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Code Issues Projects Releases Wiki Activity

2020-10-19 21:08:55

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2020-10-19 21:08:55 +08:00
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@@ -10,7 +10,7 @@
首先是用 `anaconda` 安装 `theano`：
```
```py
conda install mingw libpython
pip install theano
```
@@ -55,39 +55,39 @@ Cuda 的版本与电脑的显卡兼容。
In [1]:
```
```py
%%file test_theano.py
from theano import config
print 'using device:', config.device
```
```
```py
Writing test_theano.py
```
我们可以通过临时设置环境变量 `THEANO_FLAGS` 来改变 `theano` 的运行模式，在 linux 下，临时环境变量直接用：
```
```py
THEANO_FLAGS=xxx
```
就可以完成，设置完成之后，该环境变量只在当前的命令窗口有效，你可以这样运行你的代码：
```
```py
THEANO_FLAGS=xxx python <your script>.py
```
在 `Windows` 下，需要使用 `set` 命令来临时设置环境变量，所以运行方式为：
```
```py
set THEANO_FLAGS=xxx && python <your script>.py
```
In [2]:
```
```py
import sys
if sys.platform == 'win32':
@@ -97,14 +97,14 @@ else:
```
```
```py
using device: cpu
```
In [3]:
```
```py
if sys.platform == 'win32':
!set THEANO_FLAGS=mode=FAST_RUN,device=gpu,floatX=float32 && python test_theano.py
else:
@@ -112,7 +112,7 @@ else:
```
```
```py
Using gpu device 0: Tesla C2075 (CNMeM is disabled)
using device: gpu
@@ -122,7 +122,7 @@ using device: gpu
In [4]:
```
```py
%%file test_theano.py
from theano import function, config, shared, sandbox
@@ -150,14 +150,14 @@ else:
```
```
```py
Overwriting test_theano.py
```
In [5]:
```
```py
if sys.platform == 'win32':
!set THEANO_FLAGS=mode=FAST_RUN,device=cpu,floatX=float32 && python test_theano.py
else:
@@ -165,7 +165,7 @@ else:
```
```
```py
Looping 1000 times took 3.498123 seconds
Result is [ 1.23178029 1.61879337 1.52278066 ..., 2.20771813 2.29967761
1.62323284]
@@ -175,7 +175,7 @@ Used the cpu
In [6]:
```
```py
if sys.platform == 'win32':
!set THEANO_FLAGS=mode=FAST_RUN,device=gpu,floatX=float32 && python test_theano.py
else:
@@ -183,7 +183,7 @@ else:
```
```
```py
Using gpu device 0: Tesla C2075 (CNMeM is disabled)
Looping 1000 times took 0.847006 seconds
Result is [ 1.23178029 1.61879349 1.52278066 ..., 2.20771813 2.29967761
@@ -198,7 +198,7 @@ Used the gpu
In [7]:
```
```py
%%file test_theano.py
from theano import function, config, shared, sandbox
@@ -228,14 +228,14 @@ else:
```
```
```py
Overwriting test_theano.py
```
In [8]:
```
```py
if sys.platform == 'win32':
!set THEANO_FLAGS=mode=FAST_RUN,device=gpu,floatX=float32 && python test_theano.py
else:
@@ -243,7 +243,7 @@ else:
```
```
```py
Using gpu device 0: Tesla C2075 (CNMeM is disabled)
Looping 1000 times took 0.318359 seconds
Result is <CudaNdarray object at 0x7f7bb701fb70>
@@ -255,7 +255,7 @@ Used the gpu
In [9]:
```
```py
!rm test_theano.py
```
@@ -266,7 +266,7 @@ In [9]:
例如我现在的 .theanorc.txt 配置为：
```
```py
[global]
device = gpu
floatX = float32