'The ``-V`` option works for all the PGI compilers.
Output looks like this::
pgcc 15.10-0 64-bit target on x86-64 Linux -tp sandybridge
The Portland Group - PGI Compilers and Tools
Copyright (c) 2015, NVIDIA CORPORATION.  All rights reserved.
on x86-64, and::
pgcc 17.4-0 linuxpower target on Linuxpower
PGI Compilers and Tools
Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
on PowerPC.'

@classmethod
def default_version(cls, comp):

    return get_compiler_version(comp, '-V', 'pg[^    ]*    ([0-9.]+)-[0-9]+    [^    ]+    target    on    ')
