summaryrefslogtreecommitdiffstats
path: root/Modules/FindLAPACK.cmake
blob: 7f838cd6d685480628287828593a2011945395ec (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
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)