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| | === Phase 2 === | | === Phase 2 === |
| | [[File:hector-2a-xt4.jpg|thumb|right|Phase 2a]][[File:hector-2a-cabinets.jpg|right|thumb|Phase 2a]] | | [[File:hector-2a-xt4.jpg|thumb|right|Phase 2a]][[File:hector-2a-cabinets.jpg|right|thumb|Phase 2a]] |
| − | ==== Phase 2a ====
| + | {{empty section}} |
| − | HECToR phase two is a Cray XT4 system with a vector X2 system. The system comprises 1416 compute blades across 60 cabinets. Each blade incorporates four compute nodes. Within a compute node are quad-core AMD Opteron CPUs operating at 2.3 GHz along with 8 GB of memory for a total system memory of 44.25 TiB.
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| − | {| class="wikitable" | |
| − | |-
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| − | ! Type !! Count
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| − | |-
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| − | | Nodes || 1,416
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| − | |-
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| − | | CPUs || 5,664
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| − | | Cores || 22,656
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| − | |}
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| − | With a total of 22,656 cores, the system has a peak compute performance of 208.4 teraFLOPS. In addition to the computational nodes, there are 24 additional blades with two dual-core processors per node which is used for various services such as login, control, and network management.
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| − | The system relies on Cray SeaStar2 interconnect. There's one SeaStar2 chip for every four nodes which comes with 6 network links. The network implements a 3D-torus. The MPI point-to-point bandwidth is was 2.17 GB/s, with a minimum bi-section bandwidth of 4.1 TB/s, and with a node-to-node latency of around 6 μs.
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| − | This system had an Cray X2 vector compute cluster with 28 nodes. There were 4 vector processors per node for a total of 112 processors. With each vector processor capable of 25.6 gigaFLOPS, the new addition adds 2.87 teraFLOPS of compute to the existing system. The MPI point-to-point bandwidth is was 16 GB/s, with a minimum bi-section bandwidth of 254 GB/s, and with a node-to-node latency of around 4.6 μs.
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| − | Storage systems
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| − | | |
| − | * high-performance RAID: 934 TiB
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| − | * NAS (Network Attached Storage): 70 TiB
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| − | * MAID (Massive Array of Idle Disks): 112 TiB
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| − | ==== Phase 2b ====
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| − | Phase 2b upgraded the system to a Cray XE6 comprising 464 blades across 20 cabinets. There are four nodes per blade. Each node is a dual-socket 12-core AMD Opteron Magny Cours CPUs operating at 2.1 GHz.
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| − | {| class="wikitable"
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| − | ! Type !! Count
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| − | | Nodes || 464
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| − | |-
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| − | | CPUs || 3,712
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| − | |-
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| − | | Cores || 44,544
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| − | |}
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| − | There are 16 GiB of memory per socket for a total system memory of 58 TiB. With 44,544 cores, the system had a peak compute performance of 374.2 teraFLOPS. In addition to the computational nodes, there are 16 additional blades with two dual-core processors per node which is used for various services such as login, control, and network management.
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| − | The system relies on Cray Gemini interconnect. There's one Gemini chip for every two nodes which comes with 10 network links. The network implements a 3D-torus. The MPI point-to-point bandwidth is >= 5 GB/s with a node-to-node latency of around 1-1.5μs.
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| − | Storage:
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| − | | |
| − | * high-performance RAID disks: 596 TiB
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| − | * NAS (Network Attached Storage): 70 TiB
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| − | * MAID (Massive Array of Idle Disks): 168 TiB
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| | | | |
| | === Phase 3 === | | === Phase 3 === |
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