By Jun Qin, Thomas Fahringer
ISBN-10: 3642307140
ISBN-13: 9783642307140
ISBN-10: 3642307159
ISBN-13: 9783642307157
Creating medical workflow functions is a truly demanding activity as a result of complexity of the disbursed computing environments concerned, the advanced keep an eye on and knowledge circulation specifications of clinical functions, and the shortcoming of high-level languages and instruments help. rather, refined services in disbursed computing is usually required to figure out the software program entities to accomplish computations of workflow projects, the pcs on which workflow projects are to be finished, the particular execution order of workflow projects, and the information move among them.
Qin and Fahringer current a unique workflow language known as summary Workflow Description Language (AWDL) and the corresponding standards-based, knowledge-enabled instrument aid, which simplifies the advance of medical workflow functions. AWDL is an XML-based language for describing medical workflow purposes at a excessive point of abstraction. it really is designed in a manner that permits clients to pay attention to specifying such workflow functions with out facing both the complexity of dispensed computing environments or any particular implementation know-how. This examine monograph is prepared into 5 components: review, programming, optimization, synthesis, and end, and is complemented by way of an appendix and an in depth reference list.
The subject matters lined during this booklet might be of curiosity to either computing device technology researchers (e.g. in disbursed programming, grid computing, or large-scale medical functions) and area scientists who have to observe workflow applied sciences of their paintings, in addition to engineers who are looking to improve allotted and high-throughput workflow purposes, languages and tools.
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Additional resources for Scientific Workflows: Programming, Optimization, and Synthesis with ASKALON and AWDL
Example text
The node RAMSAll has two predecessors (Line 16): the node SoilConv and the node LandCoverConv. This is similar for the node REVUAll. Other nodes each has a single predecessor. The corresponding graphical representation of the dag activity is illustrated in Fig. 7. For the reasons of convenience, AWDL provides two special dag activities: sequence and parallel , where no explicit predecessor information needs to be specified. The definition of the sequence activity is illustrated in Fig. 8. The sequence activity imposes a sequential control flow on all of its inner activities being either atomic activities or compound activities.
Within scientific workflow executions. A Performance Prediction service [126,127] estimates execution time of scientific workflows and activities through a training phase and statistical methods using the Performance Analysis service. 6 Summary This chapter presents some prerequisites of this book. It starts with a general description of distributed systems, its architecture, and characteristics. Then it discusses distributed system programming issues and surveys existing programming models for distributed systems.
The Execution Engine service also targets fault tolerant execution of workflows through techniques such as checkpointing, migration, restart, retry, and replication. ) within scientific workflow executions. A Performance Prediction service [126,127] estimates execution time of scientific workflows and activities through a training phase and statistical methods using the Performance Analysis service. 6 Summary This chapter presents some prerequisites of this book. It starts with a general description of distributed systems, its architecture, and characteristics.