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authorAlin Elena <alinm.elena@gmail.com>2007-10-10 21:47:37 (GMT)
committerAlin Elena <alinm.elena@gmail.com>2007-10-10 21:47:37 (GMT)
commit680cff0b9fdb17758c8334267f5fa4913ae39f43 (patch)
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ENH: FindBLAS.cmake and FindLAPACK.cmake modules added. They locate various implementations of blas and lapack libraries. CheckFortranFunctionExists.cmake provides a test function to check if the library is usabale. I have also changed the -KPIC flag to -fPIC in Linux-ifort.cmake.
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+# - Find BLAS library
+# This module finds an installed fortran library that implements the BLAS
+# linear-algebra interface (see http://www.netlib.org/blas/).
+# The list of libraries searched for is taken
+# from the autoconf macro file, acx_blas.m4 (distributed at
+# http://ac-archive.sourceforge.net/ac-archive/acx_blas.html).
+#
+# This module sets the following variables:
+# BLAS_FOUND - set to true if a library implementing the BLAS interface
+# is found
+# BLAS_LINKER_FLAGS - uncached list of required linker flags (excluding -l
+# and -L).
+# BLAS_LIBRARIES - uncached list of libraries (using full path name) to
+# link against to use BLAS
+#
+
+include(CheckFortranFunctionExists)
+
+macro(Check_Fortran_Libraries LIBRARIES _prefix _name _flags _list)
+# This macro checks for the existence of the combination of fortran libraries
+# given by _list. If the combination is found, this macro checks (using the
+# Check_Fortran_Function_Exists macro) whether can link against that library
+# combination using the name of a routine given by _name using the linker
+# flags given by _flags. If the combination of libraries is found and passes
+# the link test, LIBRARIES is set to the list of complete library paths that
+# have been found. Otherwise, LIBRARIES is set to FALSE.
+
+# N.B. _prefix is the prefix applied to the names of all cached variables that
+# are generated internally and marked advanced by this macro.
+
+set(_libraries_work TRUE)
+set(${LIBRARIES})
+set(_combined_name)
+foreach(_library ${_list})
+ set(_combined_name ${_combined_name}_${_library})
+
+ if(_libraries_work)
+
+ if ( APPLE )
+ find_library(${_prefix}_${_library}_LIBRARY
+ NAMES ${_library}
+ PATHS /usr/local/lib /usr/lib /usr/local/lib64 /usr/lib64 ENV DYLD_LIBRARY_PATH
+ )
+
+ else ( APPLE )
+ find_library(${_prefix}_${_library}_LIBRARY
+ NAMES ${_library}
+ PATHS /usr/local/lib /usr/lib /usr/local/lib64 /usr/lib64 ENV LD_LIBRARY_PATH
+ )
+ endif( APPLE )
+ mark_as_advanced(${_prefix}_${_library}_LIBRARY)
+ set(${LIBRARIES} ${${LIBRARIES}} ${${_prefix}_${_library}_LIBRARY})
+ set(_libraries_work ${${_prefix}_${_library}_LIBRARY})
+ endif(_libraries_work)
+endforeach(_library ${_list})
+if(_libraries_work)
+ # Test this combination of libraries.
+ set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${${LIBRARIES}})
+ #message("DEBUG: CMAKE_REQUIRED_LIBRARIES = ${CMAKE_REQUIRED_LIBRARIES}")
+ check_fortran_function_exists(${_name} ${_prefix}${_combined_name}_WORKS)
+ set(CMAKE_REQUIRED_LIBRARIES)
+ mark_as_advanced(${_prefix}${_combined_name}_WORKS)
+ set(_libraries_work ${${_prefix}${_combined_name}_WORKS})
+endif(_libraries_work)
+if(NOT _libraries_work)
+ set(${LIBRARIES} FALSE)
+endif(NOT _libraries_work)
+#message("DEBUG: ${LIBRARIES} = ${${LIBRARIES}}")
+endmacro(Check_Fortran_Libraries)
+
+set(BLAS_LINKER_FLAGS)
+set(BLAS_LIBRARIES)
+
+
+
+if(NOT BLAS_LIBRARIES)
+ # BLAS in ATLAS library? (http://math-atlas.sourceforge.net/)
+ check_fortran_libraries(
+ BLAS_LIBRARIES
+ BLAS
+ cblas_dgemm
+ ""
+ "cblas;f77blas;atlas"
+ )
+endif(NOT BLAS_LIBRARIES)
+
+# BLAS in PhiPACK libraries? (requires generic BLAS lib, too)
+if(NOT BLAS_LIBRARIES)
+ check_fortran_libraries(
+ BLAS_LIBRARIES
+ BLAS
+ sgemm
+ ""
+ "sgemm;dgemm;blas"
+ )
+endif(NOT BLAS_LIBRARIES)
+
+# BLAS in Alpha CXML library?
+if(NOT BLAS_LIBRARIES)
+ check_fortran_libraries(
+ BLAS_LIBRARIES
+ BLAS
+ sgemm
+ ""
+ "cxml"
+ )
+endif(NOT BLAS_LIBRARIES)
+
+# BLAS in Alpha DXML library? (now called CXML, see above)
+if(NOT BLAS_LIBRARIES)
+ check_fortran_libraries(
+ BLAS_LIBRARIES
+ BLAS
+ sgemm
+ ""
+ "dxml"
+ )
+endif(NOT BLAS_LIBRARIES)
+
+# BLAS in Sun Performance library?
+if(NOT BLAS_LIBRARIES)
+ check_fortran_libraries(
+ BLAS_LIBRARIES
+ BLAS
+ sgemm
+ "-xlic_lib=sunperf"
+ "sunperf;sunmath"
+ )
+ if(BLAS_LIBRARIES)
+ set(BLAS_LINKER_FLAGS "-xlic_lib=sunperf")
+ endif(BLAS_LIBRARIES)
+
+endif(NOT BLAS_LIBRARIES)
+
+# BLAS in SCSL library? (SGI/Cray Scientific Library)
+if(NOT BLAS_LIBRARIES)
+ check_fortran_libraries(
+ BLAS_LIBRARIES
+ BLAS
+ sgemm
+ ""
+ "scsl"
+ )
+endif(NOT BLAS_LIBRARIES)
+
+# BLAS in SGIMATH library?
+if(NOT BLAS_LIBRARIES)
+ check_fortran_libraries(
+ BLAS_LIBRARIES
+ BLAS
+ sgemm
+ ""
+ "complib.sgimath"
+ )
+endif(NOT BLAS_LIBRARIES)
+
+# BLAS in IBM ESSL library? (requires generic BLAS lib, too)
+if(NOT BLAS_LIBRARIES)
+ check_fortran_libraries(
+ BLAS_LIBRARIES
+ BLAS
+ sgemm
+ ""
+ "essl;blas"
+ )
+endif(NOT BLAS_LIBRARIES)
+
+
+
+
+# BLAS in intel mkl library? (shared)
+if(NOT BLAS_LIBRARIES)
+ check_fortran_libraries(
+ BLAS_LIBRARIES
+ BLAS
+ sgemm
+ ""
+ "mkl;guide;pthread"
+ )
+endif(NOT BLAS_LIBRARIES)
+
+#BLAS in intel mkl library? (static, 32bit)
+if(NOT BLAS_LIBRARIES)
+check_fortran_libraries(
+BLAS_LIBRARIES
+BLAS
+sgemm
+""
+"mkl_ia32;guide;pthread"
+)
+endif(NOT BLAS_LIBRARIES)
+
+#BLAS in intel mkl library? (static, em64t 64bit)
+if(NOT BLAS_LIBRARIES)
+check_fortran_libraries(
+BLAS_LIBRARIES
+BLAS
+sgemm
+""
+"mkl_em64t;guide;pthread"
+)
+endif(NOT BLAS_LIBRARIES)
+
+
+#BLAS in acml library?
+if(NOT BLAS_LIBRARIES)
+check_fortran_libraries(
+BLAS_LIBRARIES
+BLAS
+sgemm
+""
+"acml"
+)
+endif(NOT BLAS_LIBRARIES)
+
+
+
+# Apple BLAS library?
+if(NOT BLAS_LIBRARIES)
+ check_fortran_libraries(
+ BLAS_LIBRARIES
+ BLAS
+ cblas_dgemm
+ ""
+ "Accelerate"
+ )
+
+ endif(NOT BLAS_LIBRARIES)
+
+ if ( NOT BLAS_LIBRARIES )
+ check_fortran_libraries(
+ BLAS_LIBRARIES
+ BLAS
+ cblas_dgemm
+ ""
+ "vecLib"
+ )
+ endif ( NOT BLAS_LIBRARIES )
+
+
+# Generic BLAS library?
+if(NOT BLAS_LIBRARIES)
+ check_fortran_libraries(
+ BLAS_LIBRARIES
+ BLAS
+ sgemm
+ ""
+ "blas"
+ )
+endif(NOT BLAS_LIBRARIES)
+
+
+if(BLAS_LIBRARIES)
+ set(BLAS_FOUND TRUE)
+else(BLAS_LIBRARIES)
+ set(BLAS_FOUND FALSE)
+endif(BLAS_LIBRARIES)
+
+if(NOT BLAS_FIND_QUIETLY)
+ if(BLAS_FOUND)
+ message(STATUS "A library with BLAS API found.")
+ else(BLAS_FOUND)
+ if(BLAS_FIND_REQUIRED)
+ message(FATAL_ERROR
+ "A required library with BLAS API not found. Please specify library location."
+ )
+ else(BLAS_FIND_REQUIRED)
+ message(STATUS
+ "A library with BLAS API not found. Please specify library location."
+ )
+ endif(BLAS_FIND_REQUIRED)
+ endif(BLAS_FOUND)
+endif(NOT BLAS_FIND_QUIETLY)