BlueGene/L - eServer Blue Gene Solution
                    IBM
JUGENE - Blue Gene/P Solution
                    IBM
SGI Altix ICE 8200, Xeon quad core 3.0 GHz
                    HPE
EKA - Cluster Platform 3000 BL460c, Xeon 53xx 3GHz, Infiniband
                    HPE
Cluster Platform 3000 BL460c, Xeon 53xx 2.66GHz, Infiniband
                    HPE
Red Storm - Sandia/ Cray Red Storm, Opteron 2.4 GHz dual core
                    Cray/HPE
Jaguar - Cray XT4/XT3
                    Cray/HPE
BGW - eServer Blue Gene Solution
                    IBM
Franklin - Cray XT4, 2.6 GHz
                    Cray/HPE
New York Blue - eServer Blue Gene Solution
                    IBM
ASC Purple - eServer pSeries p5 575 1.9 GHz
                    IBM
eServer Blue Gene Solution
                    IBM
MareNostrum - BladeCenter JS21 Cluster, PPC 970, 2.3 GHz, Myrinet
                    IBM
Abe - PowerEdge 1955, 2.33 GHz, Infiniband, Windows Server 2008/Red Hat Enterprise Linux 4
                    Dell EMC
HLRB-II - Altix 4700 1.6 GHz
                    HPE
TSUBAME Grid Cluster - Sun Fire x4600 Cluster, Opteron 2.4/2.6 GHz and ClearSpeed Accelerator, Infiniband
                    NEC/Sun
HECToR - Cray XT4, 2.8 GHz
                    Cray/HPE
Thunderbird - PowerEdge 1850, 3.6 GHz, Infiniband
                    Dell EMC
Tera-10 - NovaScale 5160, Itanium2 1.6 GHz, Quadrics
                    Atos
Columbia - SGI Altix 1.5 GHz, Voltaire Infiniband
                    HPE
Hawk - Altix 4700 1.6 GHz
                    HPE
Lonestar - PowerEdge 1955, 2.66 GHz, Infiniband
                    Dell EMC
Cluster Platform 3000 DL140 Cluster, Xeon 2.33GHz Infiniband
                    HPE
Blue Gene/P Solution
                    IBM
Jaws - PowerEdge 1955, 3.0 GHz, Infiniband
                    Dell EMC
CEA-CCRT-Platine - Novascale 3045, Itanium2 1.6 GHz, Infiniband
                    Atos
Michael J. Muuss Cluster (MJM) - Evolocity II (LS Supersystem) Xeon 51xx 3.0 GHz IB
                    Linux Networx
JUBL - eServer Blue Gene Solution
                    IBM
Atlas - Appro Xtreme Server - Quad Opteron Dual Core 2.4GHz Infiniband
                    Cray/HPE
Earth-Simulator
                    NEC
Sapphire - Cray XT3, 2.6 GHz dual Core
                    Cray/HPE
Queen Bee - PowerEdge 1950, 2.33 GHz, Infiniband
                    Dell EMC
Cluster Platform 3000 BL460c, Xeon 53xx 3GHz, Infiniband
                    HPE
SGI Altix ICE 8200, 2.66 GHz
                    HPE
Cray XT3, 2.6 GHz dual Core
                    Cray/HPE
Topsail - PowerEdge 1955, 2.33 GHz, Cisco/Topspin Infiniband
                    Dell EMC
Stella - eServer Blue Gene Solution
                    IBM
Minos - Appro Xtreme Server - Quad Opteron Dual Core 2.4GHz Infiniband
                    Cray/HPE
CITerra - PowerEdge 1950, 2.33 GHz, Myrinet
                    Dell EMC
Blue Gene/P Solution
                    IBM
Genius - Blue Gene/P Solution
                    IBM
Big Red - BladeCenter JS21 Cluster, PPC 970, 2.5 GHz, Myrinet
                    IBM
Firefly - PowerEdge SC1435 Dual core Opteron 2.8 GHz, Infiniband
                    Dell EMC
Cluster Platform 6000 rx1620, Itanium2 1.6 GHz, Quadrics
                    HPE
eServer pSeries p5 575 1.9 GHz
                    IBM
eServer pSeries p5 575 1.9 GHz
                    IBM
Thunder - Intel Itanium2 Tiger4  1.4GHz - Quadrics
                    California Digital Corporation
BladeCenter HS21 Cluster, Xeon dual core 3.0 GHz, Infiniband
                    IBM
xSeries x3550 Cluster Xeon, 3 GHz, Infiniband
                    IBM
SGI Altix ICE 8200, 3.0 GHz
                    HPE
BladeCenter JS21 Cluster, PPC 970, 2.3 GHz, Myrinet
                    IBM
Blue Protein - eServer Blue Gene Solution
                    IBM
eServer Blue Gene Solution
                    IBM
Frontier - eServer Blue Gene Solution
                    IBM
KEK/BG MOMO - eServer Blue Gene Solution
                    IBM
KEK/BG Sakura - eServer Blue Gene Solution
                    IBM
eServer Blue Gene Solution
                    IBM
eServer Blue Gene Solution
                    IBM
BladeCenter HS21 Cluster, Xeon dual core, 2.33 GHz, GigEthernet
                    IBM
Darwin - PowerEdge 1950, 3.0 GHz, Infinipath
                    ClusterVision/Dell
Rhea - Appro Xtreme Server - Quad Opteron Dual Core 2.4GHz Infiniband
                    Cray/HPE
Calhoun - SGI Altix XE 1300 Cluster Solutions, 2.66GHZ, Infiniband
                    HPE
HPC - Opteron, Xeon Cluster, Myrinet
                    Oracle
Ice Storm - SGI Altix ICE 8200, 2.66 GHz
                    HPE
BigBen - Cray XT3, 2.6 GHz dual Core
                    Cray/HPE
T3 - PowerEdge 1955, 2.66 GHz, Infiniband
                    Dell EMC
eServer pSeries p5 575 1.9 GHz
                    IBM
eServer pSeries p5 575 1.9 GHz
                    IBM
MACH5 - Apple XServe, 2.0 GHz, Myrinet
                    Self-made
SR11000-J2
                    Hitachi
BCX - eServer 326 Cluster, Opteron Dual Core 2.6 GHz, Infiniband
                    IBM
Cray X1E (4GB)
                    Cray/HPE
Bio-X2 - PowerEdge 1950, 2.33 GHz, Infiniband
                    Dell EMC
eServer pSeries p5 575 1.9 GHz
                    IBM
eServer pSeries p5 575 1.9 GHz
                    IBM
xSeries x3455 Cluster Opteron, 2.6 GHz, Infiniband
                    IBM
Humvee - Evolocity II (LS Supersystem)
                    Linux Networx
Cluster Platform 3000 BL460c, Xeon 53xx 2.33GHz, GigEthernet
                    HPE
PRIMERGY RX200S3, Xeon Dual Core 3.0 GHz, Infiniband
                    Fujitsu
Cray X1E (2GB)
                    Cray/HPE
Altix 4700 1.6 GHz
                    HPE
SGI Altix ICE 8200, 3.0 GHz
                    HPE
Stallo - Cluster Platform 3000 BL460c, Xeon 53xx 2.66GHz, GigEthernet
                    HPE
Cluster Platform 3000 BL460c, Xeon 53xx 2.66GHz, GigEthernet
                    HPE
Cray XT3, 2.6 GHz dual Core
                    Cray/HPE
Cluster Platform 3000 BL460c, Xeon 51xx 2.66GHz, GigEthernet
                    HPE
Roadrunner 1 - xSeries x3755 Cluster Opteron dual core 2.2 GHz, Infiniband
                    IBM
Roadrunner 3 - xSeries x3755 Cluster Opteron dual core 2.2 GHz, Infiniband
                    IBM
Roadrunner 2 - xSeries x3755 Cluster Opteron dual core 2.2 GHz, Infiniband
                    IBM
BladeCenter JS20 Cluster, PPC 970, 2.2 GHz, Myrinet
                    IBM
Cluster Platform 3000 BL460c, Xeon 53xx 2.33GHz, GigEthernet
                    HPE
ASCI Q - AlphaServer SC45, 1.25 GHz
                    HPE
Cluster Platform 3000 BL460c, Xeon 51xx 2.66GHz, GigEthernet
                    HPE
Intimidata - eServer Blue Gene Solution
                    IBM
Cluster Platform 3000 BL460c, Xeon 51xx 3.0GHz, GigEthernet
                    HPE
LQCD AMD 7N Cluster - KOI Quad Core Opteron 1.9GHz, Infiniband
                    Koi Computers
Cluster Platform 3000 BL460c, Xeon 53xx 2.33GHz, GigEthernet
                    HPE
Cluster Platform 3000 BL460c, Xeon 53xx 2.33GHz, GigEthernet
                    HPE
Cluster Platform 3000 BL460c, Xeon 53xx 2.66GHz, GigEthernet
                    HPE
Cluster Platform 3000 BL460c, Xeon 53xx 2.33GHz, GigEthernet
                    HPE