Dear all, I did it, but I am still afraid about Nathan concern. What do you think?
thanks again Diego On 10 August 2018 at 17:41, Reuti <re...@staff.uni-marburg.de> wrote: > > > Am 10.08.2018 um 17:24 schrieb Diego Avesani <diego.aves...@gmail.com>: > > > > Dear all, > > I have probably understood. > > The trick is to use a real vector and to memorize also the rank. > > Yes, I thought of this: > > https://www.mpi-forum.org/docs/mpi-1.1/mpi-11-html/node79.html > > -- Reuti > > > > Have I understood correctly? > > thanks > > > > Diego > > > > > > On 10 August 2018 at 17:19, Diego Avesani <diego.aves...@gmail.com> > wrote: > > Deal all, > > I do not understand how MPI_MINLOC works. it seem locate the maximum in > a vector and not the CPU to which the valur belongs to. > > > > @ray: and if two has the same value? > > > > thanks > > > > > > Diego > > > > > > On 10 August 2018 at 17:03, Ray Sheppard <rshep...@iu.edu> wrote: > > As a dumb scientist, I would just bcast the value I get back to the > group and ask whoever owns it to kindly reply back with its rank. > > Ray > > > > > > On 8/10/2018 10:49 AM, Reuti wrote: > > Hi, > > > > Am 10.08.2018 um 16:39 schrieb Diego Avesani <diego.aves...@gmail.com>: > > > > Dear all, > > > > I have a problem: > > In my parallel program each CPU compute a value, let's say eff. > > > > First of all, I would like to know the maximum value. This for me is > quite simple, > > I apply the following: > > > > CALL MPI_ALLREDUCE(eff, effmaxWorld, 1, MPI_DOUBLE_PRECISION, MPI_MAX, > MPI_MASTER_COMM, MPIworld%iErr) > > Would MPI_MAXLOC be sufficient? > > > > -- Reuti > > > > > > However, I would like also to know to which CPU that value belongs. Is > it possible? > > > > I have set-up a strange procedure but it works only when all the CPUs > has different values but fails when two of then has the same eff value. > > > > Is there any intrinsic MPI procedure? > > in anternative, > > do you have some idea? > > > > really, really thanks. > > Diego > > > > > > Diego > > > > _______________________________________________ > > users mailing list > > users@lists.open-mpi.org > > https://lists.open-mpi.org/mailman/listinfo/users > > _______________________________________________ > > users mailing list > > users@lists.open-mpi.org > > https://lists.open-mpi.org/mailman/listinfo/users > > > > _______________________________________________ > > users mailing list > > users@lists.open-mpi.org > > https://lists.open-mpi.org/mailman/listinfo/users > > > > > > _______________________________________________ > > users mailing list > > users@lists.open-mpi.org > > https://lists.open-mpi.org/mailman/listinfo/users > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users >
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