StarPU Internal Handbook

driver_cuda.h
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1/* StarPU --- Runtime system for heterogeneous multicore architectures.
2 *
3 * Copyright (C) 2008-2021 Université de Bordeaux, CNRS (LaBRI UMR 5800), Inria
4 * Copyright (C) 2015 Mathieu Lirzin
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 __DRIVER_CUDA_H__
19#define __DRIVER_CUDA_H__
20
23#include <common/config.h>
24
25#ifdef STARPU_USE_CUDA
26#include <cuda.h>
27#include <cuda_runtime_api.h>
28#include <cublas.h>
29#ifdef STARPU_HAVE_LIBNVIDIA_ML
30#include <nvml.h>
31#endif
32#endif
33
34#include <starpu.h>
35#include <core/workers.h>
36#include <datawizard/node_ops.h>
37
38 extern struct _starpu_driver_ops _starpu_driver_cuda_ops;
39 extern struct _starpu_node_ops _starpu_driver_cuda_node_ops;
40
41 void _starpu_cuda_init(void);
42 unsigned _starpu_get_cuda_device_count(void);
43 extern int _starpu_cuda_bus_ids[STARPU_MAXCUDADEVS+STARPU_MAXNUMANODES][STARPU_MAXCUDADEVS+STARPU_MAXNUMANODES];
44
45#if defined(STARPU_USE_CUDA) || defined(STARPU_SIMGRID)
46 void _starpu_cuda_discover_devices (struct _starpu_machine_config *);
47 void _starpu_init_cuda(void);
48 void *_starpu_cuda_worker(void *);
49#ifdef STARPU_HAVE_LIBNVIDIA_ML
50nvmlDevice_t _starpu_cuda_get_nvmldev(struct cudaDeviceProp *props);
51#endif
52#else
53# define _starpu_cuda_discover_devices(config) ((void) config)
54#endif
55
56#ifdef STARPU_USE_CUDA
57cudaStream_t starpu_cuda_get_local_in_transfer_stream(void);
58cudaStream_t starpu_cuda_get_in_transfer_stream(unsigned dst_node);
59cudaStream_t starpu_cuda_get_local_out_transfer_stream(void);
60cudaStream_t starpu_cuda_get_out_transfer_stream(unsigned src_node);
61cudaStream_t starpu_cuda_get_peer_transfer_stream(unsigned src_node, unsigned dst_node);
62#endif
63
64 unsigned _starpu_cuda_test_request_completion(struct _starpu_async_channel *async_channel);
65 void _starpu_cuda_wait_request_completion(struct _starpu_async_channel *async_channel);
66
67 int _starpu_cuda_copy_interface_from_cpu_to_cuda(starpu_data_handle_t handle, void *src_interface, unsigned src_node, void *dst_interface, unsigned dst_node, struct _starpu_data_request *req);
68 int _starpu_cuda_copy_interface_from_cuda_to_cuda(starpu_data_handle_t handle, void *src_interface, unsigned src_node, void *dst_interface, unsigned dst_node, struct _starpu_data_request *req);
69 int _starpu_cuda_copy_interface_from_cuda_to_cpu(starpu_data_handle_t handle, void *src_interface, unsigned src_node, void *dst_interface, unsigned dst_node, struct _starpu_data_request *req);
70
71 int _starpu_cuda_copy_data_from_cuda_to_cuda(uintptr_t src, size_t src_offset, unsigned src_node, uintptr_t dst, size_t dst_offset, unsigned dst_node, size_t size, struct _starpu_async_channel *async_channel);
72 int _starpu_cuda_copy_data_from_cuda_to_cpu(uintptr_t src, size_t src_offset, unsigned src_node, uintptr_t dst, size_t dst_offset, unsigned dst_node, size_t size, struct _starpu_async_channel *async_channel);
73 int _starpu_cuda_copy_data_from_cpu_to_cuda(uintptr_t src, size_t src_offset, unsigned src_node, uintptr_t dst, size_t dst_offset, unsigned dst_node, size_t size, struct _starpu_async_channel *async_channel);
74
75 int _starpu_cuda_copy2d_data_from_cuda_to_cuda(uintptr_t src, size_t src_offset, unsigned src_node, uintptr_t dst, size_t dst_offset, unsigned dst_node, size_t blocksize, size_t numblocks, size_t ld_src, size_t ld_dst, struct _starpu_async_channel *async_channel);
76 int _starpu_cuda_copy2d_data_from_cuda_to_cpu(uintptr_t src, size_t src_offset, unsigned src_node, uintptr_t dst, size_t dst_offset, unsigned dst_node, size_t blocksize, size_t numblocks, size_t ld_src, size_t ld_dst, struct _starpu_async_channel *async_channel);
77 int _starpu_cuda_copy2d_data_from_cpu_to_cuda(uintptr_t src, size_t src_offset, unsigned src_node, uintptr_t dst, size_t dst_offset, unsigned dst_node, size_t blocksize, size_t numblocks, size_t ld_src, size_t ld_dst, struct _starpu_async_channel *async_channel);
78
79 int _starpu_cuda_copy3d_data_from_cuda_to_cuda(uintptr_t src, size_t src_offset, unsigned src_node, uintptr_t dst, size_t dst_offset, unsigned dst_node, size_t blocksize, size_t numblocks_1, size_t ld1_src, size_t ld1_dst, size_t numblocks_2, size_t ld2_src, size_t ld2_dst, struct _starpu_async_channel *async_channel);
80 int _starpu_cuda_copy3d_data_from_cuda_to_cpu(uintptr_t src, size_t src_offset, unsigned src_node, uintptr_t dst, size_t dst_offset, unsigned dst_node, size_t blocksize, size_t numblocks_1, size_t ld1_src, size_t ld1_dst, size_t numblocks_2, size_t ld2_src, size_t ld2_dst, struct _starpu_async_channel *async_channel);
81 int _starpu_cuda_copy3d_data_from_cpu_to_cuda(uintptr_t src, size_t src_offset, unsigned src_node, uintptr_t dst, size_t dst_offset, unsigned dst_node, size_t blocksize, size_t numblocks_1, size_t ld1_src, size_t ld1_dst, size_t numblocks_2, size_t ld2_src, size_t ld2_dst, struct _starpu_async_channel *async_channel);
82
83 int _starpu_cuda_is_direct_access_supported(unsigned node, unsigned handling_node);
84uintptr_t _starpu_cuda_malloc_on_node(unsigned dst_node, size_t size, int flags);
85 void _starpu_cuda_free_on_node(unsigned dst_node, uintptr_t addr, size_t size, int flags);
86
87#endif // __DRIVER_CUDA_H__
88
_starpu_async_channel
Definition: copy_driver.h:127
node_ops.h
_starpu_driver_ops
Definition: drivers.h:24
_starpu_machine_config
Definition: workers.h:352
_starpu_node_ops
Definition: node_ops.h:48