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.

Pegasus Workflows

These workflows come from a paper by Bharathi, et. al. [1].

Workflow Type	Example	DAX
Montage The Montage application created by NASA/IPAC stitches together multiple input images to create custom mosaics of the sky.		25 Node DAX 50 Node DAX 100 Node DAX 1000 Node DAX
CyberShake The CyberShake workflow is used by the Southern Calfornia Earthquake Center to characterize earthquake hazards in a region.		30 Node DAX 50 Node DAX 100 Node DAX 1000 Node DAX
Epigenomics The epigenomics workflow created by the USC Epigenome Center and the Pegasus Team is used to automate various operations in genome sequence processing.		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.		30 Node DAX 50 Node DAX 100 Node DAX 1000 Node DAX
SIPHT 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.		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.

Ramakrishnan and Gannon Workflows

These workflows come from a report by Ramakrishnan and Gannon [2].

Workflow Type	Figure in Report	Example	DAX
LEAD Mesoscale Meteorology	Figure 1		leadmm.xml
LEAD ARPS Data Analysis System	Figure 2		leadadas.xml
LEAD Data Mining Workflow	Figure 3		leaddm.xml
Storm Surge SCOOP Workflow	Figure 4		scoop_small.xml scoop_medium.xml scoop_large.xml
Floodplain Mapping	Figure 5		floodplain.xml
Glimmer	Figure 6		glimmer.xml
Gene2Life	Figure 7		gene2life.xml
Motif Network	Figure 8		motif_small.xml motif_medium.xml motif_large.xml
MEME-MAST	Figure 9		mememast.xml
Molecular Sciences	Figure 10		molsci.xml
Avian Flu	Figure 11		avianflu_small.xml avianflu_medium.xml avianflu_large.xml
caDSR	Figure 12		cadsr.xml
Pan-STARRS Load	Figure 13		psload_small.xml psload_medium.xml psload_large.xml
Pan-STARRS Merge	Figure 14		psmerge_small.xml psmerge_medium.xml psmerge_large.xml
McStas	Figure 15		mcstas.xml

The code used to generate the above DAX files was written in Python and can be downloaded here.

[1] S. Bharathi, A. Chervenak, E. Deelman, G. Mehta, M.-H. Su, and K. Vahi, “Characterization of Scientific Workflows”, 3rd Workshop on Workflows in Support of Large Scale Science (WORKS 08), 2008.

[2] L. Ramakrishnan and D. Gannon, "A Survey of Distributed Workflow Characteristics and Resource Requirements", Indiana University Technical Report TR671, 2008.