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Friday, September 27 • 11:00am - 11:30am
Efficient Runtime Capture of Multiworkflow Data Using Provenance

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Renan Souza (COPPE/UFRJ & IBM Research), Leonardo Azevedo (IBM Research), Raphael Thiago (IBM Research), Elton Soares (IBM Research), Marcelo Nery (IBM Research), Marco A. S. Netto (IBM Research), Emilio Vital (IBM Research), Renato Cerqueira (IBM Research), Patrick Valduriez (Inria & U. Montpellier), and Marta Mattoso (COPPE/UFRJ)

Computational Science and Engineering (CSE) projects are typically developed by multidisciplinary teams. Despite being part of the same project, each team manages its own workflows, using specific execution environments and data processing tools. Analyzing the data processed by all workflows globally is a core task in a CSE project. However, this analysis is hard because the data generated by these workflows are not integrated. In addition, since these workflows may take a long time to execute, data analysis needs to be done at runtime to reduce cost and time of the CSE project. A typical solution in scientific data analysis is to capture and relate the data in a provenance database while the workflows run, thus allowing for data analysis at runtime. However, the main problem is that such data capture competes with the running workflows, adding significant overhead to their execution. To mitigate this problem, we introduce in this paper a system called ProvLake, which adopts design principles for providing efficient distributed data capture from the workflows. While capturing the data, ProvLake logically integrates and ingests them into a provenance database ready for analyses at runtime. We validated ProvLake by implementation of a real use case in the O&G industry of four workflows that process 5 TB datasets for a deep learning classifier. Compared with Komadu, the closest solution that meets our goals, our approach enables runtime multiworkflow data analysis with much smaller overhead, such as 0.1%.


Renan Souza


Friday September 27, 2019 11:00am - 11:30am
Macaw Room