When generating the hardware image, the step that consumes most time is the Platform step in
the Makefile, which builds the hardware platform by linking kernels and AIE graph to a
base hardware platform. If you have access to a machine with more processors, you can
parallelize the jobs by running them on multiple processors. To do that, update the
NPROC value (the default is 4) in run_hw.sh
and (re)run. Use caution while working on a shared machine as all the processors may not
be available for use.