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Commit 1cb3e05d authored by Gregory Ashton's avatar Gregory Ashton
Browse files

Update to Nstar description

parent 800659c1
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Inline Side-by-side
pyfstat/mcmc_based_searches.py
View file @ 1cb3e05d
......@@ -1872,9 +1872,9 @@ class MCMCFollowUpSearch(MCMCSemiCoherentSearch):
d = pickle.load(f)
return d
def write_setup_input_file(self, run_setup_input_file, R, Nsegs0,
def write_setup_input_file(self, run_setup_input_file, NstarMax, Nsegs0,
nsegs_vals, Nstar_vals, theta_prior):
d = dict(R=R, Nsegs0=Nsegs0, nsegs_vals=nsegs_vals,
d = dict(NstarMax=NstarMax, Nsegs0=Nsegs0, nsegs_vals=nsegs_vals,
theta_prior=theta_prior, Nstar_vals=Nstar_vals)
with open(run_setup_input_file, 'w+') as f:
pickle.dump(d, f)
......@@ -1886,19 +1886,19 @@ class MCMCFollowUpSearch(MCMCSemiCoherentSearch):
return True
else:
logging.info(
'Old setup does not match one of R, Nsegs0 or prior')
'Old setup does not match one of NstarMax, Nsegs0 or prior')
except KeyError as e:
logging.info(
'Error found when comparing with old setup: {}'.format(e))
return False
def init_run_setup(self, run_setup=None, R=10, Nsegs0=None, log_table=True,
gen_tex_table=True):
def init_run_setup(self, run_setup=None, NstarMax=1000, Nsegs0=None,
log_table=True, gen_tex_table=True):
if run_setup is None and Nsegs0 is None:
raise ValueError(
'You must either specify the run_setup, or Nsegs0 from which '
'the optimal run_setup given R can be estimated')
'You must either specify the run_setup, or Nsegs0 and NStarMax'
' from which the optimal run_setup can be estimated')
if run_setup is None:
logging.info('No run_setup provided')
......@@ -1909,11 +1909,12 @@ class MCMCFollowUpSearch(MCMCSemiCoherentSearch):
logging.info('Checking old setup input file {}'.format(
run_setup_input_file))
old_setup = self.read_setup_input_file(run_setup_input_file)
if self.check_old_run_setup(old_setup, R=R,
if self.check_old_run_setup(old_setup, NstarMax=NstarMax,
Nsegs0=Nsegs0,
theta_prior=self.theta_prior):
logging.info('Using old setup with R={}, Nsegs0={}'.format(
R, Nsegs0))
logging.info(
'Using old setup with NstarMax={}, Nsegs0={}'.format(
NstarMax, Nsegs0))
nsegs_vals = old_setup['nsegs_vals']
Nstar_vals = old_setup['Nstar_vals']
generate_setup = False
......@@ -1924,11 +1925,11 @@ class MCMCFollowUpSearch(MCMCSemiCoherentSearch):
if generate_setup:
nsegs_vals, Nstar_vals = get_optimal_setup(
R, Nsegs0, self.tref, self.minStartTime,
NstarMax, Nsegs0, self.tref, self.minStartTime,
self.maxStartTime, self.theta_prior,
self.search.detector_names, self.earth_ephem,
self.sun_ephem)
self.write_setup_input_file(run_setup_input_file, R, Nsegs0,
self.write_setup_input_file(run_setup_input_file, NstarMax, Nsegs0,
nsegs_vals, Nstar_vals,
self.theta_prior)
......@@ -2002,9 +2003,9 @@ class MCMCFollowUpSearch(MCMCSemiCoherentSearch):
else:
return run_setup
def run(self, run_setup=None, proposal_scale_factor=2, R=10, Nsegs0=None,
create_plots=True, log_table=True, gen_tex_table=True, fig=None,
axes=None, return_fig=False, **kwargs):
def run(self, run_setup=None, proposal_scale_factor=2, NstarMax=10,
Nsegs0=None, create_plots=True, log_table=True, gen_tex_table=True,
fig=None, axes=None, return_fig=False, **kwargs):
""" Run the follow-up with the given run_setup
Parameters
......@@ -2029,7 +2030,7 @@ class MCMCFollowUpSearch(MCMCSemiCoherentSearch):
self.nsegs = 1
self._initiate_search_object()
run_setup = self.init_run_setup(
run_setup, R=R, Nsegs0=Nsegs0, log_table=log_table,
run_setup, NstarMax=NstarMax, Nsegs0=Nsegs0, log_table=log_table,
gen_tex_table=gen_tex_table)
self.run_setup = run_setup
......
pyfstat/optimal_setup_functions.py
View file @ 1cb3e05d
......@@ -14,13 +14,13 @@ import pyfstat.helper_functions as helper_functions
def get_optimal_setup(
R, Nsegs0, tref, minStartTime, maxStartTime, prior,
NstarMax, Nsegs0, tref, minStartTime, maxStartTime, prior,
detector_names, earth_ephem, sun_ephem):
""" Using an optimisation step, calculate the optimal setup ladder
Parameters
----------
R : float
NstarMax : float
Nsegs0 : int
The number of segments for the initial step of the ladder
minStartTime, maxStartTime : int
......@@ -38,8 +38,8 @@ def get_optimal_setup(
"""
logging.info('Calculating optimal setup for R={}, Nsegs0={}'.format(
R, Nsegs0))
logging.info('Calculating optimal setup for NstarMax={}, Nsegs0={}'.format(
NstarMax, Nsegs0))
Nstar_0 = get_Nstar_estimate(
Nsegs0, tref, minStartTime, maxStartTime, prior,
......@@ -54,7 +54,7 @@ def get_optimal_setup(
nsegs_i = Nsegs0
while nsegs_i > 1:
nsegs_i, Nstar_i = _get_nsegs_ip1(
nsegs_i, R, tref, minStartTime, maxStartTime, prior,
nsegs_i, NstarMax, tref, minStartTime, maxStartTime, prior,
detector_names, earth_ephem, sun_ephem)
nsegs_vals.append(nsegs_i)
Nstar_vals.append(Nstar_i)
......@@ -65,11 +65,11 @@ def get_optimal_setup(
return nsegs_vals, Nstar_vals
def _get_nsegs_ip1(nsegs_i, R, tref, minStartTime, maxStartTime, prior,
def _get_nsegs_ip1(nsegs_i, NstarMax, tref, minStartTime, maxStartTime, prior,
detector_names, earth_ephem, sun_ephem):
""" Calculate Nsegs_{i+1} given Nsegs_{i} """
log10R = np.log10(R)
log10NstarMax = np.log10(NstarMax)
log10Nstari = np.log10(get_Nstar_estimate(
nsegs_i, tref, minStartTime, maxStartTime, prior,
detector_names, earth_ephem, sun_ephem))
......@@ -89,9 +89,10 @@ def _get_nsegs_ip1(nsegs_i, R, tref, minStartTime, maxStartTime, prior,
return 1e6
else:
log10Nstarip1 = np.log10(Nstarip1)
return np.abs(log10Nstari + log10R - log10Nstarip1)
res = scipy.optimize.minimize(f, .5*nsegs_i, method='Powell', tol=0.1,
return np.abs(log10Nstari + log10NstarMax - log10Nstarip1)
res = scipy.optimize.minimize(f, .4*nsegs_i, method='Powell', tol=1,
options={'maxiter': 10})
logging.info('{} with {} evaluations'.format(res['message'], res['nfev']))
nsegs_ip1 = int(res.x)
if nsegs_ip1 == 0:
nsegs_ip1 = 1
......
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