Torch profiler

[KING CHUNG HO]

Is there a performance (e.g., speed) profiler in torch, similar to the one in Cuda (nvprof)?

[Andreas Köpf]

Is there a performance (e.g., speed) profiler in torch, similar to the one in Cuda (nvprof)?

You might try one listed here: http://lua-users.org/wiki/ProfilingLuaCode

And there seems also to be a basic profiler in xlua (which is loaded by th by default).

[KING CHUNG HO]

Thanks. Interesting, Lua Profilor seems work. So there is no particular profiler provided by Torch?

[Andreas Köpf]

Probably obvious, but you can of course use nvprof to look at the GPU aspects of your torch code.
Torch is using luajit, so every lua profiler based on the lua-debug api would work. If you installed torch with the ezinstall method it comes with luarocks and installing e.g. 'luaprofiler' can be done by executing 'luarocks install luaprofiler'.


[KING CHUNG HO]

Great, thanks!

[Andreas Köpf]

Sry, there is indeed a simple 'built-in' profiler that comes with luajit available with the -jp cmd line arg, see http://agentzh.org/misc/code/luajit2/jit/p.lua.html

[KING CHUNG HO]

Sweet! Thanks.

[Eugenio Culurciello]

We use this one:

https://github.com/e-lab/Torch7-profiling

To profile all kind of network and performance

[Adam Erickson]

Thank you, Eugenio! This is a very nice tool. Are there any other very important tools like this that Torch users should have?

Cheers,

Adam

[Martin Delgado]

Hi, may I ask a naive question.

How do you install it? Simply download to

~/torch/install

and you're ready to go?

Or do you need to use

luarocks make or luarocks build?

Thanks!

[Jonghoon Jin]

you dont need to install it. just run

git clone https://github.com/e-lab/Torch7-profiling.git .
th profile-model.lua --model models/alexnetowt.lua --res 1x3x231x231

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[Martin Delgado]

@Jonghoon Jin

Thanks a lot for the clarification!

On Thursday, August 25, 2016 at 10:22:28 AM UTC+1, Jonghoon Jin wrote:

you dont need to install it. just run

git clone https://github.com/e-lab/Torch7-profiling.git .
th profile-model.lua --model models/alexnetowt.lua --res 1x3x231x231

On Thu, Aug 25, 2016 at 1:22 AM, Martin Delgado via torch7 wrote:

Hi, may I ask a naive question.

How do you install it? Simply download to

~/torch/install

and you're ready to go?

Or do you need to use

luarocks make or luarocks build?

Thanks!


On Thursday, September 24, 2015 at 12:26:01 AM UTC+1, Eugenio Culurciello wrote:

We use this one:

https://github.com/e-lab/Torch7-profiling

To profile all kind of network and performance

On Wednesday, September 23, 2015 at 12:19:34 PM UTC-4, KING CHUNG HO wrote:

Is there a performance (e.g., speed) profiler in torch, similar to the one in Cuda (nvprof)?

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[Martin Delgado]

@Jonghoon Jin

When I run it the way you suggested I get the following error

torch/install/share/lua/5.1/trepl/init.lua:384: module 'opts' not found:No LuaRocks module found for opts
no field package.preload['opts']

Searching for

luarocks search opts

didn't return anything

Am I missing some package?

[Sitao Huang]

Hi, 

What's the final conclusion? I tried the Lua Profiler, but it fails on some system calls, such as "print" and "new" functions. 

The torch code uses both CPU and GPU (cuTorch, cudnn). I wonder if there is such a profiler that supports such code. 

Thanks!