forked from bitsandbytes-foundation/bitsandbytes
-
Notifications
You must be signed in to change notification settings - Fork 0
/
CMakeLists.txt
232 lines (191 loc) · 9.48 KB
/
CMakeLists.txt
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
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
# This CMake config hopefully makes it easier to compile.
# Ensure the CUDA Toolkit is available on your path. Then run:
# For GCC: `cmake -B build . && cmake --build build`
# For MSVC: `cmake -B build . && cmake --build build --config Release`
# You can also use the following options and variables
# - COMPUTE_BACKEND: Set to `cpu`, `cuda`, or `mps` to select the backend
# - NO_CUBLASLT: Default OFF, will skip building/linking CUBLASLT support
# - CUDA_VERSION: The expected CUDA version, for sanity checking. The actual version
# is whatever CMake finds on your path.
# - COMPUTE_CAPABILITY: Which GPU Arch/Compute codes to provide to NVCC.
# Separate by semicolons, i.e. `-DCOMPUTE_CAPABILITY=89;90`
# Check your compute capability here: https://developer.nvidia.com/cuda-gpus
# - PTXAS_VERBOSE: Pass the `-v` option to the PTX Assembler
cmake_minimum_required(VERSION 3.22.1)
project(bitsandbytes LANGUAGES CXX)
# If run without specifying a build type, default to using the Release configuration:
# optimizing the generated binaries for performance and also adds the `-DNDEBUG` flag,
# which turns off a bunch of asserts which seem to link to new symbols in libstdc++,
# worsening our many_linux compliance..
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE Release)
endif()
# Define included source files
set(CPP_FILES csrc/common.cpp csrc/cpu_ops.cpp csrc/pythonInterface.cpp)
set(CUDA_FILES csrc/ops.cu csrc/kernels.cu)
set(MPS_FILES csrc/mps_ops.mm)
set(METAL_FILES csrc/mps_kernels.metal)
# C++ sources are always included
list(APPEND SRC_FILES ${CPP_FILES})
set(COMPUTE_BACKEND "cpu" CACHE STRING "The compute backend to use (cpu, cuda, mps)")
set_property(CACHE COMPUTE_BACKEND PROPERTY STRINGS cpu cuda mps)
option(PTXAS_VERBOSE "Pass through -v flag to PTX Assembler" OFF)
if(APPLE)
set(CMAKE_OSX_DEPLOYMENT_TARGET 13.1)
endif()
set(BNB_OUTPUT_NAME "bitsandbytes")
message(STATUS "Configuring ${PROJECT_NAME} (Backend: ${COMPUTE_BACKEND})")
if(${COMPUTE_BACKEND} STREQUAL "cuda")
if(APPLE)
message(FATAL_ERROR "CUDA is not supported on macOS" )
endif()
option(NO_CUBLASLT "Disable CUBLAS" OFF)
set(BUILD_CUDA ON)
set(BUILD_MPS OFF)
message(STATUS "NO_CUBLASLT := ${NO_CUBLASLT}")
elseif(${COMPUTE_BACKEND} STREQUAL "mps")
if(NOT APPLE)
message(FATAL_ERROR "MPS is only supported on macOS" )
endif()
set(BUILD_CUDA OFF)
set(BUILD_MPS ON)
else()
set(BUILD_CUDA OFF)
set(BUILD_MPS OFF)
endif()
if(BUILD_CUDA)
enable_language(CUDA) # This will fail if CUDA is not found
find_package(CUDAToolkit REQUIRED)
# Convert the CUDA version from X.Y.z to XY. There's probably a shorter way of doing this
string(REGEX MATCH "^[0-9]+.[0-9]+" _CUDA_VERSION_FIRST_TWO "${CMAKE_CUDA_COMPILER_VERSION}")
string(REPLACE "." "" CUDA_VERSION_SHORT "${_CUDA_VERSION_FIRST_TWO}")
# Expose a cache variable that the user can set to ensure the correct version of CUDA is found
set(CUDA_VERSION "${CUDA_VERSION_SHORT}" CACHE STRING "Expected CUDA Version Shortcode")
message(STATUS "CUDA Version: ${CUDA_VERSION_SHORT} (${CMAKE_CUDA_COMPILER_VERSION})")
message(STATUS "CUDA Compiler: ${CMAKE_CUDA_COMPILER}")
# It should match the discovered version
if(NOT CUDA_VERSION STREQUAL "${CUDA_VERSION_SHORT}")
message(FATAL_ERROR "You've specified CUDA version ${CUDA_VERSION} however the CUDA compiler found is ${CUDA_VERSION_SHORT}."
" Ensure the desired CUDA compiler is the first one available on your PATH."
)
endif()
if(CMAKE_CUDA_COMPILER_VERSION VERSION_LESS "11.0")
message(FATAL_ERROR "CUDA Version < 11 is not supported")
elseif(CMAKE_CUDA_COMPILER_VERSION VERSION_GREATER_EQUAL "13.0")
message(FATAL_ERROR "CUDA Version > 12 is not supported")
endif()
# CMake < 3.23.0 does not define CMAKE_CUDA_ARCHITECTURES_ALL.
if(CMAKE_VERSION VERSION_LESS "3.23.0")
message(STATUS "CMake < 3.23.0; determining CUDA architectures supported...")
# 11.x and 12.x both support these at a minimum.
set(CMAKE_CUDA_ARCHITECTURES_ALL 50 52 53 60 61 62 70 72 75 80)
set(CMAKE_CUDA_ARCHITECTURES_ALL_MAJOR 50 60 70 80)
# CUDA 11.1 adds Ampere support for GA102-GA107.
if (CMAKE_CUDA_COMPILER_VERSION VERSION_GREATER_EQUAL "11.1")
list(APPEND CMAKE_CUDA_ARCHITECTURES_ALL 86)
endif()
# CUDA 11.4 adds Ampere support for GA10B.
if (CMAKE_CUDA_COMPILER_VERSION VERSION_GREATER_EQUAL "11.4")
list(APPEND CMAKE_CUDA_ARCHITECTURES_ALL 87)
endif()
# CUDA 11.8 adds support for Ada and Hopper.
if (CMAKE_CUDA_COMPILER_VERSION VERSION_GREATER_EQUAL "11.8")
list(APPEND CMAKE_CUDA_ARCHITECTURES_ALL 89 90)
list(APPEND CMAKE_CUDA_ARCHITECTURES_ALL_MAJOR 90)
endif()
endif()
string(APPEND CMAKE_CUDA_FLAGS " --use_fast_math")
if(PTXAS_VERBOSE)
# Verbose? Outputs register usage information, and other things...
string(APPEND CMAKE_CUDA_FLAGS " -Xptxas=-v")
endif()
foreach(capability ${CMAKE_CUDA_ARCHITECTURES_ALL})
# Most of the items here are like: `xx-real`, so we just extract the `xx` portion
string(REGEX MATCH "[0-9]+" capability_id "${capability}")
if(capability_id GREATER 0)
list(APPEND POSSIBLE_CAPABILITIES ${capability_id})
endif()
endforeach()
# This can be changed via -D argument to CMake
# By default all possible capabilities are compiled
set(COMPUTE_CAPABILITY "${POSSIBLE_CAPABILITIES}" CACHE STRING "Compute Capabilities Targeted")
message(STATUS "CUDA Capabilities Available: ${POSSIBLE_CAPABILITIES}")
message(STATUS "CUDA Capabilities Selected: ${COMPUTE_CAPABILITY}")
# Use the "real" option to build native cubin for all selections.
# Ensure we build the PTX for the latest version.
# This behavior of adding a PTX (virtual) target for the highest architecture
# is similar to how the "all" and "all-major" options would behave in CMake >= 3.23.
# TODO: Consider bumping CMake requirement and using CMAKE_CUDA_ARCHITECTURES=[all | native] by default
list(REMOVE_DUPLICATES COMPUTE_CAPABILITY)
list(SORT COMPUTE_CAPABILITY COMPARE NATURAL)
list(POP_BACK COMPUTE_CAPABILITY _LATEST_CAPABILITY)
list(TRANSFORM COMPUTE_CAPABILITY APPEND "-real" OUTPUT_VARIABLE CMAKE_CUDA_ARCHITECTURES)
list(APPEND CMAKE_CUDA_ARCHITECTURES ${_LATEST_CAPABILITY})
message(STATUS "CUDA Targets: ${CMAKE_CUDA_ARCHITECTURES}")
message(STATUS "CUDA NVCC Flags: ${CMAKE_CUDA_FLAGS}")
list(APPEND SRC_FILES ${CUDA_FILES})
string(APPEND BNB_OUTPUT_NAME "_cuda${CUDA_VERSION_SHORT}")
if(NO_CUBLASLT)
string(APPEND BNB_OUTPUT_NAME "_nocublaslt")
endif()
add_compile_definitions(BUILD_CUDA)
elseif(BUILD_MPS)
if(NOT APPLE)
message(FATAL_ERROR "MPS is only supported on macOS" )
endif()
enable_language(OBJCXX)
list(APPEND SRC_FILES ${MPS_FILES})
string(APPEND BNB_OUTPUT_NAME "_mps")
add_compile_definitions(BUILD_MPS)
file(MAKE_DIRECTORY "build")
add_custom_command(OUTPUT "bitsandbytes/bitsandbytes.metallib"
COMMAND xcrun metal -c -o "build/bitsandbytes.air" ${METAL_FILES}
COMMAND xcrun metallib "build/bitsandbytes.air" -o "bitsandbytes/bitsandbytes.metallib"
DEPENDS "${METAL_FILES}"
COMMENT "Compiling Metal kernels"
VERBATIM)
add_custom_target(metallib DEPENDS "bitsandbytes/bitsandbytes.metallib")
else()
string(APPEND BNB_OUTPUT_NAME "_cpu")
set(GPU_SOURCES)
endif()
if(WIN32)
# Export all symbols
set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
endif()
# Weird MSVC hacks
if(MSVC)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:AVX2 /fp:fast")
endif()
set_source_files_properties(${CPP_FILES} PROPERTIES LANGUAGE CXX)
add_library(bitsandbytes SHARED ${SRC_FILES})
target_compile_features(bitsandbytes PUBLIC cxx_std_14)
target_include_directories(bitsandbytes PUBLIC csrc include)
if(BUILD_CUDA)
target_include_directories(bitsandbytes PUBLIC ${CMAKE_CUDA_TOOLKIT_INCLUDE_DIRECTORIES})
target_link_libraries(bitsandbytes PUBLIC CUDA::cudart CUDA::cublas CUDA::cusparse)
if(NO_CUBLASLT)
target_compile_definitions(bitsandbytes PUBLIC NO_CUBLASLT)
else()
target_link_libraries(bitsandbytes PUBLIC CUDA::cublasLt)
endif()
set_target_properties(bitsandbytes
PROPERTIES
CUDA_SEPARABLE_COMPILATION ON
)
endif()
if(BUILD_MPS)
add_dependencies(bitsandbytes metallib)
target_link_libraries(bitsandbytes objc "-framework Foundation" "-framework Metal" "-framework MetalPerformanceShaders" "-framework MetalPerformanceShadersGraph")
endif()
if(WIN32)
set_target_properties(bitsandbytes PROPERTIES PREFIX "lib")
endif()
set_target_properties(bitsandbytes PROPERTIES OUTPUT_NAME ${BNB_OUTPUT_NAME})
if(MSVC)
set_target_properties(bitsandbytes PROPERTIES LIBRARY_OUTPUT_DIRECTORY_RELEASE "${PROJECT_SOURCE_DIR}/bitsandbytes")
set_target_properties(bitsandbytes PROPERTIES LIBRARY_OUTPUT_DIRECTORY_DEBUG "${PROJECT_SOURCE_DIR}/bitsandbytes")
set_target_properties(bitsandbytes PROPERTIES RUNTIME_OUTPUT_DIRECTORY_RELEASE "${PROJECT_SOURCE_DIR}/bitsandbytes")
set_target_properties(bitsandbytes PROPERTIES RUNTIME_OUTPUT_DIRECTORY_DEBUG "${PROJECT_SOURCE_DIR}/bitsandbytes")
endif()
set_target_properties(bitsandbytes PROPERTIES LIBRARY_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/bitsandbytes")