.
applications are formed by composing a set of
services together. In addition, hierarchical service
layers are also possible where general purpose
services at lower layers are composed to deliver more
domain specific services at the higher layer. In
general an SOCC is a horizontally scalable computing
platform that offers its resources as services in a
standardized fashion. Workflow based applications are
a suitable target for SOCC where workflow tasks are
executed via service calls within the cloud. One or
more workflows can be deployed over an SOCC and their
execution requires scheduling of services to workflow
tasks as the task become ready following their
interdependencies. In this thesis heuristics based
scheduling policies are evaluated for scheduling
workflows over a collection of services offered by
the SOCC. Various execution scenarios and workflow
characteristics are considered to understand the
implication of the heuristic based workflow
scheduling.
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