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SGI Altix UV Technical Summary |
[ember.ncsa.illinois.edu]
| COMPONENT |
DESCRIPTION |
Hardware and Networking |
| Architecture |
Distributed Shared Memory |
| Model |
SGI Altix UV |
| Systems |
Front-end system
- SGI Altix UV 10
- 24 cores
- 128 GB memory
Compute systems (4)
- SGI Altix UV 1000
- 384 cores
- 2 TB memory
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| Processor |
- Intel Xeon Nehalem-EX (6-core)
- 2.66 GHz
- Cache:
- 32 KB L1 instruction and 32 KB L1 data cache per core
- 256 KB L2 cache per core
- 18 MB L3 cache shared by all cores
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| Internal Interconnect |
NUMAlink 5
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| Parallel Filesystem |
IBM GPFS (SAN mode) |
| Software |
Operating System |
SGI ProPack 7
Kernel: 2.6.x
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| Compilers |
Intel 11.x, GCC
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| Programming Model |
OpenMP, Message Passing Interface (MPI) |
| Program Analysis Tools |
Totalview |
| Batch System |
Portable Batch System (PBS Pro) with
MOAB Scheduler |
| Policies/User Limits |
Home directory disk quota |
50 GB |
| Interactive scratch quota |
None currently |
| Maximum disk per job |
No limits currently |
The NCSA SGI Altix UV System (ember) is primarily intended to run applications
with moderate levels of parallelism (32-384 cores).
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