[petsc-users] Using OpenMP threads with PETSc

to mess with CPU affinities, because I implement affinity control myself inside my program. -- Lucas Clemente Vella lve...@gmail.com

[petsc-users] Solving hollow matrices

some kind of matrix reordering? -- Lucas Clemente Vella lve...@gmail.com

Re: [petsc-users] How to define blocks for PCFIELDSPLIT?

SC ERROR: #5 KSPSolve() line 599 in /build/petsc-fA70UI/petsc-3.7.3.dfsg1/src/ksp/ksp/interface/itfunc.c What is the proper way to setup PCFIELDSPLIT in this case? 2017-03-01 16:26 GMT-03:00 Barry Smith <bsm...@mcs.anl.gov>: > > > On Mar 1, 2017, at 12:59 PM, Lucas Clemente Vella <l

[petsc-users] How to define blocks for PCFIELDSPLIT?

of indices. How does these indices relates to the matrix coefficients? Also, ISCreateGeneral() seems to create a single block, and ISCreateBlock() seems to create multiple blocks of the same size. How to create multiple blocks with different sizes? Thanks. -- Lucas Clemente Vella lve...@gmail.com

[petsc-users] How to replace the default global database?

created. I could not find a function to replace global PetscOptions, or to copy one PetscOptions to another. Is it possible to do what I want to do? How? -- Lucas Clemente Vella lve...@gmail.com

Re: [petsc-users] How to replace the default global database?

> default options database ever because it would be uncertain what objects > the change affected or did not affect. > > > > > > > > On May 26, 2017, at 4:20 PM, Lucas Clemente Vella <lve...@gmail.com> > wrote: > > > > Here is what I want to do: &g

[petsc-users] Can't retrieve inner KSP from Schur complement

ess 0x6c0 is not stack'd, malloc'd or (recently) free'd ==13559== I tried doing this operation both before and after MatAssembly*() calls, and with both I get the same result. Petsc version is 3.7.5, installed from Ubuntu repository. Is this a bug? Or I am doing it wrong? -- Lucas Clemente Vella lve...@gmail.com

[petsc-users] A really huge hash is being requested.

/utils/ctable.c [0]PETSC ERROR: What caused the problem and how to handle it? Thanks, -- Lucas Clemente Vella lve...@gmail.com

[petsc-users] Segmentation fault inside PETSc

that affected more users? What could be the problem? -- Lucas Clemente Vella lve...@gmail.com