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1//===--- Configuration.h - OpenMP device configuration interface -- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// API to query the global (constant) device environment.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef OMPTARGET_CONFIGURATION_H
14#define OMPTARGET_CONFIGURATION_H
15
16#include "Shared/Environment.h"
17
18#include "DeviceTypes.h"
19
20namespace ompx {
21namespace config {
22
23/// Return the number of devices in the system, same number as returned on the
24/// host by omp_get_num_devices.
25uint32_t getNumDevices();
26
27/// Return the device number in the system for omp_get_device_num.
28uint32_t getDeviceNum();
29
30/// Return the user chosen debug level.
31uint32_t getDebugKind();
32
33/// Return if teams oversubscription is assumed
34uint32_t getAssumeTeamsOversubscription();
35
36/// Return if threads oversubscription is assumed
37uint32_t getAssumeThreadsOversubscription();
38
39/// Return the amount of dynamic shared memory that was allocated at launch.
40uint64_t getDynamicMemorySize();
41
42/// Returns the cycles per second of the device's fixed frequency clock.
43uint64_t getClockFrequency();
44
45/// Returns the pointer to the beginning of the indirect call table.
46void *getIndirectCallTablePtr();
47
48/// Returns the size of the indirect call table.
49uint64_t getIndirectCallTableSize();
50
51/// Returns the size of the indirect call table.
52uint64_t getHardwareParallelism();
53
54/// Return if debugging is enabled for the given debug kind.
55bool isDebugMode(DeviceDebugKind Level);
56
57/// Indicates if this kernel may require thread-specific states, or if it was
58/// explicitly disabled by the user.
59bool mayUseThreadStates();
60
61/// Indicates if this kernel may require data environments for nested
62/// parallelism, or if it was explicitly disabled by the user.
63bool mayUseNestedParallelism();
64
65} // namespace config
66} // namespace ompx
67
68#endif
69

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source code of offload/DeviceRTL/include/Configuration.h