HeadlessBatch

Headless Batch

Getting started

This headless mode is the Batch one.

The advantage of this mode is how easily it is to prepare and launch, contrarily to the Headless Legacy, this mode does not need any other file than the GAML file holding the experiment of type batch.

You can run your gama experiment with a command similar to this:

./gama-headless.sh [option] -batch experimentName /path/to/file.gaml

• with:
  • -batch: the flag that indicates it is a batch exploration
  • experimentName: the name of your batch experiment in the following file
  • /path/to/file.gaml: the path (relative or absolute) to the batch experiment

Simulation Output

Unfortunatly, this mode can't save output data automatically, the actual way to do is saving wanted data inside CSV files from your model.

Calling GAMA headless using Command Prompt or Python on Windows

• First you can download GAMA with JDK version GAMA_1.9.0_Windows_with_JDK.zip
• You can open Command Prompt, change your directory to the headless folder and run gama-headless command:

cd D:\softs\GAMA_1.9.0_Windows_with_JDK\headless\
gama-headless.bat -batch Optimization samples\predatorPrey\predatorPrey.gaml

• You can also call gama-headless in with Python script :

import os
os.chdir("D:\softs\GAMA_1.9.0_Windows_with_JDK\headless")
os.system("gama-headless.bat -batch Optimization samples\predatorPrey\predatorPrey.gaml") 

Note: D:\softs\GAMA_1.9.0_Windows_with_JDK is the GAMA folder