Are you increasing your problem size with the number of ranks or same size
problem?
It could also be out of memory issues.
No error message is printed; which is not standard. It should print first a
message why it failed.
Are you sure all the libraries were rebuilt.
R
It seems the problem is triggered by DMSetUp. You can write a small test
creating the DMDA with the same size as your code, to see if you can reproduce
the problem. If yes, it would be much easier for us to debug it.
--Junchao Zhang
On Thu, Jan 16, 2020 at 7:38 AM Anthony Jourdon
mailto:jourdo
De : Zhang, Junchao
Envoyé : jeudi 16 janvier 2020 16:49
À : Anthony Jourdon
Cc : petsc-users@mcs.anl.gov
Objet : Re: [petsc-users] DMDA Error
It seems the problem is triggered by DMSetUp. You can write a small test
creating the DMDA with the same size as
Jourdon
>
>
> --
> *De :* Zhang, Junchao
> *Envoyé :* jeudi 16 janvier 2020 16:49
> *À :* Anthony Jourdon
> *Cc :* petsc-users@mcs.anl.gov
> *Objet :* Re: [petsc-users] DMDA Error
>
> It seems the problem is triggered by DMSetUp. You can
users@mcs.anl.gov>>
Objet : Re: [petsc-users] DMDA Error
It seems the problem is triggered by DMSetUp. You can write a small test
creating the DMDA with the same size as your code, to see if you can reproduce
the problem. If yes, it would be much easier for us to debug it.
--Junchao Zhang
On
petsc.
Thank you for your time,
Sincerly.
Anthony Jourdon
De : Zhang, Junchao mailto:jczh...@mcs.anl.gov>>
Envoyé : jeudi 16 janvier 2020 16:49
À : Anthony Jourdon
mailto:jourdon_anth...@hotmail.fr>>
Cc : petsc-users@mcs.anl.gov<mailto:petsc-users@m
rmed about how it goes.
Thank you very much.
Sincerly,
Anthony Jourdon
De : Zhang, Junchao
Envoyé : vendredi 24 janvier 2020 16:52
À : Anthony Jourdon
Cc : petsc-users@mcs.anl.gov
Objet : Re: [petsc-users] DMDA Error
Hello, Anthony
I tried petsc-3.8.4 + icc/g
De : Zhang, Junchao
Envoyé : vendredi 24 janvier 2020 16:52
À : Anthony Jourdon
Cc : petsc-users@mcs.anl.gov
Objet : Re: [petsc-users] DMDA Error
Hello, Anthony
I tried petsc-3.8.4 + icc/gcc + Intel MPI 2019 update 5 + optimized/debug
build, and ran with 1024 ranks
On , 2020Feb20, at 02:03, Anthony Jourdon
mailto:jourdon_anth...@hotmail.fr>> wrote:
It appears that the bug indeed comes from intel mpi 2019 and all of its updates.
Try
export I_MPI_ADJUST_ALLREDUCE=1
(Please check spelling)
For some reason the default allreduce algorithm is broken. This
