a552921171
The free list code called the constructor for each object it slab allocated in ompi_free_list_grow. This permits free list-managed elements to safely allocate/deallocate resources in their constructors/destructors without leaking. It's probably best to let this soak on the trunk a little while before moving it over to v1.7. Reviewed-by: bosilca cmr=v1.7.4:reviewer=bosilca This commit was SVN r29096.
302 строки
11 KiB
C
302 строки
11 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
|
|
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2009 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) 2006-2007 Mellanox Technologies. All rights reserved.
|
|
* Copyright (c) 2010-2013 Cisco Systems, Inc. All rights reserved.
|
|
* Copyright (c) 2011 NVIDIA Corporation. All rights reserved.
|
|
* Copyright (c) 2012 Los Alamos National Security, LLC. All rights
|
|
* reserved.
|
|
* $COPYRIGHT$
|
|
*
|
|
* Additional copyrights may follow
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#include "ompi_config.h"
|
|
|
|
#include "ompi/class/ompi_free_list.h"
|
|
#include "opal/align.h"
|
|
#include "opal/util/output.h"
|
|
#include "ompi/mca/mpool/mpool.h"
|
|
|
|
static void ompi_free_list_construct(ompi_free_list_t* fl);
|
|
static void ompi_free_list_destruct(ompi_free_list_t* fl);
|
|
|
|
OBJ_CLASS_INSTANCE(ompi_free_list_t, opal_atomic_lifo_t,
|
|
ompi_free_list_construct, ompi_free_list_destruct);
|
|
|
|
typedef struct ompi_free_list_item_t ompi_free_list_memory_t;
|
|
|
|
OBJ_CLASS_INSTANCE(ompi_free_list_item_t,
|
|
opal_list_item_t,
|
|
NULL, NULL);
|
|
|
|
static void ompi_free_list_construct(ompi_free_list_t* fl)
|
|
{
|
|
OBJ_CONSTRUCT(&fl->fl_lock, opal_mutex_t);
|
|
OBJ_CONSTRUCT(&fl->fl_condition, opal_condition_t);
|
|
fl->fl_max_to_alloc = 0;
|
|
fl->fl_num_allocated = 0;
|
|
fl->fl_num_per_alloc = 0;
|
|
fl->fl_num_waiting = 0;
|
|
fl->fl_frag_size = sizeof(ompi_free_list_item_t);
|
|
fl->fl_frag_alignment = 0;
|
|
fl->fl_payload_buffer_size=0;
|
|
fl->fl_payload_buffer_alignment=0;
|
|
fl->fl_frag_class = OBJ_CLASS(ompi_free_list_item_t);
|
|
fl->fl_mpool = 0;
|
|
fl->ctx = NULL;
|
|
OBJ_CONSTRUCT(&(fl->fl_allocations), opal_list_t);
|
|
}
|
|
|
|
static void ompi_free_list_destruct(ompi_free_list_t* fl)
|
|
{
|
|
opal_list_item_t *item;
|
|
ompi_free_list_item_t *fl_item;
|
|
ompi_free_list_memory_t *fl_mem;
|
|
|
|
#if 0 && OPAL_ENABLE_DEBUG
|
|
if(opal_list_get_size(&fl->super) != fl->fl_num_allocated) {
|
|
opal_output(0, "ompi_free_list: %d allocated %d returned: %s:%d\n",
|
|
fl->fl_num_allocated, opal_list_get_size(&fl->super),
|
|
fl->super.super.cls_init_file_name, fl->super.super.cls_init_lineno);
|
|
}
|
|
#endif
|
|
|
|
while(NULL != (item = opal_atomic_lifo_pop(&(fl->super)))) {
|
|
fl_item = (ompi_free_list_item_t*)item;
|
|
|
|
/* destruct the item (we constructed it), the underlying memory will be
|
|
* reclaimed when we free the slab (ompi_free_list_memory_t ptr)
|
|
* containing it */
|
|
OBJ_DESTRUCT(fl_item);
|
|
}
|
|
|
|
while(NULL != (item = opal_list_remove_first(&(fl->fl_allocations)))) {
|
|
fl_mem = (ompi_free_list_memory_t*)item;
|
|
|
|
if( NULL != fl->fl_mpool ) {
|
|
fl->fl_mpool->mpool_free(fl->fl_mpool, fl_mem->ptr,
|
|
fl_mem->registration);
|
|
} else if (fl_mem->ptr) {
|
|
free (fl_mem->ptr);
|
|
}
|
|
|
|
/* destruct the item (we constructed it), then free the memory chunk */
|
|
OBJ_DESTRUCT(item);
|
|
free(item);
|
|
}
|
|
|
|
OBJ_DESTRUCT(&fl->fl_allocations);
|
|
OBJ_DESTRUCT(&fl->fl_condition);
|
|
OBJ_DESTRUCT(&fl->fl_lock);
|
|
}
|
|
|
|
int ompi_free_list_init_ex(
|
|
ompi_free_list_t *flist,
|
|
size_t elem_size,
|
|
size_t alignment,
|
|
opal_class_t* elem_class,
|
|
int num_elements_to_alloc,
|
|
int max_elements_to_alloc,
|
|
int num_elements_per_alloc,
|
|
mca_mpool_base_module_t* mpool,
|
|
ompi_free_list_item_init_fn_t item_init,
|
|
void* ctx)
|
|
{
|
|
/* alignment must be more than zero and power of two */
|
|
if(alignment <= 1 || (alignment & (alignment - 1)))
|
|
return OMPI_ERROR;
|
|
|
|
if(elem_size > flist->fl_frag_size)
|
|
flist->fl_frag_size = elem_size;
|
|
flist->fl_frag_alignment = alignment;
|
|
if(elem_class)
|
|
flist->fl_frag_class = elem_class;
|
|
flist->fl_payload_buffer_size=flist->fl_frag_size-
|
|
flist->fl_frag_class->cls_sizeof;
|
|
flist->fl_payload_buffer_alignment=alignment;
|
|
flist->fl_max_to_alloc = max_elements_to_alloc;
|
|
flist->fl_num_allocated = 0;
|
|
flist->fl_num_per_alloc = num_elements_per_alloc;
|
|
flist->fl_mpool = mpool;
|
|
flist->item_init = item_init;
|
|
flist->ctx = ctx;
|
|
if(num_elements_to_alloc)
|
|
return ompi_free_list_grow(flist, num_elements_to_alloc);
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
/* this will replace ompi_free_list_init_ex */
|
|
int ompi_free_list_init_ex_new(
|
|
ompi_free_list_t *flist,
|
|
size_t frag_size,
|
|
size_t frag_alignment,
|
|
opal_class_t* frag_class,
|
|
size_t payload_buffer_size,
|
|
size_t payload_buffer_alignment,
|
|
int num_elements_to_alloc,
|
|
int max_elements_to_alloc,
|
|
int num_elements_per_alloc,
|
|
mca_mpool_base_module_t* mpool,
|
|
ompi_free_list_item_init_fn_t item_init,
|
|
void* ctx)
|
|
{
|
|
/* alignment must be more than zero and power of two */
|
|
if (frag_alignment <= 1 || (frag_alignment & (frag_alignment - 1)))
|
|
return OMPI_ERROR;
|
|
if (0 < payload_buffer_size) {
|
|
if (payload_buffer_alignment <= 1 || (payload_buffer_alignment & (payload_buffer_alignment - 1)))
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
if (frag_size > flist->fl_frag_size)
|
|
flist->fl_frag_size = frag_size;
|
|
if (frag_class)
|
|
flist->fl_frag_class = frag_class;
|
|
flist->fl_payload_buffer_size=payload_buffer_size;
|
|
flist->fl_max_to_alloc = max_elements_to_alloc;
|
|
flist->fl_num_allocated = 0;
|
|
flist->fl_num_per_alloc = num_elements_per_alloc;
|
|
flist->fl_mpool = mpool;
|
|
flist->fl_frag_alignment = frag_alignment;
|
|
flist->fl_payload_buffer_alignment = payload_buffer_alignment;
|
|
flist->item_init = item_init;
|
|
flist->ctx = ctx;
|
|
if (num_elements_to_alloc)
|
|
return ompi_free_list_grow(flist, num_elements_to_alloc);
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
int ompi_free_list_grow(ompi_free_list_t* flist, size_t num_elements)
|
|
{
|
|
unsigned char *ptr, *mpool_alloc_ptr = NULL, *payload_ptr = NULL;
|
|
ompi_free_list_memory_t *alloc_ptr;
|
|
size_t i, alloc_size, head_size, elem_size = 0;
|
|
mca_mpool_base_registration_t *reg = NULL;
|
|
|
|
if(flist->fl_max_to_alloc > 0)
|
|
if(flist->fl_num_allocated + num_elements > flist->fl_max_to_alloc)
|
|
num_elements = flist->fl_max_to_alloc - flist->fl_num_allocated;
|
|
|
|
if(num_elements == 0)
|
|
return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
|
|
head_size = (NULL == flist->fl_mpool) ? flist->fl_frag_size:
|
|
flist->fl_frag_class->cls_sizeof;
|
|
head_size = OPAL_ALIGN(head_size, flist->fl_frag_alignment, size_t);
|
|
|
|
/* calculate head allocation size */
|
|
alloc_size = num_elements * head_size + sizeof(ompi_free_list_memory_t) +
|
|
flist->fl_frag_alignment;
|
|
|
|
alloc_ptr = (ompi_free_list_memory_t*)malloc(alloc_size);
|
|
|
|
if(NULL == alloc_ptr)
|
|
return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
|
|
if (0 != flist->fl_payload_buffer_size) {
|
|
elem_size = OPAL_ALIGN(flist->fl_payload_buffer_size,
|
|
flist->fl_payload_buffer_alignment, size_t);
|
|
|
|
/* elem_size should not be 0 here */
|
|
assert (elem_size > 0);
|
|
|
|
/* allocate the rest from the mpool (or use memalign/malloc) */
|
|
if(flist->fl_mpool != NULL) {
|
|
payload_ptr = mpool_alloc_ptr =
|
|
(unsigned char *) flist->fl_mpool->mpool_alloc(flist->fl_mpool,
|
|
num_elements * elem_size,
|
|
flist->fl_payload_buffer_alignment,
|
|
MCA_MPOOL_FLAGS_CACHE_BYPASS |
|
|
MCA_MPOOL_FLAGS_CUDA_REGISTER_MEM, ®);
|
|
} else {
|
|
#ifdef HAVE_POSIX_MEMALIGN
|
|
posix_memalign ((void **) &mpool_alloc_ptr, flist->fl_payload_buffer_alignment,
|
|
num_elements * elem_size);
|
|
payload_ptr = mpool_alloc_ptr;
|
|
#else
|
|
mpool_alloc_ptr = (unsigned char *) malloc (num_elements * elem_size +
|
|
flist->fl_payload_buffer_alignment);
|
|
payload_ptr = (unsigned char *) OPAL_ALIGN((uintptr_t)mpool_alloc_ptr,
|
|
flist->fl_payload_buffer_alignment,
|
|
uintptr_t);
|
|
#endif
|
|
}
|
|
|
|
if(NULL == mpool_alloc_ptr) {
|
|
free(alloc_ptr);
|
|
return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
|
|
}
|
|
}
|
|
|
|
/* make the alloc_ptr a list item, save the chunk in the allocations list,
|
|
* and have ptr point to memory right after the list item structure */
|
|
OBJ_CONSTRUCT(alloc_ptr, ompi_free_list_item_t);
|
|
opal_list_append(&(flist->fl_allocations), (opal_list_item_t*)alloc_ptr);
|
|
|
|
alloc_ptr->registration = reg;
|
|
alloc_ptr->ptr = mpool_alloc_ptr;
|
|
|
|
ptr = (unsigned char*)alloc_ptr + sizeof(ompi_free_list_memory_t);
|
|
ptr = OPAL_ALIGN_PTR(ptr, flist->fl_frag_alignment, unsigned char*);
|
|
|
|
for(i=0; i<num_elements; i++) {
|
|
ompi_free_list_item_t* item = (ompi_free_list_item_t*)ptr;
|
|
item->registration = reg;
|
|
item->ptr = payload_ptr;
|
|
|
|
OBJ_CONSTRUCT_INTERNAL(item, flist->fl_frag_class);
|
|
|
|
/* run the initialize function if present */
|
|
if(flist->item_init) {
|
|
flist->item_init(item, flist->ctx);
|
|
}
|
|
|
|
opal_atomic_lifo_push(&(flist->super), &(item->super));
|
|
ptr += head_size;
|
|
payload_ptr += elem_size;
|
|
|
|
}
|
|
flist->fl_num_allocated += num_elements;
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* This function resize the free_list to contain at least the specified
|
|
* number of elements. We do not create all of them in the same memory
|
|
* segment. Instead we will several time the fl_num_per_alloc elements
|
|
* until we reach the required number of the maximum allowed by the
|
|
* initialization.
|
|
*/
|
|
int
|
|
ompi_free_list_resize_mt(ompi_free_list_t* flist, size_t size)
|
|
{
|
|
ssize_t inc_num;
|
|
int ret = OMPI_SUCCESS;
|
|
|
|
if (flist->fl_num_allocated > size) {
|
|
return OMPI_SUCCESS;
|
|
}
|
|
OPAL_THREAD_LOCK(&((flist)->fl_lock));
|
|
inc_num = (ssize_t)size - (ssize_t)flist->fl_num_allocated;
|
|
while( inc_num > 0 ) {
|
|
ret = ompi_free_list_grow(flist, flist->fl_num_per_alloc);
|
|
if( OMPI_SUCCESS != ret ) break;
|
|
inc_num = (ssize_t)size - (ssize_t)flist->fl_num_allocated;
|
|
}
|
|
OPAL_THREAD_UNLOCK(&((flist)->fl_lock));
|
|
|
|
return ret;
|
|
}
|