/* * reduce_intra_dec * * Function: - seletects reduce algorithm to use * Accepts: - same arguments as MPI_reduce() * Returns: - MPI_SUCCESS or error code (passed from the reduce implementation) * */ int ompi_coll_tuned_reduce_intra_dec_dynamic( void *sendbuf, void *recvbuf, int count, struct ompi_datatype_t* datatype, struct ompi_op_t* op, int root, struct ompi_communicator_t* comm, mca_coll_base_module_t *module) { mca_coll_tuned_module_t *tuned_module = (mca_coll_tuned_module_t*) module; mca_coll_tuned_comm_t *data = tuned_module->tuned_data; OPAL_OUTPUT((ompi_coll_tuned_stream, "coll:tuned:reduce_intra_dec_dynamic")); /* check to see if we have some filebased rules */ if (data->com_rules[REDUCE]) { /* we do, so calc the message size or what ever we need and use this for the evaluation */ int alg, faninout, segsize, max_requests; size_t dsize; ompi_datatype_type_size (datatype, &dsize); dsize *= count; alg = ompi_coll_tuned_get_target_method_params (data->com_rules[REDUCE], dsize, &faninout, &segsize, &max_requests); if (alg) { /* we have found a valid choice from the file based rules for this message size */ return ompi_coll_tuned_reduce_intra_do_this (sendbuf, recvbuf, count, datatype, op, root, comm, module, alg, faninout, segsize, max_requests); } /* found a method */ } /*end if any com rules to check */ if (data->user_forced[REDUCE].algorithm) { return ompi_coll_tuned_reduce_intra_do_forced (sendbuf, recvbuf, count, datatype, op, root, comm, module); } return ompi_coll_tuned_reduce_intra_dec_fixed (sendbuf, recvbuf, count, datatype, op, root, comm, module); }
int ompi_coll_tuned_alltoall_intra_dec_dynamic(void *sbuf, int scount, struct ompi_datatype_t *sdtype, void* rbuf, int rcount, struct ompi_datatype_t *rdtype, struct ompi_communicator_t *comm, mca_coll_base_module_t *module) { mca_coll_tuned_module_t *tuned_module = (mca_coll_tuned_module_t*) module; mca_coll_tuned_comm_t *data = tuned_module->tuned_data; OPAL_OUTPUT((ompi_coll_tuned_stream, "ompi_coll_tuned_alltoall_intra_dec_dynamic")); /* check to see if we have some filebased rules */ if (data->com_rules[ALLTOALL]) { /* we do, so calc the message size or what ever we need and use this for the evaluation */ int comsize; int alg, faninout, segsize, max_requests; size_t dsize; ompi_datatype_type_size (sdtype, &dsize); comsize = ompi_comm_size(comm); dsize *= (ptrdiff_t)comsize * (ptrdiff_t)scount; alg = ompi_coll_tuned_get_target_method_params (data->com_rules[ALLTOALL], dsize, &faninout, &segsize, &max_requests); if (alg) { /* we have found a valid choice from the file based rules for this message size */ return ompi_coll_tuned_alltoall_intra_do_this (sbuf, scount, sdtype, rbuf, rcount, rdtype, comm, module, alg, faninout, segsize, max_requests); } /* found a method */ } /*end if any com rules to check */ if (data->user_forced[ALLTOALL].algorithm) { return ompi_coll_tuned_alltoall_intra_do_forced (sbuf, scount, sdtype, rbuf, rcount, rdtype, comm, module); } return ompi_coll_tuned_alltoall_intra_dec_fixed (sbuf, scount, sdtype, rbuf, rcount, rdtype, comm, module); }
/* * reduce_scatter_intra_dec * * Function: - seletects reduce_scatter algorithm to use * Accepts: - same arguments as MPI_Reduce_scatter() * Returns: - MPI_SUCCESS or error code (passed from * the reduce_scatter implementation) * */ int ompi_coll_tuned_reduce_scatter_intra_dec_dynamic(const void *sbuf, void *rbuf, const int *rcounts, struct ompi_datatype_t *dtype, struct ompi_op_t *op, struct ompi_communicator_t *comm, mca_coll_base_module_t *module) { mca_coll_tuned_module_t *tuned_module = (mca_coll_tuned_module_t*) module; OPAL_OUTPUT((ompi_coll_tuned_stream, "coll:tuned:reduce_scatter_intra_dec_dynamic")); /* check to see if we have some filebased rules */ if (tuned_module->com_rules[REDUCESCATTER]) { /* we do, so calc the message size or what ever we need and use this for the evaluation */ int alg, faninout, segsize, ignoreme, i, count, size; size_t dsize; size = ompi_comm_size(comm); for (i = 0, count = 0; i < size; i++) { count += rcounts[i];} ompi_datatype_type_size (dtype, &dsize); dsize *= count; alg = ompi_coll_tuned_get_target_method_params (tuned_module->com_rules[REDUCESCATTER], dsize, &faninout, &segsize, &ignoreme); if (alg) { /* we have found a valid choice from the file based rules for this message size */ return ompi_coll_tuned_reduce_scatter_intra_do_this (sbuf, rbuf, rcounts, dtype, op, comm, module, alg, faninout, segsize); } /* found a method */ } /*end if any com rules to check */ if (tuned_module->user_forced[REDUCESCATTER].algorithm) { return ompi_coll_tuned_reduce_scatter_intra_do_this(sbuf, rbuf, rcounts, dtype, op, comm, module, tuned_module->user_forced[REDUCESCATTER].algorithm, tuned_module->user_forced[REDUCESCATTER].chain_fanout, tuned_module->user_forced[REDUCESCATTER].segsize); } return ompi_coll_tuned_reduce_scatter_intra_dec_fixed (sbuf, rbuf, rcounts, dtype, op, comm, module); }
int ompi_coll_tuned_alltoallv_intra_dec_dynamic(const void *sbuf, const int *scounts, const int *sdisps, struct ompi_datatype_t *sdtype, void* rbuf, const int *rcounts, const int *rdisps, struct ompi_datatype_t *rdtype, struct ompi_communicator_t *comm, mca_coll_base_module_t *module) { mca_coll_tuned_module_t *tuned_module = (mca_coll_tuned_module_t*) module; OPAL_OUTPUT((ompi_coll_tuned_stream, "ompi_coll_tuned_alltoallv_intra_dec_dynamic")); /** * check to see if we have some filebased rules. As we don't have global * knowledge about the total amount of data, use the first available rule. * This allow the users to specify the alltoallv algorithm to be used only * based on the communicator size. */ if (tuned_module->com_rules[ALLTOALLV]) { int alg, faninout, segsize, max_requests; alg = ompi_coll_tuned_get_target_method_params (tuned_module->com_rules[ALLTOALLV], 0, &faninout, &segsize, &max_requests); if (alg) { /* we have found a valid choice from the file based rules for this message size */ return ompi_coll_tuned_alltoallv_intra_do_this (sbuf, scounts, sdisps, sdtype, rbuf, rcounts, rdisps, rdtype, comm, module, alg); } /* found a method */ } /*end if any com rules to check */ if (tuned_module->user_forced[ALLTOALLV].algorithm) { return ompi_coll_tuned_alltoallv_intra_do_this(sbuf, scounts, sdisps, sdtype, rbuf, rcounts, rdisps, rdtype, comm, module, tuned_module->user_forced[ALLTOALLV].algorithm); } return ompi_coll_tuned_alltoallv_intra_dec_fixed(sbuf, scounts, sdisps, sdtype, rbuf, rcounts, rdisps, rdtype, comm, module); }
/* * bcast_intra_dec * * Function: - seletects broadcast algorithm to use * Accepts: - same arguments as MPI_Bcast() * Returns: - MPI_SUCCESS or error code (passed from the bcast implementation) */ int ompi_coll_tuned_bcast_intra_dec_dynamic(void *buf, int count, struct ompi_datatype_t *dtype, int root, struct ompi_communicator_t *comm, mca_coll_base_module_t *module) { mca_coll_tuned_module_t *tuned_module = (mca_coll_tuned_module_t*) module; OPAL_OUTPUT((ompi_coll_tuned_stream, "coll:tuned:bcast_intra_dec_dynamic")); /* check to see if we have some filebased rules */ if (tuned_module->com_rules[BCAST]) { /* we do, so calc the message size or what ever we need and use this for the evaluation */ int alg, faninout, segsize, ignoreme; size_t dsize; ompi_datatype_type_size (dtype, &dsize); dsize *= count; alg = ompi_coll_tuned_get_target_method_params (tuned_module->com_rules[BCAST], dsize, &faninout, &segsize, &ignoreme); if (alg) { /* we have found a valid choice from the file based rules for this message size */ return ompi_coll_tuned_bcast_intra_do_this (buf, count, dtype, root, comm, module, alg, faninout, segsize); } /* found a method */ } /*end if any com rules to check */ if (tuned_module->user_forced[BCAST].algorithm) { return ompi_coll_tuned_bcast_intra_do_this(buf, count, dtype, root, comm, module, tuned_module->user_forced[BCAST].algorithm, tuned_module->user_forced[BCAST].chain_fanout, tuned_module->user_forced[BCAST].segsize); } return ompi_coll_tuned_bcast_intra_dec_fixed (buf, count, dtype, root, comm, module); }