| NCI NF system |
The NCI NF SGI Altix 3700 Bx2 cluster has
- 1928 1.6Ghz Itanium2 processors (1920 dedicated to batch jobs) with:
- L1 cache: 16 kbytes (D) + 16 kbytes (I). Cache line 64bytes
- L2 cache: 256 kbytes. Cache line 128 bytes
- L3 cache: 6 Mbytes. Cache line 128 bytes
- Grouped into 30 "partitions" (single system image nodes) of 64 processors each, where:
- 17 have 128 Gbytes of memory
- 12 have 256 Gbytes of memory
- 1 has 384 Gbytes of memory
(this configuration may change over time).
- Total memory is 5.6Tbytes.
- SGI's
NUMAlink4
interconnect both within and between partitions providing
3.2 Gbytes/s
bidirectional bandwidth per link and < 2us MPI latency.
- Approx 30 Tbytes of global storage attached to five SGI
InfiniteStorage TP9500
controllers. Storage is available to all nodes under SGI's
CXFS filesystem
with an aggregate bandwith of > 2Gbytes/s.
- A usable total of 27+ Tbytes (47+ Tbytes of raw disk) of SGI
TP9100 storage
local to the partitions and connected to each by two dual port HBA's (~800 MBytes/s).
- The operating system is based on SUSE SLES9 linux with an enhanced
Linux 2.6 kernel and SGI
ProPack4.
- Total peak speed of over 11Tflops. Ranked 26th in June
2005 Top500 list.
- An integrated SPECrate performance of
47820.
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