title: (Conda)Tensorflow-gpu installing
body: <p>My goal is to use gpu(GE FORCE GTX 850M). I have tried according to this guide(<a href="https://docs.anaconda.com/anaconda/user-guide/tasks/tensorflow/" rel="nofollow noreferrer">https://docs.anaconda.com/anaconda/user-guide/tasks/tensorflow/</a>). Tensoflow 2.8 is installed and keras also. But when I execute the test code, the output is as below. It must be that the code does not or cannot use gpu. What went wrong?</p>
  <pre><code>(my_tf) PS C:\WINDOWS\system32&gt; python -c &quot;import tensorflow as tf;print(tf.reduce_sum(tf.random.normal([1000, 1000])))&quot;
  
  2022-03-01 23:30:30.626829: I tensorflow/core/platform/cpu_feature_guard.cc:142] This TensorFlow binary is optimized with oneAPI Deep Neural Network Library (oneDNN)to use the following CPU instructions in performance-critical operations:  AVX AVX2
  To enable them in other operations, rebuild TensorFlow with the appropriate compiler flags.
  </code></pre>
  <p>※ Below is all the installed packages(Name/Version/Build/Channel) at my C:\Anaconda3</p>
  <pre><code>_ipyw_jlab_nb_ext_conf    0.1.0                    py38_0
  _py-xgboost-mutex         2.0                       cpu_0
  absl-py                   0.15.0             pyhd3eb1b0_0
  anaconda-client           1.9.0            py38haa95532_0
  anaconda-navigator        2.1.2            py38haa95532_0
  anyio                     3.5.0            py38haa95532_0
  argon2-cffi               21.3.0             pyhd3eb1b0_0
  argon2-cffi-bindings      21.2.0           py38h2bbff1b_0
  astunparse                1.6.3                    pypi_0    pypi
  attrs                     21.4.0             pyhd3eb1b0_0
  babel                     2.9.1              pyhd3eb1b0_0
  backcall                  0.2.0              pyhd3eb1b0_0
  backports                 1.1                pyhd3eb1b0_0
  backports.functools_lru_cache 1.6.4              pyhd3eb1b0_0
  backports.tempfile        1.0                pyhd3eb1b0_1
  backports.weakref         1.0.post1                  py_1
  beautifulsoup4            4.10.0             pyh06a4308_0
  blas                      1.0                         mkl
  bleach                    4.1.0              pyhd3eb1b0_0
  bottleneck                1.3.2            py38h2a96729_1
  brotli                    1.0.9                ha925a31_2
  brotlipy                  0.7.0           py38h2bbff1b_1003
  bs4                       0.0.1                    pypi_0    pypi
  bzip2                     1.0.8                he774522_0
  ca-certificates           2021.10.26           haa95532_4
  cachetools                5.0.0                    pypi_0    pypi
  certifi                   2021.10.8        py38haa95532_2
  cffi                      1.15.0           py38h2bbff1b_1
  chardet                   4.0.0           py38haa95532_1003
  charset-normalizer        2.0.4              pyhd3eb1b0_0
  chime                     0.6.0                    pypi_0    pypi
  click                     8.0.3              pyhd3eb1b0_0
  clyent                    1.2.2                    py38_1
  colorama                  0.4.4              pyhd3eb1b0_0
  conda                     4.11.0           py38haa95532_0
  conda-build               3.21.7           py38haa95532_1
  conda-content-trust       0.1.1              pyhd3eb1b0_0
  conda-env                 2.6.0                haa95532_1
  conda-package-handling    1.7.3            py38h8cc25b3_1
  conda-repo-cli            1.0.4              pyhd3eb1b0_0
  conda-token               0.3.0              pyhd3eb1b0_0
  conda-verify              3.4.2                      py_1
  console_shortcut          0.1.1                         4
  cryptography              3.4.8            py38h71e12ea_0
  cupy                      7.0.0                    pypi_0    pypi
  cycler                    0.11.0             pyhd3eb1b0_0
  datetime                  4.3                      pypi_0    pypi
  debugpy                   1.5.1            py38hd77b12b_0
  decorator                 5.1.1              pyhd3eb1b0_0
  defusedxml                0.7.1              pyhd3eb1b0_0
  descartes                 1.1.0              pyhd3eb1b0_4
  entrypoints               0.3                      py38_0
  fastrlock                 0.8                      pypi_0    pypi
  filelock                  3.4.2              pyhd3eb1b0_0
  flatbuffers               2.0                      pypi_0    pypi
  fonttools                 4.25.0             pyhd3eb1b0_0
  freetype                  2.10.4               hd328e21_0
  future                    0.18.2                   py38_1
  gast                      0.5.3              pyhd3eb1b0_0
  glob2                     0.7                pyhd3eb1b0_0
  google-auth               2.6.0                    pypi_0    pypi
  google-auth-oauthlib      0.4.6                    pypi_0    pypi
  google-pasta              0.2.0                    pypi_0    pypi
  graphviz                  2.38                 hfd603c8_2
  grpcio                    1.44.0                   pypi_0    pypi
  icc_rt                    2019.0.0             h0cc432a_1
  icu                       58.2                 ha925a31_3
  idna                      3.3                pyhd3eb1b0_0
  imap-tools                0.34.0                   pypi_0    pypi
  importlib-metadata        4.11.1                   pypi_0    pypi
  importlib_metadata        4.8.2                hd3eb1b0_0
  intel-openmp              2021.4.0          haa95532_3556
  ipykernel                 6.4.1            py38haa95532_1
  ipython                   7.31.1           py38haa95532_0
  ipython_genutils          0.2.0              pyhd3eb1b0_1
  ipywidgets                7.6.5              pyhd3eb1b0_1
  jedi                      0.18.1           py38haa95532_1
  jinja2                    2.11.3             pyhd3eb1b0_0
  joblib                    1.1.0              pyhd3eb1b0_0
  jpeg                      9d                   h2bbff1b_0
  json5                     0.9.6              pyhd3eb1b0_0
  jsonschema                3.2.0              pyhd3eb1b0_2
  jupyter_client            7.1.2              pyhd3eb1b0_0
  jupyter_core              4.9.1            py38haa95532_0
  jupyter_server            1.13.5             pyhd3eb1b0_0
  jupyterlab                3.2.9              pyhd3eb1b0_0
  jupyterlab_pygments       0.1.2                      py_0
  jupyterlab_server         2.10.3             pyhd3eb1b0_1
  jupyterlab_widgets        1.0.0              pyhd3eb1b0_1
  keras                     2.8.0                    pypi_0    pypi
  keras-preprocessing       1.1.2                    pypi_0    pypi
  kiwisolver                1.3.2            py38hd77b12b_0
  libarchive                3.4.2                h5e25573_0
  libclang                  13.0.0                   pypi_0    pypi
  libiconv                  1.15                 h1df5818_7
  liblief                   0.10.1               ha925a31_0
  libpng                    1.6.37               h2a8f88b_0
  libtiff                   4.2.0                hd0e1b90_0
  libwebp                   1.2.2                h2bbff1b_0
  libxgboost                1.5.0                hd77b12b_1
  libxml2                   2.9.12               h0ad7f3c_0
  lz4-c                     1.9.3                h2bbff1b_1
  markdown                  3.3.6                    pypi_0    pypi
  markupsafe                2.0.1            py38h2bbff1b_0
  matplotlib                3.5.1            py38haa95532_0
  matplotlib-base           3.5.1            py38hd77b12b_0
  matplotlib-inline         0.1.2              pyhd3eb1b0_2
  menuinst                  1.4.18           py38h59b6b97_0
  mistune                   0.8.4           py38he774522_1000
  mizani                    0.7.3              pyhd8ed1ab_0    conda-forge
  mkl                       2021.4.0           haa95532_640
  mkl-service               2.4.0            py38h2bbff1b_0
  mkl_fft                   1.3.1            py38h277e83a_0
  mkl_random                1.2.2            py38hf11a4ad_0
  mouseinfo                 0.1.3                    pypi_0    pypi
  multitasking              0.0.10                   pypi_0    pypi
  munkres                   1.1.4                      py_0
  navigator-updater         0.2.1                    py38_1
  nbclassic                 0.3.5              pyhd3eb1b0_0
  nbclient                  0.5.11             pyhd3eb1b0_0
  nbconvert                 6.1.0            py38haa95532_0
  nbformat                  5.1.3              pyhd3eb1b0_0
  nest-asyncio              1.5.1              pyhd3eb1b0_0
  notebook                  6.4.8            py38haa95532_0
  numexpr                   2.8.1            py38hb80d3ca_0
  numpy                     1.22.2                   pypi_0    pypi
  numpy-base                1.21.5           py38hc2deb75_0
  oauthlib                  3.2.0                    pypi_0    pypi
  olefile                   0.46               pyhd3eb1b0_0
  openssl                   1.1.1m               h2bbff1b_0
  opt-einsum                3.3.0                    pypi_0    pypi
  packaging                 21.3               pyhd3eb1b0_0
  palettable                3.3.0              pyhd3eb1b0_0
  pandas                    1.4.1            py38hd77b12b_0
  pandas-datareader         0.10.0                   pypi_0    pypi
  pandocfilters             1.5.0              pyhd3eb1b0_0
  parso                     0.8.3              pyhd3eb1b0_0
  patsy                     0.5.2            py38haa95532_1
  pickleshare               0.7.5           pyhd3eb1b0_1003
  pillow                    8.4.0            py38hd45dc43_0
  pip                       22.0.3                   pypi_0    pypi
  pkginfo                   1.8.2              pyhd3eb1b0_0
  plotnine                  0.8.0              pyhd8ed1ab_0    conda-forge
  powershell_shortcut       0.0.1                         3
  prometheus_client         0.13.1             pyhd3eb1b0_0
  prompt-toolkit            3.0.20             pyhd3eb1b0_0
  protobuf                  3.19.4                   pypi_0    pypi
  psutil                    5.8.0            py38h2bbff1b_1
  py-lief                   0.10.1           py38ha925a31_0
  py-xgboost                1.5.0            py38haa95532_1
  pyasn1                    0.4.8                    pypi_0    pypi
  pyasn1-modules            0.2.8                    pypi_0    pypi
  pyautogui                 0.9.52                   pypi_0    pypi
  pybithumb                 1.0.21                   pypi_0    pypi
  pycosat                   0.6.3            py38h2bbff1b_0
  pycparser                 2.21               pyhd3eb1b0_0
  pygetwindow               0.0.9                    pypi_0    pypi
  pygments                  2.11.2             pyhd3eb1b0_0
  pyjwt                     2.1.0            py38haa95532_0
  pykorbit                  0.1.10                   pypi_0    pypi
  pymsgbox                  1.0.9                    pypi_0    pypi
  pyopenssl                 19.1.0                   py38_0
  pyparsing                 3.0.4              pyhd3eb1b0_0
  pyperclip                 1.8.1                    pypi_0    pypi
  pyqt                      5.9.2            py38hd77b12b_6
  pyqt5                     5.15.4                   pypi_0    pypi
  pyqt5-qt5                 5.15.2                   pypi_0    pypi
  pyqt5-sip                 12.9.0                   pypi_0    pypi
  pyqtchart                 5.15.4                   pypi_0    pypi
  pyqtchart-qt5             5.15.2                   pypi_0    pypi
  pyrect                    0.1.4                    pypi_0    pypi
  pyrsistent                0.18.0           py38h196d8e1_0
  pyscreeze                 0.1.26                   pypi_0    pypi
  pysocks                   1.7.1            py38haa95532_0
  python                    3.8.12               h6244533_0
  python-dateutil           2.8.2              pyhd3eb1b0_0
  python-graphviz           0.16               pyhd3eb1b0_1
  python-libarchive-c       2.9                pyhd3eb1b0_1
  pytweening                1.0.3                    pypi_0    pypi
  pytz                      2021.3             pyhd3eb1b0_0
  pyupbit                   0.2.21                   pypi_0    pypi
  pywin32                   302              py38h827c3e9_1
  pywinauto                 0.6.8                    pypi_0    pypi
  pywinpty                  2.0.2            py38h5da7b33_0
  pyyaml                    6.0              py38h2bbff1b_1
  pyzmq                     22.3.0           py38hd77b12b_2
  qt                        5.9.7            vc14h73c81de_0
  qtpy                      1.11.2             pyhd3eb1b0_0
  requests                  2.27.1             pyhd3eb1b0_0
  requests-oauthlib         1.3.1                    pypi_0    pypi
  rsa                       4.8                      pypi_0    pypi
  ruamel_yaml               0.15.100         py38h2bbff1b_0
  scikit-learn              1.0.2            py38hf11a4ad_1
  scipy                     1.7.3            py38h0a974cb_0
  selenium                  3.141.0                  pypi_0    pypi
  send2trash                1.8.0              pyhd3eb1b0_1
  setuptools                58.0.4           py38haa95532_0
  sip                       4.19.13          py38hd77b12b_0
  six                       1.16.0             pyhd3eb1b0_1
  sniffio                   1.2.0            py38haa95532_1
  soupsieve                 2.3.1              pyhd3eb1b0_0
  sqlite                    3.37.2               h2bbff1b_0
  statsmodels               0.13.0           py38h2bbff1b_0
  tensorboard               2.8.0                    pypi_0    pypi
  tensorboard-data-server   0.6.1                    pypi_0    pypi
  tensorboard-plugin-wit    1.8.1                    pypi_0    pypi
  tensorflow                2.8.0                    pypi_0    pypi
  tensorflow-io-gcs-filesystem 0.24.0                   pypi_0    pypi
  termcolor                 1.1.0                    pypi_0    pypi
  terminado                 0.13.1           py38haa95532_0
  testpath                  0.5.0              pyhd3eb1b0_0
  tf-estimator-nightly      2.8.0.dev2021122109          pypi_0    pypi
  threadpoolctl             2.2.0              pyh0d69192_0
  tk                        8.6.11               h2bbff1b_0
  tornado                   6.1              py38h2bbff1b_0
  tqdm                      4.62.3             pyhd3eb1b0_1
  traitlets                 5.1.1              pyhd3eb1b0_0
  typing-extensions         3.10.0.2             hd3eb1b0_0
  typing_extensions         3.10.0.2           pyh06a4308_0
  ujson                     4.0.2            py38hd77b12b_0
  urllib3                   1.26.8             pyhd3eb1b0_0
  utils                     1.0.1                    pypi_0    pypi
  vc                        14.2                 h21ff451_1
  vs2015_runtime            14.27.29016          h5e58377_2
  wcwidth                   0.2.5              pyhd3eb1b0_0
  webencodings              0.5.1                    py38_1
  websocket-client          0.58.0           py38haa95532_4
  websockets                9.1                      pypi_0    pypi
  wheel                     0.37.1             pyhd3eb1b0_0
  widgetsnbextension        3.5.2            py38haa95532_0
  win_inet_pton             1.1.0            py38haa95532_0
  wincertstore              0.2              py38haa95532_2
  winpty                    0.4.3                         4
  xgboost                   1.5.0            py38haa95532_1
  xz                        5.2.5                h62dcd97_0
  yaml                      0.2.5                he774522_0
  yfinance                  0.1.66                   pypi_0    pypi
  zipp                      3.7.0              pyhd3eb1b0_0
  zlib                      1.2.11               h8cc25b3_4
  zstd                      1.4.9                h19a0ad4_0
  </code></pre>