How do I upgrade from Caffe 0.12 to 0.13?

Tony C

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Jul 20, 2015, 9:26:10 PM7/20/15

to digits...@googlegroups.com

I built Caffe and DIGITS a few days ago and everything is working fine. I used the master versions of both projects (presumably v0.12 and v2.00 respectively).

Now I see that Caffe 0.13 is available but is not incorporated into the master version yet. How do I install it and get DIGITS to work
with it? Is it a simple matter of cloning 0.13 into a new folder, compiling it, and then setting a new Caffe path?

I'm also not sure about upgrading cuDNN to v3. How do you do that? Do you keep the old version?

I'm just a bit afraid that I may break the current installation if I go ahead without some guidance.

I'm not really used to git. The "master" doesn't seem to have the concept of a version number. Strange.

Luke Yeager

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Jul 20, 2015, 9:42:50 PM7/20/15

to digits...@googlegroups.com, tony.a...@gmail.com

The only real reason to upgrade from v0.12 to v0.13 is to take advantage of cuDNN v3. But cuDNN v3 isn't released publicly quite yet.

We will be releasing a release candidate very soon, which is why I've already mentioned it in the documentation. Sorry, but you'll have to wait a little while :/

I'm not really used to git. The "master" doesn't seem to have the concept of a version number. Strange.

You shouldn't really be using master on our fork. Either grab the latest v0.12 version by pulling the branch:

git checkout -b caffe-0.12 -t origin/caffe-0.12

git pull

Or grab a specific tag:

git checkout v0.12.2

You may need to do a "git fetch" first to pull the latest version from GitHub.

Tony C

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Jul 22, 2015, 7:57:23 PM7/22/15

to DIGITS Users, tony.a...@gmail.com

OK, I confess. I downloaded CUDA 7.5RC. I got confused between that and cuDNN v3.

I'm not sure where CUDA fits in with DIGITS. I haven't installed it yet. Not sure if I should - may be best to wait for the actual release.

Luke Yeager

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Jul 22, 2015, 8:15:07 PM7/22/15

to DIGITS Users, tony.a...@gmail.com, tony.a...@gmail.com

Ok, now we're talking about 4 different pieces of software:

DIGITS - you want v2.0

Caffe - you want v0.12

cuDNN - you want v2 (expected by Caffe v0.12)

CUDA - v7.0 is fine, you won't see get any benefit in DIGITS from upgrading to v7.5

If you download the DIGITS 2 installer from DevZone, it comes with all of the above.

Tony C

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Aug 4, 2015, 6:39:48 PM8/4/15

to DIGITS Users

A release candidate for cuDNN v3 has been released. So given that I have

DIGITS v2
Caffe 0.12
cuDNN v2
CUDA v7

what is my best approach to getting the BIG performance benefits from v3 without risking breaking the existing system?

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