操作系统：OSX 10.11.4
GPU：GeForce GT 750M，CUDA7.5
语言：Python Anaconda 2.7
我按照theano的说明在我的Mac上设置了CUDA：
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set PATH：export PATH = / Developer / NVIDIA / CUDA-7.5 / bin：$ PATH
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set LD_LIBRARY_PATH：export LD_LIBRARY_PATH = / Developer / NVIDIA / CUDA-7.5 / lib：$ LD_LIBRARY_PATH
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创建了一个.theanorc文件并在[cuda]部分添加了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')
但是当我运行这一行时：
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
并且警告看起来像这样：
WARNING (theano.sandbox.cuda): CUDA is installed, but device gpu0 is not available (error: cuda unavailable)
这是因为我的Xcode版本（版本7.3）？如何解决这个问题呢？
1 回答
我修复了这个错误：“nvcc致命：版本（'70300'）..”安装最新版本的CUDA SDK 7.5.27，用于OSX 10.11.4