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 La grappe Niagara compte 1500 serveurs Lenovo SD350, chacun avec 40 cœurs Skylake de 2.4GHz.
-Sa performance de pointe théorique est de 4.6 pétaflops (3.02 en test). La grappe se classe au [https://www.top500.org/list/2018/06/?page=1 53e rang des 500 superordinateurs les plus performants].
+Sa performance de pointe est de 3.02 pétaflops (4.6 en théorie). La grappe se classe au [https://www.top500.org/list/2018/06/?page=1 53e rang des 500 superordinateurs les plus performants en juin 2018].
 Each node of the cluster has 188 GiB / 202 GB RAM per node (at least 4 GiB/core for user jobs).  Being designed for large parallel workloads, it has a fast interconnect consisting of EDR InfiniBand in a Dragonfly+ topology with Adaptive Routing.  The compute nodes are accessed through a queueing system that allows jobs with a minimum of 15 minutes and a maximum of 12 or 24 hours and favours large jobs.