System prerequisites

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

The following are the requirements for installing IBM® XL Fortran for Blue Gene®/Q, V14.1:

Operating system:
On the Blue Gene/Q Front End node, you can use the Red Hat Enterprise Linux 6.2 (RHEL 6.2) operating system, which is supported by the IBM Power® System servers.
Hardware:
You can use any of the IBM Power Systems™ servers as long as it is supported by your operating system distribution. For a complete list of the new IBM Power Systems servers, see http://www.ibm.com/systems/power/hardware/.
Storage:
- Approximately 300 MB for product packages
- Minimum of 2 GB hard drive space for paging
- Minimum of 512 MB for temporary files
Note: High levels of optimization can require more space for paging and temporary files.

To verify that you have enough hard disk space available, see Verifying the amount of hard disk space available.
Required software:
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
- Blue Gene®/Q tool chain and runtime environment packages. For information on these packages, see the redbooks referenced in the preface of this document, or contact your system administrator.
- GNU and Perl packages, as listed in the following tables. To verify that the required packages are installed, see Verifying that the required GNU and Perl packages are installed.

Note: Packages marked with an asterisk (*) must be available in both 32-bit and 64-bit versions.

Table 1. Required GNU and Perl packages for the RHEL 6.2 operating system
Package name	Version requirements
gcc	4.4.5
gcc-c++	4.4.5
glibc*	2.12
glibc-devel*	2.12
libgcc*	4.4.5
libstdc++*	4.4.5
libstdc++-devel*	4.4.5
compat-libstdc++-33	3.2.3
perl	5.0 or greater Note: Perl V5.8 is shipped and automatically installed with the RHEL 6.2 operating system.

Note: The 32-bit libraries are not installed by default on RHEL 6.2, they must be installed from the RHEL 6.2 operating system image.

To view the documentation that is packaged with IBM XL Fortran for Blue Gene/Q, V14.1, you will need:

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)
PDF viewer (to access PDF documentation)