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SGI OpenFOAM Cloud Benchmark Part 2, OpenFOAM Study Meeting for beginner@Kanto, 21th Jul. 2012

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SGI OpenFOAM Cloud Benchmark Part 2, OpenFOAM Study Meeting for beginner@Kanto, 21th Jul. 2012

  1. 1. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Masashi Imano SGI OpenFOAM Cloud Benchmark Part 2 1
  2. 2. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Test cluster conditions • Hardware: SGI Altix ICE8200 • CPU: Intel Xeon X5365 3.00GHz 4cores x 2 • Node: 16 nodes • Memory: 16GB/node (No swap memory) • Interconnect: InfiniBand DDR • OS: SUSE LINUX ENTERPRISE SERVER 10.3 • MPI: ✓ SGI MPT (1.2.6) ✓ OpenMPI (ThirdParty package distributed with OpenFOAM) 2
  3. 3. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano • OpenFOAM versions: 2.1.x • MPI (interconnect: InfiniBand): ✓ OpenMPI (Ver. 1.5.3), mpirun options: --mca btl openib,self,sm ✓ SGI MPT (Ver.1.2.6) • Number of InfiniBand rails(MPI_IB_RAILS): 1, 2 • Benchmark problem ✓ Flow: Lid-driven 2D cavity(tutorials), 3D cavity ✓ Re: 100 (laminar) ✓ solver: icoFoam (piso) ✓ Linear solver: p(AMG), U(PBiCG) ✓ Mesh: • 2D (Δt=10-6 s, 100 steps): 1000 2, 2000 2, 4000 2 • 3D (Δt=10-5 s, 50 steps): 100 3, 200 3 x Ux = 1 m/s d = 0.1 m y Calculation conditions 3
  4. 4. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Benchmark results 0 75 150 225 300 1 2 4 8 16 113.3 155.8 204.4 102.3 54.5 52.3 71.2 135.9 101.9 54.8 16.3 29.1 61.2 89.4 53.5 NumberofCases/Day Number of Nodes OpenMPI SGI MPT(1 Rail) SGI MPT(2 Rails) 2D cavity, mesh:10002 (1 Million) 4
  5. 5. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Benchmark results 0 0.2 0.4 0.6 0.8 1 1 2 4 8 16 Parallelefficiency Number of Nodes OpenMPI SGI MPT(1 Rail) SGI MPT(2 Rails) 2D cavity, mesh:10002 (1 Million) 5
  6. 6. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Benchmark results 0 18 35 53 70 1 2 4 8 16 63.0 43.4 35.3 17.7 8.7 33.0 29.0 33.6 17.7 8.8 10.812.4 21.1 16.5 8.5 NumberofCases/Day Number of Nodes OpenMPI SGI MPT(1 Rail) SGI MPT(2 Rails) 2D cavity, mesh:20002 (4 Millions) 6
  7. 7. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Benchmark results 0 0.2 0.4 0.6 0.8 1 1.2 1 2 4 8 16 Parallelefficiency Number of Nodes OpenMPI SGI MPT(1 Rail) SGI MPT(2 Rails) 2D cavity, mesh:20002 (4 Millions) 7
  8. 8. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Benchmark results 0 5 10 15 20 2 4 8 16 20.0 9.8 6.1 3.4 12.9 8.9 6.1 3.5 5.75.15.2 3.3 NumberofCases/Day Number of Nodes OpenMPI SGI MPT(1 Rail) SGI MPT(2 Rails) 2D cavity, mesh:40002 (16 Millions) 8
  9. 9. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Benchmark results 0 0.2 0.4 0.6 0.8 1 2 4 8 16 Parallelefficiency(base:2nodes) Number of Nodes OpenMPI SGI MPT(1 Rail) SGI MPT(2 Rails) 2D cavity, mesh:40002 (16 Millions) 9
  10. 10. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Benchmark results 0 225 450 675 900 1 2 4 8 16 531.1 835.8 675.2 456.2 203.4 264.8 488.7 421.3420.3 203.2 197.1 403.4 434.4 389.5 194.1 NumberofCases/Day Number of Nodes OpenMPI SGI MPT(1 Rail) SGI MPT(2 Rails) 3D cavity, mesh:1003 (1 Million) 10
  11. 11. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Benchmark results 0 0.2 0.4 0.6 0.8 1 1.2 1 2 4 8 16 Parallelefficiency Number of Nodes OpenMPI SGI MPT(1 Rail) SGI MPT(2 Rails) 3D cavity, mesh:1003 (1 Million) 11
  12. 12. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Benchmark results 0 38 75 113 150 1 2 4 8 16 142.9 131.9 72.2 29.9 15.5 89.9 107.4 66.5 29.7 15.5 78.8 94.6 62.4 28.9 15.2 NumberofCases/Day Number of Nodes OpenMPI SGI MPT(1 Rail) SGI MPT(2 Rails) 3D cavity, mesh:2003 (8 Millions) 12
  13. 13. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Benchmark results 0 0.2 0.4 0.6 0.8 1 1.2 1 2 4 8 16 Parallelefficiency Number of Nodes OpenMPI SGI MPT(1 Rail) SGI MPT(2 Rails) 3D cavity, mesh:2003 (8 Millions) 13
  14. 14. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kanto Masashi Imano Any Questions? 14

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