In Vitis linker, a CU or kernel is associated to
instances marked with PFM.REGION by using the same
string label with the additional connectivity directive connectivity.region. This indicates that the kernel is to be placed close
with other kernels or IPs in the same SLR.
For the v++ linker, the region is set with the
command line option --connectivity.region arg
<cu_name>:<label>. In the linker configuration file, it is
specified as follows:
[connectivity]
region=<region_label>:<cu_name_1>,<cu_name_2>