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ZMT zurich med tech

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  3. Simulations & Solvers
  4. How to use multiple GPUs for a simulation?

How to use multiple GPUs for a simulation?

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  • G Offline
    G Offline
    Gwansuk Kang
    wrote on last edited by Gwansuk Kang
    #1

    Hi

    I have two GPUs(NVIDIA RTX A6000 48GB *2) on a workstation.
    when I set the 'Number of GPUs' to 2 in the solver setting and press the Run button to run the simulation, it failed after a while.
    Here is the part of Solver-log.
    I would greatly appreciate it if you could resolve this issue or know the reason.

    Best,
    Gwansuk.

    [Problem Class]: Initializing object
    [AxisGrid Class]: Initializing object (default constructor)
    [AxisGrid Class]: Initializing object (default constructor)
    [AxisGrid Class]: Initializing object (default constructor)
    [Point Source Class]: Initializing object
    [Problem_LAPWEII Class]: Initializing object
    [Constants Class]: Initializing object
    [AxisGrid Class]: Initializing axis data
    [AxisGrid Class]: Initializing axis data
    [AxisGrid Class]: Initializing axis data
    [Voxel Class]: Initialize voxel array
    [Voxel Class]: Allocating memory for voxel array
    [Problem_LAPWEII Class]: Calculating time step
    [Problem_LAPWEII Class]: Calculating background sound speed
    [Solver Class]: Initializing object
    [PMLHandler::PMLHandler()]: Creating PMLHandler object
    [solver_LAPWEII Class]: Initializing Solver
    [solver_LAPWEII Class]: Copying constants
    [solver_LAPWEII Class]: Initializing PML
    [PMLHandler::initialize()]: Initializing PMLHandler Object

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    • M Offline
      M Offline
      montanaro
      wrote on last edited by
      #2

      Could you paste the whole log?

      If the problem runs in 1 GPU, could you test that?

      Can you try reducing the grid resolution and see if it runs successfully then?

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