PolycrystalCircles can fail when there are more particles in a file than are used in the final problem description. Specifically if entire grains are outside of the final domain, this can lead to few grains than IDs, which creates an indexing problem when assigning order parameters (graph coloring).
Steps to Reproduce
An input file from the SPS LDRD was supplied to reproduce the problem, but a new smaller test case will be included that also replicates the issue as part of the patch.
Impact
The problem is more widespread than just PolyCrystal circles. It appears that any initial condition that relies upon PolyCrystalUserObject base would run into issues if there are gaps in the particle/grain number when IDs are supplied. Many of the existing ICs don't assign IDs so the problem is somewhat isolated.
permcody
commented
2 years ago
Bug Description
PolycrystalCircles can fail when there are more particles in a file than are used in the final problem description. Specifically if entire grains are outside of the final domain, this can lead to few grains than IDs, which creates an indexing problem when assigning order parameters (graph coloring).
Steps to Reproduce
An input file from the SPS LDRD was supplied to reproduce the problem, but a new smaller test case will be included that also replicates the issue as part of the patch.
Impact
The problem is more widespread than just PolyCrystal circles. It appears that any initial condition that relies upon PolyCrystalUserObject base would run into issues if there are gaps in the particle/grain number when IDs are supplied. Many of the existing ICs don't assign IDs so the problem is somewhat isolated.