K computer RIKEN Advanced Institute for Computational Science

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K computer RIKEN Advanced Institute for Computational Science node specs CPU SPARC64™ VIIIfx 2GHz Performance 128 GF (16 GF x 8 cores) Memory 16 GB Number of racks 864 Number of nodes 82,944 Network Tofu Interconnect (6D Mesh/Torus) Peak performance 10.62 PF Total memory capacity 1.26 PB File system Fujitsu Exabyte File System (FEFS) Storage 30 PB Top500 No.1 for 2 consecutive times since Jun. 2011 Graph500 No.1 in June 2014 & for 6 consecutive times since Jul. 2015 HPCG No.2 for 4 consecutive times since Nov. 2014 No.1 for 3 consecutive times since Nov. 2016 The K computer strikes a balance between performance in calculation, memory, and communication