[petsc-users] Creating a Vec with DMCreateGlobalVector from a dmplex?

[aymeric aymeric]

- I create a dmplex with DMPlexCreateHexBoxMesh- Distribute it with DMPlexDistribute- Create a Vec based on the distributed dmplex with DMCreateGlobalVector- But when I check the size of this Vec with VecGetOwnershipRange or VecGetSize, it is empty.
What am I missing? 
I know this is possible, because in SNES ex12.c a vector is created using this sequence of commands. Unfortunately, it some other commands are also used, but they are not all documented.
Thanks. 		 	   		  
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