Hello all, happy new year,
I'm working on parallelizing my code, it worked and provided some results
when i just called more than one processor, but created artifacts because i
didn't need one image of the whole program in each processor, conflicting
with each other.
Since the pressure solver is the main part i need in parallel im chosing
mpi to run everything in root processor until its time to solve for
pressure, at this point im trying to create a distributed vector using
either
call VecCreateMPI(PETSC_COMM_WORLD,PETSC_DECIDE,nbdp,xp,ierr)
or
call VecCreate(PETSC_COMM_WORLD,xp,ierr); CHKERRQ(ierr)
call VecSetType(xp,VECMPI,ierr)
call VecSetSizes(xp,PETSC_DECIDE,nbdp,ierr); CHKERRQ(ierr)
In both cases program hangs at this point, something it never happened on
the naive way i described before. I've made sure the global size, nbdp, is
the same in every processor. What can be wrong?
Thanks for your kind help,
Manuel.