You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
zeus 94166928d3 asciidoc view neo card resize 4 years ago
examples examples 4 years ago
images info 4 years ago
llllllllllllllllll ifconfig 4 years ago
llo llo 4 years ago
test data 4 years ago
LICENSE Initial commit 4 years ago
README.md examples 4 years ago
index_llllllllllllllllll.yml asciidoc view neo card resize 4 years ago
index_test.yml data 4 years ago
llllllllllllllllll_LLO.zip test llo 4 years ago
llo-index.yml llo 4 years ago
test_LLO.zip test llo 4 years ago

README.md

mpi !

Instances of Ubuntu Linux with MPICH -- portable implementation of Message Passing Interface (MPI) standard. Designed for MPI program development and deployment.

LabInstance mpi2

alt text

NOTE

Vlabs are reset every night around 02:00!

If you would like to keep your work please refer to "publish".

Vlabs dont have firewall restrictions BUT the machines are not exposed to the internet.

You share all machines so please be cooperative and discrete.

Quickstart

This is a quickstart guide of howto use this LabInstance to deploy MPI programs

HowTo use it

  • cd /home/ubuntu

git clone https://git.swarmlab.io:3000/labs/examples-mpi2.git

  • cd examples-mpi2/examples

make all

Default Configuration

  • Working Directory

/home/ubuntu

  • Default user

ubuntu

Find lab workers

The host file that contains addresses of connected workers can be created with:

swarmlab-getworkers > /home/ubuntu/invhosts

connect to workers

 ssh ubuntu@[IP]
 Info:  user has sudo privileges without a password

Compile

mpicc -o /home/ubuntu/mpi_hello_world examples/mpi_hello_world.c

run the MPI hello world program

mpirun -n 10 -f /home/ubuntu/hosts /home/ubuntu/mpi_hello_world


NOTE: copy hello world to all clients

# scp hello wrold to all clients. sudo -u mpi for auto scp connect. see /home/mpi/.ssh 
while read -r line; 
 do 
   scp /home/ubuntu/mpi_hello_world ubuntu@$line:/home/ubuntu/mpi_hello_world
done < /home/ubuntu/hosts

Publish Your Work


 mkdir /home/ubuntu/directory
 put your files and other directories into /home/ubuntu/directory
 swarmlab-publish /home/ubuntu/directory
 open URL in Browser


MORE INFO

See examples directory


 cd examples
 make mpi_hello_world
 make example ex=squares
 ...