Get compute instance placements.
:param gpu_instance: The identifier of the target GPU instance.
:type gpu_instance: intptr_t
:param profile_id: The compute instance profile ID. See ``nvmlGpuInstanceGetComputeInstanceProfileInfo``.
:type profile_id: unsigned int
:returns: Returns placements allowed for the profile. Can be NULL to discover number of allowed placements for this profile. If non-NULL must be large enough to accommodate the placements supported by the profile.
:rtype: nvmlComputeInstancePlacement_t
.. seealso:: `nvmlGpuInstanceGetComputeInstancePossiblePlacements`
