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Use OpenBLAS instead of BLAS if available. OpenBLAS is an optimized BLAS

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library.
This commit is contained in:
Carles Fernandez 2014-08-01 12:27:11 +02:00
parent afc7d1c8e3
commit 3e99566dd3
2 changed files with 42 additions and 6 deletions
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23
CMakeLists.txt
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@ -562,9 +562,10 @@ endif(DOXYGEN_FOUND)
################################################################################
if(OS_IS_LINUX)
#############################################
#############################################################################
# Check that LAPACK is found in the system
#############################################
# LAPACK is required for matrix decompositions (eg. SVD) and matrix inverse.
#############################################################################
find_library(LAPACK lapack)
if(NOT LAPACK)
message(" The LAPACK library has not been found.")
@ -578,9 +579,11 @@ if(OS_IS_LINUX)
endif(${LINUX_DISTRIBUTION} MATCHES "Fedora" OR ${LINUX_DISTRIBUTION} MATCHES "Red Hat")
message(FATAL_ERROR "LAPACK is required to build gnss-sdr")
endif(NOT LAPACK)
#############################################
#############################################################################
# Check that BLAS is found in the system
#############################################
# BLAS is used for matrix multiplication.
#ÊWithout BLAS, matrix multiplication will still work, but might be slower.
#############################################################################
find_library(BLAS blas)
if(NOT BLAS)
message(" The BLAS library has not been found.")
@ -668,7 +671,11 @@ if(NOT ARMADILLO_FOUND)
"12c12
< // #define ARMA_USE_LAPACK
---
> #define ARMA_USE_LAPACK
> #define ARMA_USE_LAPACK
19c19
< // #define ARMA_USE_BLAS
---
> #define ARMA_USE_BLAS
")
endif(EXISTS ${CMAKE_CURRENT_BINARY_DIR}/download/armadillo-${armadillo_RELEASE}/armadillo-${armadillo_RELEASE}.tar.gz)
ExternalProject_Add(
@ -689,7 +696,11 @@ if(NOT ARMADILLO_FOUND)
ExternalProject_Get_Property(armadillo-${armadillo_RELEASE} binary_dir)
set(ARMADILLO_INCLUDE_DIRS ${binary_dir}/include )
find_library(LAPACK NAMES lapack HINTS /usr/lib /usr/local/lib /usr/lib64)
set(ARMADILLO_LIBRARIES ${LAPACK} ${GFORTRAN} ${binary_dir}/${CMAKE_FIND_LIBRARY_PREFIXES}armadillo.a)
find_package(OpenBLAS)
if(OPENBLAS_FOUND)
set(BLAS OPENBLAS)
endif(OPENBLAS_FOUND)
set(ARMADILLO_LIBRARIES ${BLAS} ${LAPACK} ${GFORTRAN} ${binary_dir}/${CMAKE_FIND_LIBRARY_PREFIXES}armadillo.a)
set(LOCAL_ARMADILLO true CACHE STRING "Armadillo downloaded and built automatically" FORCE)
# Save a copy at the thirdparty folder
file(COPY ${CMAKE_CURRENT_BINARY_DIR}/armadillo-${armadillo_RELEASE}

25
cmake/Modules/FindOpenBLAS.cmake Normal file
View File

@ -0,0 +1,25 @@
# - Try to find OpenBLAS library (not headers!)
#
# The following environment variable is optionally searched
# OPENBLAS_HOME: Base directory where all OpenBlas components are found
SET(OPEN_BLAS_SEARCH_PATHS /lib/
/lib64/
/usr/lib
/usr/lib64
/usr/local/lib
/usr/local/lib64
/opt/OpenBLAS/lib
/opt/local/lib
/usr/lib/openblas-base
$ENV{OPENBLAS_HOME}/lib
)
FIND_LIBRARY(OPENBLAS NAMES openblas PATHS ${OPEN_BLAS_SEARCH_PATHS})
IF (OPENBLAS)
SET(OPENBLAS_FOUND ON)
MESSAGE(STATUS "Found OpenBLAS")
ENDIF (OPENBLAS)
MARK_AS_ADVANCED(OPENBLAS)