def sifting_job(job):
# Make the single-pulse plots
basedmb = job.basefilenm+"_DM"
basedmb_zerodm = job.basefilenm+"_zerodm_DM"
basedme = ".singlepulse "
# The following will make plots for DM ranges:
# 0-110, 100-310, 300-1000+
dmglobs = [basedmb+"[0-9].[0-9][0-9]"+basedme +
basedmb+"[0-9][0-9].[0-9][0-9]"+basedme +
basedmb+"10[0-9].[0-9][0-9]"+basedme,
basedmb+"[12][0-9][0-9].[0-9][0-9]"+basedme +
basedmb+"30[0-9].[0-9][0-9]"+basedme,
basedmb+"[3-9][0-9][0-9].[0-9][0-9]"+basedme +
basedmb+"1[0-9][0-9][0-9].[0-9][0-9]"+basedme]
dmrangestrs = ["0-110", "100-310", "300-1000+"]
psname = job.basefilenm+"_singlepulse.ps"
psname_zerodm = job.basefilenm+"_zerodm_singlepulse.ps"
if config.searching.use_zerodm_sp:
dmglobs.extend([basedmb_zerodm+"[0-9].[0-9][0-9]"+basedme +
basedmb_zerodm+"[0-9][0-9].[0-9][0-9]"+basedme +
basedmb_zerodm+"10[0-9].[0-9][0-9]"+basedme,
basedmb_zerodm+"[12][0-9][0-9].[0-9][0-9]"+basedme +
basedmb_zerodm+"30[0-9].[0-9][0-9]"+basedme,
basedmb_zerodm+"[3-9][0-9][0-9].[0-9][0-9]"+basedme +
basedmb_zerodm+"1[0-9][0-9][0-9].[0-9][0-9]"+basedme])
dmrangestrs.extend(["0-110_zerodm", "100-310_zerodm", "300-1000+_zerodm"])
for dmglob, dmrangestr in zip(dmglobs, dmrangestrs):
dmfiles = []
for dmg in dmglob.split():
dmfiles += glob.glob(dmg.strip())
# Check that there are matching files and they are not all empty
if dmfiles and sum([os.path.getsize(f) for f in dmfiles]):
cmd = 'single_pulse_search.py -t %f -g "%s"' % \
(config.searching.singlepulse_plot_SNR, dmglob)
job.singlepulse_time += timed_execute(cmd)
if dmrangestr.endswith("zerodm"):
os.rename(psname_zerodm,
job.basefilenm+"_DMs%s_singlepulse.ps" % dmrangestr)
else:
os.rename(psname,
job.basefilenm+"_DMs%s_singlepulse.ps" % dmrangestr)
# Compute a binary summary of all SP candidates
cmd = "singlepulse2bin -q -b %s"%job.basefilenm
job.singlepulse_time += timed_execute(cmd)
# Recompute the DM list
dmstrs = []
for ddplan in job.ddplans:
for passnum in range(ddplan.numpasses):
for dmstr in ddplan.dmlist[passnum]:
dmstrs.append(dmstr)
# Sift through the candidates to choose the best to fold
job.sifting_time = time.time()
# TODO
for ipart in range(config.searching.split):
tmp_accel_cands = sifting.read_candidates(glob.glob("*part%dx*ACCEL_%d" % (ipart, config.searching.hi_accel_zmax)))
if len(tmp_accel_cands):
tmp_accel_cands = sifting.remove_duplicate_candidates(tmp_accel_cands)
if len(tmp_accel_cands):
tmp_accel_cands = sifting.remove_DM_problems(tmp_accel_cands, config.searching.numhits_to_fold,
dmstrs, config.searching.low_DM_cutoff)
if ipart: hi_accel_cands += tmp_accel_cands
else: hi_accel_cands = tmp_accel_cands
lo_accel_cands = sifting.read_candidates(glob.glob("*ACCEL_%d" % config.searching.lo_accel_zmax))
if len(lo_accel_cands):
lo_accel_cands = sifting.remove_duplicate_candidates(lo_accel_cands)
if len(lo_accel_cands):
lo_accel_cands = sifting.remove_DM_problems(lo_accel_cands, config.searching.numhits_to_fold,
dmstrs, config.searching.low_DM_cutoff)
job.all_accel_cands = lo_accel_cands + hi_accel_cands
if len(job.all_accel_cands):
job.all_accel_cands = sifting.remove_duplicate_candidates(job.all_accel_cands)
job.all_accel_cands = sifting.remove_harmonics(job.all_accel_cands)
# Note: the candidates will be sorted in _sigma_ order, not _SNR_!
job.all_accel_cands.sort(sifting.cmp_sigma)
print "Sending candlist to stdout before writing to file"
sifting.write_candlist(job.all_accel_cands)
sys.stdout.flush()
sifting.write_candlist(job.all_accel_cands, job.basefilenm+".accelcands")
# Make sifting summary plots
job.all_accel_cands.plot_goodbad()
plt.title("%s Rejected Cands" % job.basefilenm)
plt.savefig(job.basefilenm+".accelcands.rejects.png")
job.all_accel_cands.plot_summary()
plt.title("%s Periodicity Summary" % job.basefilenm)
plt.savefig(job.basefilenm+".accelcands.summary.png")
# Write out sifting candidate summary
job.all_accel_cands.print_cand_summary(job.basefilenm+".accelcands.summary")
# Write out sifting comprehensive report of bad candidates
job.all_accel_cands.write_cand_report(job.basefilenm+".accelcands.report")
timed_execute("gzip -f --best %s" % job.basefilenm+".accelcands.report")
# Moving of results to resultsdir now happens in clean_up(...)
# shutil.copy(job.basefilenm+".accelcands", job.outputdir)
job.sifting_time = time.time() - job.sifting_time
def search_job(job):
"""Search the observation defined in the obs_info
instance 'job'.
"""
# Use whatever .zaplist is found in the current directory
zaplist = glob.glob("*.zaplist")[0]
print "Using %s as zaplist" % zaplist
if config.searching.use_subbands and config.searching.fold_rawdata:
# make a directory to keep subbands so they can be used to fold later
try:
os.makedirs(os.path.join(job.workdir, 'subbands'))
except: pass
# rfifind the data file
cmd = "rfifind %s -time %.17g -o %s %s" % \
(config.searching.datatype_flag, config.searching.rfifind_chunk_time, job.basefilenm,
job.filenmstr)
job.rfifind_time += timed_execute(cmd, stdout="%s_rfifind.out" % job.basefilenm)
maskfilenm = job.basefilenm + "_rfifind.mask"
# Find the fraction that was suggested to be masked
# Note: Should we stop processing if the fraction is
# above some large value? Maybe 30%?
job.masked_fraction = find_masked_fraction(job)
# Iterate over the stages of the overall de-dispersion plan
dmstrs = []
for ddplan in job.ddplans:
# Iterate over the individual passes through the data file
for passnum in range(ddplan.numpasses):
subbasenm = "%s_DM%s"%(job.basefilenm, ddplan.subdmlist[passnum])
if config.searching.use_subbands:
try:
os.makedirs(os.path.join(job.tempdir, 'subbands'))
except: pass
# Create a set of subbands
cmd = "prepsubband %s -sub -subdm %s -downsamp %d -nsub %d -mask %s " \
"-o %s/subbands/%s %s" % \
(config.searching.datatype_flag, ddplan.subdmlist[passnum], ddplan.sub_downsamp,
ddplan.numsub, maskfilenm, job.tempdir, job.basefilenm,
job.filenmstr)
job.subbanding_time += timed_execute(cmd, stdout="%s.subout" % subbasenm)
# Now de-disperse using the subbands
cmd = "prepsubband -lodm %.2f -dmstep %.2f -numdms %d -downsamp %d " \
"-nsub %d -numout %d -o %s/%s %s/subbands/%s.sub[0-9]*" % \
(ddplan.lodm+passnum*ddplan.sub_dmstep, ddplan.dmstep,
ddplan.dmsperpass, ddplan.dd_downsamp, ddplan.numsub,
psr_utils.choose_N(job.orig_N/ddplan.downsamp),
job.tempdir, job.basefilenm, job.tempdir, subbasenm)
job.dedispersing_time += timed_execute(cmd, stdout="%s.prepout" % subbasenm)
if config.searching.use_zerodm_sp or config.searching.use_zerodm_accel:
cmd = "prepsubband -lodm %.2f -dmstep %.2f -numdms %d -downsamp %d " \
"-nsub %d -numout %d -zerodm -o %s/%s_zerodm %s/subbands/%s.sub[0-9]*" % \
(ddplan.lodm+passnum*ddplan.sub_dmstep, ddplan.dmstep,
ddplan.dmsperpass, ddplan.dd_downsamp, ddplan.numsub,
psr_utils.choose_N(job.orig_N/ddplan.downsamp),
job.tempdir, job.basefilenm, job.tempdir, subbasenm)
job.dedispersing_time += timed_execute(cmd, stdout="%s.prepout" % subbasenm)
else: # Not using subbands
cmd = "prepsubband -mask %s -lodm %.2f -dmstep %.2f -numdms %d -downsamp %d " \
"-numout %d -nsub %d -o %s/%s %s"%\
(maskfilenm, ddplan.lodm+passnum*ddplan.sub_dmstep, ddplan.dmstep,
ddplan.dmsperpass, ddplan.dd_downsamp*ddplan.sub_downsamp,
psr_utils.choose_N(job.orig_N/ddplan.downsamp), ddplan.numsub,
job.tempdir, job.basefilenm, job.filenmstr)
job.dedispersing_time += timed_execute(cmd)
# Iterate over all the new DMs
for dmstr in ddplan.dmlist[passnum]:
dmstrs.append(dmstr)
basenm = os.path.join(job.tempdir, job.basefilenm+"_DM"+dmstr)
basenm_zerodm = os.path.join(job.tempdir, job.basefilenm+"_zerodm_DM"+dmstr)
datnm = basenm+".dat"
datnm_zerodm = basenm_zerodm+".dat"
fftnm = basenm+".fft"
infnm = basenm+".inf"
# Do the single-pulse search
cmd = "single_pulse_search.py -p -m %f -t %f %s"%\
(config.searching.singlepulse_maxwidth, \
config.searching.singlepulse_threshold, datnm)
job.singlepulse_time += timed_execute(cmd)
try:
shutil.move(basenm+".singlepulse", job.workdir)
except: pass
if config.searching.use_zerodm_sp:
cmd = "single_pulse_search.py -p -m %f -t %f %s"%\
(config.searching.singlepulse_maxwidth, \
config.searching.singlepulse_threshold, datnm_zerodm)
job.singlepulse_time += timed_execute(cmd)
try:
shutil.move(basenm_zerodm+".singlepulse", job.workdir)
except: pass
# FFT, zap, and de-redden
cmd = "realfft %s"%datnm
job.FFT_time += timed_execute(cmd)
cmd = "zapbirds -zap -zapfile %s -baryv %.6g %s"%\
(zaplist, job.baryv, fftnm)
job.FFT_time += timed_execute(cmd)
cmd = "rednoise %s"%fftnm
job.FFT_time += timed_execute(cmd)
try:
os.rename(basenm+"_red.fft", fftnm)
except: pass
# Do the low-acceleration search
cmd = "accelsearch -harmpolish -numharm %d -sigma %f " \
"-zmax %d -flo %f %s"%\
(config.searching.lo_accel_numharm, \
config.searching.lo_accel_sigma, \
config.searching.lo_accel_zmax, \
config.searching.lo_accel_flo, fftnm)
job.lo_accelsearch_time += timed_execute(cmd)
try:
os.remove(basenm+"_ACCEL_%d.txtcand" % config.searching.lo_accel_zmax)
except: pass
try: # This prevents errors if there are no cand files to copy
shutil.move(basenm+"_ACCEL_%d.cand" % config.searching.lo_accel_zmax, \
job.workdir)
shutil.move(basenm+"_ACCEL_%d" % config.searching.lo_accel_zmax, \
job.workdir)
except: pass
# Do the high-acceleration search
cmd = "accelsearch -harmpolish -numharm %d -sigma %f " \
"-zmax %d -flo %f %s"%\
(config.searching.hi_accel_numharm, \
config.searching.hi_accel_sigma, \
config.searching.hi_accel_zmax, \
config.searching.hi_accel_flo, fftnm)
job.hi_accelsearch_time += timed_execute(cmd)
try:
os.remove(basenm+"_ACCEL_%d.txtcand" % config.searching.hi_accel_zmax)
except: pass
try: # This prevents errors if there are no cand files to copy
shutil.move(basenm+"_ACCEL_%d.cand" % config.searching.hi_accel_zmax, \
job.workdir)
shutil.move(basenm+"_ACCEL_%d" % config.searching.hi_accel_zmax, \
job.workdir)
except: pass
# Move the .inf files
try:
shutil.move(infnm, job.workdir)
except: pass
# Remove the .dat and .fft files
try:
os.remove(datnm)
except: pass
try:
os.remove(fftnm)
except: pass
if config.searching.use_subbands:
if config.searching.fold_rawdata:
# Subband files are no longer needed
shutil.rmtree(os.path.join(job.tempdir, 'subbands'))
else:
# Move subbands to workdir
for sub in glob.glob(os.path.join(job.tempdir, 'subbands', "*")):
shutil.move(sub, os.path.join(job.workdir, 'subbands'))
# Make the single-pulse plots
basedmb = job.basefilenm+"_DM"
basedmb_zerodm = job.basefilenm+"_zerodm_DM"
basedme = ".singlepulse "
# The following will make plots for DM ranges:
# 0-110, 100-310, 300-1000+
dmglobs = [basedmb+"[0-9].[0-9][0-9]"+basedme +
basedmb+"[0-9][0-9].[0-9][0-9]"+basedme +
basedmb+"10[0-9].[0-9][0-9]"+basedme,
basedmb+"[12][0-9][0-9].[0-9][0-9]"+basedme +
basedmb+"30[0-9].[0-9][0-9]"+basedme,
basedmb+"[3-9][0-9][0-9].[0-9][0-9]"+basedme +
basedmb+"1[0-9][0-9][0-9].[0-9][0-9]"+basedme]
dmrangestrs = ["0-110", "100-310", "300-1000+"]
psname = job.basefilenm+"_singlepulse.ps"
psname_zerodm = job.basefilenm+"_zerodm_singlepulse.ps"
if config.searching.use_zerodm_sp:
dmglobs.extend([basedmb_zerodm+"[0-9].[0-9][0-9]"+basedme +
basedmb_zerodm+"[0-9][0-9].[0-9][0-9]"+basedme +
basedmb_zerodm+"10[0-9].[0-9][0-9]"+basedme,
basedmb_zerodm+"[12][0-9][0-9].[0-9][0-9]"+basedme +
basedmb_zerodm+"30[0-9].[0-9][0-9]"+basedme,
basedmb_zerodm+"[3-9][0-9][0-9].[0-9][0-9]"+basedme +
basedmb_zerodm+"1[0-9][0-9][0-9].[0-9][0-9]"+basedme])
dmrangestrs.extend(["0-110_zerodm", "100-310_zerodm", "300-1000+_zerodm"])
for dmglob, dmrangestr in zip(dmglobs, dmrangestrs):
dmfiles = []
for dmg in dmglob.split():
dmfiles += glob.glob(dmg.strip())
# Check that there are matching files and they are not all empty
if dmfiles and sum([os.path.getsize(f) for f in dmfiles]):
cmd = 'single_pulse_search.py -t %f -g "%s"' % \
(config.searching.singlepulse_plot_SNR, dmglob)
job.singlepulse_time += timed_execute(cmd)
if dmrangestr.endswith("zerodm"):
os.rename(psname_zerodm,
job.basefilenm+"_DMs%s_singlepulse.ps" % dmrangestr)
else:
os.rename(psname,
job.basefilenm+"_DMs%s_singlepulse.ps" % dmrangestr)
# Sift through the candidates to choose the best to fold
job.sifting_time = time.time()
lo_accel_cands = sifting.read_candidates(glob.glob("*ACCEL_%d" % config.searching.lo_accel_zmax))
if len(lo_accel_cands):
lo_accel_cands = sifting.remove_duplicate_candidates(lo_accel_cands)
if len(lo_accel_cands):
lo_accel_cands = sifting.remove_DM_problems(lo_accel_cands, config.searching.numhits_to_fold,
dmstrs, config.searching.low_DM_cutoff)
hi_accel_cands = sifting.read_candidates(glob.glob("*ACCEL_%d" % config.searching.hi_accel_zmax))
if len(hi_accel_cands):
hi_accel_cands = sifting.remove_duplicate_candidates(hi_accel_cands)
if len(hi_accel_cands):
hi_accel_cands = sifting.remove_DM_problems(hi_accel_cands, config.searching.numhits_to_fold,
dmstrs, config.searching.low_DM_cutoff)
all_accel_cands = lo_accel_cands + hi_accel_cands
if len(all_accel_cands):
all_accel_cands = sifting.remove_harmonics(all_accel_cands)
# Note: the candidates will be sorted in _sigma_ order, not _SNR_!
all_accel_cands.sort(sifting.cmp_sigma)
print "Sending candlist to stdout before writing to file"
sifting.write_candlist(all_accel_cands)
sys.stdout.flush()
sifting.write_candlist(all_accel_cands, job.basefilenm+".accelcands")
# Make sifting summary plots
all_accel_cands.plot_goodbad()
plt.title("%s Rejected Cands" % job.basefilenm)
plt.savefig(job.basefilenm+".accelcands.rejects.png")
all_accel_cands.plot_summary()
plt.title("%s Periodicity Summary" % job.basefilenm)
plt.savefig(job.basefilenm+".accelcands.summary.png")
# Write out sifting candidate summary
all_accel_cands.print_cand_summary(job.basefilenm+".accelcands.summary")
# Write out sifting comprehensive report of bad candidates
all_accel_cands.write_cand_report(job.basefilenm+".accelcands.report")
timed_execute("gzip --best %s" % job.basefilenm+".accelcands.report")
# Moving of results to resultsdir now happens in clean_up(...)
# shutil.copy(job.basefilenm+".accelcands", job.outputdir)
job.sifting_time = time.time() - job.sifting_time
#####
# Print some info useful for debugging
print "Contents of workdir (%s) before folding: " % job.workdir
for fn in os.listdir(job.workdir):
print " %s" % fn
print "Contents of resultsdir (%s) before folding: " % job.outputdir
for fn in os.listdir(job.outputdir):
print " %s" % fn
print "Contents of job.tempdir (%s) before folding: " % job.tempdir
for fn in os.listdir(job.tempdir):
print " %s" % fn
sys.stdout.flush()
#####
# Fold the best candidates
cands_folded = 0
for cand in all_accel_cands:
print "At cand %s" % str(cand)
if cands_folded == config.searching.max_cands_to_fold:
break
if cand.sigma >= config.searching.to_prepfold_sigma:
print "...folding"
job.folding_time += timed_execute(get_folding_command(cand, job))
cands_folded += 1
job.num_cands_folded = cands_folded
# Rate candidates
timed_execute("rate_pfds.py --redirect-warnings --include-all -x pulse_width *.pfd")
sys.stdout.flush()
# Calculate some candidate attributes from pfds
attrib_file = open('candidate_attributes.txt','w')
for pfdfn in glob.glob("*.pfd"):
attribs = {}
pfd = prepfold.pfd(pfdfn)
red_chi2 = pfd.bestprof.chi_sqr
dof = pfd.proflen - 1
attribs['prepfold_sigma'] = \
-scipy.stats.norm.ppf(scipy.stats.chi2.sf(red_chi2*dof, dof))
off_red_chi2 = pfd.estimate_offsignal_redchi2()
new_red_chi2 = red_chi2 / off_red_chi2
# prepfold sigma rescaled to deal with chi-squared suppression
# a problem when strong rfi is present
attribs['rescaled_prepfold_sigma'] = \
-scipy.stats.norm.ppf(scipy.stats.chi2.sf(new_red_chi2*dof, dof))
for key in attribs:
attrib_file.write("%s\t%s\t%.3f\n" % (pfdfn, key, attribs[key]))
attrib_file.close()
# Print some info useful for debugging
print "Contents of workdir (%s) after folding: " % job.workdir
for fn in os.listdir(job.workdir):
print " %s" % fn
print "Contents of resultsdir (%s) after folding: " % job.outputdir
for fn in os.listdir(job.outputdir):
print " %s" % fn
print "Contents of job.tempdir (%s) after folding: " % job.tempdir
for fn in os.listdir(job.tempdir):
print " %s" % fn
sys.stdout.flush()
#####
# Now step through the .ps files and convert them to .png and gzip them
psfiles = glob.glob("*.ps")
for psfile in psfiles:
# The '[0]' appeneded to the end of psfile is to convert only the 1st page
timed_execute("convert -quality 90 %s -background white -flatten -rotate 90 +matte %s" % \
(psfile+"[0]", psfile[:-3]+".png"))
timed_execute("gzip "+psfile)
# Print some info useful for debugging
print "Contents of workdir (%s) after conversion: " % job.workdir
for fn in os.listdir(job.workdir):
print " %s" % fn
print "Contents of resultsdir (%s) after conversion: " % job.outputdir
for fn in os.listdir(job.outputdir):
print " %s" % fn
print "Contents of job.tempdir (%s) after conversion: " % job.tempdir
for fn in os.listdir(job.tempdir):
print " %s" % fn
sys.stdout.flush()
