Hi,
when I issue the command, as listed on the website:
conda install pytorch-cpu torchvision -c pytorch
I would expect the package pytorch and all the cuda dependencies to NOT be installed. However, they are being installed, pytorch cuda and all the other larger packages:
341.21s$ conda install -c pytorch pytorch-cpu torchvision
Solving environment: done
## Package Plan ##
  environment location: /home/travis/build/TwentyBN/tyqoon/miniconda
  added / updated specs: 
    - pytorch-cpu
    - torchvision
The following packages will be downloaded:
    package                    |            build
    ---------------------------|-----------------
    numpy-1.14.2               |   py36hdbf6ddf_0         4.0 MB
    libgfortran-ng-7.2.0       |       hdf63c60_3         1.2 MB
    jpeg-9b                    |       h024ee3a_2         248 KB
    olefile-0.45.1             |           py36_0          47 KB
    pytorch-0.3.1              |py36_cuda8.0.61_cudnn7.0.5_2       205.1 MB  pytorch
    libpng-1.6.34              |       hb9fc6fc_0         334 KB
    pillow-5.0.0               |   py36h3deb7b8_0         561 KB
    mkl-2018.0.1               |       h19d6760_4       184.7 MB
    pytorch-cpu-0.3.1          |       py36_cpu_2        36.6 MB  pytorch
    freetype-2.8               |       hab7d2ae_1         804 KB
    torchvision-0.2.0          |   py36h17b6947_1         102 KB  pytorch
    intel-openmp-2018.0.0      |       hc7b2577_8         618 KB
    cudnn-7.0.5                |        cuda8.0_0       249.3 MB
    libtiff-4.0.9              |       h28f6b97_0         586 KB
    cudatoolkit-8.0            |                3       322.4 MB
    ------------------------------------------------------------
                                           Total:      1006.5 MB
The following NEW packages will be INSTALLED:
    cudatoolkit:    8.0-3                                     
    cudnn:          7.0.5-cuda8.0_0                           
    freetype:       2.8-hab7d2ae_1                            
    intel-openmp:   2018.0.0-hc7b2577_8                       
    jpeg:           9b-h024ee3a_2                             
    libgfortran-ng: 7.2.0-hdf63c60_3                          
    libpng:         1.6.34-hb9fc6fc_0                         
    libtiff:        4.0.9-h28f6b97_0                          
    mkl:            2018.0.1-h19d6760_4                       
    numpy:          1.14.2-py36hdbf6ddf_0                     
    olefile:        0.45.1-py36_0                             
    pillow:         5.0.0-py36h3deb7b8_0                      
    pytorch:        0.3.1-py36_cuda8.0.61_cudnn7.0.5_2 pytorch
    pytorch-cpu:    0.3.1-py36_cpu_2                   pytorch
    torchvision:    0.2.0-py36h17b6947_1               pytorch