Linux

Prerequisites

Twister2 build needs several software installed on your system.

  1. Operating System
    • Twister2 is tested and known to work on,
      • Red Hat Enterprise Linux Server release 7
      • Ubuntu 16.10 and Ubuntu 18.10
  2. Java 
JAVA_HOME=
PATH=$JAVA_HOME/bin:$PATH
export JAVA_HOME PATH

which java
:exclamation: After installing java, you may follow below two steps to automatically configure your environment and build twister2. Currently this works only on Debian distributions with sudo access. Skip steps upto Twister2 Distribution if this is applicable.
 
git clone https://github.com/DSC-SPIDAL/twister2.git
cd twister2
./build_linux.sh
  1. Install the required tools
sudo apt-get install g++ git build-essential automake cmake libtool-bin zip libunwind-setjmp0-dev zlib1g-dev unzip pkg-config python-setuptools -y libnuma-dev libc-dev

sudo apt-get install  python3-dev python3-pip

Now install wheel

sudo pip install wheel
  1. Installing maven and configure it as follows :
  wget https://archive.apache.org/dist/maven/maven-3/3.6.2/binaries/apache-maven-3.6.2-bin.tar.gz

Extract this to a directory called maven configure the environmental variables

  MAVEN_HOME=
  PATH=$MAVEN_HOME/bin:$PATH
  export MAVEN_HOME PATH

  1. Install bazel 1.1.0

    wget https://github.com/bazelbuild/bazel/releases/download/1.1.0/bazel-1.1.0-installer-linux-x86_64.sh
chmod +x bazel-1.1.0-installer-linux-x86_64.sh
./bazel-1.1.0-installer-linux-x86_64.sh --user

    Make sure to add the bazel bin to PATH. You can add this line to ~\.bashrc file.

    export PATH=$PATH:~/bin

Compiling Twister2

Now lets get a clone of the source code.

git clone https://github.com/DSC-SPIDAL/twister2.git

You can compile the Twister2 distribution by using the bazel target as below.

cd twister2
bazel build --config=ubuntu scripts/package:tarpkgs

This will build twister2 distribution in the file

bazel-bin/scripts/package/twister2-0.4.0.tar.gz

If you would like to compile the twister2 without building the distribution packages use the command

bazel build --config=ubuntu twister2/...

For compiling a specific target such as communications

bazel build --config=ubuntu twister2/comms/src/java:comms-java

Twister2 Distribution

After you've build the Twister2 distribution, you can extract it and use it to submit jobs.

cd bazel-bin/scripts/package/
tar -xvf twister2-0.4.0.tar.gz
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