System prerequisites

Ensure that your system meets all prerequisites before installing the product. Failure to meet the prerequisites will cause the installation or configuration of the compiler to fail.

Supported platforms

You can use any of the following operating systems supported by the IBM® Power Systems servers:
  • Red Hat® Enterprise Linux® (RHEL) 8.4, 8.6, or 9.0
  • Ubuntu 20.24 or 22.04
  • SUSE Linux Enterprise Server (SLES) 15 SP3
Note: More operation systems will be supported in later releases or fix packs. For more information, check Fix list for IBM Open XL Fortran for Linux on Power®.

Hardware requirements

You can use any IBM Power Systems server as long as it is supported by any operating system distribution on the preceding "Supported platforms" list. For a complete list of the IBM Power Systems servers, see https://www.ibm.com/it-infrastructure/power.

  • Approximately 350 MB for product packages
  • Minimum of 2 GB hard drive space for paging
  • Minimum of 512 MB for temporary files
  • 2 GB RAM minimum; 4 GB or more RAM recommended
Note: High levels of optimization and large applications can require more space for paging and temporary files, and can require more RAM.

To verify that you have enough hard disk space available, see Verifying the amount of hard disk space available.

Software requirements

To determine which GNU and Perl packages are required to run the compiler on your operating system, consult the relevant table below. To verify that the required packages are installed, see Verifying that the required GNU and Perl packages are installed.

Table 1. Required minimum versions of GNU and Perl packages for the Ubuntu operating system
Package name Version requirements
gcc 9.4.0
g++ 9.4.0
libc6 2.27
libstdc++6 7.3.0
libgcc1 8
libxml2 2.9
perl 5.30.0
Table 2. Required minimum versions of GNU and Perl packages for the SLES operating system
Package name Version requirements
gcc 7.3
gcc-c++ 7.3
glibc 2.31
libgcc_s1 10.2.1
libstdc++6 10.2.1
libxml2 2.9
perl 5.26.1
Table 3. Required minimum versions of GNU and Perl packages for the RHEL operating system
Package name Version requirements
gcc 8.4.1
gcc-c++ 8.4.1
glibc 2.28
libstdc++ 8.4.1
libgcc 8.4.1
libxml2 2.9
perl 5.26.3

You can find the IBM Open XL Fortran Runtime Environment package at https://www.ibm.com/support/pages/node/335879.

To view the online documentation for IBM Open XL Fortran for Linux on Power 17.1.1, you need the following environment and tools:

  • A graphical desktop environment (such as K Desktop Environment or GNOME) that supports web browsers and PDF viewers
  • A frames-capable HTML browser (to access help and other web pages)
  • A PDF viewer (to access PDF documentation)