异常：版本不匹配：这是 'cffi' 包版本 1.13.1，
Exception: Version mismatch: this is the 'cffi' package version 1.13.1,
我尝试 运行 使用 CUDA 的代码，我得到了这个错误，系统似乎有问题
完整代码：我知道了CUDACast #10a - Your First CUDA Python Program and
import numpy as np
from timeit import default_timer as timer
from numba import vectorize
@vectorize(["float32(float32, float32)"], target='cuda')
def VectorAdd(a, b):
return a + b
def main():
N = 32000000
A = np.ones(N, dtype=np.float32)
B = np.ones(N, dtype=np.float32)
C = np.zeros(N, dtype=np.float32)
start = timer()
C = VectorAdd(A, B)
vectoradd_timer = timer() - start
print("C[:5] = " + str(C[:5]))
print("C[-5:] = " + str(C[-5:]))
print("VectorAdd took %f seconds" % vectoradd_timer)
if __name__ == '__main__':
main()
输出：
Exception: Version mismatch: this is the 'cffi' package version
1.13.1, located in '/usr/local/lib/python2.7/dist-packages/cffi/api.pyc'. When we import
the top-level '_cffi_backend' extension module, we get version 1.5.2,
located in
'/usr/lib/python2.7/dist-packages/_cffi_backend.x86_64-linux-gnu.so'.
The two versions should be equal; check your installation.
可能是这个原因：
$which pip
/usr/bin/pip
您必须尝试分别删除所有 cffi 软件包并安装版本 1.5.2。
sudo pip install cffi==1.5.2
或者您可以通过更新旧版本来确保版本一致
sudo apt-get install python-cffi
希望对你有帮助
我尝试 运行 使用 CUDA 的代码，我得到了这个错误，系统似乎有问题
完整代码：我知道了CUDACast #10a - Your First CUDA Python Program and
import numpy as np
from timeit import default_timer as timer
from numba import vectorize
@vectorize(["float32(float32, float32)"], target='cuda')
def VectorAdd(a, b):
return a + b
def main():
N = 32000000
A = np.ones(N, dtype=np.float32)
B = np.ones(N, dtype=np.float32)
C = np.zeros(N, dtype=np.float32)
start = timer()
C = VectorAdd(A, B)
vectoradd_timer = timer() - start
print("C[:5] = " + str(C[:5]))
print("C[-5:] = " + str(C[-5:]))
print("VectorAdd took %f seconds" % vectoradd_timer)
if __name__ == '__main__':
main()
输出：
Exception: Version mismatch: this is the 'cffi' package version 1.13.1, located in '/usr/local/lib/python2.7/dist-packages/cffi/api.pyc'. When we import the top-level '_cffi_backend' extension module, we get version 1.5.2, located in '/usr/lib/python2.7/dist-packages/_cffi_backend.x86_64-linux-gnu.so'. The two versions should be equal; check your installation.
可能是这个原因：
$which pip
/usr/bin/pip
您必须尝试分别删除所有 cffi 软件包并安装版本 1.5.2。
sudo pip install cffi==1.5.2
或者您可以通过更新旧版本来确保版本一致
sudo apt-get install python-cffi
希望对你有帮助