| CPU |
64-bit AMD Opteron series 2000 processors; up to 192 per cabinet |
| Cache (Quad Core) |
64k L1 instruction cache64k L1 data cache, 512KB L2 cache per processor core, 2MB shared L3 cache |
| FLOPS |
7 Teraflops per cabinet |
| Main Memory |
4-32 GB Registered ECC DDR2 SDRAM per compute node |
| Memory Bandwidth |
21.2 to 25.6 GB/sec per compute node |
| Interconnect |
1 Cray SeaStar2 + routing and communication ASIC per compute node |
|
6 switch ports per Cray SeaStar2+ chip, 9.6 GB/s each |
|
(57.6 GB/s switching capacity per Cray SeaStar2+ Chip) |
|
3-dimensional Torus interconnect |
| External I/O Interface |
Gigabit Ethernet |
|
10 Gigabit Ethernet |
|
Fibre Channel (FC) |
|
InfiniBand (future) |
| Disk Storage |
Full line of FC-attached disk arrays with support for FC and SATA disk drives |
| File System |
Lustre file system |
| System Administration |
Cray System Management Workstation (SMW) |
|
Graphical and command line system administration |
|
Single-system view for system administration |
|
PBS Pro job management system |
|
System software rollback capability |
| Reliability Features (Hardware) |
Cray RAS and Management Subsystem (CRMS) with independent 100 Mb/s management fabric between all system blades and cabinet-level controllers |
|
More than 50 measurement points monitored per Cray XT5 system blade |
|
Full Chipkill and ECC memory protection from memory to system registers |
|
Full ECC protection in the Cray SeaStar2+ chip |
|
Redundant power supplies |
|
Redundant voltage regulator modules (VRMs) |
|
Redundant paths to all system RAID |
|
Variable-speed axial turbofan with integrated pressure and temperature sensors |
| Reliability Features (Software) |
Simple, lightweight, Linux-based software design |
|
CRMS system monitors operation of all operating system kernels |
|
Lustre file system object storage target failover; Lustre metadata server failover |
|
Software failover for critical system services including system database, system logger, and batch subsystems. |
| Power |
32 - 42.7 kW (32l7 - 43.6 kVA) per cabinet, depending on configuration. Circuit requirements: 80 AMP at 400/480 VAC (3 phase & ground) |
| Cooling Requirements |
Air cooled, air flow: 3000 cfm (1.41 m3/s); intake: bottom; exhaust: top |
| Dimensions (Cabinet) |
H 80.50 in. (2045 mm) x W 22.50 in. (572 mm) x D 56.75 in. (1441 mm) |
| Weight (Max) |
1529 lbs per cabinet (694 kg) |
| Acoustical Noise Level |
75 dba at 3.3 ft (1.0 m) |
| Regulatory Compliance |
UL 60950-1, CAN/CSA - C 22.2 No. 60950-1, CB Scheme Investigation to IEC/EN 60950-1, RoHS, WEEE |
| Safety |
FCC Class A, DOC Class A, VCCI Class, CISPR 22, EN 50022 Class A, AS/NZS 3548, EN 50082-1, EN 61000-3-2, EN 61000-3-3, Statskontoret 26.2 Category 1 |