Get IGB using native installer for your platform
Get the latest version of IGB from Bioviz.org. Follow the downloads link to get an IGB installer for your platform.
Note that the Windows and Mac installers include IGB and also the version of Java that works best for IGB.
Note: Linux users must make sure their system has Java 1.8 or greater installed.
Get compiled IGB (not using native installer)
You can get a "zip" file with compiled IGB from this link: http://www.bioviz.org/igb/releases/current/igb.zip
Unpack the "zip" file and launch IGB using the IGB run script for your platform: run_igb.bat for Windows, run_igb.command for Mac, and run_igb.sh for Linux.
Installing on Linux requires Java 1.8 or higher
Download the Linux installer and run it using:
sh IGB_unix_current.sh
How to get older versions of IGB
Older versions of IGB are available from this link: http://sourceforge.net/projects/genoviz/files/
How to change IGB memory usage
If you used the IGB installer, then when IGB starts, it will use 25% of your system's memory. This means that when IGB runs on a machine with 4 GB of memory (RAM), it will use 1 GB. Or if IGB starts on a machine with 16 GB of RAM, it will use around 4 GB of memory. You can see how much memory IGB is using by looking at the lower right corner of the IGB window.
The only exception is when you run IGB on a 32-bit Windows computer. In that case, IGB will use 1GB of RAM.
You can also change how much memory IGB can use.
There is a "vmoptions" file in your IGB installation directory which contains a commented-out jvm argument that sets the max heap size, which is the amount of memory IGB uses.
To change the heap size, un-comment the jvm argument line and modify to suit your needs.
The vmoptions file on Mac is located in /Applications/Integrated Genome Browser/IntegratedGenomeBrowser.app/Contents/vmoptions.txt
On Linux/Windows, the vmoptions file is in ${IGB_INSTALLATION_DIR}/IntegratedGenomeBrowser.vmoptions, where $IGB_INSTALLATION_DIR is the folder where IGB resides.