Question

操作系统：OSX 10.11.4

GPU：GeForce GT 750M，CUDA7.5

语言：Python Anaconda 2.7

我已按照theano的说明在我的Mac上设置CUDA：

设置路径：导出路径= / Developer / NVIDIA / CUDA-7.5 / bin：$ PATH
设置LD_LIBRARY_PATH：export LD_LIBRARY_PATH = / Developer / NVIDIA / CUDA-7.5 / lib：$ LD_LIBRARY_PATH
创建.theanorc文件并在[cuda]部分添加CUDA_ROOT = / Developer / NVIDIA / CUDA-7.5

我从theano网站复制了代码并将其粘贴到test.py文件中：

from theano import function, config, shared, sandbox
import theano.tensor as T
import numpy
import time

vlen = 10 * 30 * 768  # 10 x #cores x # threads per core
iters = 1000

rng = numpy.random.RandomState(22)
x = shared(numpy.asarray(rng.rand(vlen), config.floatX))
f = function([], T.exp(x))
print(f.maker.fgraph.toposort())
t0 = time.time()
for i in range(iters):
    r = f()
t1 = time.time()
print("Looping %d times took %f seconds" % (iters, t1 - t0))
print("Result is %s" % (r,))
if numpy.any([isinstance(x.op, T.Elemwise) for x in f.maker.fgraph.toposort()]):
    print('Used the cpu')
else:
    print('Used the gpu')

但是当我跑这条线时：

THEANO_FLAGS='floatX=float32,device=gpu0,nvcc.fastmath=True' python test.py

我收到了这个错误：

nvcc fatal: The version ('70300') of the host compiler ('Apple clang') is not supported

并且警告如下：

WARNING (theano.sandbox.cuda): CUDA is installed, but device gpu0 is not available (error: cuda unavailable)

是不是因为我的Xcode版本（版本7.3）？如何解决这个问题？

Answer 1

我修复了这个错误：“nvcc致命：版本（'70300'）..”为OSX 10.11.4安装最新版本的CUDA SDK 7.5.27

如何在OSX上使用带有GPU的theano？

1 个答案: