Hi,
I want to create broadcast function which allow me to select algorithm in
application layer.
For example :
MPI_Bcast_alg(void *buffer, int count, MPI_Datatype datatype, int root,
MPI_Comm comm, int alg)
Same arguments as MPI_Bcast() and plus algorithm's id.
*coll_tune_bcast_decision.c* file contain function which allows us to
select function.
int ompi_coll_tuned_bcast_intra_do_this(void *buf, int count,
struct ompi_datatype_t *dtype,
int root,
struct ompi_communicator_t *comm,
mca_coll_base_module_t *module,
int algorithm, int faninout, int
segsize)
I've got some information about MCA. But yest, it is not clear for me how
to implement it ? How can I do it ?
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