compile the caffe #19
Comments
|
Sorry but we modified the official caffe for our project. So we rely on openmpi if you want to use multiple GPUs (we only use multi-gpu for testing, but not training). We also highly recommend you install cudnn v5. After downloading and extracting it, you need to replace the cmake .. -DUSE_MPI=ON -DCUDNN_INCLUDE=/usr/local/cuda/include -DCUDNN_LIBRARY=/usr/local/cuda/lib64/libcudnn.so |
|
Thanks,But according to my environment which has only one server with 4 GPUs，can I use the openmpi? |
|
Sure. You can change these two lines to mpirun -n 4 python2 tools/eval_test.py \
--gpu 0,1,2,3 \ |
|
um，thanks. |
|
Yes. It should be >= 1.55. |
A requested component was not found, or was unable to be opened. This Host: amax-1080
|
|
It seems that you have different versions of openmpi. Let's say if you compile openmpi and install it into a local directory like export PATH=/home/jxd/openmpi/bin:$PATH
export LD_LIBRARY_PATH=/home/jxd/openmpi/lib:$LD_LIBRARY_PATHRestart the terminal, |
|
Hello,I have successfully installed the openmpi,and test it that it can be used.Then I cmake the caffe successfully,but I still exist the questions above.So I try to do the training,it meets the same questions.
A requested component was not found, or was unable to be opened. This Host: amax-1080
|
|
Could you please check the output of the following commands: which mpirun
ldd $(which mpirun) | grep mpi
ldd caffe/build/install/bin/caffe | grep mpi |
|
yeah,maybe I do not cmake caffe successfully as there's no information about it ?
jxd@amax-1080: |
|
OK. You have another self-compiled openmpi installed at export PATH=/usr/local/openmpi/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/openmpi/lib:$LD_LIBRARY_PATHRestart the terminal, remove the build directory under caffe, and recompile it following the steps in the README file. |
|
Yes,I have added these lines to ~/.bashrc,and recompile it yesterday.Are there two openmpi installed in the system? |
|
Right. In your previous log, it complaints mca: base: component_find: unable to open /usr/lib/openmpi/lib/openmpi/mca_paffinity_hwloc: perhaps a missing symbol, or compiled for a different version of Open MPI? (ignored)So you have a system-installed openmpi at |
|
thanks a lot!
all detection: |
|
Good to hear that! Will close the issue for now, and please feel free to reopen it if there are further problems. |
hello,when I run the make -j8 && make install，it shows the error following:
[ 87%] [ 88%] make[2]: *** No rule to make target
/path/to/cudnn/lib64/libcudnn.so', needed bylib/libcaffe.so'. Stop.make[2]: *** Waiting for unfinished jobs....
Building CXX object src/caffe/CMakeFiles/caffe.dir/data_transformer.cpp.o
Building CXX object src/caffe/CMakeFiles/caffe.dir/syncedmem.cpp.o
make[1]: *** [src/caffe/CMakeFiles/caffe.dir/all] Error 2
make: *** [all] Error 2
I wonder if it is the error of the path?
Another question:
Can I unuse the "cudnn"and "openmpi"?I only have one server but have 4 gpus，Ｉwonder if I can use the "-gpu al" to replace the "openmpi".
thanks!
The text was updated successfully, but these errors were encountered: