8 vertices limitation in DISV for PRT?

[RyanConway91]

I am running PRT on a voronoi DISV with MF6 version 6.7.0. The documentation states that "vertices for a cell in
a DISV grid is limited to 8. (page 281). I used algomesh to make make my voronoi grid and some cells have up to 10 vertices. PRT ran fine and the results look reasonable. I think there are no cells 8+ vertices near where I ran particle tracking. Are the results valid/the code works until a particle reaches a cell with >8 vertices?

[wpbonelli]

@RyanConway91 the documentation is outdated. The limit is no longer 8, but now 30. Thanks for finding this. We considered removing the limit entirely, but keeping it fixed buys some memory savings.

[wpbonelli]

I guess I didn't really answer your question above. 6.7.0 will fail loudly if a particle hits a cell with more than 30 lateral faces, but with a message about an invalid bitmask position, which is only going to be meaningful to developers. I am adding a trap upfront in #2727 with a better user-facing error message.