Development of mpi_EPIC model for global agroecosystem modeling

S. Kang, D. Wang, J.A. Nichols, J. Schuchart, K.L. Kline, Y. Wei, D.M. Ricciuto, S.D. Wullschleger, W.M. Post, R.C. Izaurralde
2015 Computers and Electronics in Agriculture  
14 Agroecosystem models that can incorporate management practices and quantify environmental 15 effects are necessary to assess sustainability-associated food and bioenergy production across 16 spatial scales. However, most developed agroecosystem models are at a plot scale. Tremendous 17 computational need on simulations and datasets is necessary when large scales of high-resolution 18 spatial simulations are conducted. We used the message passing interface (MPI) parallel 19 technique and
more » ... oped a master-slave scheme for an agroecosystem model, EPIC on global 20 food and bioenergy studies. Simulation performance was further enhanced by applying the 21 Vampir framework. On a Linux-based supercomputer, Cray XT7 Titan, we used 2048 cores and 22 successfully shortened the running time from days to 30 minutes for a global 30 years of 23
doi:10.1016/j.compag.2014.12.004 fatcat:mfcugfmmwzfe7ds3cyqqarozku