转载请注明出处:
http://www.cnblogs.com/darkknightzh/p/6030232.html
参考网址:
https://github.com/torch/cutorch/issues/210
https://github.com/torch/cutorch/issues/425
https://developer.nvidia.com/cuda-downloads
http://tieba.baidu.com/p/4210823766
https://github.com/torch/cutorch
https://github.com/torch/cutorch
https://github.com/torch/cutorch/issues/480
https://github.com/soumith/cudnn.torch/issues/279
说明:最好直接安装lua5.2,而后torch,cutorch,cunn等都安装新版本的,否则可能有冲突。
前几天重新安装了最新的显卡驱动,结果今天使用torch的require ‘cutorch’时,报错(类似下面的信息):
cannot load torch/install/lib/lua/5.1/libcutorch.so
https://github.com/torch/cutorch/issues/210说要重新安装cutorch,使用luarocks install cutorch后,又提示Specify CUDA_TOOLKIT_ROOT_DIR,如下:
网上一搜,https://github.com/torch/cutorch/issues/425说是没有安装cuda。。。
1. 由于之前重装显卡驱动时,已经将cuda删除了。因而此时需要重新安装cuda。索性安装cuda8.0。官网https://developer.nvidia.com/cuda-downloads下载ubuntu16.04的版本。之后按照官网说明,在终端中输入:
sudo dpkg -i cuda-repo-ubuntu1604---local_8.0.44-1_amd64.deb
sudo apt-get update
sudo apt-get install cuda
2. 此时直接在终端中输入nvcc --version时,还是会提示找不到nvcc。http://tieba.baidu.com/p/4210823766中9楼指出,需要添加环境变量。在终端中输入gedit .bashrc,最后添加(最后一个不确定是否需要添加):
export PATH=/usr/local/cuda-8.0/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/cuda-8.0/lib64:$LD_LIBRARY_PATH
export CUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda-8.0:$CUDA_TOOLKIT_ROOT_DIR
重启后,输入nvcc --version,成功:
3. 下载cutorch,网址:https://github.com/torch/cutorch
4. 终端定位到该文件夹内,而后输入:
luarocks install rocks/cutorch-1.0-.rockspec
等待安装完成。
说明:rocks文件夹内有cutorch-1.0-0.rockspec和cutorch-scm-1.rockspec两个文件。如果使用如下命令:
luarocks install rocks/cutorch-scm-1.rockspec
会提示:
1 error detected in the compilation of "/tmp/tmpxft_00000c32_00000000-7_THCTensorMath.cpp1.ii".
CMake Error at THC_generated_THCTensorMath.cu.o.cmake:267 (message):
Error generating file
/tmp/luarocks_cutorch-scm-1-1850/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCTensorMath.cu.o lib/THC/CMakeFiles/THC.dir/build.make:105: recipe for target 'lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMath.cu.o' failed
make[2]: *** [lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMath.cu.o] Error 1
make[2]: *** 正在等待未完成的任务....
/tmp/luarocks_cutorch-scm-1-1850/cutorch/lib/THC/THCTensorMathReduce.cuh(471): error: identifier "TH_INDEX_BASE" is undefined /tmp/luarocks_cutorch-scm-1-1850/cutorch/lib/THC/THCTensorMathReduce.cuh(552): error: identifier "TH_INDEX_BASE" is undefined 2 errors detected in the compilation of "/tmp/tmpxft_00000c45_00000000-5_THCTensorMath2.cpp4.ii".
CMake Error at THC_generated_THCTensorMath2.cu.o.cmake:267 (message):
Error generating file
/tmp/luarocks_cutorch-scm-1-1850/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCTensorMath2.cu.o lib/THC/CMakeFiles/THC.dir/build.make:112: recipe for target 'lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMath2.cu.o' failed
make[2]: *** [lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMath2.cu.o] Error 1
/tmp/luarocks_cutorch-scm-1-1850/cutorch/lib/THC/THCTensorMathReduce.cuh(471): error: identifier "TH_INDEX_BASE" is undefined /tmp/luarocks_cutorch-scm-1-1850/cutorch/lib/THC/THCTensorMathReduce.cuh(552): error: identifier "TH_INDEX_BASE" is undefined 2 errors detected in the compilation of "/tmp/tmpxft_00000cd5_00000000-5_THCTensorMathScan.cpp4.ii".
CMake Error at THC_generated_THCTensorMathScan.cu.o.cmake:267 (message):
Error generating file
/tmp/luarocks_cutorch-scm-1-1850/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCTensorMathScan.cu.o lib/THC/CMakeFiles/THC.dir/build.make:147: recipe for target 'lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMathScan.cu.o' failed
make[2]: *** [lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMathScan.cu.o] Error 1
/tmp/luarocks_cutorch-scm-1-1850/cutorch/lib/THC/THCTensorMathReduce.cuh(471): error: identifier "TH_INDEX_BASE" is undefined /tmp/luarocks_cutorch-scm-1-1850/cutorch/lib/THC/THCTensorMathReduce.cuh(552): error: identifier "TH_INDEX_BASE" is undefined 2 errors detected in the compilation of "/tmp/tmpxft_00000cc9_00000000-5_THCTensorMathReduce.cpp4.ii".
CMake Error at THC_generated_THCTensorMathReduce.cu.o.cmake:267 (message):
Error generating file
/tmp/luarocks_cutorch-scm-1-1850/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCTensorMathReduce.cu.o lib/THC/CMakeFiles/THC.dir/build.make:140: recipe for target 'lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMathReduce.cu.o' failed
make[2]: *** [lib/THC/CMakeFiles/THC.dir/THC_generated_THCTensorMathReduce.cu.o] Error 1
CMakeFiles/Makefile2:172: recipe for target 'lib/THC/CMakeFiles/THC.dir/all' failed
make[1]: *** [lib/THC/CMakeFiles/THC.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2 Error: Build error: Failed building.
https://github.com/torch/cutorch/issues/480指出,需要更新torch,nn,cunn等。懒得更新了,因而就使用老版本的了。
5. 此时再require ‘cutorch’便不会出错。
6. 此时若要使用cunn,还是会报错:
在官网下载cunn:https://github.com/torch/cunn,并安装cunn-1.0-0.rockspec:
luarocks install cunn-1.0-.rockspec
此处若安装新的cunn-scm-1.rockspec,也会报错:
安装完之后,require ‘cunn’成功。
7. 之后require ‘cudnn’再次遇到问题。重装之后,require时,会提示:
attempt to call field 'hasFastHalfInstructions' (a nil value)
https://github.com/soumith/cudnn.torch/issues/279指出,需要更新lua到5.2。
暂时不使用cndnn了,不更新了。重新配置起来太麻烦了。。。