On Fri, Jun 17, 2022 at 11:02 AM Barry Smith wrote:
>
> You do not need the loop over size. Each rank sets options and options
> prefix for its local objects and never anyone elses.
>
>char prefix[10];
>
>sprintf(prefix,"sub_%d_",rank);
>
>SNESNASMGetSNES(snes,0,&subsnes
Ahh, I understand now. I got rid of the loop. Adding
SNESSetFromOptions(subsnes) right after
SNESSetOptionsPrefix(subsnes,prefix) did not fix the issue.
On Fri, Jun 17, 2022 at 11:02 AM Barry Smith wrote:
>
> You do not need the loop over size. Each rank sets options and options
> prefix for i
You do not need the loop over size. Each rank sets options and options prefix
for its local objects and never anyone elses.
>char prefix[10];
>sprintf(prefix,"sub_%d_",rank);
>SNESNASMGetSNES(snes,0,&subsnes);
> if (rank SNESSetType(subsnes,SNESNE
Thank you. I am now able to pull each subsnes, change its snes type through
the API, and set a prefix. This is my updated code:
SNES snes, subsnes;
PetscMPIIntrank, size;
...
ierr = SNESCreate(PETSC_COMM_WORLD,&snes); CHKERRQ(ierr);
ierr = SNESSetType(snes,SNESNASM); C
MPI_Comm_size(PETSC_COMM_WORLD,&size);
MPI_Comm_rank(PETSC_COMM_WORLD,&rank);
> SNESNASMGetSNES(snes,0,&subsnes);
> char prefix[10];
> sprintf(prefix,"sub_%d_",rank);
> SNESSetOptionsPrefix(subsnes,prefix);
> On Jun 17, 2022, at 9:35 AM, Matthew Knepley wrote:
>
> On Fri, Jun 17,
On Fri, Jun 17, 2022 at 9:22 AM Takahashi, Tadanaga wrote:
> I'm having some trouble pulling out the subsolver. I tried to use
> SNESNASMGetSNES in a loop over each subdomain. However I get an error when
> I run the code with more than one MPI processors. Here is a snippet from my
> code:
>
>
I'm having some trouble pulling out the subsolver. I tried to use
SNESNASMGetSNES in a loop over each subdomain. However I get an error when
I run the code with more than one MPI processors. Here is a snippet from my
code:
SNES snes, subsnes;
PetscMPIIntrank, size;
...
ie
On Thu, Jun 16, 2022 at 5:57 PM tt73 wrote:
>
> Hi,
>
> I am using NASM as the outer solver for a nonlinear problem. For one of
> the subdomains, I want to run the local solve with a different set of
> options form the others. Is there any way to set options for each
> subdomain?
>
I can see tw
Hi, I am using NASM as the outer solver for a nonlinear problem. For one of
the subdomains, I want to run the local solve with a different set of options
form the others. Is there any way to set options for each subdomain?
