ESPResSo
Extensible Simulation Package for Research on Soft Matter Systems
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core/cuda/utils.hpp
Go to the documentation of this file.
1/*
2 * Copyright (C) 2021-2022 The ESPResSo project
3 *
4 * This file is part of ESPResSo.
5 *
6 * ESPResSo is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * ESPResSo is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20#pragma once
21
22#include "config/config.hpp"
23
24#ifdef CUDA
25
26#include <exception>
27#include <stdexcept>
28#include <string>
29
30/**
31 * @brief Wrapper for CUDA runtime exceptions.
32 * When the exception cannot be recovered from,
33 * prefer using @ref cuda_fatal_error instead.
34 */
35class cuda_runtime_error : public std::runtime_error {
36public:
37 cuda_runtime_error(std::string const &msg) : std::runtime_error(msg) {}
38};
39
40/**
41 * @brief Fatal CUDA exception.
42 * Best course of action is to terminate the program immediately.
43 */
44
46 std::string m_msg;
47 std::terminate_handler m_terminate_handler;
48
49public:
50 explicit cuda_fatal_error(std::string msg);
51
53
54 auto get_terminate() noexcept { return m_terminate_handler; }
55
56 auto set_terminate(std::terminate_handler callback) noexcept {
57 auto old_handler = m_terminate_handler;
58 m_terminate_handler = callback;
59 return old_handler;
60 }
61
62 void terminate() noexcept;
63
64 char const *what() const noexcept { return m_msg.c_str(); }
65};
66
67/**
68 * @brief Invoke a function and silently ignore any thrown
69 * @ref cuda_runtime_error error.
70 * This is useful when querying the properties of CUDA devices that may
71 * not have a suitable CUDA version, or when there is no compatible CUDA
72 * device available.
73 */
74template <class F, class... Args>
75void invoke_skip_cuda_exceptions(F &&f, Args &&...args) {
76 try {
77 return f(args...);
78 } catch (cuda_runtime_error const &) { // NOLINT(bugprone-empty-catch)
79 // pass
80 }
81}
82
83#endif // CUDA
Fatal CUDA exception.
char const * what() const noexcept
auto get_terminate() noexcept
void terminate() noexcept
auto set_terminate(std::terminate_handler callback) noexcept
Wrapper for CUDA runtime exceptions.
cuda_runtime_error(std::string const &msg)
This file contains the defaults for ESPResSo.
void invoke_skip_cuda_exceptions(F &&f, Args &&...args)
Invoke a function and silently ignore any thrown cuda_runtime_error error.