Re: [petsc-users] TSSetExactFinalTime Behavior Without TSAdapt

Add TSSetFromOptions(ts_solver) before TSSolve(). Please let us know if it works. Hong > On Jun 7, 2016, at 12:49 PM, Paul Urbanczyk wrote: > > Hello, > > See below for my initial code, before adding TSSetExactFinalTime. > > That version yielded the following error: > >

Re: [petsc-users] fgmres does not support left preconditioner

I do not think that it is possible to have a "left preconditioned" FMGRES. Barry > On Jun 8, 2016, at 2:31 PM, Fande Kong wrote: > > Hi all, > > Any reasons to let fgmres do not support left preconditioner? In theory, > fgmres should with left preconditioner.

Re: [petsc-users] KSPSolve errors on blues

OK, this makes sense. Now my libMesh code use SerialMesh, which keeps a copy on each processor, although the operation is parallelized. So it requires more memory if multiple CPUs are used. This may be a potential culprit. But I suppose the 60x60x60 mesh data(all second order) shouldn't be so

Re: [petsc-users] KSPSolve errors on blues

> On Jun 8, 2016, at 4:08 PM, Xujun Zhao wrote: > > Barry, > > Thank you. I am testing on the blues. > btw, what do they mean for the different types of memory usage? for example, > below is the summary of mem usage for 60x60x60(with 2.9M dofs). The max > process memory

Re: [petsc-users] KSPSolve errors on blues

Barry, Thank you. I am testing on the blues. btw, what do they mean for the different types of memory usage? for example, below is the summary of mem usage for 60x60x60(with 2.9M dofs). The max process memory is 3 times as the max space PetscMalloc()ed. Summary of Memory Usage in PETSc Maximum

[petsc-users] fgmres does not support left preconditioner

Hi all, Any reasons to let fgmres do not support left preconditioner? In theory, fgmres should with left preconditioner. Please correct me, if I am wrong. Fande Kong, [0]PETSC ERROR: - Error Message -- [0]PETSC

Re: [petsc-users] KSPSolve errors on blues

> On Jun 8, 2016, at 1:30 PM, Xujun Zhao wrote: > > A quick test of a smaller system on my laptop with 25x25x25 mesh gives the > following info. > The memory used keeps increasing from 1 to 3 CPUs, but slightly decreases > with 4 CPUs. yes this does not look problematic

Re: [petsc-users] KSPSolve errors on blues

A quick test of a smaller system on my laptop with 25x25x25 mesh gives the following info. The memory used keeps increasing from 1 to 3 CPUs, but slightly decreases with 4 CPUs. On the other hand, 60x60x60 mesh (2.9M dofs) is also not a big system...

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Re: [petsc-users] How to refine the Vertex Sets in DMPlex

Hi Lawrence and Matt, Many thanks for your help. Best regards, Rongliang On 06/08/2016 04:36 PM, Matthew Knepley wrote: On Wed, Jun 8, 2016 at 5:45 AM, Rongliang Chen > wrote: Hi Matt, I tried your suggestions but I still can not get

Re: [petsc-users] How to refine the Vertex Sets in DMPlex

On Wed, Jun 8, 2016 at 5:45 AM, Rongliang Chen wrote: > Hi Matt, > > I tried your suggestions but I still can not get the refined Vertex Sets. > What I am doing looks like this: > --- > if (!rank) { > Put

Re: [petsc-users] How to refine the Vertex Sets in DMPlex

> On 8 Jun 2016, at 06:45, Rongliang Chen wrote: > > Hi Matt, > > I tried your suggestions but I still can not get the refined Vertex Sets. > What I am doing looks like this: > --- > if (!rank) { >