|Title||Supporting Experimental Computer Science|
|Year of Publication||2012|
|Authors||Keahey, K, Desprez F|
|Subsidiary Authors||Desprez, F, Fox G, Jeannot E, Keahey K, Kozuch M, Margery D, Neyron P, Nussbaum L, Perez C, Richard O, Smith W, von Laszewski G, Vöckler J|
|Document Number||ANL MCS Technical Memo 326|
The ability to conduct consistent, controlled, and repeatable large-scale experiments in all areas of computer science related to parallel, large-scale, or distributed computing and networking is critical to the future and development of computer science. Yet conducting such experiments is still too often a challenge for researchers, students, and practitioners because of the unavailability of dedicated resources, inability to create controlled experimental conditions, and variability in software. Availability, repeatability, and open sharing of electronic products are all still difficult to achieve.
To discuss those challenges and share experiences in their solution, the Workshop on Experimental Support for Computer Science  brought together scientists involved in building and operating infrastructures dedicated to supporting computer science experiments to discuss challenges and solutions in this space. The workshop was held in November 2011 and was collocated with the SC11 conference in Seattle, Wash. Our objectives were to share experiences and knowledge related to supporting large-scale experiments conducted on experimental infrastructures, understand user requirements, and discuss methodologies and opportunities created by emerging technologies.
This report ties together the workshop presentations and discussion and the consensus that emerged on the state of the field and directions for moving forward. In Section 2 we set the stage by describing the experimental culture and existing methodology in computer science. In Section 3, we describe the properties of the experimental testbeds whose representatives were participating in the workshop—Grid’5000 in France and Future Grid and Open Cirrus in the United States—as well as the projects that these testbeds support. The layers of experimental infrastructure are described in Section 4, followed in Sections 5 and 6 by profiles of tools and approaches taken by the respective testbeds to provide basic experiment management services and experiment orchestration. In Section 7 we summarize the workshop findings.