Tensorflow-GPU setup with cuDNN and NVIDIA CUDA 9.0 on Ubuntu 18.04 LTS

Pre-requisite: CUDA should be installed on the machine with NVIDIA graphics card

 

CUDA Setup

Driver and CUDA toolkit is described in a previous blogpost.

With a slight change since the Tensorflow setup requires CUDA toolkit 9.0

# Clean CUDA 9.1 and install 9.0
$ sudo /usr/local/cuda/bin/uninstall_cuda_9.1.pl 
$ rm -rf /usr/local/cuda-9.1
$ sudo rm -rf /usr/local/cuda-9.1
$ sudo ./cuda_9.0.176_384.81_linux.run --override

# Make sure environment variables are set for test
$ source ~/.bashrc 
$ sudo ln -s /usr/bin/gcc-6 /usr/local/cuda/bin/gcc
$ sudo ln -s /usr/bin/g++-6 /usr/local/cuda/bin/g++
$ cd ~/NVIDIA_CUDA-9.0_Samples/
$ make -j12
$ ./deviceQuery

Test Successful

cuDNN Setup

Referenced from a medium blogpost.

The following steps are pretty much the same as the installation guide using .deb files (strange that the cuDNN guide is better than the CUDA one).

Screenshot from 2018-07-13 16-03-10.png

  1. Go to the cuDNN download page (need registration) and select the latest cuDNN 7.1.* version made for CUDA 9.0.
  2. Download all 3 .deb files: the runtime library, the developer library, and the code samples library for Ubuntu 16.04.
  3. In your download folder, install them in the same order:
# (the runtime library)
$ sudo dpkg -i libcudnn7_7.1.4.18-1+cuda9.0_amd64.deb
# (the developer library)
$ sudo dpkg -i libcudnn7-dev_7.1.4.18-1+cuda9.0_amd64.deb
# (the code samples)
$ sudo dpkg -i libcudnn7-doc_7.1.4.18-1+cuda9.0_amd64.deb

Now, we can verify the cuDNN installation (below is just the official guide, which surprisingly works out of the box):

  1. Copy the code samples somewhere you have write access: cp -r /usr/src/cudnn_samples_v7/ ~/
  2. Go to the MNIST example code: cd ~/cudnn_samples_v7/mnistCUDNN.
  3. Compile the MNIST example: make clean && make -j4
  4. Run the MNIST example: ./mnistCUDNN. If your installation is successful, you should see Test passed! at the end of the output.
rahul@wind:~/cudnn_samples_v7/mnistCUDNN$ ./mnistCUDNN 
cudnnGetVersion() : 7104 , CUDNN_VERSION from cudnn.h : 7104 (7.1.4)
Host compiler version : GCC 6.4.0
There are 1 CUDA capable devices on your machine :
device 0 : sms 13 Capabilities 5.2, SmClock 1228.0 Mhz, MemSize (Mb) 4034, MemClock 3505.0 Mhz, Ecc=0, boardGroupID=0
Using device 0

...

Result of classification: 1 3 5
Test passed!

Configure the CUDA & cuDNN Environment Variables

# cuDNN libraries are at /usr/local/cuda/extras/CUPTI/lib64
export PATH=/usr/local/cuda-9.0/bin${PATH:+:${PATH}}
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/cuda-9.0/lib64 
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/cuda-9.0/lib 
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/cuda/extras/CUPTI/lib64

source ~/.bashrc

TensorFlow installation

The python environment is setup using a virtualenv located at /opt/pyenv/cv3

$ source /opt/pyenv/cv3/bin/activate
$ pip install numpy scipy matplotlib 
$ pip install scikit-image scikit-learn ipython

Referenced from the official Tensorflow guide 

$ pip install --upgrade tensorflow      # for Python 2.7
$ pip3 install --upgrade tensorflow     # for Python 3.n
$ pip install --upgrade tensorflow-gpu  # for Python 2.7 and GPU
$ pip3 install --upgrade tensorflow-gpu # for Python 3.n and GPU

Now, run a test

Screenshot from 2018-07-13 16-35-08.png

Looks like it is able to discover and use the GTX 970 GPU

 

END.

 

Advertisements

Quick Apt Repository way – NVIDIA CUDA 9.x on Ubuntu 18.04 LST installation

The same NVIDIA CUDA 9.1 setup on Ubuntu 18.04 LST using the aptitude repository. However this appears to work and is simple to work with. Reference is taken from this askubuntu discussion.

Lookup the solution to the Nouveau issue from this blogpost

sudo add-apt-repository ppa:graphics-drivers/ppa
sudo apt update
sudo ubuntu-drivers autoinstall
sudo reboot

Now install the CUDA toolkit

sudo apt install g++-6
sudo apt install gcc-6
sudo apt install nvidia-cuda-toolkit gcc-6

Screenshot from 2018-07-13 14-18-16

Screenshot from 2018-07-13 14-16-00

Run the installer

root@wind:~/Downloads# ./cuda_9.1.85_387.26_linux --override

Screenshot from 2018-07-13 14-27-36.png

Screenshot from 2018-07-13 14-28-43

Setup the environment variables

# Environment variables
export PATH=/usr/local/cuda-9.1/bin${PATH:+:${PATH}}
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/cuda-9.1/lib64 
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/cuda-9.1/lib

Provide the soft link for the gcc-6 compiler

sudo ln -s /usr/bin/gcc-6 /usr/local/cuda/bin/gcc
sudo ln -s /usr/bin/g++-6 /usr/local/cuda/bin/g++
sudo reboot

Test

cd ~/NVIDIA_CUDA-9.1_Samples/
make -j4

Upon completion of the compilation test using device query binary

$ cd ~/NVIDIA_CUDA-9.1_Samples/bin/x86_64/linux/release
$ ./deviceQuery

Screenshot from 2018-07-13 14-41-49.png

$ sudo bash -c "echo /usr/local/cuda/lib64/ > /etc/ld.so.conf.d/cuda.conf"
$ sudo ldconfig

DONE

NVIDIA CUDA 9.x on Ubuntu 18.04 LST installation

Guide

An installation guide to take you through the NVIDIA graphics driver as well as CUDA toolkit setup on an Ubuntu 18.04 LTS.

A. Know your cards

Verify what graphics card you have on your machine

rahul@karma:~$ lspci | grep VGA
04:00.0 VGA compatible controller: 
NVIDIA Corporation GM204 [GeForce GTX 970] (rev a1)
rahul@karma:~$ sudo lshw -C video
 *-display 
 description: VGA compatible controller
 product: GM204 [GeForce GTX 970]
 vendor: NVIDIA Corporation
 physical id: 0
 bus info: pci@0000:04:00.0
 version: a1
 width: 64 bits
 clock: 33MHz
 capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
 configuration: driver=nouveau latency=0
 resources: irq:30 memory:f2000000-f2ffffff memory:e0000000-efffffff memory:f0000000-f1ffffff ioport:2000(size=128) memory:f3080000-f30fffff

Download the right driver

downloaded the Version 390.67 for GeForce GTX 970

Screenshot from 2018-07-12 17-15-34.png

B. Nouveau problem kills your GPU rush

Hoever there are solutions available

Here is what worked for me

  1. remove all nvidia packages ,skip this if your system is fresh installed
    sudo apt-get remove nvidia* && sudo apt autoremove
    
  2. install some packages for build kernel:
    sudo apt-get install dkms build-essential linux-headers-generic
    
  3. now block and disable nouveau kernel driver:
    sudo vim /etc/modprobe.d/nvidia-installer-disable-nouveau.conf
    

Insert follow lines to the nvidia-installer-disable-nouveau.conf:

blacklist nouveau
blacklist lbm-nouveau
options nouveau modeset=0
alias nouveau off
alias lbm-nouveau off

save and exit.

  1. Disable the Kernel nouveau by typing the following commands(nouveau-kms.conf may not exist,it is ok):
    rahul@wind:~$ echo options nouveau modeset=0 | sudo tee -a /etc/modprobe.d/nouveau-kms.conf
    options nouveau modeset=0
    
  2. build the new kernel by:
    rahul@wind:~$ sudo update-initramfs -u
    update-initramfs: Generating /boot/initrd.img-4.15.0-23-generic
    
  3. reboot
Run the Installer in run-level 3
$ sudo init 3 
$ sudo bash
$ ./NVIDIA-Linux-x86_64-390.67.run

Uninstall

More instruction on how to stop using the driver before uninstallation
sudo nvidia-installer –uninstall

C. NVIDIA X Server Settings

Install this from the ubuntu software center.
Screenshot from 2018-07-12 17-23-43.png

D. Start the CUDA related setup

We will need the CUDA toolkit 9.1 which is supported for the GTX 970 version with compute 3.0 capability. So download the local installer for Ubuntu.

Screenshot from 2018-07-13 13-55-24.png

Downloaded the “cuda_9.1.85_387.26_linux.run*” local installation file.

$ sudo add-apt-repository ppa:graphics-drivers/ppa
$ sudo apt install nvidia-cuda-toolkit gcc-6

Steps are taken from the CUDA 9.1 official documentation

  1. Perform the pre-installation actions.
  2.  Disable the Nouveau drivers. We did this in the above driver installation
  3. Reboot into text mode (runlevel 3). This can usually be accomplished by adding the number “3” to the end of the system’s kernel boot parameters. Change the runlevel ‘sudo init 3’, refer
  4. Verify that the Nouveau drivers are not loaded. If the Nouveau drivers are still loaded, consult your distribution’s documentation to see if further steps are needed to disable Nouveau.
  5. Run the installer and follow the on-screen prompts:
$ chmod +x cuda_9.1.85_387.26_linux
$ rahul@wind:~/Downloads$ ./cuda_9.1.85_387.26_linux --override

Screenshot from 2018-07-13 13-52-19.png

Since we already installed the Driver above we say NO in the NVIDIA accelerated graphic driver installation question.

Screenshot from 2018-07-13 13-54-20.png

This will install the CUDA stuff in the following locations

  • CUDA Toolkit /usr/local/cuda-9.1
  • CUDA Samples $(HOME)/NVIDIA_CUDA-9.1_Samples

We can verify the graphic card using the NVIDIA-SMI command.

Screenshot from 2018-07-12 20-02-08

Uninstallation

cd /usr/local/cuda-9.1/bin
sudo ./uninstall_cuda_9.1.pl

 

E. Environment Variables

rahul@wind:~$ vim ~/.bashrc

# Add the following to the environment variables
export PATH=/usr/local/cuda-9.1/bin${PATH:+:${PATH}}
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/cuda-9.1/lib64 
export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/usr/local/cuda-9.1/lib

rahul@wind:~$ source ~/.bashrc
rahul@wind:~$ nvcc --version
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2018 NVIDIA Corporation
Built on Tue_Jun_12_23:07:04_CDT_2018
Cuda compilation tools, release 9.1, 

 

F. Test

Ensure you have the right driver versions

rahul@wind:$ cat /proc/driver/nvidia/version
NVRM version: NVIDIA UNIX x86_64 Kernel Module 390.67 Fri Jun 1 04:04:27 PDT 2018
GCC version: gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)

Change directory to the NVIDIA CUDA Samples and compile them

rahul@wind:~/NVIDIA_CUDA-9.1_Samples$ make

Now run the device query test

rahul@wind:~/NVIDIA_CUDA-9.1_Samples/bin/x86_64/linux/release$ ./deviceQuery
./deviceQuery Starting...

CUDA Device Query (Runtime API) version (CUDART static linking)

 

END

 

Compile and Setup OpenCV 3.4.x on Ubuntu 18.04 LTS with Python Virtualenv for Image processing with Ceres, VTK, PCL

OpenCV: Open Source Computer Vision Library

Links

Documentation: https://docs.opencv.org/3.4.2/

OpenCV Source: https://github.com/opencv/opencv

OpenCV_Logo

A. Setup an external HDD/SSD for this setup

filesystem-partition-ubuntu-external-ssd

B. Environment (Ubuntu 18.04 LTS)

 

Python3 setup

Install the needed packages in a python virtualenv. Refer similar windows Anaconda setup or look at the ubuntu based info here

sudo apt-get install build-essential cmake unzip pkg-config 
sudo apt-get install ubuntu-restricted-extras
sudo apt-get install python3-dev python3-numpy
sudo apt-get install git python3-pip virtualenv
sudo pip3 install virtualenv
rahul@karma:~$ virtualenv -p /usr/bin/python3 cv3
Already using interpreter /usr/bin/python3
Using base prefix '/usr'
New python executable in /home/rahul/cv3/bin/python3
Also creating executable in /home/rahul/cv3/bin/python
Installing setuptools, pkg_resources, pip, wheel...
done.

Activate and Deactivate the python Environment

rahul@karma:~$ source ~/cv3/bin/activate
(cv3) rahul@karma:~$ python
Python 3.6.5 (default, Apr 1 2018, 05:46:30) 
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> print("Test",4*5)
Test 20
>>> exit()
(cv3) rahul@karma:~$ deactivate
rahul@karma:~$ 

Alternatively, a great way to use virtualenv is to use Virtualenvwrappers

sudo pip3 install virtualenv virtualenvwrapper

Add these to your ~/.bashrc file

# virtualenv and virtualenvwrapper
export WORKON_HOME=$HOME/.virtualenvs
export VIRTUALENVWRAPPER_PYTHON=/usr/bin/python3
source /usr/local/bin/virtualenvwrapper.sh

Now, run “source ~/.bashrc” to set the environment

Create a Virtual environment
rahul@karma:~$ mkvirtualenv cv3 -p python3
Already using interpreter /usr/bin/python3
Using base prefix '/usr'
New python executable in /home/rahul/.virtualenvs/cv3/bin/python3
Also creating executable in /home/rahul/.virtualenvs/cv3/bin/python
Installing setuptools, pkg_resources, pip, wheel...done.
virtualenvwrapper.user_scripts creating /home/rahul/.virtualenvs/cv3/bin/predeactivate
virtualenvwrapper.user_scripts creating /home/rahul/.virtualenvs/cv3/bin/postdeactivate
virtualenvwrapper.user_scripts creating /home/rahul/.virtualenvs/cv3/bin/preactivate
virtualenvwrapper.user_scripts creating /home/rahul/.virtualenvs/cv3/bin/postactivate
virtualenvwrapper.user_scripts creating /home/rahul/.virtualenvs/cv3/bin/get_env_details
(cv3) rahul@karma:~$
Activate/Deactivate virtual env
rahul@karma:~$ workon cv3
(cv3) rahul@karma:~$ deactivate 
rahul@karma:~$

Install basic packages for the vision work.

(cv3) rahul@karma: pip install numpy scipy matplotlib scikit-image scikit-learn ipython

Java installation from this blog

sudo add-apt-repository ppa:linuxuprising/java
sudo apt update
sudo apt install oracle-java10-installer
sudo apt install oracle-java10-set-default

VTK for SFM Modules

SFM setup: https://docs.opencv.org/3.4.2/db/db8/tutorial_sfm_installation.html

sudo apt-get install libxt-dev libglew-dev libsuitesparse-dev
sudo apt-get install tk8.5 tcl8.5 tcl8.5-dev tcl-dev

Ceres-Solver: http://ceres-solver.org/installation.html

# However, if you want to build Ceres as a *shared* library, 
# You must, add the following PPA:
sudo add-apt-repository ppa:bzindovic/suitesparse-bugfix-1319687
sudo apt-get update
sudo apt-get install libsuitesparse-dev
git clone https://ceres-solver.googlesource.com/ceres-solver
cd ceres-solver
mkdir build && cd build
cmake ..
make -j4
make test
sudo make install

VTK Setup, https://gitlab.kitware.com/vtk/vtk.git

git clone git://vtk.org/VTK.git VTK
cd VTK
mkdir VTK-build
cd VTK-build
cmake ../ -DBUILD_SHARED_LIBS=ON -DBUILD_TESTING=ON \ 
      -DCMAKE_BUILD_TYPE=Release -DVTK_WRAP_PYTHON=ON
make -j4
sudo make install
$ cp -r ~/cv/VTK/VTK-build/lib/python3.6/site-packages/* ~/.virtualenvs/cv3/lib/python3.6/site-packages/
$ export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/lib:/usr/local/lib"
$ sudo ldconfig

FLANN

http://www.cs.ubc.ca/research/flann/#download
cd flann-1.8.4-src/ && mkdir build && cd build
cmake ..
make -j4 
sudo make install

PCL

Download: http://www.pointclouds.org/downloads/linux.html

sudo apt-get install libusb-1.0-0-dev libusb-dev libudev-dev
sudo apt-get install mpi-default-dev openmpi-bin openmpi-common 
sudo apt-get install libboost-all-dev
sudo apt-get install libqhull* libgtest-dev
sudo apt-get install freeglut3-dev pkg-config
sudo apt-get install libxmu-dev libxi-dev 
sudo apt-get install mono-complete
sudo apt-get install openjdk-8-jdk openjdk-8-jre


git clone https://github.com/PointCloudLibrary/pcl
# https://github.com/PointCloudLibrary/pcl/archive/pcl-1.8.1.tar.gz
cd pcl && mkdir build && cd build

cmake -DBUILD_apps=ON -DBUILD_examples=ON ..
make -j8
sudo make install

Official OpenCV installation

wget -O opencv.zip https://github.com/opencv/opencv/archive/3.4.2.zip
wget -O opencv_contrib.zip https://github.com/opencv/opencv_contrib/archive/3.4.2.zip
unzip opencv.zip
unzip opencv_contrib.zip
Packages needed for OpenCV
GTK support for GUI features, Camera support (libv4l), Media Support (ffmpeg, gstreamer) etc. Additional packages for image formats mostly downloaded form the ubuntu-restricted-extra repository
sudo apt-get install libjpeg-dev libpng-dev libtiff-dev
sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
sudo apt-get install libxvidcore-dev libx264-dev libvorbis-dev
sudo apt-get install libgtk-3-dev
sudo apt-get install qt5-default libgtk2.0-dev libtbb-dev
sudo apt-get install libatlas-base-dev gfortran libblas-dev liblapack-dev 
sudo apt-get install libdvd-pkg libgstreamer-plugins-base1.0-dev
sudo apt-get install libfaac-dev libmp3lame-dev libtheora-dev
sudo apt-get install libxine2-dev libv4l-dev x264 v4l-utils
sudo apt-get install libopencore-amrnb-dev libopencore-amrwb-dev

# Optional dependencies
sudo apt-get install libprotobuf-dev protobuf-compiler
sudo apt-get install libgoogle-glog-dev libgflags-dev
sudo apt-get install libgphoto2-dev libeigen3-dev libhdf5-dev doxygen
Configure OpenCV with CMake
$ cd ~/cv/opencv-3.4.2/
$ mkdir build
$ cd build
$ cmake -D CMAKE_BUILD_TYPE=RELEASE \
-D CMAKE_INSTALL_PREFIX=/usr/local \
-D INSTALL_PYTHON_EXAMPLES=ON \
-D INSTALL_C_EXAMPLES=OFF \
-D OPENCV_EXTRA_MODULES_PATH=~/cv/opencv_contrib-3.4.2/modules \
-D WITH_TBB=ON \
-D WITH_V4L=ON \
-D WITH_QT=ON \
-D WITH_OPENGL=ON \
-D WITH_VTK=ON \
-D PYTHON_EXECUTABLE=~/.virtualenvs/cv3/bin/python \
-D BUILD_EXAMPLES=ON ..
Screenshot from 2018-07-12 13-18-55

Make sure the Python 3 interpreter and other dependencies are configured correctly.

Compile, Install and Verify
(cv3) rahul@karma:~/cv/opencv-3.4.2/build$ make -j4
$ sudo make install
$ sudo sh -c 'echo "/usr/local/lib" >> /etc/ld.so.conf.d/opencv.conf'
$ sudo ldconfig
$ pkg-config --modversion opencv
Setup the cv shared libraries
(cv3) rahul@karma$ ls -l /usr/local/lib/python3.6/site-packages
total 5172
-rw-r--r-- 1 root staff 5292240 Jul 12 13:32 cv2.cpython-36m-x86_64-linux-gnu.so
# or use the find command 
$ find /usr/local/lib/ -type f -name "cv2*.so"
$ cd /usr/local/lib/python3.6/site-packages/
$ mv cv2.cpython-36m-x86_64-linux-gnu.so cv2.so
$ cd ~/.virtualenvs/cv3/lib/python3.6/site-packages/
$ ln -s /usr/local/lib/python3.6/site-packages/cv2.so cv2.so

C. Test

(cv3) rahul@karma:~$ python
Python 3.6.5 (default, Apr 1 2018, 05:46:30) 
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information
>>> import cv2
>>> cv2.__version__
'3.4.2'
>>> exit()
(cv3) rahul@karma:~$

Done.

Anaconda for your Image Processing, Machine Learning, Neural Networks, Computer Vision development environment using VS Code

Python is a great language and I will not go into explaining why it is so. Here is a brief setup for your development environment in case you are tinkering with computer vision problems and looking at learning neural network on your windows laptop.

Anaconda3 5.0

64 bit Download: https://www.anaconda.com/download

Install Anaconda with the default options.

  • Anaconda Navigator is a great place to look at your environment and activate them as per your need.
  • In case you want to have a Python 2x and 3x environment side by side, then you can create them in navigator. Here I have a base(root) setup with Python 3.6 and an additional Python 2.7 environment.
  • In order to use a particular environment you can click on that environment in the navigator or go to the Anaconda prompt and execute the following command
"(base)C:\Users\Karma>activate Py27"
  • To deactivate use
deactivate
  • To create a new environment use the following command:
(base)C:\Users\Karma>conda create -n Py27 python=2.7 anaconda

Anaconda-Navigator

Whenever you want to use a particular environment just go to the environments section and activate it. This will setup your python with the packages and version as configured in that environment.  In the screenshot above I have tensorflow in my base environment while its always better to have a separate environment for this.

In case you are using Cmder like me then go for this:

Considering where you have installed your Anaconda
> C:\Anaconda3\Scripts\activate.bat C:\Anaconda3
or
> C:\Users\Karma\Anaconda3\Scripts\activate.bat C:\Users\Karma\Anaconda3
> conda info --envs
> conda activate py27
> conda deactivate

Lets try to use package manager “conda” for the setup.

Run the following installation command on Anaconda Command Prompt which will open up showing prompt as (C:\Anaconda3) C:\Users\Karma>:

In order to find packages, you should look at the Anaconda repository ( https://anaconda.org/anaconda/repo )

# Adding the menpo channels and install opencv
conda install -c https://conda.binstar.org/menpo opencv
conda config --add channels menpo
conda install -c menpo opencv

# or directly use conda-forge
conda install -c conda-forge opencv

# Install packages
conda install numpy
conda install scipy
conda install matplotlib

# List packages
conda list

OpenCV

If the OpenCV installation did not go through then we can use the pre-built windows binaries maintained by,

Christoph Gohlke at https://www.lfd.uci.edu/~gohlke/pythonlibs/#opencv

Download File: You can remove these modules by using “pip uninstall <package>”

(base)λ pip install opencv_python-3.4.0-cp36-cp36m-win_amd64.whl
Processing c:\users\karma\downloads\opencv_python-3.4.0-cp36-cp36m-win_amd64.whl
Installing collected packages: opencv-python
Successfully installed opencv-python-3.4.0
(base)λ pip install opencv_python-3.4.0+contrib-cp36-cp36m-win_amd64.whl
Processing c:\users\karma\downloads\opencv_python-3.4.0+contrib-cp36-cp36m-win_amd64.whl
Installing collected packages: opencv-python
Successfully installed opencv-python-3.4.0+contrib

In my case I used SIFT and SURF implementations which were made available in the contrib packages.

Now, that we have packages set, lets test it out on the python interpreter interface,
Use the following commands on the python CLI.

import numpy as np
import cv2

TensorFlow

Instructions: https://www.tensorflow.org/install/install_windows

To install this package with conda run:
conda install -c conda-forge tensorflow

Version changes based on the repository you are trying to download from.

I typically use VS Code but if you like smooth scrolling go for Sublime.

In VS Code I use ms-python.python, tht13.python extensions to simplify my workspace.

VSCode-Python

Debugging is critical to work with any kind of code. So here is some configuration to get you started here.

  • Verify that the workspace settings.json file has the right python path
"python.pythonPath ": "C:\\Anaconda3\\python.exe"
  • Add a launch.json in your project .vscode folder with the following values
{
   "name": "Python",
   "type": "python",
   "pythonPath":"${config:python.pythonPath}", "request": "launch", "stopOnEntry": true, "console": "none", "program": "${file}", "cwd": "${workspaceFolder}", "debugOptions": [ "WaitOnAbnormalExit", "WaitOnNormalExit", "RedirectOutput" ] }
This will get you setup for debugging and here is how the debug interface would look like when you have put the breakpoints and stepped through the code.
VSCode-Python-Debug

Good Luck.

Eclipse can get naggy and here are some fixes

 

1. Make changes to the plugins that gets loaded at the startup/shutdown

Preferences -> General -> Startup and Shutdown -> Deselect all plugins

2. Modify the eclipse.ini file to have a larger memory allocation

Use the following content in your eclipse.ini

 

-startup
plugins/org.eclipse.equinox.launcher_1.3.0.v20130327-1440.jar
--launcher.library
plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20130807-1835
-product
org.eclipse.epp.package.jee.product
--launcher.defaultAction
openFile
--launcher.XXMaxPermSize
256M
-showsplash
org.eclipse.platform
--launcher.XXMaxPermSize
256m
--launcher.defaultAction
openFile
--launcher.appendVmargs
-vm
C:/Program Files/Java/jdk1.8.0_91/bin/javaw.exe
-vmargs
-Dosgi.requiredJavaVersion=1.6
-Xverify:none
-Xmn128m
-Xms1024m
-Xmx1024m
-Xss2m
-XX:PermSize=512m
-XX:MaxPermSize=512m
-XX:+UseParallelGC

 

 

 

Repository Management with Nexus 3 for your Mavenized project, including release and snapshot distribution

Like the Nexus documentation says;

Stop developing in the Dark Ages, read this book, and start using a repository manager. Trust us, once you start using a Nexus Repository Manager, you’ll wonder how you ever functioned without it.

Reference:

A. Download the archive from https://www.sonatype.com/download-oss-sonatype

B. Unzip it into a folder and run it as follows

cd ~\nexus\nexus-3.3.1-01\bin
nexus.exe /run 

If the log shows the following that means the server is up  
-------------------------------------------------
 Started Sonatype Nexus OSS 3.3.1-01
-------------------------------------------------

C. Server starts by default on http://localhost:8081

username: admin  
password: admin123 
Use the above credentials to login as the default administrator

D. Add the following configuration to the ~\USER_HOME\.m2\settings.xml

Make sure you remove the code tags before using this configuration, which is used here for wordpress content formatting only.

<settings>
	  <mirrors>
		<mirror>
		  <!--This sends everything else to /public -->
		  <id>nexus</id>
		  <mirrorOf>*</mirrorOf>
		  <url>http://localhost:8081/repository/maven-public/</url>
		</mirror>
	  </mirrors>
	  <profiles>
		<profile>
		  <id>nexus</id>
		  <!--Enable snapshots for the built in central repo to direct -->
		  <!--all requests to nexus via the mirror -->
		  <repositories>
			<repository>
			  <id>central</id>
			  <url>http://central</url>
			  <releases><enabled>true</enabled></releases>
			  <snapshots><enabled>true</enabled></snapshots>
			</repository>
		  </repositories>
		 <pluginRepositories>
			<pluginRepository>
			  <id>central</id>
			  <url>http://central</url>
			  <releases><enabled>true</enabled></releases>
			  <snapshots><enabled>true</enabled></snapshots>
			</pluginRepository>
		  </pluginRepositories>
		</profile>
	  </profiles>
	  <activeProfiles>
		<!--make the profile active all the time -->
		<activeProfile>nexus</activeProfile>
	  </activeProfiles>
	   <servers>
		<server>
		  <id>nexus</id>
		  <username>admin</username>
		  <password>admin123</password>
		</server>
	  </servers>
	</settings>

E. Release and snapshot artifacts should be configured in the projects pom as distributionManagement

  <distributionManagement>
    <repository>
      <id>nexus</id>
      <name>Releases</name>
      <url>http://localhost:8081/repository/maven-releases</url>
    </repository>
    <snapshotRepository>
      <id>nexus</id>
      <name>Snapshot</name>
      <url>http://localhost:8081/repository/maven-snapshots</url>
    </snapshotRepository>
  </distributionManagement>

F. The clean and deploy goal in your Java project will build and upload the artifacts to the repository using the server credentials tag from settings.xml

mvn clean deploy -DskipTests

NexusRepository

G. Add a proxy repository

You can add a new proxy repository to your Nexus instance using the following steps

  1. Create a repository from the repositories admin page
  2. Select the maven2 recipe since JBOSS is a maven like repository
  3. Provide a name like “jboss-nexus-repository”
  4. Add this repository to the group you have defaulted your maven to, so that maven can use this as a part of the group it is defaulted to.

NexusProxyRepository

H. Adding your custom jars into the repository

  1. Create a repository with maven2 hosted recipe
  2. Obtain the created repository URL and run the following maven deploy command on your jar file
 mvn deploy:deploy-file 
-Durl=http://localhost:8081/repository/project-customs/ 
-DrepositoryId=nexus -DgroupId=com.oracle 
-DartifactId=ojdbc6 -Dversion=11.2.0.4 
-Dpackaging=jar -Dfile=C:/Users/vishwaka/.m2/ojdbc6.jar 
-DgeneratePom=true
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-deploy-plugin:2.7:deploy-file (default-cli) @ standalone-pom ---
Uploading: http://localhost:8081/repository/project-customs/com/oracle/ojdbc6/11.2.0.4/ojdbc6-11.2.0.4.jar
Uploaded: http://localhost:8081/repository/project-customs/com/oracle/ojdbc6/11.2.0.4/ojdbc6-11.2.0.4.jar (1942 KB at 583.2 KB/sec)
Uploading: http://localhost:8081/repository/project-customs/com/oracle/ojdbc6/11.2.0.4/ojdbc6-11.2.0.4.pom
Uploaded: http://localhost:8081/repository/project-customs/com/oracle/ojdbc6/11.2.0.4/ojdbc6-11.2.0.4.pom (392 B at 0.1 KB/sec)
Downloading: http://localhost:8081/repository/project-customs/com/oracle/ojdbc6/maven-metadata.xml
Downloaded: http://localhost:8081/repository/project-customs/com/oracle/ojdbc6/maven-metadata.xml (302 B at 0.2 KB/sec)
Uploading: http://localhost:8081/repository/project-customs/com/oracle/ojdbc6/maven-metadata.xml
Uploaded: http://localhost:8081/repository/project-customs/com/oracle/ojdbc6/maven-metadata.xml (302 B at 0.1 KB/sec)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 15.768 s
[INFO] Finished at: 2017-06-15T11:29:59-07:00
[INFO] Final Memory: 11M/245M
[INFO] ------------------------------------------------------------------------

NexusHostedRepository

You should be able to see this in your repositories assets once the upload is successful. The upload deploy uses credentials from your server.xml configuration so make sure that is available.

3. Upon doing this we need to add the project-custom repository as a member to the maven-public group of repositories

NexusMemberRepository

I. Test by running a clean build of your maven project

  • Delete the folder containing the jar files in the path \.m2\repository\com\oracle\ojdbc6\11.2.0.4
  • Rerun the maven build using mvn clean compile
  • Verify the following logs in the build
Downloading: http://localhost:8081/repository/maven-public/com/oracle/ojdbc6/11.2.0.4/ojdbc6-11.2.0.4.pom
Downloaded: http://localhost:8081/repository/maven-public/com/oracle/ojdbc6/11.2.0.4/ojdbc6-11.2.0.4.pom (392 B at 2.8 KB/sec)
Downloading: http://localhost:8081/repository/maven-public/com/oracle/ojdbc6/11.2.0.4/ojdbc6-11.2.0.4.jar
Downloaded: http://localhost:8081/repository/maven-public/com/oracle/ojdbc6/11.2.0.4/ojdbc6-11.2.0.4.jar (1942 KB at 10846.1 KB/sec)