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ab010cf4
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ab010cf4
authored
7月 26, 2011
作者:
Frederic Bastien
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introduction.txt
doc/hpcs2011_tutorial/introduction.txt
+30
-13
theano.txt
doc/hpcs2011_tutorial/theano.txt
+0
-17
没有找到文件。
doc/hpcs2011_tutorial/introduction.txt
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ab010cf4
...
@@ -10,7 +10,7 @@ Theano motivations
...
@@ -10,7 +10,7 @@ Theano motivations
------------------
------------------
Theano tries to be the **holy grail** in computing: *easy to code* and *it fast to execute* !
Theano tries to be the **holy grail** in computing: *easy to code* and *it fast to execute* !
i
t works only on mathematical expressions, so you won't have:
I
t works only on mathematical expressions, so you won't have:
- Function call inside a theano function
- Function call inside a theano function
- Structure, enum
- Structure, enum
...
@@ -26,17 +26,34 @@ Theano status
...
@@ -26,17 +26,34 @@ Theano status
Why you can rely on Theano:
Why you can rely on Theano:
- Theano has been developed and used since January 2008 (3.5 yrs old)
- Theano has been developed and used since January 2008 (3.5 yrs old)
- Core technology for a funded Silicon-Valley startup
- Core technology for a funded Silicon-Valley startup
- Driven over 40 research papers in the last few years
- Driven over 40 research papers in the last few years
- Good user documentation
- Good user documentation
- Active mailing list with participants from outside our lab
- Active mailing list with participants from outside our lab
- Many contributors (some from outside our lab)
- Many contributors (some from outside our lab)
- Used to teach IFT6266 for two years
- Used to teach IFT6266 for two years
- Used by everyone in our lab (\textasciitilde 30 people)
- Used by everyone in our lab (~ 30 people)
- Deep Learning Tutorials
- Deep Learning Tutorials
- Unofficial RPMs for Mandriva
- Unofficial RPMs for Mandriva
- Downloads (June 8 2011, since last January): Pypi 780, MLOSS: 483, Assembla (`bleeding edge` repository): unknown
- Downloads (June 8 2011, since last January): Pypi 780, MLOSS: 483, Assembla (`bleeding edge` repository): unknown
Why Theano is better ?
----------------------
Executing the code is faster because Theano:
- Rearranges high-level expressions
- Produces customized low-level code
- Uses a variety of backend technologies (GPU,...)
Writing the code is faster because:
- High-level language allows to **concentrate on the algorithm**
- Theano do **automatic optimization**
- No need to manually optimize for each algorithm you want to test
- Theano do **automatic efficient symbolic differentiation**
- No need to manually differentiate your functions (tedious & error-prone for complicated expressions!)
Why scripting for GPUs ?
Why scripting for GPUs ?
------------------------
------------------------
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@@ -65,7 +82,7 @@ Why scripting for GPUs ?
...
@@ -65,7 +82,7 @@ Why scripting for GPUs ?
**Scripting for GPUs?**
**Scripting for GPUs?**
They *Complement each other*
They *Complement each other*
:
- GPUs are everything that scripting/high level languages are not
- GPUs are everything that scripting/high level languages are not
...
...
doc/hpcs2011_tutorial/theano.txt
浏览文件 @
ab010cf4
...
@@ -49,23 +49,6 @@ Description
...
@@ -49,23 +49,6 @@ Description
- The project was started by James Bergstra and Olivier Breuleux
- The project was started by James Bergstra and Olivier Breuleux
- For the past 1-2 years, I have replaced Olivier as lead contributor
- For the past 1-2 years, I have replaced Olivier as lead contributor
Why Theano is better ?
----------------------
Executing the code is faster because Theano:
- Rearranges high-level expressions
- Produces customized low-level code
- Uses a variety of backend technologies (GPU,...)
Writing the code is faster because:
- High-level language allows to **concentrate on the algorithm**
- Theano do **automatic optimization**
- No need to manually optimize for each algorithm you want to test
- Theano do **automatic efficient symbolic differentiation**
- No need to manually differentiate your functions (tedious & error-prone for complicated expressions!)
Simple example
Simple example
--------------
--------------
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