1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
|
##===----------------------------------------------------------------------===##
#
# Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
# See https://llvm.org/LICENSE.txt for license information.
# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#
##===----------------------------------------------------------------------===##
#
# Build a plugin for a CUDA machine if available.
#
##===----------------------------------------------------------------------===##
set(LIBOMPTARGET_BUILD_CUDA_PLUGIN TRUE CACHE BOOL
"Whether to build CUDA plugin")
if (NOT LIBOMPTARGET_BUILD_CUDA_PLUGIN)
libomptarget_say("Not building CUDA offloading plugin: LIBOMPTARGET_BUILD_CUDA_PLUGIN is false")
return()
endif()
if (NOT(CMAKE_SYSTEM_PROCESSOR MATCHES "(x86_64)|(ppc64le)|(aarch64)$" AND CMAKE_SYSTEM_NAME MATCHES "Linux"))
libomptarget_say("Not building CUDA offloading plugin: only support CUDA in Linux x86_64, ppc64le, or aarch64 hosts.")
return()
elseif (NOT LIBOMPTARGET_DEP_LIBELF_FOUND)
libomptarget_say("Not building CUDA offloading plugin: libelf dependency not found.")
return()
endif()
libomptarget_say("Building CUDA offloading plugin.")
# Define the suffix for the runtime messaging dumps.
add_definitions(-DTARGET_NAME=CUDA)
set(LIBOMPTARGET_DLOPEN_LIBCUDA OFF)
option(LIBOMPTARGET_FORCE_DLOPEN_LIBCUDA "Build with dlopened libcuda" ${LIBOMPTARGET_DLOPEN_LIBCUDA})
set(LIBOMPTARGET_CAN_LINK_LIBCUDA FALSE)
if (LIBOMPTARGET_DEP_CUDA_FOUND AND LIBOMPTARGET_DEP_CUDA_DRIVER_FOUND)
set(LIBOMPTARGET_CAN_LINK_LIBCUDA TRUE)
endif()
if (LIBOMPTARGET_CAN_LINK_LIBCUDA AND NOT LIBOMPTARGET_FORCE_DLOPEN_LIBCUDA)
libomptarget_say("Building CUDA plugin linked against libcuda")
include_directories(${LIBOMPTARGET_DEP_CUDA_INCLUDE_DIRS})
add_llvm_library(omptarget.rtl.cuda SHARED
src/rtl.cpp
ADDITIONAL_HEADER_DIRS
${LIBOMPTARGET_INCLUDE_DIR}
${LIBOMPTARGET_DEP_LIBELF_INCLUDE_DIRS}
LINK_LIBS
PRIVATE
elf_common
MemoryManager
${LIBOMPTARGET_DEP_CUDA_DRIVER_LIBRARIES}
${LIBOMPTARGET_DEP_LIBELF_LIBRARIES}
${OPENMP_PTHREAD_LIB}
"-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/../exports"
"-Wl,-z,defs"
NO_INSTALL_RPATH
)
else()
libomptarget_say("Building CUDA plugin for dlopened libcuda")
include_directories(dynamic_cuda)
add_llvm_library(omptarget.rtl.cuda
SHARED
src/rtl.cpp
dynamic_cuda/cuda.cpp
ADDITIONAL_HEADER_DIRS
${LIBOMPTARGET_INCLUDE_DIR}
${LIBOMPTARGET_DEP_LIBELF_INCLUDE_DIRS}
LINK_LIBS
PRIVATE
elf_common
MemoryManager
${CMAKE_DL_LIBS}
${LIBOMPTARGET_DEP_LIBELF_LIBRARIES}
${OPENMP_PTHREAD_LIB}
"-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/../exports"
"-Wl,-z,defs"
NO_INSTALL_RPATH
)
endif()
add_dependencies(omptarget.rtl.cuda omptarget.devicertl.nvptx)
add_runtimes_build_depends_if_needed(omptarget.rtl.cuda)
# Install plugin under the lib destination folder.
install(TARGETS omptarget.rtl.cuda LIBRARY DESTINATION "${OPENMP_INSTALL_LIBDIR}")
set_target_properties(omptarget.rtl.cuda PROPERTIES
INSTALL_RPATH "$ORIGIN" BUILD_RPATH "$ORIGIN:${CMAKE_CURRENT_BINARY_DIR}/..")
target_include_directories(omptarget.rtl.cuda PRIVATE
${LIBOMPTARGET_INCLUDE_DIR}
${LIBOMPTARGET_DEP_LIBELF_INCLUDE_DIRS}
)
# Report to the parent scope that we are building a plugin for CUDA.
# This controls whether tests are run for the nvptx offloading target
# Run them if libcuda is available, or if the user explicitly asked for dlopen
# Otherwise this plugin is being built speculatively and there may be no cuda available
if (LIBOMPTARGET_CAN_LINK_LIBCUDA OR LIBOMPTARGET_FORCE_DLOPEN_LIBCUDA)
libomptarget_say("Enable tests using CUDA plugin")
set(LIBOMPTARGET_SYSTEM_TARGETS "${LIBOMPTARGET_SYSTEM_TARGETS} nvptx64-nvidia-cuda nvptx64-nvidia-cuda-oldDriver" PARENT_SCOPE)
set(LIBOMPTARGET_SYSTEM_TARGETS "${LIBOMPTARGET_SYSTEM_TARGETS} nvptx64-nvidia-cuda nvptx64-nvidia-cuda-LTO" PARENT_SCOPE)
list(APPEND LIBOMPTARGET_TESTED_PLUGINS "omptarget.rtl.cuda")
set(LIBOMPTARGET_TESTED_PLUGINS "${LIBOMPTARGET_TESTED_PLUGINS}" PARENT_SCOPE)
else()
libomptarget_say("Disabling tests using CUDA plugin as cuda may not be available")
endif()
|
