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OpenMPI
0.1.1
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#include "ompi_config.h"#include "ompi/constants.h"#include "ompi/communicator/communicator.h"#include "coll_sm.h"Functions | |
| int | mca_coll_sm_allreduce_intra (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) |
| Shared memory allreduce. More... | |
| int mca_coll_sm_allreduce_intra | ( | 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 | ||
| ) |
Shared memory allreduce.
For the moment, all we're doing is a reduce to root==0 and then a broadcast. It is possible that we'll do something better someday.
References mca_coll_sm_bcast_intra(), and mca_coll_sm_reduce_intra().