A couple papers of interest were published recently: "Comparative benchmarking of cloud computing vendors with High Performance Linpack" https://arxiv.org/abs/1702.02968v1 "Cloud Computing for Complex Performance Codes" http://prod.sandia.gov/techlib/access-control.cgi/2017/171208.pdf Tim -- Tim Randles Los Alamos National Lab trandles at lanl.gov 505-667-0680