TF estimator gradient boosted classifier suddenly stopped while training - tensorflow

Question

I have trained gradient boosted classifier with TF exampled code
https://www.tensorflow.org/tutorials/estimators/boosted_trees_model_understanding
but,
TF estimator gradient boosted classifier suddenly stopped while training
I think it takes several steps at begging , than suddenly stopped without any exception print
how can i get any reason why python crash
it 's hard to get the reason why it stopped
res:
lib : TF-gpu 1.13.1
cuda : 10.0
cudnn : 7.5
logs :
2019-04-15 16:40:26.175889: I
tensorflow/core/common_runtime/gpu/gpu_device.cc:1433] Found device 0
with properties: name: GeForce GTX 1060 6GB major: 6 minor: 1
memoryClockRate(GHz): 1.7845 pciBusID: 0000:07:00.0 totalMemory:
6.00GiB freeMemory: 4.97GiB 2019-04-15 16:40:26.182620: I tensorflow/core/common_runtime/gpu/gpu_device.cc:1512] Adding visible
gpu devices: 0 2019-04-15 16:40:26.832040: I
tensorflow/core/common_runtime/gpu/gpu_device.cc:984] Device
interconnect StreamExecutor with strength 1 edge matrix: 2019-04-15
16:40:26.835620: I
tensorflow/core/common_runtime/gpu/gpu_device.cc:990] 0
2019-04-15 16:40:26.836840: I
tensorflow/core/common_runtime/gpu/gpu_device.cc:1003] 0: N
2019-04-15 16:40:26.838276: I
tensorflow/core/common_runtime/gpu/gpu_device.cc:1115] Created
TensorFlow device (/job:localhost/replica:0/task:0/device:GPU:0 with
4716 MB memory) -> physical GPU (device: 0, name: GeForce GTX 1060
6GB, pci bus id: 0000:07:00.0, compute capability: 6.1)
WARNING:tensorflow:From
D:\python\lib\site-packages\tensorflow\python\training\saver.py:1266:
checkpoint_exists (from
tensorflow.python.training.checkpoint_management) is deprecated and
will be removed in a future version. Instructions for updating: Use
standard file APIs to check for files with this prefix.
WARNING:tensorflow:From
D:\python\lib\site-packages\tensorflow\python\training\saver.py:1070:
get_checkpoint_mtimes (from
tensorflow.python.training.checkpoint_management) is deprecated and
will be removed in a future version. Instructions for updating: Use
standard file utilities to get mtimes. WARNING:tensorflow:Issue
encountered when serializing resources. Type is unsupported, or the
types of the items don't match field type in CollectionDef. Note this
is a warning and probably safe to ignore. '_Resource' object has no
attribute 'name' WARNING:tensorflow:Issue encountered when serializing
resources. Type is unsupported, or the types of the items don't match
field type in CollectionDef. Note this is a warning and probably safe
to ignore. '_Resource' object has no attribute 'name'
D:\py> (just finished on training)
trn = pd.read_csv('data/santander-customer-transaction-prediction/train.csv')
tst = pd.read_csv('data/santander-customer-transaction-prediction/test.csv')
#trn = upsample(trn[trn.target==0], trn[trn.target==1])
# trn = downsample(trn[trn.target==0], trn[trn.target==1])
features = trn.columns.values[2:202]
target_name = trn.columns.values[1]
train=trn[features]
target=trn[target_name]
NUM_EXAMPLES = len (target)
print (NUM_EXAMPLES)
feat1 = train.corrwith(target).sort_values().head(20).index
feat2 = train.corrwith(target).sort_values().tail(20).index
featonly = feat1.append(feat2)
feat = featonly.append(pd.Index(['target']))
train_origin, tt = train_test_split(trn, test_size=0.2)
train = train_origin[featonly]
target = train_origin[target_name]
test = tst[featonly]
target_name_tst = tst.columns.values[1]
target_tst=tst[target_name_tst]
val_origin=tt
val_train = tt[featonly]
val_target = tt[target_name]
# Training and evaluation input functions.
train_input_fn = make_input_fn(train, target)
val_input_fn = make_input_fn(val_train, val_target)
ttt=tf.estimator.inputs.pandas_input_fn(x=test,num_epochs=1,shuffle=False)
del train,target,val_train,train_origin,trn,tst
fc = tf.feature_column
feature_columns = []
for feature_name in featonly:
feature_columns.append(fc.numeric_column(feature_name,dtype=tf.float32))
#feature_columns
#5
#tf.logging.set_verbosity(tf.logging.INFO)
#logging_hook = tf.train.LoggingTensorHook({"loss" : loss, "accuracy" : accuracy}, every_n_iter=10)
params = {
'n_trees': 50,
'max_depth': 3,
'n_batches_per_layer': 1,
# You must enable center_bias = True to get DFCs. This will force the model to
# make an initial prediction before using any features (e.g. use the mean of
# the training labels for regression or log odds for classification when
# using cross entropy loss).
'center_bias': True
}
# config = tf.estimator.RunConfig().replace(keep_checkpoint_max = 1,
# log_step_count_steps=20, save_checkpoints_steps=20)
est = tf.estimator.BoostedTreesClassifier(feature_columns, **params,model_dir='d:\py/model/')
est.train(train_input_fn, max_steps=50)
-------------------------------------------stopped
metrics = est.evaluate(input_fn=val_input_fn,steps=1)
results = est.predict(input_fn=ttt )
result_list = list(results)
classi = list(map(lambda x : x['classes'][0].decode("utf-8"), result_list))
num = list(range(0,len(classi)))
numi = list(map(lambda x : 'test_' + str(x),num))
#df1 = pd.DataFrame(columns=('ID_code','target'))
df_result = pd.DataFrame({'ID_code' : numi, 'target' : classi})
df_result.to_csv('result/submission03.csv',index=False)
def make_input_fn(X, y, n_epochs=None, shuffle=True):
def input_fn():
NUM_EXAMPLES = len(y)
dataset = tf.data.Dataset.from_tensor_slices((dict(X), y))
# dataset = tf.data.Dataset.from_tensor_slices((X.to_dict(orient='list'), y))
#if shuffle:
# dataset = dataset.shuffle(NUM_EXAMPLES)
# For training, cycle thru dataset as many times as need (n_epochs=None).
dataset = (dataset.repeat(n_epochs).batch(NUM_EXAMPLES))
return dataset
return input_fn
evaluation result should be shown

Answer 1

I think the problem is caused by GPU memory overflow.
You can try to modify the value of 'n_batches_per_layer' to some bigger value according to you GPU memory size.
I worked with a 6G GPU, the value is 16.