open64

Version:: 4.5.2.1
Category:: compiler
Cluster:: Loki

Author / Distributor

https://github.com/open64-compiler/open64

Description

Open64 is a legacy, open-source optimizing compiler suite originally developed by SGI and later maintained by the community. It supports C, C++, and Fortran 77/95 and was widely used in academic and HPC research for its advanced optimization passes and IR-level experimentation capabilities.

Documentation

Available compilers:
  opencc   - C compiler
  openCC   - C++ compiler
  openf95  - Fortran 95 compiler

Help:
  $ opencc --help
  $ openCC --help
  $ openf95 --help

Example flags:
  -O0/-O1/-O2/-O3       Optimization levels
  -march=native         Enable architecture-specific tuning
  -ipa                  Enable interprocedural analysis
  -INLINE               Enable function inlining

Additional info may be found in archived docs or the man pages.

Examples/Usage

List available modules:
```
$ module avail open64
```
Load the open64 module:
```
$ module load compiler/open64/4.5.2.1
```
Check the loaded modules:
```
$ module list
```

Unload the open64 module:

$ module unload compiler/open64/4.5.2.1

Installation

Source code is obtained from open64