IBM XL Fortran

XL Fortran is the name of IBM's proprietary optimizing Fortran compiler for IBM-supported environments, including Linux for little-endian distributions and AIX.

Features

• Tuning for Power ISA
• Fortran language standard support (XL Fortran's Fortran 2008 Compliance Status and XL Fortran's TS 29113 Compliance Status)
• CUDA Fortran support ^[1]
• OpenMP API support ^[2]
• Five optimization levels (-O0,-O2,-O3,-O4,-O5) ^[3]
• Profile-directed feedback optimization
• Interprocedural optimization and inlining
• High order transformations ^[4]

References

1. "Reference and limitations for CUDA Fortran support". IBM Knowledge Center. IBM. Retrieved 30 Nov 2018.
2. "Parallel programming with XL Fortran". IBM Knowledge Center. IBM. Retrieved 30 Nov 2018.
3. "-O". IBM Knowledge Center. IBM. Retrieved 30 Nov 2018.
4. "High-order transformation (HOT)". IBM Knowledge Center. IBM. Retrieved 30 Nov 2018.

External links

• IBM Fortran Compilers family introduction
• Product documentation: XL Fortran for Linux, V16.1.1
• Product documentation: XL Fortran for AIX, V16.1.0
• Community: IBM XL C, C++, and Fortran Compilers for Power servers