def report_perf(self, optimizer, X, y, title, callbacks=None):
"""
optimizer = a sklearn or a skopt optimizer
X = the training set
y = our target
title = a string label for the experiment
"""
start = time.time()
start_cpu = time.process_time()
if callbacks:
mprint(f'start tuning {title}...')
optimizer.fit(X, y, callback=callbacks)
else:
mprint(f'start tuning {title}...')
optimizer.fit(X, y)
time_cost_CPU = time.process_time() - start_cpu
time_cost = time.time() - start
result = {}
result['best_score'] = optimizer.best_score_
result['best_score_std'] = optimizer.get_cv_results_(
)['std_test_score'][optimizer.best_index_]
result['best_parmas'] = optimizer.best_params_["model"]
result['params'] = optimizer.get_cv_results_()['params']
result['CPU_Time'] = round(time_cost_CPU, 0)
result['Time_cost'] = round(time_cost, 0)
result['all_cv_results'] = optimizer.get_cv_results_(
)['mean_test_score'][:]
result['CV'] = optimizer.get_cv_results_()
print("")
time_cost_CPU = round(result['CPU_Time'], 0)
time_cost = round(result['Time_cost'], 0)
cand = len(result['all_cv_results'])
best_cv = round(result['best_score'], 8)
best_cv_sd = round(result['best_score_std'], 4)
print(
f'took CPU Time: {time_cost_CPU}s,clock time: {time_cost}s, candidates checked:{cand} ,best CV score: {best_cv} \u00B1 {best_cv_sd}'
)
print("")
return result
NORTH = 0
SOUTH = 1
EAST = 2
WEST = 3
if __name__ == "__main__":
comm = MPI.COMM_WORLD
mpi_rows = int(np.floor(np.sqrt(comm.size)))
mpi_cols = comm.size // mpi_rows
if mpi_rows * mpi_cols > comm.size:
mpi_cols -= 1
if mpi_rows * mpi_cols > comm.size:
mpi_rows -= 1
mprint("=" * 78)
mprint("Running %d parallel processes (ranks)" % (comm.size))
mprint("Creating a %d x %d processor grid..." % (mpi_rows, mpi_cols))
# Create a 2d cartesian grid with periodic boundary conditions
ccomm = comm.Create_cart((mpi_rows, mpi_cols),
periods=(True, True),
reorder=True)
my_mpi_row, my_mpi_col = ccomm.Get_coords(ccomm.rank)
# Identifiy our neighbours on the grid
neigh = [0, 0, 0, 0]
neigh[NORTH], neigh[SOUTH] = ccomm.Shift(0, 1)
neigh[EAST], neigh[WEST] = ccomm.Shift(1, 1)
def optimise_step(self,
df_train,
df_target,
npoints=1,
nrandom=1,
n_iter=50,
set_callbacks=True):
"""Evaluates the data.
Build the pipeline. If no parameters are set, default configuration for
each step is used
Parameters
----------
space : dict, default = None.
df_train : pandas dataframe of shape = (n_train, n_features)
The train dataset with numerical features.
y_train : pandas series of shape = (n_train,)
The numerical encoded target for classification tasks.
max_evals : int, default = 20, max evaluation times
set_callbacks (opt): bool,default: True
If callable then callback(res) is called after each call to func. If list of callables, then each callable in the list is called.
----------
Returns
---------
result : dict
- result['best_score'] : Best Score after Tuning
- result['best_score_std'] : Standar Divation of best score
- result['best_parmas'] : Best parameters
- result['params'] : all paramsters (# = checked candicated)
- result['time_cost(s)'] : total time of finding out the best parameters
- result['all_cv_results'] : all cv results
- result['mean_score_time'] : time for each cv result
"""
# checke parallel strategy
ce = Categorical_encoder()
X = ce.fit_transform(df_train, df_target)
if len(df_train.dtypes[df_train.dtypes == 'float'].index) != 0:
scal = Scaler()
X = scal.fit_transform(X, df_target)
self.perform_scaling is True
else:
pass
mid_result = {}
tuning_result = {}
if len(pd.DataFrame(X).columns) > 20:
search_space_LGB = Classifier(
strategy="LightGBM").get_search_spaces(
need_feature_selection=True)
search_space_SVC = Classifier(strategy="SVC").get_search_spaces(
need_feature_selection=True)
search_spaces = [search_space_SVC, search_space_LGB]
else:
search_space_LGB = Classifier(
strategy="LightGBM").get_search_spaces(
need_feature_selection=False)
search_space_SVC = Classifier(strategy="SVC").get_search_spaces(
need_feature_selection=False)
search_spaces = [search_space_SVC, search_space_LGB]
# Initialize a pipeline
fs = None
for i in range(len(search_spaces)):
if isinstance(search_spaces, tuple):
for p in search_spaces[i][0].keys():
if (p.startswith("fs__")):
fs = feature_selector()
else:
print(
">> Number of Features < 20, ignore feature selection"
)
pass
else:
for p in search_spaces[i].keys():
if (p.startswith("fs__")):
fs = feature_selector()
else:
pass
# Do we need to cache transformers?
cache = False
if (fs is not None):
if ("fs__strategy" in search_spaces):
if (search_spaces["fs__strategy"] != "variance"):
cache = True
else:
pass
else:
pass
mprint(f'Start turning Hyperparameters .... ')
print("")
print(">>> Categorical Features have encoded with :" +
str({'strategy': ce.strategy}))
print("")
if self.perform_scaling is True:
print(">>> Numerical Features have encoded with :" +
scal.__class__.__name__)
print("")
for baseestimator in self.baseEstimator:
# Pipeline creation
lgb = Classifier(strategy="LightGBM").get_estimator()
# rf = Classifier(strategy="RandomForest").get_estimator()
# svc = Classifier(strategy="SVC").get_estimator()
if (fs is not None):
if cache:
pipe = Pipeline([('fs', fs), ('model', lgb)],
memory=self.to_path)
else:
pipe = Pipeline([('fs', fs), ('model', lgb)])
else:
if cache:
pipe = Pipeline([('model', lgb)], memory=self.to_path)
else:
pipe = Pipeline([('model', lgb)])
if (self.parallel_strategy is True):
opt = BayesSearchCV(pipe,
search_spaces=search_spaces,
scoring=self.scoring,
cv=self.cv,
npoints=npoints,
n_jobs=-1,
n_iter=n_iter,
nrandom=nrandom,
return_train_score=False,
optimizer_kwargs={
'base_estimator': baseestimator,
"acq_func": "EI"
},
random_state=self.random_state,
verbose=self.verbose,
refit=self.refit)
else:
opt = BayesSearchCV(pipe,
search_spaces=search_spaces,
scoring=self.scoring,
cv=self.cv,
npoints=npoints,
n_jobs=1,
n_iter=n_iter,
nrandom=nrandom,
return_train_score=False,
optimizer_kwargs={
'base_estimator': baseestimator,
"acq_func": "EI"
},
random_state=self.random_state,
verbose=self.verbose,
refit=self.refit)
if not isinstance(baseestimator, GaussianProcessRegressor):
if set_callbacks is True:
mid_result = self.report_perf(
opt,
X,
df_target,
' with Surrogate Model:' + baseestimator,
callbacks=[
self.on_step,
DeadlineStopper(60 *
60) # ,DeltaYStopper(0.000001)
])
else:
mid_result = self.report_perf(
opt,
X,
df_target,
' with Surrogate Model: ' + baseestimator,
)
tuning_result[baseestimator] = mid_result
else:
if set_callbacks is True:
mid_result = self.report_perf(
opt,
X,
df_target,
' with Surrogate Model:' +
baseestimator.__class__.__name__,
callbacks=[
self.on_step,
DeadlineStopper(60 *
60) # ,DeltaYStopper(0.000001)
])
else:
mid_result = self.report_perf(
opt,
X,
df_target,
' with Surrogate Model: ' +
baseestimator.__class__.__name__,
)
tuning_result[baseestimator.__class__.__name__] = mid_result
bests = pd.DataFrame()
for key in tuning_result.keys():
if tuning_result[key]['best_score'] == max(
d['best_score'] for d in tuning_result.values()):
bests = bests.append(
{
'best_score': tuning_result[key]['best_score'],
'best_SM': key,
'time': tuning_result[key]['Time_cost']
},
ignore_index=True)
bests = bests.sort_values(
by=['time'], ascending=True).reset_index(drop=True)
best_base_estimator = bests['best_SM'][0]
best_param = tuning_result[best_base_estimator]['best_parmas']
print("")
print('######## Congratulations! Here is the Best Parameters: #######')
print('Best Score is:',
tuning_result[best_base_estimator]['best_score'])
try:
print('with Surrogate Model ' + best_base_estimator)
except:
print('with Surrogate Model ' +
best_base_estimator.__class__.__name__)
pprint.pprint(best_param)
self.best_param_ = best_param
return best_param, tuning_result
#!/usr/bin/env python
from __future__ import division
from time import time
from mpi4py import MPI
import numpy as np
from util import mprint, num_bytes
sizes = [2**n for n in range(1, 24)]
runs = 50
comm = MPI.COMM_WORLD
mprint("Benchmarking Reduce performance on %d parallel MPI processes..." %
comm.size)
mprint("%15s | %12s | %12s" % ("Size (bytes)", "Time (msec)", "Bandwidth"))
for s in sizes:
data = np.ones(s)
res = np.empty_like(data)
comm.Barrier()
t_min = np.inf
for i in range(runs):
t0 = time()
comm.Reduce([data, MPI.DOUBLE], [res, MPI.DOUBLE])
t = time() - t0
t_min = min(t, t_min)
comm.Barrier()
tf.global_variables_initializer().run()
#TODO Load net seems not work
origiter = saver.iter
train_batch_nums = len(trainset) // batch_size
test_batch_nums = len(testset) // batch_size
iters = origiter
if origiter > 0:
util.loadNet(saver.latest, model, sess)
if os.path.isfile('../wts/train/' + mission_path + 'popt.npz'):
util.loadAdam('../wts/train/' + mission_path + 'popt.npz', opt,
model.weights, sess)
util.mprint("Restored to iteration %d" % origiter)
test_image_paths = testset[:batch_size]
contour, contour_imgs, ori_imgs, sparse_colors = sess.run(
[d.precontour, d.imgs_color, imgs_pos, d.sparse_color],
feed_dict=d.dict(test_image_paths, gen_learning_rate_val,
dis_learning_rate_val, False))
np.save("../results/output.npy", contour_imgs)
np.save("../results/sparse.npy", sparse_colors)
np.save("../results/ori.npy", ori_imgs)
np.save("../results/contour.npy", contour[:, :, :, 0])
for i in range(5):
output_img = (255 * (1 + ori_imgs[i]) / 2).astype(int)
skimage.io.imsave(os.path.join(result_path, 'ori_' + str(i) + '.jpg'),
def fit(self, X, y_bin, n_iter=10, need_callback=True):
enc = encoder.Categorical_encoder()
X = enc.fit_transform(X, y_bin)
if len(X.dtypes[X.dtypes == 'float'].index) != 0:
scal = Scaler()
X = scal.fit_transform(X, y_bin)
else:
pass
np.random.seed(55)
s_lgb, f_lgb = 0, 0
s_svc, f_svc = 0, 0
p_lgb = np.random.beta(s_lgb + 1.0, f_lgb + 1.0)
p_svc = np.random.beta(s_svc + 1.0, f_svc + 1.0)
# Converting average precision score into a scorer suitable for model selection
avg_prec = make_scorer(roc_auc_score,
greater_is_better=True,
needs_proba=False)
rs = {}
adj_iter = int(n_iter / 10)
mprint("Running RandomSearchCV...")
while (adj_iter > 0):
start = time.time()
start_cpu = time.process_time()
if (p_lgb >= p_svc):
key = "LGBMClassifier"
else:
key = "SVC"
start = time.time()
start_cpu = time.process_time()
model = self.models[key]
params = self.params[key]
param_keys, param_vecs = zip(*params.items())
param_keys = list(param_keys)
param_vecs = list(param_vecs)
def objective(param_vec):
params = dict(zip(param_keys, param_vec))
model.set_params(**params)
score = cross_val_score(model,
X,
y_bin,
cv=5,
n_jobs=-1,
scoring=avg_prec)
self.score_std.append(np.std(score))
return -np.mean(score)
def on_step(gp_round):
scores = np.sort(gp_round.func_vals)
score = scores[0]
# print("best score: %s" % score)
if score == -1:
print('Interrupting!')
return True
if need_callback:
print('Running with Callback function....')
gp_round = dummy_minimize(
func=objective,
dimensions=list(param_vecs),
n_calls=10,
callback=[
on_step # , DeadlineStopper(60 * 10)
], # ,on_stepDeltaYStopper(0.000001)
random_state=self.random_state,
verbose=self.verbose)
else:
gp_round = dummy_minimize(func=objective,
dimensions=list(param_vecs),
n_calls=10,
random_state=self.random_state,
verbose=self.verbose)
rm_result = {}
results = []
score = []
p = []
for err, param_vec in zip(gp_round.func_vals, gp_round.x_iters):
params = dict(zip(param_keys, param_vec))
mparams = dict({"model": model.__class__.__name__}, **params)
score.append(-err)
p.append(mparams)
bes = np.argmax(score)
best_index = np.argmin(gp_round.func_vals)
rm_result['best_score'] = -gp_round.fun
rm_result['best_params'] = p[bes]
rm_result['params'] = params
rm_result['all_cv_results'] = -gp_round.func_vals
clock_time = time.time() - start
cpu_time = time.process_time() - start_cpu
rm_result['test_score_std'] = self.score_std
rm_result['best_score_std'] = round(self.score_std[best_index], 4)
rm_result['CPU_Time'] = round(cpu_time, 2)
rm_result['Time_cost'] = round(clock_time, 2)
cand = len(rm_result['all_cv_results'])
cpu = round(cpu_time)
clock = round(clock_time)
best_cv_sd = rm_result['best_score_std']
best_score = round(-gp_round.fun, 4)
adj_iter -= 1
rs[adj_iter] = rm_result
if rs[adj_iter]['best_score'] > np.mean(
[d['all_cv_results'] for d in rs.values()]):
if gp_round.x.__class__.__name__ == "SVC":
f_svc += 1
elif gp_round.x.__class__.__name__ == "LGBMClassifier":
f_lgb += 1
else:
if gp_round.x.__class__.__name__ == "SVC":
s_svc += 1
elif gp_round.x.__class__.__name__ == "LGBMClassifier":
s_lgb += 1
p_lgb = np.random.beta(s_lgb + 1.0, f_lgb + 1.0)
p_svc = np.random.beta(s_svc + 1.0, f_svc + 1.0)
self.cand += int(cand)
self.clock += clock
if self.final_best_score < best_score:
self.final_best_score = best_score
self.final_best_std = best_cv_sd
else:
self.final_best_score = self.final_best_score
self.final_best_std = self.final_best_std
print(
f'Finished, took CPU Time: {cpu}s,clock time: {self.clock}s, candidates checked:{self.cand} ,best CV score: {self.final_best_score} \u00B1 {self.final_best_std}'
)
print("")
bests = pd.DataFrame()
for key in rs.keys():
if rs[key]['best_score'] == max(d["best_score"]
for d in rs.values()):
bests = bests.append(
{
'best_score': rs[key]['best_score'],
'best_param': rs[key]['best_params'],
"ind": key,
'time': rs[key]['Time_cost']
},
ignore_index=True)
bests = bests.sort_values(
by=['time'], ascending=True).reset_index(drop=True)
best_param = rs[key]['best_params']
score = rs[key]['best_score']
print("")
print('######## Congratulations! Here is the Best Parameters: #######')
print('Best Score is:', score)
print('Best Model is:')
pprint.pprint(best_param)
# rs["Time_cost"] = self.clock
return rs
(options, args) = parser.parse_args()
# Parse dtype argument
if options.dtype == "float32":
dtype_str = "np.float32"
dtype = np.float32
elif options.dtype == "float64":
dtype_str = "np.float64"
dtype = np.float64
else:
print("[FATAL] Unknown type %s" % options.dtype)
benches = options.benches.split(",")
comm = MPI.COMM_WORLD
mprint()
mprint("Running %d parallel MPI processes: Results display collective performance" % comm.size)
mprint()
# Calculate sizes
nbytes = options.nbytes * 1024 * 1024
size = nbytes // np.dtype(dtype).itemsize
if 'O1' in benches:
linear_benchcodes = (
("x = 1 * a" , 1 , 2 ),
("x = a * a" , 1 , 3 ),
("x = a * b" , 1 , 3 ),
("x = a * b * c" , 2 , 6 ),
("x = a[::2] * b[::2]" , 0.5, 1.5),
("x = np.exp(a)" , 1 , 2 ),
#!/usr/bin/env python
from __future__ import division
from time import time
from mpi4py import MPI
import numpy as np
from util import mprint, num_bytes
sizes = [2**n for n in range(1, 24)]
runs = 20
comm = MPI.COMM_WORLD
mprint("Benchmarking braodcast performance on %d parallel MPI processes..." %
comm.size)
mprint("%15s | %12s | %12s" %
("Size (bytes)", "Time (msec)", "Bandwidth (MiBytes/s)"))
for s in sizes:
data = np.ones(s)
comm.Barrier()
t0 = time()
for i in range(runs):
comm.Bcast([data, MPI.DOUBLE], 0)
comm.Barrier()
t = (time() - t0) / runs
mprint("%15d | %12.3f | %12.3f" %
(data.nbytes, t * 1000, data.nbytes / t / 1024 / 1024))
rs = np.random.RandomState(0)
loss_D_val = 0.
loss_G_val = 0.
train_batch_nums = len(trainset) // batch_size
test_batch_nums = len(testset) // batch_size
iters = origiter
if origiter > 0:
util.loadNet(saver.latest, model, sess)
if os.path.isfile('../wts/train/' + mission_path + 'popt.npz'):
util.loadAdam('../wts/train/' + mission_path + 'popt.npz', opt,
model.weights, sess)
for k in range((origiter + train_batch_nums - 1) // train_batch_nums):
idx = rs.permutation(len(trainset))
util.mprint("Restored to iteration %d" % origiter)
# show display categories
show_train_nms = ['Loss_G']
show_test_nms = ['Loss_G_V']
if args.pre == 1:
show_train_nms = ['Loss_Recon', 'Loss_G', 'Loss_D', 'Loss_adv_G']
show_test_nms = ['Loss_Recon_V', 'Loss_G_V', 'Loss_D_V', 'Loss_adv_G_V']
print("trainset length: %d" % len(trainset))
while iters <= MAXITER:
#TODO dont loop on epoch
if iters % train_batch_nums == 0:
#!/usr/bin/env python
from __future__ import division
import numpy as np
from mpi4py import MPI
from util import mprint, num_bytes
#=============================================================================
# Main
comm = MPI.COMM_WORLD
mprint("-" * 78)
mprint(" Running %d parallel processes..." % comm.size)
mprint("-" * 78)
my_N = 10 + comm.rank
my_a = comm.rank * np.ones(my_N)
N = comm.allreduce(my_N)
a = comm.gather(my_a)
mprint("Gathered array: %s" % a)
