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To facilitate evaluation of workflow algorithms and systems on a range of workflow sizes, we have developed a workflow generator. This generator uses the information gathered from actual executions of scientific workflows on the Grid as well as our understanding of the processes behind these workflows to generate synthetic workflows resembling those used by real world scientific applications.

Additional details about this work can be found in our publication at WORKS08

Available Workflow Types

Workflow Type



The Montage application created
by NASA/IPAC stitches together multiple
input images to create
custom mosaics of the sky.

pageMontage Characterization

25 Node DAX
50 Node DAX
100 Node DAX
1000 Node DAX

The CyberShake workflow is used
by the Southern Calfornia Earthquake
Center to characterize
earthquake hazards in a region.

pageCyberShake Characterization

30 Node DAX
50 Node DAX
100 Node DAX
1000 Node DAX

The epigenomics workflow created
by the USC Epigenome Center
and the Pegasus Team is used to
automate various operations
in genome sequence processing.

pageEpigenomics Characterization

24 Node DAX
46 Node DAX
100 Node DAX
997 Node DAX

LIGO Inspiral Analysis
LIGO's Inspiral Analysis workflow
is used to generate and
analyze gravitational waveforms
from data collected during the
coalescing of compact binary systems.

pageLIGO Inspiral Characterization

30 Node DAX
50 Node DAX
100 Node DAX
1000 Node DAX

The SIPHT workflow, from the
bioinformatics project at Harvard,
is used to automate the search for
untranslated RNAs (sRNAs) for bacterial
replicons in the NCBI database.

pageSIPHT Characterization

30 Node DAX
60 Node DAX
100 Node DAX
1000 Node DAX

A large collection of DAXes similar to the ones listed above is available here. Note that is is about 290MB.