StarPU Handbook
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starpu_disk.h
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1/* StarPU --- Runtime system for heterogeneous multicore architectures.
2 *
3 * Copyright (C) 2013-2024 Université de Bordeaux, CNRS (LaBRI UMR 5800), Inria
4 * Copyright (C) 2013 Corentin Salingue
5 *
6 * StarPU is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU Lesser General Public License as published by
8 * the Free Software Foundation; either version 2.1 of the License, or (at
9 * your option) any later version.
10 *
11 * StarPU is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
14 *
15 * See the GNU Lesser General Public License in COPYING.LGPL for more details.
16 */
17
18#ifndef __STARPU_DISK_H__
19#define __STARPU_DISK_H__
20
21#include <sys/types.h>
22#include <starpu_config.h>
23
24#ifdef __cplusplus
25extern "C" {
26#endif
27
37{
42 void *(*plug)(void *parameter, starpu_ssize_t size);
46 void (*unplug)(void *base);
47
52 int (*bandwidth)(unsigned node, void *base);
53
57 void *(*alloc)(void *base, size_t size);
58
62 void (*free)(void *base, void *obj, size_t size);
63
67 void *(*open)(void *base, void *pos, size_t size);
71 void (*close)(void *base, void *obj, size_t size);
72
77 int (*read)(void *base, void *obj, void *buf, off_t offset, size_t size);
81 int (*write)(void *base, void *obj, const void *buf, off_t offset, size_t size);
82
86 int (*full_read)(void *base, void *obj, void **ptr, size_t *size, unsigned dst_node);
91 int (*full_write)(void *base, void *obj, void *ptr, size_t size);
92
98 void *(*async_write)(void *base, void *obj, void *buf, off_t offset, size_t size);
104 void *(*async_read)(void *base, void *obj, void *buf, off_t offset, size_t size);
105
109 void *(*async_full_read)(void *base, void *obj, void **ptr, size_t *size, unsigned dst_node);
114 void *(*async_full_write)(void *base, void *obj, void *ptr, size_t size);
115
122 void *(*copy)(void *base_src, void *obj_src, off_t offset_src, void *base_dst, void *obj_dst, off_t offset_dst, size_t size);
123
128 void (*wait_request)(void *async_channel);
133 int (*test_request)(void *async_channel);
134
138 void (*free_request)(void *async_channel);
139
140 /* TODO: readv, writev, read2d, write2d, etc. */
141};
142
151
162
169
178
184
188void starpu_disk_close(unsigned node, void *obj, size_t size);
189
196void *starpu_disk_open(unsigned node, void *pos, size_t size);
197
210int starpu_disk_register(struct starpu_disk_ops *func, void *parameter, starpu_ssize_t size);
211
216#define STARPU_DISK_SIZE_MIN (16 * 1024 * 1024)
217
222extern int starpu_disk_swap_node;
223
226#ifdef __cplusplus
227}
228#endif
229
230#endif /* __STARPU_DISK_H__ */
void(* close)(void *base, void *obj, size_t size)
Definition starpu_disk.h:71
int(* read)(void *base, void *obj, void *buf, off_t offset, size_t size)
Definition starpu_disk.h:77
void(* free)(void *base, void *obj, size_t size)
Definition starpu_disk.h:62
int(* full_write)(void *base, void *obj, void *ptr, size_t size)
Definition starpu_disk.h:91
int(* test_request)(void *async_channel)
Definition starpu_disk.h:133
int(* bandwidth)(unsigned node, void *base)
Definition starpu_disk.h:52
int(* full_read)(void *base, void *obj, void **ptr, size_t *size, unsigned dst_node)
Definition starpu_disk.h:86
void(* unplug)(void *base)
Definition starpu_disk.h:46
void(* free_request)(void *async_channel)
Definition starpu_disk.h:138
void(* wait_request)(void *async_channel)
Definition starpu_disk.h:128
int(* write)(void *base, void *obj, const void *buf, off_t offset, size_t size)
Definition starpu_disk.h:81
struct starpu_disk_ops starpu_disk_stdio_ops
struct starpu_disk_ops starpu_disk_unistd_o_direct_ops
void starpu_disk_close(unsigned node, void *obj, size_t size)
struct starpu_disk_ops starpu_disk_unistd_ops
int starpu_disk_swap_node
int starpu_disk_register(struct starpu_disk_ops *func, void *parameter, starpu_ssize_t size)
struct starpu_disk_ops starpu_disk_leveldb_ops
struct starpu_disk_ops starpu_disk_hdf5_ops
void * starpu_disk_open(unsigned node, void *pos, size_t size)
Definition starpu_disk.h:37