code: def save_performance(self, ncores, nfilters, ntemplates, run_time,
                           setup_time):
          
          self.run_time = run_time
          self.setup_time = setup_time
          self.ncores = ncores
          self.nfilters = nfilters
          self.ntemplates = ntemplates
          self.write_performance = True
docs: Calls variables from pycbc_inspiral to be used in a timing calculation