You should just create a parallel Vec to hold the 1D data. DAGetLocalInfo() tells you all the local sizes.
Thanks Matt. But I am not sure how this would help since PETSC_COMM_WORLD includes all the processors and in all three directions whereas the 1-D data is only the size of Nx points. This vector is not big at all, I could even create is on one processor. The only concern that I have is can I create an *.h5 file using PETSC_COMM_WORLD, dump the data, close the file and then, re-open the file (append mode) with a different viewer created via PETSC_COMM_SELF, and dump the coordinates vector to the end of it? Of course, I only call PETSC_COMM_SELF on processor zero. Thanks, M On Thu, Jan 19, 2012 at 4:33 PM, Matthew Knepley <knepley at gmail.com> wrote: > On Thu, Jan 19, 2012 at 6:08 PM, Mohamad M. Nasr-Azadani <mmnasr at gmail.com > > wrote: > >> Thanks Jed. >> My solution to that was to create a 1D vector local to for instance >> processor zero that holds all the coordinates. Then after I dumped all the >> parallel data to the *.h5 file, I create another viewer on processor zero >> or PETSC_COMM_SELF and dump that new vector including tHe coordinates to >> the end of the existing file. >> Do you think that should be possible? >> > > You should just create a parallel Vec to hold the 1D data. > DAGetLocalInfo() tells you all the local sizes. > > Matt > > >> Thanks, >> Mohamad >> >> >> >> >> On Thu, Jan 19, 2012 at 4:02 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote: >> >>> On Thu, Jan 19, 2012 at 18:00, Mohamad M. Nasr-Azadani <mmnasr at gmail.com >>> > wrote: >>> >>>> What I need is just to add 3 1-D arrays of (x[Nx]+y[Ny]+z[Nz]) >>>> including the grid coordinates to the end of the *.h5 file and then later >>>> on, I can use any visualization software to load the data using those >>>> coordinates. I am using orthogonal grid, that's why I don't need all the >>>> (x,y,z) coordinates for each cell. >>> >>> >>> If you want this special case, you have to manage it by hand. >>> >> >> > > > -- > 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 > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20120119/d1dd7e10/attachment.htm>
