IBM XL C for AIX details

Exploitation of the latest POWER8 architecture

Provides the architecture and tune compiler options and built-in functions to explore POWER8®.

Shared memory parallelization

Supports application development for multiprocessor system architectures.

High performance libraries

Provides a set of libraries for high-performance mathematical computing including the Mathematical Acceleration Subsystem (MASS) and Basic Linear Algebra Subprograms (BLAS).

Profile-directed feedback (PDF)

Tunes the performance of your application for a typical usage scenario; optimizes the application based on an analysis of how often branches are taken and blocks of code are run.

Interprocedural analysis (IPA)

Optimizes across different files (whole-program analysis), and it can result in significant performance improvements.

Language standard compliance

Includes full conformance to C99 and supports a subset of C11 programming language standards; provides a complete implementation of OpenMP 3.1 and partial support for OpenMP 4.0 to automate parallel programming.

Diagnostic reports

Provides important information to help you develop and debug your applications more efficiently with the compiler listings, XML reports, and HTML reports.

Symbolic debugger support

Provides debugging information in your compiled objects when you use different levels of the -g compiler option.

Entity visibility attributes

Indicates whether and how an entity defined in one module can be referenced or used in other modules which can result in decreased size of shared libraries, reduced chance of symbol collision and improved efficiency of dynamic linking.

Technical details

Software requirements

  • AIX® V6.1 TL 2 Service Pack 5 or later
  • AIX V7.1
  • AIX V7.2
  • IBM® i V7.1 PASE V7.1
  • IBM i V7.2 PASE V7.2

Hardware requirements

  • Required hard disk space: 430 MB
  • RAM: 2 GB minimum; 4 GB or more recommended

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