Another question about MPI_INIT_THREAD.
At the moment, as said, my OpenMPi version supports only level 0:
MPI_THREAD_SINGLE. Suppose that i have this code:
#pragma omp barrier
#pragma omp master
MPI_Send(buf,...);
#pragma omp barrier
Due my OpenMPI configuration, is it dangerous use this type of code? What
does it means that OpenMPI doesn't support all thread levels of
MPI_INIT_THREAD?
2008/9/29 Gabriele Fatigati <g.fatig...@cineca.it>
> Dear OpenMPi developers,
> i've noted that OpenMPI 1.25 and 1.2.6 version doesn't supports thread
> initialization function shows below:
>
> int MPI_Init_thread(int *argc, char *((*argv)[]), int required, int
> *provided)
>
> used in hybrid programming MPI+OpenMP. Returned vales provided is 0, so
> the unique thread level supported is MPI_THREAD_SINGLE.
>
> Whitch is the newest OpenMPI version that has full support for
> MPI_THREAD_SINGLE,
> MPI_THREAD_FUNNELED, MPI_THREAD_SERIALIZED and MPI_THREAD_MULTIPLE?
>
> Thanks in advance.
>
> --
> Ing. Gabriele Fatigati
>
> CINECA Systems & Tecnologies Department
>
> Supercomputing Group
>
> Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy
>
> www.cineca.it Tel: +39 051 6171722
>
> g.fatig...@cineca.it
>
--
Ing. Gabriele Fatigati
CINECA Systems & Tecnologies Department
Supercomputing Group
Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy
www.cineca.it Tel: +39 051 6171722
g.fatig...@cineca.it
