pomelyu / fastainn_setup

setup for fast.ai.nn course

Setup the VM for learning fast.ai (http://course.fast.ai/)

The install-gpu.sh in modified from https://github.com/fastai/courses.git

Step to install

1. install vagrant (https://www.vagrantup.com) & virtualbox (https://www.virtualbox.org)
2. download this repository: git clone https://github.com/pomelyu/fastainn_setup.git or download the zip
3. config the VM (in Vagrantfile):

Forward the port used by jupyter notebook to localhost

config.vm.network "forwarded_port", guest: 8888, host: 8888

Config the synced forder from host computer to VM

config.vm.synced_folder "./data", "/data"
config.vm.synced_folder "./course", "/home/vagrant/course"

Setup the VM memory

vb.memory = "8196"

2G RAM is not enough for even the minimum batch_size 4
8G RAM is OK for batch_size 16

See http://gogojimmy.net/2013/05/26/vagrant-tutorial/ for more detail about the Vagrantfile

4. in repository root folder run vagrant up to boot the VM
5. use vagrant ssh to login the VM
6. cd ../../data and ./install-gpu_modified.sh to install and config Anaconda, theano, keras, cudnn and jupyter notebook
7. vim ~/.jupyter/jupyter_notebook_config.py to change the password of jupyter server (I have failed to config the password in the step, so I run the step 9. instead)
8. logout and then login the VM again to source the jupyter environment variable.
9. cd ~/course/nbs/ and jupyter notebook password to change the password of jupyter server
10. In directory ~/course/nbs/, run jupyter notebook to start the server
11. In host computer browser, enter localhost:8888 and type the password to access the notebook

Run lesson1

1. Run ./get-lesson1.sh
2. vim ~/.theanorc modify [global] device=gpu to [global] device=cpu
3. vim ~/.keras/keras.json to setup the backend as theano

vagrant hotkey

vagrant 是一個可以方便設定虛擬機的工具，背後要用到 virtual box。但使用起來比 vb 還要輕量很多，
ref: http://gogojimmy.net/2013/05/26/vagrant-tutorial/

• vagrant up VM 開機
• vagrant ssh ssh 登入 VM，預設 port 22
• vagrant halt VM 關機，建議沒事不用關機
• vagrant suspend VM 暫停，這個即使整台電腦重開也可以回復狀態
• vagrant resume 回復 VM 狀態
• vagrant box add 加入 box
• vagrant box list 列出所有 box
• vagrant init 產生 default 的 Vagrantfile

tmux hotkey

讓 terminal 可以以一次跑多個程式，並可以儲存或還原目前的狀態，
ref: http://blog.chh.tw/posts/tmux-terminal-multiplexer/

• tmux 開啟 tmux
• tmux attach 回復之前 detach 的狀態
• ctrl+b+" 產生上下分割視窗
• ctrl+b+% 產生左右分割視窗
• ctrl+b+o 切換游標的位置
• ctrl+b+d detach 目前狀態，回到原先的介面，程式還在背景執行

jupyter notebook hotkey