System Overview
System Overview
- Cray XC30 (Cascade) supercomputer
- Cray Linux Environment CLE 5.2 UP01 (based on SLES 11.3)
- 11,584 physical compute cores (23,168 logical cores with Hyper-Threading enabled)
- 22.6 TB of compute memory
- Peak performance of 240.9 TF
- 1.3PB parallel Lustre file system for scratch
- Interconnect has a Dragonfly network topology with Cray Aries technology
- 4 cabinets
- 724 compute nodes
- 3 login nodes with 10GigE uplinks
- Long term archival/storage available through HPSS
Compute Node Details
- Two 2.6 GHz 64bit Intel 8-core XEON E5-2600 (Sandy Bridge) Series processors
- 16 physical cores (32 logical cores if using Hyper-Threading)
- 32 GB of memory
- Connection via Cray Aries router with a bandwidth of 8GB/sec
- Diskless nodes
- Parallel Lustre scratch file system
- Shared libraries access available via DVS service
Login Node Details
- Four 2.6 GHz 64bit Intel 8-core XEON E5-2600 (Sandy Bridge) Series processors
- 256 GB of memory
- 10GigE connection to the Internet
- Total of 3 login nodes
- Two for OTP only access
- One for GSI and GridFTP access
Lustre File System Details
- 1.3PB of usable space
- Lustre Parallel file system
- Maximum aggregated bandwidth of 30.0 GB/sec with Lustre (10GB/sec per SSU)
- FDR Infiniband connection
- Default stripping values:
- Stripe count of 2
- Stripe size of 1MB
- Maximum stripe count of 90
- 900 2TB SATA disk drives (300 per SSU)
- 8 LNET nodes
- 3 Scalable Storage Units (SSU)
- 4 OSS's per SSU
- 7-8 OST's per OSS
- 90 OST's Total
Useful Links