[petsc-dev] MatAXPY with DIFFERENT_NONZERO_PATTERN

Alexander Grayver agrayver at gfz-potsdam.de
Mon Apr 23 08:46:14 CDT 2012


On 23.04.2012 15:12, Jed Brown wrote:
> My fault, now fixed:
>
> http://petsc.cs.iit.edu/petsc/petsc-dev/rev/8a997a5a65d3

Jed,

MatAXPY works fine, although during tests there was crash:

Possible error running C/C++ src/snes/examples/tutorials/ex19 with 2 MPI 
processes
See http://www.mcs.anl.gov/petsc/documentation/faq.html
lid velocity = 0.0016, prandtl # = 1, grashof # = 1
[0]PETSC ERROR: PetscSplitReductionApply() line 328 in 
/home/lib/petsc-dev1/src/vec/vec/utils/comb.c
[0]PETSC ERROR: PetscSplitReductionEnd() line 247 in 
/home/lib/petsc-dev1/src/vec/vec/utils/comb.c
[0]PETSC ERROR: VecNormEnd() line 672 in 
/home/lib/petsc-dev1/src/vec/vec/utils/comb.c
[0]PETSC ERROR: SNESSolve_LS() line 172 in 
/home/lib/petsc-dev1/src/snes/impls/ls/ls.c
[0]PETSC ERROR: SNESSolve() line 3458 in 
/home/lib/petsc-dev1/src/snes/interface/snes.c
[0]PETSC ERROR: main() line 151 in src/snes/examples/tutorials/ex19.c
[1]PETSC ERROR: PetscSplitReductionApply() line 328 in 
/home/lib/petsc-dev1/src/vec/vec/utils/comb.c
[1]PETSC ERROR: PetscSplitReductionEnd() line 247 in 
/home/lib/petsc-dev1/src/vec/vec/utils/comb.c
[1]PETSC ERROR: VecNormEnd() line 672 in 
/home/lib/petsc-dev1/src/vec/vec/utils/comb.c
[1]PETSC ERROR: SNESSolve_LS() line 172 in 
/home/lib/petsc-dev1/src/snes/impls/ls/ls.c
[1]PETSC ERROR: SNESSolve() line 3458 in 
/home/lib/petsc-dev1/src/snes/interface/snes.c
[1]PETSC ERROR: main() line 151 in src/snes/examples/tutorials/ex19.c

-- 
Regards,
Alexander




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