Oleg, Le ven. 6 déc. 2019 à 08:21, Oleg Kmechak <ofcrashb...@gmail.com> a écrit : > So I still have to use MPI to make program multihread, even if it is a single > machine, with 40 processors inside? > Maybe it is rough understanding, but I always thought that for multicomputer > processing is used MPI and for multiprocessor(on single machine) - > OpenMP(Which is embedded in deal.ii as far as I know). MPI and multithreading are different things. I am not sure what you mean by multicomputer but you need to use MPI if you have more than one node. You can use multithreading if all the processors are on the same motherboard (there are exception to this though). deal.II does not use OpenMP for multithreading instead it uses TBB but it doesn't really matter. Also while many operations are multithreaded in deal.II not all of them are, so if you really want to use all the processors, you will need to use MPI.
Best, Bruno -- 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 dealii+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/CAGVt9ePyLhSASDZoProvMoe3q2UL8fNgZk7EwucR0bNFvkdsEg%40mail.gmail.com.
