It is highly recommended that you install XL Fortran for Blue Gene to the default location and use the procedure provided in Basic installation. However, you will need to install XL Fortran for Blue Gene in a non-default location for customized scenarios, including the following:
In all of these scenarios, you must use the Linux rpm utility to install the compiler; you can not use the xlf_install utility to do so. Once you have successfully installed the compiler to a non-default location, you will need to manually configure the compiler environment using the new_install or xlf_configure utilities; see Configuring XL Fortran (for advanced users) for procedures.