Dear Matt
Thank you for your reply. I'm guessing that the line if (rank) N = 0; should be changed to something like if (rank != target_rank) N = 0; such that an empty SEQVEC and scatter are created on each rank other than target_rank. Med venlig hilsen / Best regards Peder ________________________________ Fra: Matthew Knepley <[email protected]> Sendt: 30. juni 2021 13:58:49 Til: Peder Jørgensgaard Olesen Cc: [email protected] Emne: Re: [petsc-users] Scatter parallel Vec to sequential Vec on non-zeroth process On Wed, Jun 30, 2021 at 6:49 AM Peder Jørgensgaard Olesen via petsc-users <[email protected]<mailto:[email protected]>> wrote: Hello I have a parallel vector, and I'd like to copy its data to a sequential vector located on a given process that is not necessarily the 0th process, so using VecScatterCreateToZero wouldn't do here. How might one approach this? The function is very short: https://www.mcs.anl.gov/petsc/petsc-current/src/vec/is/sf/interface/vscat.c.html#VecScatterCreateToZero Just go in and replace '0' by the rank you want. Thanks, Matt Med venlig hilsen / Best Regards Peder Jørgensgaard Olesen PhD Student, Turbulence Research Lab Dept. of Mechanical Engineering Technical University of Denmark Koppels Allé Bygning 403, Rum 105 DK-2800 Kgs. Lyngby -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener https://www.cse.buffalo.edu/~knepley/<http://www.cse.buffalo.edu/~knepley/>
