Python 使用cuda 7.0在ubuntu 14.04中安装pycuda

我正在尝试用cuda 7.0安装pycuda没有问题，运行代码很好，但在安装pycuda后，我无法安装并运行pycuda，请尝试使用pycuda运行简单代码。简单代码为

import pycuda.driver as cuda
import pycuda.autoinit
from pycuda.compiler import SourceModule
import numpy

mod = SourceModule("""
___global___ void doublify(float *a)
{
   int idx= threadIdx.x + threadIdx.y*4;
   a[idx] *= 2;
}
""")
a = numpy.random.randn(4,4)
a = a.astype(numpy.float32)
a_gpu = cuda.mem_alloc(a.nbytes)
cuda.memcpy_htod(a_gpu,a)

func = mod.get_function("doublify")
func(a_gpu, block=(4,4,1))

a_doubled = numpy.empty_like(a)
cuda.memcpy_dtoh(a_doubled, a_gpu)
print a_doubled
print a

但代码未运行并显示此错误

Traceback (most recent call last):
File "/home/pupuol/Documents/educuda.py", line 3, in <module>
import pycuda . autoinit
File "/usr/local/lib/python2.7/dist-packages/pycuda-2015.1.3-py2.7-    linux-x86_64.egg/pycuda/autoinit.py", line 2, in <module>
import pycuda.driver as cuda
File "/usr/local/lib/python2.7/dist-packages/pycuda-2015.1.3-py2.7-    linux-x86_64.egg/pycuda/driver.py", line 5, in <module>
from pycuda._driver import *  # noqa
ImportError: libcurand.so.7.0: cannot open shared object file: No such    file or directory

回溯（最近一次呼叫最后一次）：
文件“/home/pupuol/Documents/educuda.py”，第3行，在
输入pycuda。自动初始化
文件“/usr/local/lib/python2.7/dist packages/pycuda-2015.1.3-py2.7-linux-x86_64.egg/pycuda/autoinit.py”，第2行，在
将pycuda.driver导入为cuda
文件“/usr/local/lib/python2.7/dist packages/pycuda-2015.1.3-py2.7-linux-x86_64.egg/pycuda/driver.py”，第5行，在
来自pycuda._驱动程序导入*#noqa
ImportError:libcurand.so.7.0:无法打开共享对象文件：没有此类文件或目录

---

请帮助我

这似乎是一个库路径问题。 在运行python之前，请尝试此操作

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/cuda/lib64
# or somewhere else your cuda library is located