i don’t think, any of the opencv_core_parallel_XXXX dlls exist on your (or my) machine.
this is a quite new, experimental feature:
it seems, you can override the builtin parallel framework, if you can supply such a dll at runtime. (don’t ask me, where the code for this is)
tl;dr:
you’re safe to ignore those warnings,
and maybe it should not be “info” but rather “debug” log level, there…