533633b8cb
* Various cosmetic/style updates in the btl sm
* Clean up concept of mpool module (I think that code was written way
back when the concept of "modules" was fuzzy)
* Bring over some old fixes from the /tmp/timattox-sm-coll/ tree to
fix potential segv's when mmap'ed regions were at different
addresses in different processes (thanks Tim!).
* Change sm coll to no longer use mpool as its main source of shmem;
rather, just mmap its own segment (because it's fixed size --
there was nothing to be gained by using mpool; shedding the use of
mpool saved a lot of complexity in the sm coll setup). This
effectively made Tim's fixes moot (because now everything is an
offset into the mmap that is computed locally; there are no global
pointers). :-)
* Slightly updated common/sm to allow making mmap's for a specific
set of procs (vs. ''all'' procs in the process). This potentially
allows for same-host-inter-proc mmaps -- yay!
* Fixed many, many things in the coll sm (particularly in reduce):
* Fixed handling of MPI_IN_PLACE in reduce and allreduce
* Fixed handling of non-contiguous datatypes in reduce
* Changed the order of reductions to go from process (n-1)'s data
to process 0's data, because that's how all other OMPI coll
components work
* Fixed lots of usage of ddt functions
* When using a non-contiguous datatype, if the root process is not
(n-1), now we used a 2nd convertor to copy from shmem to the rbuf
(saves a memory copy vs. what was done before)
* Lots and lots of little cleanups, clarifications, and minor
optimizations (although still more could be done -- e.g., I think
the use of write memory barriers is fairly sub-optimal; they
could be ganged together at the root, for example)
I'm marking this as "fixes trac:1988" and closing the ticket; if something
is still broken, we can re-open the ticket.
This commit was SVN r21967.
The following Trac tickets were found above:
Ticket 1988 --> https://svn.open-mpi.org/trac/ompi/ticket/1988
109 строки
2.8 KiB
C
109 строки
2.8 KiB
C
/*
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* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2006 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
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* Copyright (c) 2009 Cisco Systems, Inc. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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/**
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* @file
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*/
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#ifndef MCA_MPOOL_SM_H
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#define MCA_MPOOL_SM_H
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#include "ompi_config.h"
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#include "opal/event/event.h"
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#include "ompi/mca/common/sm/common_sm_mmap.h"
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#include "ompi/mca/mpool/mpool.h"
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#include "ompi/mca/allocator/allocator.h"
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BEGIN_C_DECLS
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struct mca_mpool_sm_component_t {
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mca_mpool_base_component_t super;
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/* mca_allocator_base_module_t* sm_allocator; */
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char* sm_allocator_name;
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int verbose;
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/* struct mca_mpool_sm_mmap_t *sm_mmap; */
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};
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typedef struct mca_mpool_sm_component_t mca_mpool_sm_component_t;
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typedef struct mca_mpool_base_resources_t {
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size_t size;
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int32_t mem_node;
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} mca_mpool_base_resources_t;
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OMPI_MODULE_DECLSPEC extern mca_mpool_sm_component_t mca_mpool_sm_component;
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typedef struct mca_mpool_sm_module_t {
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mca_mpool_base_module_t super;
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long sm_size;
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mca_allocator_base_module_t * sm_allocator;
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struct mca_mpool_sm_mmap_t *sm_mmap;
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mca_common_sm_mmap_t *sm_common_mmap;
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int32_t mem_node;
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} mca_mpool_sm_module_t;
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/*
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* Initializes the mpool module.
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*/
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void mca_mpool_sm_module_init(mca_mpool_sm_module_t* mpool);
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/*
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* Returns base address of shared memory mapping.
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*/
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void* mca_mpool_sm_base(mca_mpool_base_module_t*);
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/**
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* Allocate block of shared memory.
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*/
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void* mca_mpool_sm_alloc(
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mca_mpool_base_module_t* mpool,
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size_t size,
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size_t align,
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uint32_t flags,
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mca_mpool_base_registration_t** registration);
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/**
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* realloc function typedef
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*/
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void* mca_mpool_sm_realloc(
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mca_mpool_base_module_t* mpool,
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void* addr,
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size_t size,
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mca_mpool_base_registration_t** registration);
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/**
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* free function typedef
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*/
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void mca_mpool_sm_free(
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mca_mpool_base_module_t* mpool,
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void * addr,
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mca_mpool_base_registration_t* registration);
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/**
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* Fault Tolerance Event Notification Function
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* @param state Checkpoint Stae
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* @return OMPI_SUCCESS or failure status
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*/
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int mca_mpool_sm_ft_event(int state);
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END_C_DECLS
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#endif
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