petsc-master 2020-11-24
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DMDA

  • using distributed arrays; Bratu nonlinear PDE in 3d.
    We solve the Bratu (SFI - solid fuel ignition) problem in a 3D rectangular
    domain, using distributed arrays (DMDAs) to partition the parallel grid.
  • using distributed arrays; Nonlinear driven cavity with multigrid in 2d.

    The 2D driven cavity problem is solved in a velocity-vorticity formulation.
    The flow can be driven with the lid or with bouyancy or both:
    -lidvelocity &ltlid&gt, where &ltlid&gt = dimensionless velocity of lid
    -grashof &ltgr&gt, where &ltgr&gt = dimensionless temperature gradent
    -prandtl &ltpr&gt, where &ltpr&gt = dimensionless thermal/momentum diffusity ratio
    -contours : draw contour plots of solution
  • using distributed arrays; J) {
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  • using distributed arrays; Surface processes in geophysics.
  • using distributed arrays; Bratu nonlinear PDE in 2d.
    We solve the Bratu (SFI - solid fuel ignition) problem in a 2D rectangular
    domain, using distributed arrays (DMDAs) to partition the parallel grid.
  • using distributed arrays;
    Description: This example solves a nonlinear system in parallel with SNES.
    We solve the Bratu (SFI - solid fuel ignition) problem in a 2D rectangular
    domain, using distributed arrays (DMDAs) to partition the parallel grid.
  • using distributed arrays;
    Description: Solves a nonlinear system in parallel with SNES.
    We solve the Bratu (SFI - solid fuel ignition) problem in a 2D rectangular
    domain, using distributed arrays (DMDAs) to partition the parallel grid.
  • using distributed arrays;
    Description: Solves a nonlinear system in parallel with SNES.
    We solve the Bratu (SFI - solid fuel ignition) problem in a 2D rectangular
    domain, using distributed arrays (DMDAs) to partition the parallel grid.
  • using distributed arrays Nonlinear Radiative Transport PDE with multigrid in 2d.
    Uses 2-dimensional distributed arrays.
    A 2-dim simplified Radiative Transport test problem is used, with analytic Jacobian.

    Solves the linear systems via multilevel methods

    The command line
    options are:
    -tleft <tl>, where <tl> indicates the left Diriclet BC
    -tright <tr>, where <tr> indicates the right Diriclet BC
    -beta <beta>, where <beta> indicates the exponent in T
  • using distributed arrays