Thank you very much. On Wednesday, 29 July 2020 12:31:30 UTC-7, Daniel Arndt wrote: > > Of course, there is also PETScWrappers::MatrixBase::print( > https://www.dealii.org/current/doxygen/deal.II/classPETScWrappers_1_1MatrixBase.html#a7515e640202d1ad50bd9baa13c404cb1) > > that should work. > > Best, > Daniel > > Am Mi., 29. Juli 2020 um 12:59 Uhr schrieb Wolfgang Bangerth < > bang...@colostate.edu <javascript:>>: > >> On 7/28/20 12:11 PM, 孙翔 wrote: >> > Hi, I followed step-17 and build a system matrix of which type >> > is PETScWrappers::MPI::SparseMatrix. I want to output it after >> assembling. How >> > should I do it? Thank you very much. >> >> If performance doesn't matter, just loop over all indices i and j and >> output >> the value of the matrix. If you're running in parallel, you need to >> restrict >> the loop over i to the locally owned range. >> >> Best >> W. >> >> >> -- >> ------------------------------------------------------------------------ >> Wolfgang Bangerth email: bang...@colostate.edu >> <javascript:> >> www: http://www.math.colostate.edu/~bangerth/ >> >> -- >> The deal.II project is located at http://www.dealii.org/ >> For mailing list/forum options, see >> https://groups.google.com/d/forum/dealii?hl=en >> --- >> You received this message because you are subscribed to the Google Groups >> "deal.II User Group" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to dea...@googlegroups.com <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/dealii/879a7ef3-7c13-8142-d970-773e3a57e470%40colostate.edu >> . >> >
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