http://www.mcs.anl.gov/petsc/petsc-as/snapshots/petsc-current/docs/manualpages/Vec/VecStrideScatterAll.html
Matt On Sat, Jun 4, 2011 at 5:01 AM, khalid ashraf <khalid_eee at yahoo.com> wrote: > Hi, > I want to copy 3 parallel vectors of size N into a vector of size 3N where > the 3 vector entries goes as > dest(3*i)=vec1(i); > dest(1+3*i)=vec2(i); > dest(2+3*i)=vec3(i); > > Could you please suggest what would be the most efficient way to copy for > parallel performance. > > I guess it would be best if all the vectors have the same parallel layout. > Is there a way to make sure that the vectors vec1(N elements) and dest(3N > elements) have similar parallel layout ? > > Thanks in advance. > > Khalid > > -- 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/20110604/d3f58f44/attachment.htm>
