StarPU Internal Handbook
disk.h
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1 /* StarPU --- Runtime system for heterogeneous multicore architectures.
2  *
3  * Copyright (C) 2013-2021 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 __DISK_H__
19 #define __DISK_H__
20 
23 #define STARPU_DISK_ALL 1
24 #define STARPU_DISK_NO_RECLAIM 2
25 
26 #ifdef __cplusplus
27 extern "C"
28 {
29 #endif
30 
31 #include <datawizard/copy_driver.h>
32 #include <datawizard/malloc.h>
33 
34 #pragma GCC visibility push(hidden)
35 
37 void * _starpu_disk_alloc (unsigned node, size_t size) STARPU_ATTRIBUTE_MALLOC;
38 
39 void _starpu_disk_free (unsigned node, void *obj, size_t size);
41 int _starpu_disk_read(unsigned src_node, unsigned dst_node, void *obj, void *buf, off_t offset, size_t size, struct _starpu_async_channel * async_channel);
43 int _starpu_disk_write(unsigned src_node, unsigned dst_node, void *obj, void *buf, off_t offset, size_t size, struct _starpu_async_channel * async_channel);
44 
45 int _starpu_disk_full_read(unsigned src_node, unsigned dst_node, void * obj, void ** ptr, size_t * size, struct _starpu_async_channel * async_channel);
46 int _starpu_disk_full_write(unsigned src_node, unsigned dst_node, void * obj, void * ptr, size_t size, struct _starpu_async_channel * async_channel);
47 
48 int _starpu_disk_copy(unsigned node_src, void* obj_src, off_t offset_src, unsigned node_dst, void* obj_dst, off_t offset_dst, size_t size, struct _starpu_async_channel * async_channel);
49 
51 void starpu_disk_wait_request(struct _starpu_async_channel *async_channel);
54 void starpu_disk_free_request(struct _starpu_async_channel *async_channel);
55 
57 int _starpu_disk_can_copy(unsigned node1, unsigned node2);
58 
60 void _starpu_set_disk_flag(unsigned node, int flag);
61 int _starpu_get_disk_flag(unsigned node);
62 
65 
66 void _starpu_swap_init(void);
67 
68 static inline struct _starpu_disk_event *_starpu_disk_get_event(union _starpu_async_channel_event *_event)
69 {
70  struct _starpu_disk_event *event;
71  STARPU_STATIC_ASSERT(sizeof(*event) <= sizeof(*_event));
72  event = (struct _starpu_disk_event *) _event;
73  return event;
74 }
75 
76 #ifdef __cplusplus
77 }
78 #endif
79 
80 #pragma GCC visibility pop
81 
82 #endif /* __DISK_H__ */
Definition: copy_driver.h:71
Definition: copy_driver.h:53
Definition: copy_driver.h:66
int starpu_disk_test_request(struct _starpu_async_channel *async_channel)
int _starpu_disk_write(unsigned src_node, unsigned dst_node, void *obj, void *buf, off_t offset, size_t size, struct _starpu_async_channel *async_channel)
void _starpu_set_disk_flag(unsigned node, int flag)
void starpu_disk_wait_request(struct _starpu_async_channel *async_channel)
void * _starpu_disk_alloc(unsigned node, size_t size) STARPU_ATTRIBUTE_MALLOC
void _starpu_disk_unregister(void)
int _starpu_disk_can_copy(unsigned node1, unsigned node2)
int _starpu_disk_read(unsigned src_node, unsigned dst_node, void *obj, void *buf, off_t offset, size_t size, struct _starpu_async_channel *async_channel)