CODEWITHSUNDEEP
linuxubuntunvidiacaffecudnn
dontloo
dontloo

Reputation: 10865

how do I update cuDNN to a newer version?

the cuDNN installation manual says

ALL PLATFORMS

Extract the cuDNN archive to a directory of your choice, referred to below as . Then follow the platform-specific instructions as follows.

LINUX

cd export LD_LIBRARY_PATH=`pwd`:$LD_LIBRARY_PATH

Add to your build and link process by adding -I to your compile line and -L -lcudnn to your link line.

It seems that it simply adds pwd to LD_LIBRARY_PATH, so I guess just replacing the files in pwd will do the update.

But it seems not that simple as after I've done this I got a complaint from Theano saying

cuDNN Version is too old. Update to v5, was 3007.

Upvotes: 9

Views: 40897

Answers (3)

youkaichao
youkaichao

Reputation: 2374

This is an old question, but now we have conda. We don't need to manually replace these files anymore. conda install cudnn does all the trick.

Upvotes: 7

dnzzcn
dnzzcn

Reputation: 163

I wrote a script which can be used to clean install a version of cuDNN or change the existing cuDNN to an older/a newer version. You can download the script from:

https://github.com/dnzzcn/cuDNNv

This is what the script does:

#!/bin/bash

rm -f /usr/include/cudnn.h
rm -f /usr/lib/x86_64-linux-gnu/*libcudnn*
rm -f /usr/local/cuda-*/lib64/*libcudnn*


cp -P packages/cudnn/include/cudnn.h /usr/include
cp -P packages/cudnn/lib64/libcudnn* /usr/lib/x86_64-linux-gnu/
chmod a+r /usr/lib/x86_64-linux-gnu/libcudnn*

rm -rf packages/cudnn

It performs the installation operations automatically for the version you need.

Upvotes: 9

dontloo
dontloo

Reputation: 10865

  1. replace cudnn.h in dir/cuda/include/
  2. remove the old library files in dir/cuda/lib64/
  3. add new library files to dir/cuda/lib64/

Upvotes: 11

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