c++ - Armadillo : Can not find clapack. h

Question

我正在尝试安装 Armadillo link .

但是，make 命令提示“clapack.h” 确实存在于位置/usr/include/atlas/clapack.h。一些帮助将不胜感激。

请注意，如果我将该文件复制到/usr/include/然后制作:

$ sudo cp /usr/include/atlas/clapack.h /usr/include/
$ make

但是，我不太愿意在多个位置制作同一个文件的拷贝。 会不会很危险？

这是我目前所做的:

1) 我下载并压缩了 Armadillo 库。之后，我更改了 CMakeLists.txt 中的以下几行(我有 Lapack、Blas、Atlas):

set(ARMA_USE_LAPACK    true)
set(ARMA_USE_BLAS      true)
set(ARMA_USE_ATLAS     true)
set(ARMA_USE_HDF5_ALT  false)
set(ARMA_USE_ARPACK    false)
set(ARMA_USE_CXX11_RNG false)
set(ARMA_USE_WRAPPER   true )

然后 "$cmake ."成功运行并找到 Lapack、Blas 和 Atlas。但是，当我运行“make”时，出现以下错误(代码 include_atlas.hpp 中标记的第 26 行):

$ make

Scanning dependencies of target armadillo
[100%] Building CXX object CMakeFiles/armadillo.dir/src/wrapper.cpp.o
In file included from /home/dkumar/Downloads/armadillo-4.600.3/src/wrapper.cpp:10:0:
/home/dkumar/Downloads/armadillo-4.600.3/tmp/include/armadillo_bits/include_atlas.hpp:26:47: fatal error: /usr/include/clapack.h: No such file or directory
       #include ARMA_INCFILE_WRAP(ARMA_CLAPACK)
                                               ^
compilation terminated.
make[2]: *** [CMakeFiles/armadillo.dir/src/wrapper.cpp.o] Error 1
make[1]: *** [CMakeFiles/armadillo.dir/all] Error 2
make: *** [all] Error 2

当我查看 include_atlas.hpp 时，似乎 ARMA_USE_ATLAS 仍设置为 false:

// Copyright (C) 2008-2011 Conrad Sanderson
// Copyright (C) 2008-2011 NICTA (www.nicta.com.au)
// 
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.


#if defined(ARMA_USE_ATLAS)
  #if !defined(ARMA_ATLAS_INCLUDE_DIR)
    extern "C"
      {
      #include <cblas.h>
      #include <clapack.h>
      }
  #else
    #define ARMA_STR1(x) x
    #define ARMA_STR2(x) ARMA_STR1(x)

    #define ARMA_CBLAS   ARMA_STR2(ARMA_ATLAS_INCLUDE_DIR)ARMA_STR2(cblas.h)
    #define ARMA_CLAPACK ARMA_STR2(ARMA_ATLAS_INCLUDE_DIR)ARMA_STR2(clapack.h)

    extern "C"
      {
      #include ARMA_INCFILE_WRAP(ARMA_CBLAS)
      #include ARMA_INCFILE_WRAP(ARMA_CLAPACK)      // This is line no 26
      }

    #undef ARMA_STR1
    #undef ARMA_STR2
    #undef ARMA_CBLAS
    #undef ARMA_CLAPACK
  #endif
#endif

如果我将 ARMA_CLAPACK 替换为 "/usr/include/atlas/clapack.h"，它仍然会报错:

$ make
Scanning dependencies of target armadillo
[100%] Building CXX object CMakeFiles/armadillo.dir/src/wrapper.cpp.o
In file included from /home/dkumar/Downloads/armadillo-4.600.3/src/wrapper.cpp:10:0:
/home/dkumar/Downloads/armadillo-4.600.3/tmp/include/armadillo_bits/include_atlas.hpp:26:89: fatal error: "/usr/include/atlas/clapack.h": No such file or directory
    #include ARMA_INCFILE_WRAP("/usr/include/atlas/clapack.h")      // This is line no 26
                                                                                         ^
compilation terminated.
make[2]: *** [CMakeFiles/armadillo.dir/src/wrapper.cpp.o] Error 1
make[1]: *** [CMakeFiles/armadillo.dir/all] Error 2
make: *** [all] Error 2

Answer 1

在 cmake 之后运行 make 时我遇到了同样的问题。 当我检查 cmake 输出时它指向错误的 atlas 目录，即它指向 ATLAS_INCLUDE_DIR =/usr/include/，因为它应该指向 ATLAS_INCLUDE_DIR =/usr/include/atlas。

-- Found ATLAS: /usr/lib/libatlas.so
-- Found BLAS: /usr/lib/libblas.so
-- Found LAPACK: /usr/lib/liblapack.so
--      MKL_FOUND = NO
--   ACMLMP_FOUND = NO
--     ACML_FOUND = NO
-- OpenBLAS_FOUND = NO
--    ATLAS_FOUND = YES
--     BLAS_FOUND = YES
--   LAPACK_FOUND = YES
-- ATLAS_INCLUDE_DIR = /usr/include/
-- ARPACK_FOUND = NO
-- 
-- *** Armadillo wrapper library will use the following libraries:
-- *** ARMA_LIBS = /usr/lib/libatlas.so;/usr/lib/libblas.so;/usr/lib/liblapack.so

我通过在 CmakeCache.txt 文件中添加正确的路径来更正此问题。之后 make 和 make install 运行良好。

但是我在使用编译示例后运行时遇到了这个错误

g++   -O2   -o example1  example1.cpp  -larmadillo

错误是

./example1: error while loading shared libraries: libarmadillo.so.4: cannot open shared object file: No such file or directory

注意:上述错误可以通过在中创建libarmadillo.so和libarmadillo.so.4的符号链接(symbolic link)来解决>/usr/lib 目录。