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.

1 files changed, 180 insertions, 0 deletions

diff --git a/Modules/FindLAPACK.cmake b/Modules/FindLAPACK.cmake
new file mode 100644
index 0000000..7f838cd
--- /dev/null
+++ b/Modules/FindLAPACK.cmake
@@ -0,0 +1,180 @@
+# - Find LAPACK library
+# This module finds an installed fortran library that implements the LAPACK
+# linear-algebra interface (see http://www.netlib.org/lapack/).
+#
+# The approach follows that taken for the autoconf macro file, acx_lapack.m4
+# (distributed at http://ac-archive.sourceforge.net/ac-archive/acx_lapack.html).
+#
+# This module sets the following variables:
+#  LAPACK_FOUND - set to true if a library implementing the LAPACK interface
+#    is found
+#  LAPACK_LINKER_FLAGS - uncached list of required linker flags (excluding -l
+#    and -L).
+#  LAPACK_LIBRARIES - uncached list of libraries (using full path name) to 
+#    link against to use LAPACK
+#
+
+include(CheckFortranFunctionExists)
+set(LAPACK_FOUND FALSE)
+
+macro(Check_Lapack_Libraries LIBRARIES _prefix _name _flags _list _blas)
+# 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}} ${_blas})
+  #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})
+  #message("DEBUG: ${LIBRARIES} = ${${LIBRARIES}}")
+endif(_libraries_work)
+
+if(NOT _libraries_work)
+  set(${LIBRARIES} FALSE)
+endif(NOT _libraries_work)
+
+endmacro(Check_Lapack_Libraries)
+
+
+set(LAPACK_LINKER_FLAGS)
+set(LAPACK_LIBRARIES)
+
+
+if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
+  find_package(BLAS)
+else(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
+  find_package(BLAS REQUIRED)
+endif(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
+
+if(BLAS_FOUND)
+  set(LAPACK_LINKER_FLAGS ${BLAS_LINKER_FLAGS})
+
+#intel lapack
+  if(NOT LAPACK_LIBRARIES)
+
+  check_lapack_libraries(
+  LAPACK_LIBRARIES
+  LAPACK
+  cheev
+  ""
+  "mkl_lapack"
+ "${BLAS_LIBRARIES}"
+  )
+  endif(NOT LAPACK_LIBRARIES)
+
+
+
+#acml lapack
+  if(NOT LAPACK_LIBRARIES)
+
+  check_lapack_libraries(
+  LAPACK_LIBRARIES
+  LAPACK
+  cheev
+  ""
+  "acml"
+ "${BLAS_LIBRARIES}"
+  )
+endif(NOT LAPACK_LIBRARIES)
+
+
+# Apple LAPACK library?
+if(NOT LAPACK_LIBRARIES)
+  check_lapack_libraries(
+  LAPACK_LIBRARIES
+  LAPACK
+  cheev
+  ""
+  "Accelerate"
+  "${BLAS_LIBRARIES}"
+  )
+  endif(NOT LAPACK_LIBRARIES)
+  
+  if ( NOT LAPACK_LIBRARIES )
+    check_lapack_libraries(
+    LAPACK_LIBRARIES
+    LAPACK
+    cheev
+    ""
+    "vecLib"
+    "${BLAS_LIBRARIES}"
+    )
+  endif ( NOT LAPACK_LIBRARIES )
+
+
+
+
+
+# Generic LAPACK library?
+  if ( NOT LAPACK_LIBRARIES )
+    check_lapack_libraries(
+    LAPACK_LIBRARIES
+    LAPACK
+    cheev
+    ""
+    "lapack"
+    "${BLAS_LIBRARIES}"
+    )
+  endif ( NOT LAPACK_LIBRARIES )
+
+else(BLAS_FOUND)
+  message(STATUS "LAPACK requires BLAS")
+endif(BLAS_FOUND)
+
+if(LAPACK_LIBRARIES)
+  set(LAPACK_FOUND TRUE)
+else(LAPACK_LIBRARIES)
+  set(LAPACK_FOUND FALSE)
+endif(LAPACK_LIBRARIES)
+
+if(NOT LAPACK_FIND_QUIETLY)
+  if(LAPACK_FOUND)
+    message(STATUS "A library with LAPACK API found.")
+  else(LAPACK_FOUND)
+    if(LAPACK_FIND_REQUIRED)
+      message(FATAL_ERROR 
+      "A required library with LAPACK API not found. Please specify library location."
+      )
+    else(LAPACK_FIND_REQUIRED)
+      message(STATUS
+      "A library with LAPACK API not found. Please specify library location."
+      )
+    endif(LAPACK_FIND_REQUIRED)
+  endif(LAPACK_FOUND)
+endif(NOT LAPACK_FIND_QUIETLY)