Re: [petsc-users] DMPlexDistributeField

2019-06-27 Thread Adrian Croucher via petsc-users
On 28/06/19 10:09 AM, Zhang, Junchao wrote: Check how the graph is created and then whether the parameters to PetscSFSetGraph() are correct. Yes, unfortunately I don't have a good enough understanding of how DMPlexDistribute() works to see what the problem is. - Adrian -- Dr Adrian

Re: [petsc-users] DMPlexDistributeField

2019-06-27 Thread Zhang, Junchao via petsc-users
On Thu, Jun 27, 2019 at 4:50 PM Adrian Croucher mailto:a.crouc...@auckland.ac.nz>> wrote: hi On 28/06/19 3:14 AM, Zhang, Junchao wrote: > You can dump relevant SFs to make sure their graph is correct. Yes, I'm doing that, and the graphs don't look correct. Check how the graph is created and

Re: [petsc-users] DMPlexDistributeField

2019-06-27 Thread Adrian Croucher via petsc-users
hi On 28/06/19 3:14 AM, Zhang, Junchao wrote: You can dump relevant SFs to make sure their graph is correct. Yes, I'm doing that, and the graphs don't look correct. - Adrian -- Dr Adrian Croucher Senior Research Fellow Department of Engineering Science University of Auckland, New Zealand

Re: [petsc-users] DMPlexDistributeField

2019-06-27 Thread Zhang, Junchao via petsc-users
On Wed, Jun 26, 2019 at 11:12 PM Adrian Croucher mailto:a.crouc...@auckland.ac.nz>> wrote: hi On 27/06/19 4:07 PM, Zhang, Junchao wrote: Adrian, I am working on SF but know nothing about DMPlexDistributeField. Do you think SF creation or communication is wrong? If yes, I'd like to know the

Re: [petsc-users] GAMG scalability for serendipity 20 nodes hexahedra

2019-06-27 Thread TARDIEU Nicolas via petsc-users
Thank you very much for your answer, Mark. Do you think it is worth it, to play around with aggregation variants? Plain aggregation "à la Notay" for instance. Nicolas De : mfad...@lbl.gov Envoyé : mercredi 26 juin 2019 22:37 À : TARDIEU Nicolas Cc : PETSc users list Objet : Re: