CRAY XC40
CRAY XC 40
Theoretical performance 5,800 TFlops
KMA’s 4th supercomputer
-Cray XC40 Cray Inc. in the U.S.
-It consits of Intel Haswell Xeon processors(Intel Haswell 2.6GHz)
-Established in 2015
CRAY XE6
CRAY XE 6
Theoretical performance 758 TFlops
KMA’s 3rd supercomputer
-Cray XE6 from Cray Inc. in the U.S.
-A scalar system using scalable MPP (Massively Parallel Processing) and AMD's multi-core processor-based
-It was operated from 2010 to 2016
CRAY X1E
CRAY X1E
Theoretical performance 18.5 TFlops
KMA’s 2nd supercomputer
-Cray X1E from Cray Inc. in the U.S.
-It was operated from 2005 to 2012
NEC SX-5
CRAY XE 6
Theoretical performance 0.2 TFlops
KMA’s 1st supercomputer
-The vector computer systems SX-5 from NEC Inc. in Japan
-It was operated from Jun. 1999 to Dec. 2005
-One of the systems is being used for exhibitions and the other was discarded
4th
supercomputer 		3rd
supercomputer 		2nd
supercomputer 		1st
supercomputer
System CRAY XC40 CRAY XE6 CRAY X1E SX-5
Installation
year		 2015 2010 2005 2000
Num of
Core		 139,392 90,240 1,024 28
Theoretical
performance		 5,800 TF 758 TF 18.5 TF 224 GF
Memory
capacity		 744 TB 120 TB 4 TB 224 GB
Shared data
storage device		 RAID 6 (15.8 PB) RAID 6 (3.9 PB) RAID 5 (88 TB) RAID 3 (3.78 TB)
Backup storage
capacity		 - 4.5 PB 1 PB 14 TB