Parameterized Derived Types

Description

This repo is a minimal example to show nvfortran compiler issue with when dealing with Parameterized Derived Types (pdt) when using abstract types. A minimal working example reduced from ICON codebase.

The program contains:

• Type (t_pdt) - parameterized derived type with a kind parameter
• Type (t_base) - Abstract type with deferred function func, which takes parameter t_pdt with kind=real64
• Type (t_ext) - Non-abstract, concretized type extension of t_base which defines func

Two files are given:

• f1.90: Intended code structure
  • t_pdt defined in mo_pdt
  • t_base defined in mo_base
  • t_ext defined in mo_ext
• f2.90: Incompatible code structure, used purely for debugging
  • t_pdt defined in mo_pdt_base_ext
  • t_base defined in mo_pdt_base_ext
  • t_ext defined in mo_pdt_base_ext

Testing

Testing on Levante with compilers:

• nvhpc@22.5
• nvhpc@24.9
• gcc@11.2.0
• intel@2021.5.0
• nag@7.1.1

Usage:

• make SRC=f1.f90
• make SRC=f2.f90

Output

Compilation (y/n):

	nvhpv@22.5	nvhpc@24.9	gcc@11.2.0	intel@2021.5.0	nag@7.1.1
f1.90	n	n	y*	y	y
f2.90	y	y	n	y	y