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Force Field X Development

Install

Instructions for installing Force Field X on Linux, Mac OS X and Microsoft Windows are given below. For all operating systems, the Java Runtime Environment must be present.

Prerequisite: Install Java

Please install version 17 or later of the Java Development Kit (JDK) from AdoptOpenJDK. Detailed Java installation instructions for Linux, Mac OS, and Microsoft Windows are available.

Linux

LINUX

  1. In a shell execute:

    echo $JAVA_HOME

    If JAVA_HOME is not set or the JDK version is less than 17, then follow the instructions above to install Java and/or set the JAVA_HOME environment variable.

  2. Commands to unpack the three distribution formats are: 

    tar -xzf ffx-1.0.0-beta-bin.tar.gz
    tar -xjf ffx-1.0.0-beta-bin.tar.bz2
    unzip ffx-1.0.0-beta-bin.zip

  3. Add the directory ffx/bin to your path. For example, if ffx is unpacked into /Users/shared/ffx, then

    • Within a BASH shell:

      export PATH="/Users/shared/ffx/bin:$PATH"

    • Within a CSH shell:

      setenv PATH "/Users/shared/ffx/bin:$PATH"

    To check please execute: 

    echo $PATH
    and 
    which ffxc

MacOS

MacOS

  1. Type "echo $JAVA_HOME" in a shell. The result should resemble this: 

                                                echo $JAVA_HOME
                                          /Library/Java/JavaVirtualMachines/jdk-17.jdk/Contents/Home/bin/java
    If the version is less than 17, then please follow the instructions above to install Java and/or set the JAVA_HOME environment variable.

  2. Commands to unpack the distributions are:

                                            tar -xzf ffx-1.0.0-beta-bin.tar.gz
                                        tar -xjf ffx-1.0.0-beta-bin.tar.bz2
                                        unzip ffx-1.0.0-beta-bin.zip

  3. Add the directory ffx/bin to your path. For example, if ffx is unpacked into /Users/shared/ffx, then

    • Within a BASH shell:

      export PATH="/Users/shared/ffx/bin:$PATH"

    • Within a CSH shell:

      setenv PATH "/Users/shared/ffx/bin:$PATH"

    To check please execute:

                                            echo $PATH
                                        which ffxc

Microsoft Windows

MS WINDOWS

  1. Type " echo %JAVA_HOME%" at a Shell prompt.

    If JAVA_HOME is not set or the version is less than 17, then please follow the Java installation instructions above.