LA_library/configure.ac
2021-10-07 16:22:17 +02:00

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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ([2.69])
AC_INIT([libla],[1.2],[jiri@pittnerovi.com])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([m4])
AM_PROG_AR
AM_INIT_AUTOMAKE([-Wall -Werror foreign])
LT_INIT
# Checks for programs.
AC_PROG_CXX
LT_INIT
AC_PROG_CC
#AC_PROG_RANLIB obsoleted by libtool
AC_LANG(C++)
# Check for Intel MKL first
#user has to e.g. setenv LDFLAGS "-L/opt/intel/composer_xe_2013_sp1.1.106/mkl/lib/intel64/"
#and setenv CXXFLAGS "-I/opt/intel/composer_xe_2013_sp1.1.106/mkl/include/"
MKLLIB=""
mkl_present=1
AC_CHECK_LIB([mkl_intel_lp64 -lmkl_sequential -lmkl_core -lpthread], [dgemm_], [
echo "MKL LIBRARY FOUND"
] , [
mkl_present=0
])
AC_CHECK_HEADER(mkl_cblas.h, [echo "MKL INCLUDE FOUND"], [mkl_present=0])
if test $mkl_present == 1
then
MKLLIB="-Wl,--start-group -lmkl_intel_lp64 -lmkl_sequential -lmkl_core -Wl,--end-group -lpthread"
AC_SUBST([MKLLIB])
CLAPACKOPT=-DNONCLAPACK
AC_SUBST([CLAPACKOPT])
MKLOPT="-DHAS_MKL"
AC_SUBST([MKLOPT])
else
echo "MKL LIBRARY OR HEADER NOT FOUND, will try ATLAS next!"
fi
# Checks for mandatory libraries.
ATLASLIB=""
if test $mkl_present == 0
then
AC_CHECK_LIB([atlas], [ATL_zgemv],ATLASLIB="-lblas -latlas", [
echo "ATLAS not found, I hope you are using some other efficient BLAS!"
])
AC_SUBST([ATLASLIB])
AC_CHECK_LIB([blas], [dgemm_],BLASLIB="-lblas", [
echo ERROR: BLAS not found! You have to install the BLAS library.
exit
],[$ATLASLIB])
AC_SUBST([BLASLIB])
fi
MATPTROPT=""
AC_ARG_ENABLE([matptr],[ --enable-matptr switch to double** matrix representation (CUDA incompatible) [[default=no]]],
[case "${enableval}" in
yes) MATPTROPT="-DMATPTR" ;;
no) ;;
*) AC_MSG_ERROR([bad value ${enableval} for --enable-matptr]) ;;
esac],
,)
#cblas and clapack available?
CBLASLIB=""
CBLASOPT=""
if test $mkl_present == 0
then
AC_CHECK_LIB([cblas], [cblas_ddot], [CBLASLIB="-lcblas"], [CBLASOPT=-DNONCBLAS],[$ATLASLIB])
AC_CHECK_HEADER([cblas.h],,[CBLASOPT=-DNONCBLAS CBLASLIB=""], AC_INCLUDES_DEFAULT)
AC_SUBST([CBLASLIB])
AC_SUBST([CBLASOPT])
AC_CHECK_LIB([lapack], [dgeev_],, [
echo ERROR: LAPACK not found! You have to install the LAPACK library
exit
],[$CBLASLIB $BLASLIB $ATLASLIB])
AC_CHECK_LIB([lapack], [clapack_dgesv], , [CLAPACKOPT=-DNONCLAPACK],[$CBLASLIB $BLASLIB $ATLASLIB])
AC_CHECK_HEADER([clapack.h],,[CLAPACKOPT=-DNONCLAPACK], AC_INCLUDES_DEFAULT)
AC_SUBST([CLAPACKOPT])
fi
#MKL end
#CUDA available? link with cublas and avoid cblas and clapack then...
AC_CHECK_LIB([cublas], [cublasInit], [MATPTROPT="" NVCC=nvcc NVCCFLAGS="-O -arch sm_20" CUDALIBS=-lcublas CUDAOPT=-DCUDALA CBLASOPT=-DNONCBLAS CLAPACKOPT=-DNONCLAPACK CBLASLIB=""], [CUDALIB="" CUDAOPT=""])
AC_CHECK_HEADER([cublas.h],,[CUDAOPT="" CUDALIBS=""], AC_INCLUDES_DEFAULT)
AC_SUBST([CUDALIBS])
AC_SUBST([CUDAOPT])
AC_SUBST([NVCC])
AC_SUBST([NVCCFLAGS])
AC_SUBST([MATPTROPT])
#process options
FORINTOPT=""
AC_ARG_ENABLE([fotran64int],[ --enable-fotran64int to link with 64-bit-integer-BLAS+LAPACK ],
[case "${enableval}" in
yes) FORINTOPT="-DLONG_FORTRAN_INT"
CBLASLIB=""
CBLASOPT=-DNONCBLAS
CLAPACKOPT=-DNONCLAPACK
;;
no) FORINTOPT="" ;;
*) FORINTOPT=${enableval}
esac],
,)
AC_SUBST([FORINTOPT])
OPTIMIZEOPT="-O3 -finline-limit=1000"
AC_ARG_ENABLE([optimize],[ --enable-optimize to compile with optimization [[default= -O3 -finline-limit=1000]]],
[case "${enableval}" in
yes) ;;
no) OPTIMIZEOPT="" ;;
*) OPTIMIZEOPT=${enableval}
esac],
,)
AC_SUBST([OPTIMIZEOPT])
DEBUGOPT="-DDEBUG"
AC_ARG_ENABLE([debug],[ --disable-debug not to perform some range-checking [[default=yes]]],
[case "${enableval}" in
yes) ;;
no) DEBUGOPT="" ;;
*) AC_MSG_ERROR([bad value ${enableval} for --enable-debug]) ;;
esac],
,)
AC_SUBST([DEBUGOPT])
# Checks for header files.
AC_CHECK_HEADERS([fcntl.h stdlib.h string.h sys/vfs.h unistd.h])
# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL
AC_C_INLINE
AC_TYPE_SIZE_T
AC_TYPE_SSIZE_T
AC_CHECK_MEMBERS([struct stat.st_blksize])
# Checks for library functions.
AC_CHECK_FUNCS([getpagesize memset sqrt])
#Doxygen support
DX_INIT_DOXYGEN($PACKAGE_NAME, doxygen.cfg)
AC_CONFIG_FILES([Makefile])
AC_OUTPUT
echo
echo "**********************************************************************************"
echo "The LA library has now been configured. You may run make; make check; make install"
echo "Please make sure that the generated Makefile employs a proper version of optimized"
echo "BLAS/LAPACK library. If not, re-run configure with CXXFLAGS and LDFLAGS options "
echo "set to '-I/path' and '-L/path' for your preferred BLAS/LAPACK library version. "
echo "Either use export or specify these options on the command line ./configure ..... "
echo "In addition, similarly you might set include and link paths for Nvidia CUBLAS. "
echo "Use ./configure --disable-optimize CXXFLAGS='' LDFLAGS='' for a fast compile. "
echo "Use --enable-fotran64int to link with BLAS and LAPACK using 64-bit integers. "
echo "For documentation, 'make doxygen-doc' and see doxygen-doc/html/index.html "
echo "For usage examples see file t.cc. Do not forget using copyonwrite() before "
echo "changing individual matrix/vector elements via l.h.s. operator() "
echo "**********************************************************************************"
echo