Does it run on personal computers with Intel or AMD CPUs? The compiler section of Fortran-lang says
IBM
IBM® XL Fortran for Linux is an industry standards-based programming tool used to develop large and complex applications in the Fortran programming language. It generates code that leverages the capabilities of the latest POWER9 architecture and maximizes your hardware utilization. IBM XL Fortran for Linux optimizes your infrastructure on IBM Power Systems™ in support of extensive numerical, scientific and high-performance computing.
A community edition of the IBM XL compilers are available free of charge. The compilers support Linux and AIX platforms and ppc64le architectures.
and the IBM site says
Hardware requirements
You can use any IBM Power Systems server as long as it is supported by your operating system distribution. For a complete list of the IBM Power Systems servers, see IT Infrastructure Solutions | IBM.