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SGI OpenFOAM Cloud Benchmark, OpenFOAM Study Meeting for beginner@Kansai, 7th Jul. 2012

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SGI OpenFOAM Cloud Benchmark, OpenFOAM Study Meeting for beginner@Kansai, 7th Jul. 2012

  1. 1. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kansai Masashi Imano Masashi Imano SGI OpenFOAM Cloud Benchmark 1
  2. 2. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kansai 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 @ Kansai Masashi Imano • OpenFOAM versions: 2.1.x • MPI: ✓ OpenMPI (Ver. 1.5.3, mpirun options: --mca btl openib,self,sm) ✓ SGI MPT (Ver.1.2.6) • Benchmark problem ✓ Flow: Lid-driven 2D cavity (tutorials) ✓ Re: 100 (laminar) ✓ solver: icoFoam (piso) ✓ Linear solver: AMG (p), PBiCG (U) ✓ Mesh: S(500 2,Δt:5x10-5 s), M(1000 2, Δt:10-5 s), L(2000 2, Δt:10-5 s) x Ux = 1 m/s d = 0.1 m y Calculation conditions 3
  4. 4. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kansai Masashi Imano Benchmark results 0 37500 75000 112500 150000 1 2 4 8 127000 140000 80000 15940 10810 21700 60000 37700 Timesteps/Day Number of Nodes OpenMPI SGI MPT Mesh: S (5002= 1/4 Millions) 4
  5. 5. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kansai Masashi Imano Benchmark results 0 2500 5000 7500 10000 1 2 4 8 8470 9240 5520 3260 4620 6240 4940 317 Timesteps/Day Number of Nodes OpenMPI SGI MPT Mesh: M (10002 =1 Million) 80%up 50%up 5
  6. 6. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kansai Masashi Imano Benchmark results 0 750 1500 2250 3000 1 2 4 8 2520 1560 510 280 1780 1430 450 260 Timesteps/Day Number of Nodes OpenMPI SGI MPT Mesh: L (20002 =4 Millions) 40%up 6
  7. 7. Jul. 7th 2012 OpenFOAM Study Meeting for beginner @ Kansai Masashi Imano Any Questions? 7

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