cudnn v2.5.48 and data structures from cudnn v3

[RadekSimkanic]

I was problem with compilation:

CXX src/caffe/layer_factory.cpp
In file included from src/caffe/layer_factory.cpp:11:0:
./include/caffe/vision_layers.hpp:310:3: error: ‘cudnnConvolutionBwdFilterAlgo_t’ does not name a type
   cudnnConvolutionBwdFilterAlgo_t *bwd_filter_algo_;
   ^
./include/caffe/vision_layers.hpp:311:3: error: ‘cudnnConvolutionBwdDataAlgo_t’ does not name a type
   cudnnConvolutionBwdDataAlgo_t *bwd_data_algo_;
   ^
./include/caffe/vision_layers.hpp:477:3: error: ‘cudnnLRNDescriptor_t’ does not name a type
   cudnnLRNDescriptor_t norm_desc_;
   ^
./include/caffe/vision_layers.hpp:504:3: error: ‘cudnnLRNDescriptor_t’ does not name a type
   cudnnLRNDescriptor_t norm_desc_;
   ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetLRNLayer(const caffe::LayerParameter&)’:
src/caffe/layer_factory.cpp:94:44: error: ‘CUDNN_LRN_MAX_N’ was not declared in this scope
       if (param.lrn_param().local_size() > CUDNN_LRN_MAX_N) {
                                            ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetTanHLayer(const caffe::LayerParameter&) [with Dtype = double]’:
src/caffe/layer_factory.cpp:196:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetTanHLayer(const caffe::LayerParameter&) [with Dtype = float]’:
src/caffe/layer_factory.cpp:196:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetSoftmaxLayer(const caffe::LayerParameter&) [with Dtype = double]’:
src/caffe/layer_factory.cpp:173:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetSoftmaxLayer(const caffe::LayerParameter&) [with Dtype = float]’:
src/caffe/layer_factory.cpp:173:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetSigmoidLayer(const caffe::LayerParameter&) [with Dtype = double]’:
src/caffe/layer_factory.cpp:150:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetSigmoidLayer(const caffe::LayerParameter&) [with Dtype = float]’:
src/caffe/layer_factory.cpp:150:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetReLULayer(const caffe::LayerParameter&) [with Dtype = double]’:
src/caffe/layer_factory.cpp:127:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetReLULayer(const caffe::LayerParameter&) [with Dtype = float]’:
src/caffe/layer_factory.cpp:127:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetLRNLayer(const caffe::LayerParameter&) [with Dtype = double]’:
src/caffe/layer_factory.cpp:104:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetLRNLayer(const caffe::LayerParameter&) [with Dtype = float]’:
src/caffe/layer_factory.cpp:104:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetPoolingLayer(const caffe::LayerParameter&) [with Dtype = double]’:
src/caffe/layer_factory.cpp:67:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetPoolingLayer(const caffe::LayerParameter&) [with Dtype = float]’:
src/caffe/layer_factory.cpp:67:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetConvolutionLayer(const caffe::LayerParameter&) [with Dtype = double]’:
src/caffe/layer_factory.cpp:39:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
src/caffe/layer_factory.cpp: In function ‘boost::shared_ptr<caffe::Layer<Dtype> > caffe::GetConvolutionLayer(const caffe::LayerParameter&) [with Dtype = float]’:
src/caffe/layer_factory.cpp:39:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
Makefile:544: recipe for target '.build_release/src/caffe/layer_factory.o' failed
make: *** [.build_release/src/caffe/layer_factory.o] Error 1

Source code of Caffe contains data structures used in cudnn v3. It would be worthwhile to mention in instruction of install. Eventually source code update for both version cudnn (v2 and v3) via flag.

I had modify source code via commit:
ecac7ff?diff=unified

[shelhamer]

Noted in install docs by #3218. Thanks for reporting.

[RadekSimkanic]

Somebody should change this:
http://caffe.berkeleyvision.org/installation.html

[shelhamer]

What should be changed? The page was updated in #3218 but PRs for further doc changes are welcome.

[RadekSimkanic]

Sorry for mystification. It is also necessary to change version of CUDA:

CUDA is required for GPU mode.

• library version 7.0 and the latest driver version are recommended~~, but 6.* is fine too~~

because CUDNN v3 needs CUDA v7+.

I and some other people would welcome the branch (e.g.: master-cudnn-2) with old source code where is available use CUDNN v2.5.48

[RadekSimkanic]

I created modification for CUDNN v2.5.48 for people who need it:
https://github.com/RadekSimkanic/caffe-for-cudnn-v2.5.48

[luoxingcheng]

I have the same question with you.Did you solve it?

[RadekSimkanic]

Maybe I don't understand you. Did you try modified version of caffe for cudnn 2.5.48?
https://github.com/RadekSimkanic/caffe-for-cudnn-v2.5.48
Eventually tell more about your problem.

[RadekSimkanic]

I just have to warn, this version don't have implemented new things.