我同时安装了 BLAS 和 OpenBLAS:
$ dpkg -l \*blas\* | grep ^i
ii libblas-dev 1.2.20110419-7 amd64 Basic Linear Algebra Subroutines 3, static library
ii libblas3 1.2.20110419-7 amd64 Basic Linear Algebra Reference implementations, shared library
ii libopenblas-base 0.2.8-6ubuntu1 amd64 Optimized BLAS (linear algebra) library based on GotoBLAS2
ii libopenblas-dev 0.2.8-6ubuntu1 amd64 Optimized BLAS (linear algebra) library based on GotoBLAS2
但是,NumPy 仍然说 OpenBLAS 不可用:
>> np.__config__.show()
blas_info:
libraries = ['blas']
library_dirs = ['/usr/lib']
language = f77
lapack_info:
libraries = ['lapack']
library_dirs = ['/usr/lib']
language = f77
atlas_threads_info:
NOT AVAILABLE
blas_opt_info:
libraries = ['blas']
library_dirs = ['/usr/lib']
language = f77
define_macros = [('NO_ATLAS_INFO', 1)]
atlas_blas_threads_info:
NOT AVAILABLE
openblas_info:
NOT AVAILABLE
lapack_opt_info:
libraries = ['lapack', 'blas']
library_dirs = ['/usr/lib']
language = f77
define_macros = [('NO_ATLAS_INFO', 1)]
atlas_info:
NOT AVAILABLE
lapack_mkl_info:
NOT AVAILABLE
blas_mkl_info:
NOT AVAILABLE
atlas_blas_info:
NOT AVAILABLE
mkl_info:
NOT AVAILABLE
我怎样才能解决这个问题?
我不认为我可以卸载libblas3
,因为很多东西都依赖于它,包括libblas-dev
,甚至libopenblas-dev
依赖于它。
我试过
$ sudo apt-get install --reinstall python-numpy
但这没有帮助。
这尤其令人惊讶,因为链接到 OpenBLAS的所有*.so
文件:numpy
$ ldd `find /usr/lib/python2.7/dist-packages/numpy -name \*\.so` | grep libblas
libblas.so.3 => /usr/lib/libblas.so.3 (0x00007fba2ac96000)
libblas.so.3 => /usr/lib/libblas.so.3 (0x00007f04f7f54000)
libblas.so.3 => /usr/lib/libblas.so.3 (0x00007f9a941a9000)
$ ls -l /usr/lib/libblas.so.3 /etc/alternatives/libblas.so.3
lrwxrwxrwx 1 root root 35 Oct 22 2014 /etc/alternatives/libblas.so.3 -> /usr/lib/openblas-base/libblas.so.3
lrwxrwxrwx 1 root root 30 Oct 6 2014 /usr/lib/libblas.so.3 -> /etc/alternatives/libblas.so.3