petsc-3.5.1 2014-08-06
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Laplacian, 2d

  • ex13.c Solves a variable Poisson problem with KSP.
  • ex13f90.F

  • ex16.c Solves a sequence of linear systems with different right-hand-side vectors.
    Input parameters include:
    -ntimes <ntimes> : number of linear systems to solve
    -view_exact_sol : write exact solution vector to stdout
    -m <mesh_x> : number of mesh points in x-direction
    -n <mesh_n> : number of mesh points in y-direction
  • ex18.c
  • ex2.c Solves a linear system in parallel with KSP.
    Input parameters include:
    -random_exact_sol : use a random exact solution vector
    -view_exact_sol : write exact solution vector to stdout
    -m <mesh_x> : number of mesh points in x-direction
    -n <mesh_n> : number of mesh points in y-direction
  • ex46.c Solves a linear system in parallel with KSP and DM.
    Compare this to ex2 which solves the same problem without a DM.