Basic installation

You can use the basic installation procedure to install XL Fortran if you are installing IBM® XL Fortran for AIX®, V15.1 to the default directory, /opt/IBM/xlf/15.1.0/.

The basic installation is the easiest and fastest method because it can install the latest version and configure the compiler, all through the use of a single installation tool.

If you are using the basic installation to install IBM XL Fortran for AIX, V15.1, any previous version of the XL compiler will not be uninstalled. However, the C++ runtime library, the Fortran runtime library, and the shared-memory parallelism (SMP) runtime library will be migrated to the new versions.

If you are not installing IBM XL Fortran for AIX, V15.1 to the default directory, do not use basic installation. Instead, see the procedures in Advanced installation.

The following basic installation methods install XL Fortran to the default directory. If you have the root access or an account with superuser privileges, you can use the Bundle installation method, the System Management Interface Tool (SMIT), or the installp command to install the compiler.

You can use the basic installation methods to perform any of the following tasks:

Install IBM XL Fortran for AIX, V15.1 on a clean system.
Install IBM XL Fortran for AIX, V15.1 on a system that has a previous version of the XL compiler installed. In this case, both compilers will use the Fortran runtime library and the SMP runtime library provided with IBM XL Fortran for AIX, V15.1.
Install IBM XL Fortran for AIX, V15.1 on a system where IBM XL C for AIX, V13.1 or XL C/C++ for AIX, V13.1 is already installed. In this case, both compilers will use the SMP and MASS libraries provided with XL Fortran for AIX. (For information about installing XL C or XL C/C++ , see the IBM XL C for AIX, V13.1 or XL C/C++ for AIX, V13.1 Installation Guide.)
Install an update on a system where IBM XL Fortran for AIX, V15.1 has already been installed. In this case, use the procedure in Update installation.

Installation demonstration videos are also available on IBM Education Assistant at http://publib.boulder.ibm.com/infocenter/ieduasst/rtnv1r0/index.jsp.