Compute Nodes
Nodes Configuration
Anselm is cluster of x86-64 Intel based nodes built on Bull Extreme Computing bullx technology. The cluster contains four types of compute nodes.
Compute Nodes Without Accelerator
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180 nodes
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2880 cores in total
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two Intel Sandy Bridge E5-2665, 8-core, 2.4GHz processors per node
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64 GB of physical memory per node
- one 500GB SATA 2,5” 7,2 krpm HDD per node
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bullx B510 blade servers
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cn[1-180]
Compute Nodes With GPU Accelerator
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23 nodes
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368 cores in total
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two Intel Sandy Bridge E5-2470, 8-core, 2.3GHz processors per node
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96 GB of physical memory per node
- one 500GB SATA 2,5” 7,2 krpm HDD per node
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GPU accelerator 1x NVIDIA Tesla Kepler K20 per node
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bullx B515 blade servers
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cn[181-203]
Compute Nodes With MIC Accelerator
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4 nodes
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64 cores in total
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two Intel Sandy Bridge E5-2470, 8-core, 2.3GHz processors per node
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96 GB of physical memory per node
- one 500GB SATA 2,5” 7,2 krpm HDD per node
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MIC accelerator 1x Intel Phi 5110P per node
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bullx B515 blade servers
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cn[204-207]
Fat Compute Nodes
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2 nodes
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32 cores in total
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2 Intel Sandy Bridge E5-2665, 8-core, 2.4GHz processors per node
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512 GB of physical memory per node
- two 300GB SAS 3,5”15krpm HDD (RAID1) per node
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two 100GB SLC SSD per node
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bullx R423-E3 servers
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cn[208-209]
Figure Anselm bullx B510 servers
Compute Nodes Summary
Node type | Count | Range | Memory | Cores | Access |
---|---|---|---|---|---|
Nodes without accelerator | 180 | cn[1-180] | 64GB | 16 @ 2.4Ghz | qexp, qprod, qlong, qfree |
Nodes with GPU accelerator | 23 | cn[181-203] | 96GB | 16 @ 2.3Ghz | qgpu, qprod |
Nodes with MIC accelerator | 4 | cn[204-207] | 96GB | 16 @ 2.3GHz | qmic, qprod |
Fat compute nodes | 2 | cn[208-209] | 512GB | 16 @ 2.4GHz | qfat, qprod |
Processor Architecture
Anselm is equipped with Intel Sandy Bridge processors Intel Xeon E5-2665 (nodes without accelerator and fat nodes) and Intel Xeon E5-2470 (nodes with accelerator). Processors support Advanced Vector Extensions (AVX) 256-bit instruction set.
Intel Sandy Bridge E5-2665 Processor
- eight-core
- speed: 2.4 GHz, up to 3.1 GHz using Turbo Boost Technology
- peak performance: 19.2 Gflop/s per core
- caches:
- L2: 256 KB per core
- L3: 20 MB per processor
- memory bandwidth at the level of the processor: 51.2 GB/s
Intel Sandy Bridge E5-2470 Processor
- eight-core
- speed: 2.3 GHz, up to 3.1 GHz using Turbo Boost Technology
- peak performance: 18.4 Gflop/s per core
- caches:
- L2: 256 KB per core
- L3: 20 MB per processor
- memory bandwidth at the level of the processor: 38.4 GB/s
Nodes equipped with Intel Xeon E5-2665 CPU have set PBS resource attribute cpu_freq = 24, nodes equipped with Intel Xeon E5-2470 CPU have set PBS resource attribute cpu_freq = 23.
$ qsub -A OPEN-0-0 -q qprod -l select=4:ncpus=16:cpu_freq=24 -I
$ qsub -A OPEN-0-0 -q qprod -l select=4:ncpus=16 -l cpu_turbo_boost=0 -I
Memory Architecture
Compute Node Without Accelerator
- 2 sockets
- Memory Controllers are integrated into processors.
- 8 DDR3 DIMMS per node
- 4 DDR3 DIMMS per CPU
- 1 DDR3 DIMMS per channel
- Data rate support: up to 1600MT/s
- Populated memory: 8x 8GB DDR3 DIMM 1600Mhz
Compute Node With GPU or MIC Accelerator
- 2 sockets
- Memory Controllers are integrated into processors.
- 6 DDR3 DIMMS per node
- 3 DDR3 DIMMS per CPU
- 1 DDR3 DIMMS per channel
- Data rate support: up to 1600MT/s
- Populated memory: 6x 16GB DDR3 DIMM 1600Mhz
Fat Compute Node
- 2 sockets
- Memory Controllers are integrated into processors.
- 16 DDR3 DIMMS per node
- 8 DDR3 DIMMS per CPU
- 2 DDR3 DIMMS per channel
- Data rate support: up to 1600MT/s
- Populated memory: 16x 32GB DDR3 DIMM 1600Mhz