yCAR_ppm = 118.078
</source>
= Google Cloud Computing =
This follows the same idea as from [[Run_relax_at_cloud.sagemath.com|Run relax at cloud.sagemath.com]]
== pricing ==
For this example of '''Google Cloud Computing''', we wan't to have access to as many computer cores as possible
* The pricing explained here: https://cloud.google.com/pricing/
* A pricing calculator is here: https://cloud.google.com/products/calculator/
'''For the price calculation of:'''
* '''1''' server
* using '''Free: Debian, CentOS, ...'''
* with a '''regular''' VM Class
* Instance type of (HIGH CPU) '''n1-highcpu-32 (vCPUs: 32, RAM: 28.80 GB)'''
* 0 '''SSD'''
* Datacenter location '''Europe'''
* Average days per month each server is running: '''1''' days, per month.
The '''monthly''' price was of November 2015, '''$32.26'''.
At November 2015, google give free trial of '''300$'''. https://cloud.google.com/free-trial/
Note, there are some limitations: https://cloud.google.com/free-trial/#/faq
== Start free trial ==
Please first see this video:
* https://cloud.google.com/compute/docs/linux-quickstart or https://www.youtube.com/watch?v=BnEhYaUY4sA
Go to: https://cloud.google.com/free-trial/ and click '''Start your free trial'''.
You need to sign up with a credit card. To prevent mis-abuse from robots and hackers.
'''Then go to: https://console.developers.google.com'''
* You should already have a project called '''My First Project'''.
* '''Create a new project''' in top right corner of the browser under the dropdown of '''My First Project'''.
* Call the new project '''relax''' with '''App Engine location''' at '''europe-west'''
== Create a Virtual Machine instance ==
* Click then at '''Try Compute Engine''' or go to https://console.developers.google.com/compute
* Click '''Create instance'''
* '''Name:''' relax
* '''Zone:''' Don't change this. As of Nov 2015, it seems that if you change this, you cannot select more than 2 vCPU's
* '''Machine type:''' From the very bottom, create '''8 vCPUs'''. 32 cores need an upgrade to you account, [https://cloud.google.com/free-trial/#/faq and the free trial only allows for 8 vCPU's.]
* '''Boot disk:''' 10 GB of Ubuntu 14.04 LTS
* '''Zone:''' Now change this to: europe-west1-c
* Let the rest be default and click '''Create'''.
== Access Virtual Machine instance ==
* Go to https://console.developers.google.com/compute
* In the line of '''relax''', click '''SSH'''
* This should open a '''browser terminal window'''
== Get relax and unpack ==
{{#tag:source|
v={{current version relax}}
# Get relax
curl http://download.gna.org/relax/relax-$v.GNU-Linux.x86_64.tar.bz2 -o relax-$v.GNU-Linux.x86_64.tar.bz2
# Make home bin
mkdir -p $HOME/bin
tar xvjf relax-{{current version relax}}.GNU-Linux.x86_64.tar.bz2
rm relax-{{current version relax}}.GNU-Linux.x86_64.tar.bz2
ln -s $HOME/relax-{{current version relax}}/relax $HOME/bin
# Add $HOME/bin to PATH
echo '' >> $HOME/.bashrc
echo 'export PATH=$PATH:$HOME/bin' >> $HOME/.bashrc
source $HOME/.bashrc
|lang="bash"
}}
Solve depencies. See also [[Installation_linux|Installation linux]]
{{#tag:source|
sudo apt-get -y install python-numpy
|lang="bash"
}}
Then test relax
{{#tag:source|
relax -i
|lang="bash"
}}
Then install other packages
Solve depencies. See also [[Installation_linux|Installation linux]]
{{#tag:source|
sudo apt-get -y install python-scipy python-matplotlib python-pip
sudo apt-get -y install openmpi-bin openmpi-doc libopenmpi-dev
sudo pip install mpi4py
sudo pip install epydoc
# Check installation
relax -i
|lang="bash"
}}
== Inspect server and test relax installation ==
Install these very good server packages
Solve depencies. See alsp [[Installation_linux|Installation linux]]
{{#tag:source|
sudo apt-get -y install htop
|lang="bash"
}}
Then check server
{{#tag:source|
uptime
whoami
lscpu
htop -u `whoami`
|lang="bash"
}}
Then check mpirun
{{#tag:source|
mpirun --version
mpirun --report-bindings -np 4 echo "hello world"
mpirun --np 8 relax --multi='mpi4py'
|lang="bash"
}}