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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2020 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2008 Sun Microsystems, Inc. All rights reserved.
* Copyright (c) 2015-2018 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2020 Amazon.com, Inc. or its affiliates.
* All Rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "mpi.h"
#include "ompi/constants.h"
#include "ompi/datatype/ompi_datatype.h"
#include "ompi/communicator/communicator.h"
#include "ompi/mca/coll/base/base.h"
#include "ompi/mca/coll/coll.h"
#include "ompi/mca/coll/base/coll_tags.h"
#include "coll_tuned.h"
/*
* Notes on evaluation rules and ordering
*
* The order is:
* use file based rules if presented (-coll_tuned_dynamic_rules_filename = rules)
* Else
* use forced rules (-coll_tuned_dynamic_ALG_intra_algorithm = algorithm-number)
* Else
* use fixed (compiled) rule set (or nested ifs)
*
*/
/*
* allreduce_intra
*
* Function: - allreduce using other MPI collectives
* Accepts: - same as MPI_Allreduce()
* Returns: - MPI_SUCCESS or error code
*/
int
ompi_coll_tuned_allreduce_intra_dec_dynamic (const void *sbuf, void *rbuf, int count,
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, "ompi_coll_tuned_allreduce_intra_dec_dynamic"));
/* Check first if an algorithm is set explicitly for this collective */
if (tuned_module->user_forced[ALLREDUCE].algorithm) {
return ompi_coll_tuned_allreduce_intra_do_this(sbuf, rbuf, count, dtype, op, comm, module,
tuned_module->user_forced[ALLREDUCE].algorithm,
tuned_module->user_forced[ALLREDUCE].tree_fanout,
tuned_module->user_forced[ALLREDUCE].segsize);
}
/* check to see if we have some filebased rules */
if (tuned_module->com_rules[ALLREDUCE]) {
/* 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[ALLREDUCE],
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_allreduce_intra_do_this (sbuf, rbuf, count, dtype, op,
comm, module,
alg, faninout, segsize);
} /* found a method */
} /*end if any com rules to check */
return ompi_coll_tuned_allreduce_intra_dec_fixed (sbuf, rbuf, count, dtype, op,
comm, module);
}
/*
* alltoall_intra_dec
*
* Function: - seletects alltoall algorithm to use
* Accepts: - same arguments as MPI_Alltoall()
* Returns: - MPI_SUCCESS or error code (passed from the alltoall implementation)
*/
int ompi_coll_tuned_alltoall_intra_dec_dynamic(const 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;
OPAL_OUTPUT((ompi_coll_tuned_stream, "ompi_coll_tuned_alltoall_intra_dec_dynamic"));
/* Check first if an algorithm is set explicitly for this collective */
if (tuned_module->user_forced[ALLTOALL].algorithm) {
return ompi_coll_tuned_alltoall_intra_do_this(sbuf, scount, sdtype,
rbuf, rcount, rdtype,
comm, module,
tuned_module->user_forced[ALLTOALL].algorithm,
tuned_module->user_forced[ALLTOALL].tree_fanout,
tuned_module->user_forced[ALLTOALL].segsize,
tuned_module->user_forced[ALLTOALL].max_requests);
}
/* check to see if we have some filebased rules */
if (tuned_module->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 (tuned_module->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 */
return ompi_coll_tuned_alltoall_intra_dec_fixed (sbuf, scount, sdtype,
rbuf, rcount, rdtype,
comm, module);
}
/*
* Function: - selects alltoallv algorithm to use
* Accepts: - same arguments as MPI_Alltoallv()
* Returns: - MPI_SUCCESS or error code
*/
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 first if an algorithm is set explicitly for this collective */
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);
}
/**
* 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 */
return ompi_coll_tuned_alltoallv_intra_dec_fixed(sbuf, scounts, sdisps, sdtype,
rbuf, rcounts, rdisps, rdtype,
comm, module);
}
/*
* barrier_intra_dec
*
* Function: - seletects barrier algorithm to use
* Accepts: - same arguments as MPI_Barrier()
* Returns: - MPI_SUCCESS or error code (passed from the barrier implementation)
*/
int ompi_coll_tuned_barrier_intra_dec_dynamic(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_barrier_intra_dec_dynamic"));
/* Check first if an algorithm is set explicitly for this collective */
if (tuned_module->user_forced[BARRIER].algorithm) {
return ompi_coll_tuned_barrier_intra_do_this(comm, module,
tuned_module->user_forced[BARRIER].algorithm,
tuned_module->user_forced[BARRIER].tree_fanout,
tuned_module->user_forced[BARRIER].segsize);
}
/* check to see if we have some filebased rules */
if (tuned_module->com_rules[BARRIER]) {
/* we do, so calc the message size or what ever we need and use this for the evaluation */
int alg, faninout, segsize, ignoreme;
alg = ompi_coll_tuned_get_target_method_params (tuned_module->com_rules[BARRIER],
0, &faninout, &segsize, &ignoreme);
if (alg) {
/* we have found a valid choice from the file based rules for this message size */
return ompi_coll_tuned_barrier_intra_do_this (comm, module,
alg, faninout, segsize);
} /* found a method */
} /*end if any com rules to check */
return ompi_coll_tuned_barrier_intra_dec_fixed (comm, module);
}
/*
* bcast_intra_dec
*
* Function: - selects 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 first if an algorithm is set explicitly for this collective */
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);
}
/* 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 */
return ompi_coll_tuned_bcast_intra_dec_fixed (buf, count, dtype, root,
comm, module);
}
/*
* 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( const void *sbuf, void *rbuf,
int count, struct ompi_datatype_t* dtype,
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;
OPAL_OUTPUT((ompi_coll_tuned_stream, "coll:tuned:reduce_intra_dec_dynamic"));
/* Check first if an algorithm is set explicitly for this collective */
if (tuned_module->user_forced[REDUCE].algorithm) {
return ompi_coll_tuned_reduce_intra_do_this(sbuf, rbuf, count, dtype,
op, root, comm, module,
tuned_module->user_forced[REDUCE].algorithm,
tuned_module->user_forced[REDUCE].chain_fanout,
tuned_module->user_forced[REDUCE].segsize,
tuned_module->user_forced[REDUCE].max_requests);
}
/* check to see if we have some filebased rules */
if (tuned_module->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(dtype, &dsize);
dsize *= count;
alg = ompi_coll_tuned_get_target_method_params (tuned_module->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 (sbuf, rbuf, count, dtype,
op, root, comm, module,
alg, faninout,
segsize, max_requests);
} /* found a method */
} /*end if any com rules to check */
return ompi_coll_tuned_reduce_intra_dec_fixed (sbuf, rbuf, count, dtype,
op, root, 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 first if an algorithm is set explicitly for this collective */
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);
}
/* 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 */
return ompi_coll_tuned_reduce_scatter_intra_dec_fixed (sbuf, rbuf, rcounts,
dtype, op, comm, module);
}
/*
* reduce_scatter_block_intra_dec
*
* Function: - seletects reduce_scatter_block algorithm to use
* Accepts: - same arguments as MPI_Reduce_scatter_block()
* Returns: - MPI_SUCCESS or error code (passed from
* the reduce_scatter implementation)
*
*/
int ompi_coll_tuned_reduce_scatter_block_intra_dec_dynamic(const void *sbuf, void *rbuf,
int rcount,
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_block_intra_dec_dynamic"));
/* Check first if an algorithm is set explicitly for this collective */
if (tuned_module->user_forced[REDUCESCATTERBLOCK].algorithm) {
return ompi_coll_tuned_reduce_scatter_block_intra_do_this(sbuf, rbuf, rcount, dtype,
op, comm, module,
tuned_module->user_forced[REDUCESCATTERBLOCK].algorithm,
tuned_module->user_forced[REDUCESCATTERBLOCK].chain_fanout,
tuned_module->user_forced[REDUCESCATTERBLOCK].segsize);
}
/* check to see if we have some filebased rules */
if (tuned_module->com_rules[REDUCESCATTERBLOCK]) {
/* we do, so calc the message size or what ever we need and use
this for the evaluation */
int alg, faninout, segsize, ignoreme, size;
size_t dsize;
size = ompi_comm_size(comm);
ompi_datatype_type_size (dtype, &dsize);
dsize *= rcount * size;
alg = ompi_coll_tuned_get_target_method_params(tuned_module->com_rules[REDUCESCATTERBLOCK],
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_block_intra_do_this (sbuf, rbuf, rcount, dtype,
op, comm, module,
alg, faninout, segsize);
} /* found a method */
} /* end if any com rules to check */
return ompi_coll_tuned_reduce_scatter_block_intra_dec_fixed (sbuf, rbuf, rcount,
dtype, op, comm, module);
}
/*
* allgather_intra_dec
*
* Function: - seletects allgather algorithm to use
* Accepts: - same arguments as MPI_Allgather()
* Returns: - MPI_SUCCESS or error code (passed from the selected
* allgather function).
*/
int ompi_coll_tuned_allgather_intra_dec_dynamic(const 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;
OPAL_OUTPUT((ompi_coll_tuned_stream,
"ompi_coll_tuned_allgather_intra_dec_dynamic"));
/* Check first if an algorithm is set explicitly for this collective */
if (tuned_module->user_forced[ALLGATHER].algorithm) {
/* User-forced algorithm */
return ompi_coll_tuned_allgather_intra_do_this(sbuf, scount, sdtype,
rbuf, rcount, rdtype,
comm, module,
tuned_module->user_forced[ALLGATHER].algorithm,
tuned_module->user_forced[ALLGATHER].tree_fanout,
tuned_module->user_forced[ALLGATHER].segsize);
}
if (tuned_module->com_rules[ALLGATHER]) {
/* We have file based rules:
- calculate message size and other necessary information */
int comsize;
int alg, faninout, segsize, ignoreme;
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 (tuned_module->com_rules[ALLGATHER],
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_allgather_intra_do_this (sbuf, scount, sdtype,
rbuf, rcount, rdtype,
comm, module,
alg, faninout, segsize);
}
}
/* Use default decision */
return ompi_coll_tuned_allgather_intra_dec_fixed (sbuf, scount, sdtype,
rbuf, rcount, rdtype,
comm, module);
}
/*
* allgatherv_intra_dec
*
* Function: - seletects allgatherv algorithm to use
* Accepts: - same arguments as MPI_Allgatherv()
* Returns: - MPI_SUCCESS or error code (passed from the selected
* allgatherv function).
*/
int ompi_coll_tuned_allgatherv_intra_dec_dynamic(const void *sbuf, int scount,
struct ompi_datatype_t *sdtype,
void* rbuf, const int *rcounts,
const int *rdispls,
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_allgatherv_intra_dec_dynamic"));
/* Check first if an algorithm is set explicitly for this collective */
if (tuned_module->user_forced[ALLGATHERV].algorithm) {
/* User-forced algorithm */
return ompi_coll_tuned_allgatherv_intra_do_this(sbuf, scount, sdtype,
rbuf, rcounts, rdispls, rdtype,
comm, module,
tuned_module->user_forced[ALLGATHERV].algorithm,
tuned_module->user_forced[ALLGATHERV].tree_fanout,
tuned_module->user_forced[ALLGATHERV].segsize);
}
if (tuned_module->com_rules[ALLGATHERV]) {
/* We have file based rules:
- calculate message size and other necessary information */
int comsize, i;
int alg, faninout, segsize, ignoreme;
size_t dsize, total_size, per_rank_size;
comsize = ompi_comm_size(comm);
ompi_datatype_type_size (sdtype, &dsize);
total_size = 0;
for (i = 0; i < comsize; i++) { total_size += dsize * rcounts[i]; }
per_rank_size = total_size / comsize;
alg = ompi_coll_tuned_get_target_method_params (tuned_module->com_rules[ALLGATHERV],
per_rank_size, &faninout, &segsize, &ignoreme);
if (alg) {
/* we have found a valid choice from the file based rules for
this message size */
return ompi_coll_tuned_allgatherv_intra_do_this (sbuf, scount, sdtype,
rbuf, rcounts,
rdispls, rdtype,
comm, module,
alg, faninout, segsize);
}
}
/* Use default decision */
return ompi_coll_tuned_allgatherv_intra_dec_fixed (sbuf, scount, sdtype,
rbuf, rcounts,
rdispls, rdtype,
comm, module);
}
int ompi_coll_tuned_gather_intra_dec_dynamic(const void *sbuf, int scount,
struct ompi_datatype_t *sdtype,
void* rbuf, int rcount,
struct ompi_datatype_t *rdtype,
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,
"ompi_coll_tuned_gather_intra_dec_dynamic"));
/* Check first if an algorithm is set explicitly for this collective */
if (tuned_module->user_forced[GATHER].algorithm) {
return ompi_coll_tuned_gather_intra_do_this(sbuf, scount, sdtype,
rbuf, rcount, rdtype,
root, comm, module,
tuned_module->user_forced[GATHER].algorithm,
tuned_module->user_forced[GATHER].tree_fanout,
tuned_module->user_forced[GATHER].segsize);
}
/**
* check to see if we have some filebased rules.
*/
if (tuned_module->com_rules[GATHER]) {
int comsize, alg, faninout, segsize, max_requests;
size_t dsize;
comsize = ompi_comm_size(comm);
ompi_datatype_type_size (sdtype, &dsize);
dsize *= scount * comsize;
alg = ompi_coll_tuned_get_target_method_params (tuned_module->com_rules[GATHER],
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_gather_intra_do_this (sbuf, scount, sdtype,
rbuf, rcount, rdtype,
root, comm, module,
alg, faninout, segsize);
} /* found a method */
} /*end if any com rules to check */
return ompi_coll_tuned_gather_intra_dec_fixed (sbuf, scount, sdtype,
rbuf, rcount, rdtype,
root, comm, module);
}
int ompi_coll_tuned_scatter_intra_dec_dynamic(const void *sbuf, int scount,
struct ompi_datatype_t *sdtype,
void* rbuf, int rcount,
struct ompi_datatype_t *rdtype,
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,
"ompi_coll_tuned_scatter_intra_dec_dynamic"));
/* Check first if an algorithm is set explicitly for this collective */
if (tuned_module->user_forced[SCATTER].algorithm) {
return ompi_coll_tuned_scatter_intra_do_this(sbuf, scount, sdtype,
rbuf, rcount, rdtype,
root, comm, module,
tuned_module->user_forced[SCATTER].algorithm,
tuned_module->user_forced[SCATTER].chain_fanout,
tuned_module->user_forced[SCATTER].segsize);
}
/**
* check to see if we have some filebased rules.
*/
if (tuned_module->com_rules[SCATTER]) {
int comsize, alg, faninout, segsize, max_requests;
size_t dsize;
comsize = ompi_comm_size(comm);
ompi_datatype_type_size (sdtype, &dsize);
dsize *= scount * comsize;
alg = ompi_coll_tuned_get_target_method_params (tuned_module->com_rules[SCATTER],
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_scatter_intra_do_this (sbuf, scount, sdtype,
rbuf, rcount, rdtype,
root, comm, module,
alg, faninout, segsize);
} /* found a method */
} /*end if any com rules to check */
return ompi_coll_tuned_scatter_intra_dec_fixed (sbuf, scount, sdtype,
rbuf, rcount, rdtype,
root, comm, module);
}
int ompi_coll_tuned_exscan_intra_dec_dynamic(const void *sbuf, void* rbuf, int count,
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,
"ompi_coll_tuned_exscan_intra_dec_dynamic"));
/* Check first if an algorithm is set explicitly for this collective */
if (tuned_module->user_forced[EXSCAN].algorithm) {
return ompi_coll_tuned_exscan_intra_do_this(sbuf, rbuf, count, dtype,
op, comm, module,
tuned_module->user_forced[EXSCAN].algorithm);
}
/**
* check to see if we have some filebased rules.
*/
if (tuned_module->com_rules[EXSCAN]) {
int comsize, alg, faninout, segsize, max_requests;
size_t dsize;
comsize = ompi_comm_size(comm);
ompi_datatype_type_size (dtype, &dsize);
dsize *= comsize;
alg = ompi_coll_tuned_get_target_method_params (tuned_module->com_rules[EXSCAN],
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_exscan_intra_do_this (sbuf, rbuf, count, dtype,
op, comm, module,
alg);
} /* found a method */
} /*end if any com rules to check */
return ompi_coll_base_exscan_intra_linear(sbuf, rbuf, count, dtype,
op, comm, module);
}
int ompi_coll_tuned_scan_intra_dec_dynamic(const void *sbuf, void* rbuf, int count,
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,
"ompi_coll_tuned_scan_intra_dec_dynamic"));
/* Check first if an algorithm is set explicitly for this collective */
if (tuned_module->user_forced[SCAN].algorithm) {
return ompi_coll_tuned_scan_intra_do_this(sbuf, rbuf, count, dtype,
op, comm, module,
tuned_module->user_forced[SCAN].algorithm);
}
/**
* check to see if we have some filebased rules.
*/
if (tuned_module->com_rules[SCAN]) {
int comsize, alg, faninout, segsize, max_requests;
size_t dsize;
comsize = ompi_comm_size(comm);
ompi_datatype_type_size (dtype, &dsize);
dsize *= comsize;
alg = ompi_coll_tuned_get_target_method_params (tuned_module->com_rules[SCAN],
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_scan_intra_do_this (sbuf, rbuf, count, dtype,
op, comm, module,
alg);
} /* found a method */
} /*end if any com rules to check */
return ompi_coll_base_scan_intra_linear(sbuf, rbuf, count, dtype,
op, comm, module);
}
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