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prisms-center / phaseField

PRISMS-PF: An Open-Source Phase-Field Modeling Framework
https://prisms-center.github.io/phaseField/
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Problem in Loading Initial Conditions from File for AllenCahn Example application #181

Closed ksnvikrant closed 3 years ago

ksnvikrant commented 3 years ago

The example AllenCahn with loading initial conditions is not working. It initiated the .vtk file but not proceeding after 'Applying PField initial condition...'

The output is as follows:

Using the input parameter file: parameters_pfield.prm Number of constants: 2 Number of post-processing variables: 2 creating problem mesh... periodic facepairs: 0 problem dimensions: 100x100 number of elements: 65536

initializing matrix free object initializing finite element space P^1 for EXPLICIT_TIME_DEPENDENT:SCALAR field 'n' field ' n' DOF : 66049 (Constraint DOF : 0) total DOF : 66049 Begin reading vtk file Begin reading vtk file Begin reading vtk file initializing parallel::distributed residual and solution vectors computed mass matrix (using FE space for field: 0) Begin reading vtk file Read POINTS: 32768 reserve OK done Determine Body size Min Coordinate: 0 0 Max Coordinate: 100 50 done Initialize Bin done Read CELLS: 8192 done Bin interpolating functions done max_bin_size: 16 begin reading data done Construct PField 'n' done Applying PField initial condition...

stvdwtt commented 3 years ago

I talked with @ksnvikrant and the issue was that the number of MPI tasks (4 in this case) did not match the number of input files (2 for this example). With 2 MPI ranks the code runs.

david-montiel-t commented 3 years ago

Ah, yes. I remember encountering that.

Thank you, Steve.

I will make a note on the parameters_pfield.prm file.

David

On Tue, Oct 19, 2021, 2:53 PM Stephen DeWitt @.***> wrote:

I talked with @ksnvikrant https://github.com/ksnvikrant and the issue was that the number of MPI tasks (4 in this case) did not match the number of input files (2 for this example). With 2 MPI ranks the code runs.

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