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# Copyright (c) 2017 - 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: BSD-3-Clause
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
message(STATUS "Configuring cublas ...")
if((DEFINED CUTLASS_ENABLE_CUBLAS AND NOT CUTLASS_ENABLE_CUBLAS) OR
(DEFINED CUBLAS_ENABLED AND NOT CUBLAS_ENABLED))
# Don't add cuBLAS if it's defined and false, assume it's not found.
set(CUBLAS_FOUND OFF)
message(STATUS "cuBLAS Disabled.")
elseif(NOT TARGET cublas)
find_path(
_CUBLAS_INCLUDE_DIR
NAMES cublas_v2.h
HINTS
${CUBLAS_INCLUDE_PATH}
ENV CUBLAS_INCLUDE_PATH
${CUBLAS_PATH}
ENV CUBLAS_PATH
${CUDA_TOOLKIT_ROOT_DIR}
PATH_SUFFIXES
include
)
find_library(
_CUBLAS_LIBRARY
NAMES cublas
HINTS
${CUBLAS_LIBRARY_PATH}
ENV CUBLAS_LIBRARY_PATH
${_CUBLAS_INCLUDE_DIR}/..
${CUBLAS_PATH}
ENV CUBLAS_PATH
${CUDA_TOOLKIT_ROOT_DIR}
PATH_SUFFIXES
lib64
lib/x64
lib
)
if(_CUBLAS_INCLUDE_DIR AND _CUBLAS_LIBRARY)
message(STATUS "cuBLAS: ${_CUBLAS_LIBRARY}")
message(STATUS "cuBLAS: ${_CUBLAS_INCLUDE_DIR}")
set(CUBLAS_FOUND ON CACHE INTERNAL "cublas Library Found")
set(CUBLAS_LIBRARY ${_CUBLAS_LIBRARY})
set(CUBLAS_INCLUDE_DIR ${_CUBLAS_INCLUDE_DIR})
else()
message(STATUS "cublas not found.")
set(CUBLAS_FOUND OFF CACHE INTERNAL "cublas Library Found")
endif()
endif()
set(CUTLASS_ENABLE_CUBLAS ${CUBLAS_FOUND} CACHE BOOL "Enable CUTLASS to build with cuBLAS library.")
if(CUTLASS_ENABLE_CUBLAS AND NOT CUBLAS_FOUND)
message(FATAL_ERROR "CUTLASS_ENABLE_CUBLAS enabled but cuBLAS library could not be found.")
endif()
if(CUTLASS_ENABLE_CUBLAS AND NOT TARGET cublas)
if(WIN32)
add_library(cublas STATIC IMPORTED GLOBAL)
else()
add_library(cublas SHARED IMPORTED GLOBAL)
endif()
add_library(nvidia::cublas ALIAS cublas)
set_property(
TARGET cublas
PROPERTY IMPORTED_LOCATION
${CUBLAS_LIBRARY})
target_include_directories(
cublas
INTERFACE
$<INSTALL_INTERFACE:include>
$<BUILD_INTERFACE:${CUBLAS_INCLUDE_DIR}>)
find_library(
_CUBLASLT_LIBRARY
NAMES cublasLt
HINTS
${CUBLAS_LIBRARY_PATH}
ENV CUBLAS_LIBRARY_PATH
${_CUBLAS_INCLUDE_DIR}/..
${CUBLAS_PATH}
ENV CUBLAS_PATH
${CUDA_TOOLKIT_ROOT_DIR}
PATH_SUFFIXES
lib64
lib/x64
lib
)
if(_CUBLASLT_LIBRARY AND NOT TARGET cublasLt)
if(WIN32)
add_library(cublasLt STATIC IMPORTED GLOBAL)
else()
add_library(cublasLt SHARED IMPORTED GLOBAL)
endif()
set_property(
TARGET cublasLt
PROPERTY IMPORTED_LOCATION
${_CUBLASLT_LIBRARY})
add_library(nvidia::cublasLt ALIAS cublasLt)
target_link_libraries(cublas INTERFACE cublasLt)
endif()
endif()
message(STATUS "Configuring cuBLAS ... done.")
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