processorAgglomerator masterCoarsest fails on small mesh
Summary
On tiny mesh switch on GAMG with processorAgglomerator masterCoarsest. Fails for scotch decomposition, not for hierarchical.
Example case
blockMesh
decomposePar
mpirun -np 5 icoFoam -parallel -debug-switch GAMGAgglomeration=1
What is the current bug behaviour?
What is the expected correct behavior?
Relevant logs and/or images
Courant Number mean: 0 max: 0
smoothSolver: Solving for Ux, Initial residual = 1, Final residual = 2.06898e-06, No Iterations 7
smoothSolver: Solving for Uy, Initial residual = 0, Final residual = 0, No Iterations 0
[1] #0 Foam::error::printStack(Foam::Ostream&)[2] #0 Foam::error::printStack(Foam::Ostream&)[3] #0 Foam::error::printStack(Foam::Ostream&)[4] #0 [0] #0 Foam::error::printStack(Foam::Ostream&)Foam::error::printStack(Foam::Ostream&) at ??:?
at ??:?
[3] #1 Foam::sigSegv::sigHandler(int) at ??:?
at ??:?
[2] #1 Foam::sigSegv::sigHandler(int)[4] #1 Foam::sigSegv::sigHandler(int)[1] #1 Foam::sigSegv::sigHandler(int) at ??:?
[0] #1 Foam::sigSegv::sigHandler(int) at ??:?
[3] #2 ? at ??:?
Environment information
- OpenFOAM version : 2112