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, 273 insertions, 0 deletions

diff --git a/Modules/FindBLAS.cmake b/Modules/FindBLAS.cmake
new file mode 100644
index 0000000000..fb4805ff3d
--- /dev/null
+++ b/Modules/FindBLAS.cmake
@@ -0,0 +1,273 @@
+# - 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)