Nodes Type Speed Cache
1 Altix 4700 (512 cores) Montecito 1.6 GHz 9MB
1 Altix 4700 (2048 cores) Montecito 1.6 GHz 9MB
2 Altix 4700 (1024 cores) Montvale 1.6 GHz 9MB
4 Total Compute Nodes (4,608 Total Cores)
System Architecture
* 40 compute node cabinets
* 30 teraflop/s theoretical peak (Original 10,240 system - 63 Tflop/s)
Subsystems
* 2 front-end nodes
Memory
* Type - double data rate synchronous dynamic random access memory (DDR SDRAM)
* Per Processor (core) - 2GB
* Total Memory - 9TB
Interconnects
* NUMALink interconnected single-system image compute nodes
* Internode
o InfiniBand - 4x (Single Data Rate, Double Data Rate)
o 10Gb Ethernet LAN/WAN interconnect
o 1Gb Ethernet LAN/WAN interconnect
Storage
* Online - DataDirect Networks & LSI RAID, 1PB (raw)
o 1 SGI CXFS domains
o Local SGI XFS fileystems
* Archival - Attached to high-end computing SGI CXFS SAN filesystem
Operating Environment
* Operating system - SUSE Linux Enterprise
* Job Scheduler - PBS
* Compilers - Intel Fortran, C, SGI MPT
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