On 6/12/23 03:59, Abbas Ballout wrote:
But after activating distort_random the output with MPI 1 is:
Running with PETSc on 1 MPI rank(s)...
Cycle 0:
Number of active cells: 64
Number of degrees of freedom: 289
Solved in 8 iterations.
Sigma_flux -0.993997
but with MPI 4 the output is:
Running with PETSc on 4 MPI rank(s)...
Cycle 0:
Number of active cells: 64
Number of degrees of freedom: 289
Solved in 9 iterations.
Sigma_flux-0.994323
Abbas,
I suspect that when you call distort_random(), the mesh is different whether
you run on one or four processes. Have you confirmed that the meshes are
exactly identical?
Best
W.
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