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Supplementary material to “Collaborative Supercomputing for Global Change Science”
29 March 2011
R. Nemani, NASA Ames Research Center, Moffett Field, California
P. Votava, A. Michaelis, F. Melton, and C. Milesi, California State University, Monterey Bay, Seaside
Citation:
Nemani, R., P. Votava, A. Michaelis, F. Melton, and C. Milesi (2011), Collaborative supercomputing for global change science, Eos Trans. AGU, 92(13), 109–110, doi:10.1029/2011EO130001. [Full Article (pdf)]
Figure S1: Overview architecture of the NEX system.
Access to NEX
Access to NEX is a three-step process. The first step involves registration and a request to access the NEX web portal using OpenID. Once the request is approved, members have access to the scientific social networking portal where they can interact with existing members via discussions and "wikis" and build project pages for their research. Users have complete control over what items are in their project, and whether these items are shared with selected project members or with the wider Earth science community. The second step, access to NEX data and computing resources, requires a formal application to the NAS facility (www.nas.nasa.gov). For US researchers this may take up to two weeks. Once approved, members will have access to a "sandbox" with 48 AMD Opteron cores that can be used for prototype development, basic analysis and visualization, work environment creation and collaborative outreach. Step three, necessary only for members that need access to high performance computing and storage for large data sets, requires a brief proposal to NEX that will be reviewed by members of a selection committee. Proposals to NEX should address NASA research and applied science priorities, as defined within the NASA report Responding to the challenge of climate and environmental change (NASA, 2010), and the NASA Research Opportunities in Space and Earth Sciences (ROSES) solicitations.
Initial development of NEX was funded through the American Recovery and Reinvestment Act of 2009.
Acknowledgments: The NEX project was conceived and implemented collaboratively among scientists from NASA's Earth and computational science programs. We would like to acknowledge the support of Dr. Woody Turner, program manager for ecological forecasting at NASA/HQ, Dr. Tsengdar Lee, program manager for scientific computing at NASA/HQ, Mr. Steve Hipskind, Division Chief, Earth Sciences at NASA Ames Research Center, Dr. Rupak Biswas, Division Chief, NASA Advanced Supercomputing (NAS) Division, Mr. William Thigpen, manager at NAS, and other members of the NEX team (Ashok Srivatsava, Elizabeth Foughty, Jennifer Dungan, Weile Wang, Hirofumi Hashimoto, Samuel Hiatt, and Sangram Ganguly).