def test_qseis_vs_ahfull(self):
random.seed(23)
vp = 5.8 * km
vs = 3.46 * km
mod = cake.LayeredModel.from_scanlines(
cake.read_nd_model_str('''
0. %(vp)g %(vs)g 2.6 1264. 600.
20. %(vp)g %(vs)g 2.6 1264. 600.'''.lstrip() % dict(vp=vp / km, vs=vs / km)))
store_id_qseis = 'homogeneous_qseis'
store_id_ahfull = 'homogeneous_ahfull'
qsconf = qseis.QSeisConfig()
qsconf.qseis_version = '2006a'
textra = 5.0
qsconf.time_region = (gf.meta.Timing('{vel:%g}-%g' %
(vp / km, textra)),
gf.meta.Timing('{vel:%g}+%g' %
(vs / km, textra)))
qsconf.cut = (gf.meta.Timing('{vel:%g}-%g' % (vp / km, textra)),
gf.meta.Timing('{vel:%g}+%g' % (vs / km, textra)))
qsconf.relevel_with_fade_in = True
qsconf.fade = (gf.meta.Timing('{vel:%g}-%g' % (vp / km, textra)),
gf.meta.Timing('{vel:%g}-%g' % (vp / km, 0.)),
gf.meta.Timing('{vel:%g}+%g' % (vs / km, 0.)),
gf.meta.Timing('{vel:%g}+%g' % (vs / km, textra)))
qsconf.wavelet_duration_samples = 0.001
qsconf.sw_flat_earth_transform = 0
qsconf.filter_surface_effects = 1
qsconf.wavenumber_sampling = 5.
qsconf.aliasing_suppression_factor = 0.01
sample_rate = 10.
config = gf.meta.ConfigTypeA(
id=store_id_qseis,
sample_rate=sample_rate,
receiver_depth=0. * km,
source_depth_min=1. * km,
source_depth_max=19 * km,
source_depth_delta=6. * km,
distance_min=2. * km,
distance_max=20 * km,
distance_delta=2 * km,
modelling_code_id='qseis.2006a',
earthmodel_1d=mod,
tabulated_phases=[
gf.meta.TPDef(id='begin', definition='p,P,p\\,P\\'),
gf.meta.TPDef(id='end', definition='s,S,s\\,S\\'),
])
config.validate()
store_dir_qseis = mkdtemp(prefix=store_id_qseis)
self.tempdirs.append(store_dir_qseis)
gf.store.Store.create_editables(store_dir_qseis,
config=config,
extra={'qseis': qsconf})
store = gf.store.Store(store_dir_qseis, 'r')
store.make_ttt()
store.close()
try:
qseis.build(store_dir_qseis, nworkers=1)
except qseis.QSeisError as e:
if str(e).find('could not start qseis') != -1:
logger.warn('qseis not installed; '
'skipping test_pyrocko_gf_vs_qseis')
return
else:
raise
config = gf.meta.ConfigTypeA(
id=store_id_ahfull,
sample_rate=sample_rate,
receiver_depth=0. * km,
source_depth_min=1. * km,
source_depth_max=19 * km,
source_depth_delta=6. * km,
distance_min=2. * km,
distance_max=20 * km,
distance_delta=2 * km,
modelling_code_id='ahfullgreen',
earthmodel_1d=mod,
tabulated_phases=[
gf.meta.TPDef(id='begin', definition='p,P,p\\,P\\'),
gf.meta.TPDef(id='end', definition='s,S,s\\,S\\'),
])
config.validate()
store_dir_ahfull = mkdtemp(prefix=store_id_qseis)
self.tempdirs.append(store_dir_ahfull)
gf.store.Store.create_editables(store_dir_ahfull, config=config)
store = gf.store.Store(store_dir_ahfull, 'r')
store.make_ttt()
store.close()
ahfullgreen.build(store_dir_ahfull, nworkers=1)
sdepth = rand(config.source_depth_min, config.source_depth_max)
sdepth = round(
(sdepth - config.source_depth_min)
/ config.source_depth_delta) * config.source_depth_delta \
+ config.source_depth_min
source = gf.MTSource(lat=0., lon=0., depth=sdepth)
source.m6 = tuple(rand(-1., 1.) for x in range(6))
for ii in range(5):
azi = random.random() * 365.
dist = rand(config.distance_min, config.distance_max)
dist = round(dist / config.distance_delta) * config.distance_delta
dnorth = dist * math.cos(azi * d2r)
deast = dist * math.sin(azi * d2r)
targets = []
for cha in 'rtz':
target = gf.Target(quantity='displacement',
codes=('', '0000', 'PG', cha),
north_shift=dnorth,
east_shift=deast,
depth=config.receiver_depth,
store_id=store_id_ahfull)
dist = source.distance_to(target)
azi, bazi = source.azibazi_to(target)
if cha == 'r':
target.azimuth = bazi + 180.
target.dip = 0.
elif cha == 't':
target.azimuth = bazi - 90.
target.dip = 0.
elif cha == 'z':
target.azimuth = 0.
target.dip = 90.
targets.append(target)
runner = qseis.QSeisRunner()
conf = qseis.QSeisConfigFull()
conf.qseis_version = '2006a'
conf.receiver_distances = [dist / km]
conf.receiver_azimuths = [azi]
conf.receiver_depth = config.receiver_depth / km
conf.source_depth = source.depth / km
distance_3d_max = math.sqrt(config.distance_max**2 +
(config.source_depth_max -
config.source_depth_min)**2)
nsamples = trace.nextpow2(
int(
math.ceil(distance_3d_max / vs * 2.0 + 2. * textra) *
config.sample_rate))
conf.time_start = -textra
conf.time_window = (nsamples - 1) / config.sample_rate
conf.time_reduction_velocity = 0.0
conf.nsamples = nsamples
conf.source_mech = qseis.QSeisSourceMechMT(mnn=source.mnn,
mee=source.mee,
mdd=source.mdd,
mne=source.mne,
mnd=source.mnd,
med=source.med)
conf.earthmodel_1d = mod
conf.sw_flat_earth_transform = 0
conf.filter_surface_effects = 1
conf.wavenumber_sampling = 10.
conf.wavelet_duration_samples = 0.001
conf.aliasing_suppression_factor = 0.01
conf.validate()
runner.run(conf)
trs = runner.get_traces()
for tr in trs:
pass
tr.lowpass(4, config.sample_rate / 8., demean=False)
tr.highpass(4, config.sample_rate / 80.)
engine = gf.LocalEngine(
store_dirs=[store_dir_ahfull, store_dir_qseis])
trs2 = engine.process(source, targets).pyrocko_traces()
for tr in trs2:
tr.shift(config.deltat)
tr.lowpass(4, config.sample_rate / 8., demean=False)
tr.highpass(4, config.sample_rate / 80.)
# trace.snuffle(trs+trs2)
tmin = store.t('{vel:%g}' %
(vp / km), source, target) - textra * 0.2
tmax = store.t('{vel:%g}' %
(vs / km), source, target) + textra * 0.2
for tr in trs + trs2:
tr.chop(tmin, tmax)
denom = 0.0
for cha in 'rtz':
t1 = g(trs, cha)
t2 = g(trs2, cha)
denom += num.sum(t1.ydata**2) + num.sum(t2.ydata**2)
ds = []
for cha in 'rtz':
t1 = g(trs, cha)
t2 = g(trs2, cha)
ds.append(2.0 * num.sum((t1.ydata - t2.ydata)**2) / denom)
ds = num.array(ds)
# if not num.all(ds < 0.05):
# trace.snuffle(trs+trs2)
assert num.all(ds < 0.05)
def test_pyrocko_gf_vs_qseis(self):
random.seed(2017)
mod = cake.LayeredModel.from_scanlines(
cake.read_nd_model_str('''
0. 5.8 3.46 2.6 1264. 600.
20. 5.8 3.46 2.6 1264. 600.
20. 6.5 3.85 2.9 1283. 600.
35. 6.5 3.85 2.9 1283. 600.
mantle
35. 8.04 4.48 3.58 1449. 600.
77.5 8.045 4.49 3.5 1445. 600.
77.5 8.045 4.49 3.5 180.6 75.
120. 8.05 4.5 3.427 180. 75.
120. 8.05 4.5 3.427 182.6 76.06
165. 8.175 4.509 3.371 188.7 76.55
210. 8.301 4.518 3.324 201. 79.4
210. 8.3 4.52 3.321 336.9 133.3
410. 9.03 4.871 3.504 376.5 146.1
410. 9.36 5.08 3.929 414.1 162.7
660. 10.2 5.611 3.918 428.5 172.9
660. 10.79 5.965 4.229 1349. 549.6'''.lstrip()))
store_dir = mkdtemp(prefix='gfstore')
self.tempdirs.append(store_dir)
qsconf = qseis.QSeisConfig()
qsconf.qseis_version = '2006a'
qsconf.time_region = (gf.meta.Timing('0'), gf.meta.Timing('end+100'))
qsconf.cut = (gf.meta.Timing('0'), gf.meta.Timing('end+100'))
qsconf.wavelet_duration_samples = 0.001
qsconf.sw_flat_earth_transform = 0
config = gf.meta.ConfigTypeA(id='qseis_test',
sample_rate=0.25,
receiver_depth=0. * km,
source_depth_min=10 * km,
source_depth_max=10 * km,
source_depth_delta=1 * km,
distance_min=550 * km,
distance_max=560 * km,
distance_delta=1 * km,
modelling_code_id='qseis.2006a',
earthmodel_1d=mod,
tabulated_phases=[
gf.meta.TPDef(
id='begin',
definition='p,P,p\\,P\\'),
gf.meta.TPDef(id='end',
definition='2.5'),
])
config.validate()
gf.store.Store.create_editables(store_dir,
config=config,
extra={'qseis': qsconf})
store = gf.store.Store(store_dir, 'r')
store.make_ttt()
store.close()
try:
qseis.build(store_dir, nworkers=1)
except qseis.QSeisError as e:
if str(e).find('could not start qseis') != -1:
logger.warn('qseis not installed; '
'skipping test_pyrocko_gf_vs_qseis')
return
else:
raise
source = gf.MTSource(lat=0., lon=0., depth=10. * km)
source.m6 = tuple(random.random() * 2. - 1. for x in range(6))
azi = random.random() * 365.
dist = 553. * km
dnorth = dist * math.cos(azi * d2r)
deast = dist * math.sin(azi * d2r)
targets = []
for cha in 'rtz':
target = gf.Target(quantity='displacement',
codes=('', '0000', 'PG', cha),
north_shift=dnorth,
east_shift=deast,
depth=config.receiver_depth,
store_id='qseis_test')
dist = source.distance_to(target)
azi, bazi = source.azibazi_to(target)
if cha == 'r':
target.azimuth = bazi + 180.
target.dip = 0.
elif cha == 't':
target.azimuth = bazi - 90.
target.dip = 0.
elif cha == 'z':
target.azimuth = 0.
target.dip = 90.
targets.append(target)
runner = qseis.QSeisRunner()
conf = qseis.QSeisConfigFull()
conf.qseis_version = '2006a'
conf.receiver_distances = [dist / km]
conf.receiver_azimuths = [azi]
conf.source_depth = source.depth / km
conf.time_start = 0.0
conf.time_window = 508.
conf.time_reduction_velocity = 0.0
conf.nsamples = 128
conf.source_mech = qseis.QSeisSourceMechMT(mnn=source.mnn,
mee=source.mee,
mdd=source.mdd,
mne=source.mne,
mnd=source.mnd,
med=source.med)
conf.earthmodel_1d = mod
conf.sw_flat_earth_transform = 0
runner.run(conf)
trs = runner.get_traces()
for tr in trs:
tr.shift(-config.deltat)
tr.snap(interpolate=True)
tr.lowpass(4, 0.05)
tr.highpass(4, 0.01)
engine = gf.LocalEngine(store_dirs=[store_dir])
def process_wrap(nthreads=0):
@benchmark.labeled('pyrocko.gf.process (nthreads-%d)' % nthreads)
def process(nthreads):
return engine.process(source, targets, nthreads=nthreads)\
.pyrocko_traces()
return process(nthreads)
for nthreads in range(1, cpu_count() + 1):
trs2 = process_wrap(nthreads)
# print benchmark
for tr in trs2:
tr.snap(interpolate=True)
tr.lowpass(4, 0.05)
tr.highpass(4, 0.01)
# trace.snuffle(trs+trs2)
for cha in 'rtz':
t1 = g(trs, cha)
t2 = g(trs2, cha)
tmin = max(t1.tmin, t2.tmin)
tmax = min(t1.tmax, t2.tmax)
t1.chop(tmin, tmax)
t2.chop(tmin, tmax)
d = 2.0 * num.sum((t1.ydata - t2.ydata)**2) / \
(num.sum(t1.ydata**2) + num.sum(t2.ydata**2))
assert d < 0.05
azi, bazi = source.azibazi_to(target)
if cha == 'r':
target.azimuth = bazi + 180.
target.dip = 0.
elif cha == 't':
target.azimuth = bazi - 90.
target.dip = 0.
elif cha == 'z':
target.azimuth = 0.
target.dip = 90.
targets.append(target)
runner = qseis.QSeisRunner()
conf = qseis.QSeisConfigFull()
conf.qseis_version = '2006a'
conf.receiver_distances = [dist / km]
conf.receiver_azimuths = [azi]
conf.receiver_depth = config.receiver_depth / km
conf.source_depth = source.depth / km
distance_3d_max = math.sqrt(config.distance_max**2 +
(config.source_depth_max -
config.source_depth_min)**2)
nsamples = trace.nextpow2(
int(
math.ceil(distance_3d_max / vs * 2.0 + 2. * textra) *
config.sample_rate))