One of the pathways by which the scientific community confirms the validity of a new
scientific discovery is by repeating the research that produced it. When a scientific effort fails …

A lot of scientific data is not obtained from measurements but rather derived from other data
by the application of computational procedures. We hypothesize that explicit representation …

In this paper we describe the Pegasus system that can map complex workflows onto the
Grid. Pegasus takes an abstract description of a workflow and finds the appropriate data and …

It has been reported [25] that life holds but two certainties, death and taxes. And indeed, it
does appear that any society-and in the context of this article, any large-scale distributed …

We present Swift, a system that combines a novel scripting language called SwiftScript with
a powerful runtime system based on CoG Karajan, Falkon, and Globus to allow for the …

Grid applications require allocating a large number of heterogeneous tasks to distributed
resources. A good allocation is critical for efficient execution. However, many existing grid …

Workflows have been used to represent a variety of applications involving high processing
and storage demands. As a solution to supply this necessity, the cloud computing paradigm …

In this paper we address the problem of automatically generating job workflows for the Grid.
These workflows describe the execution of a complex application built from individual …

Among the numerous DAG scheduling heuristics suitable for heterogeneous systems, the
Heterogeneous Earliest Finish Time (HEFT) heuristic is known to give good results in short …

In this paper, we assume an environment with multiple, heterogeneous resources, which
provide services of different capabilities and of a different cost. Users want to make use of …