def save(self, prefix):
"""
Saves the parameters and constants down to json files as maps from {uuid : value},
where value is an mx.ndarray for parameters and either primitive number types or mx.ndarray for constants.
Saves up to 3 files: prefix+["_params.json", "_variable_constants.json", "_mxnet_constants.json"]
:param prefix: The directory and any appending tag for the files to save this Inference as.
:type prefix: str , ex. "../saved_inferences/experiment_1"
"""
param_file = prefix + "_params.json"
variable_constants_file = prefix + "_variable_constants.json"
mxnet_constants_file = prefix + "_mxnet_constants.json"
to_save = {key: value._reduce() for key, value in self._params.items()}
ndarray.save(param_file, to_save)
mxnet_constants = {
uuid: value
for uuid, value in self._constants.items()
if isinstance(value, mx.ndarray.ndarray.NDArray)
}
ndarray.save(mxnet_constants_file, mxnet_constants)
variable_constants = {
uuid: value
for uuid, value in self._constants.items()
if uuid not in mxnet_constants
}
import json
with open(variable_constants_file, 'w') as f:
json.dump(variable_constants, f, ensure_ascii=False)
def export_dense_mx(ckpt_dir, arg_list, aux_list, output_dir):
ckpt = get_latest_ckpt_v2(ckpt_dir)
print 'export dense mx from %s' % ckpt
manager = multiprocessing.Manager()
save_dict = manager.dict()
print '# export arg:', arg_list
p_list = []
for n in xrange(len(arg_list)):
p = multiprocessing.Process(target=_update_save_dict_run,
args=(n, ckpt, arg_list, save_dict, 'mx',
'var'))
p_list.append(p)
p.start()
print '# export aux:', aux_list
for n in xrange(len(aux_list)):
p = multiprocessing.Process(target=_update_save_dict_run,
args=(n, ckpt, aux_list, save_dict, 'mx',
'aux'))
p_list.append(p)
p.start()
for p in p_list:
p.join()
save_dict = dict(save_dict)
from mxnet import ndarray
ndarray.save('dense.txt', save_dict)
output(output_dir, 'dense.txt')
return save_dict
def save_params(dir_path=os.curdir, epoch=None, name="", params=None, aux_states=None,
ctx=mx.cpu()):
prefix = os.path.join(dir_path, name)
_, param_saving_path, _ = get_saving_path(prefix, epoch)
if not os.path.isdir(dir_path) and not (dir_path == ""):
os.makedirs(dir_path)
save_dict = {('arg:%s' % k): v.copyto(ctx) for k, v in params.items()}
save_dict.update({('aux:%s' % k): v.copyto(ctx) for k, v in aux_states.items()})
nd.save(param_saving_path, save_dict)
return param_saving_path
def save_params(dir_path=os.curdir, epoch=None, name="", params=None, aux_states=None,
ctx=mx.cpu()):
prefix = os.path.join(dir_path, name)
_, param_saving_path, _ = get_saving_path(prefix, epoch)
if not os.path.isdir(dir_path) and not (dir_path == ""):
os.makedirs(dir_path)
save_dict = {('arg:%s' % k): v.copyto(ctx) for k, v in params.items()}
save_dict.update({('aux:%s' % k): v.copyto(ctx) for k, v in aux_states.items()})
nd.save(param_saving_path, save_dict)
return param_saving_path
def out_concat_data_label(
data_iter,
senet,
dpn,
out_path,
dpn_r_mean=124,
dpn_g_mean=117,
dpn_b_mean=104,
dpn_scale=0.0167,
se_r_mean=0,
se_g_mean=0,
se_b_mean=0,
se_scale=1,
):
data_list = []
label_list = []
i = 0
print('start forward!!')
while True:
if i % 100 == 0:
print('reach ', i, ' image')
i = i + 1
try:
se_batch = data_iter.next()
dpn_batch = se_batch
# normalize
dpn_batch.data[0][0:, 0, :, :] -= dpn_r_mean
dpn_batch.data[0][0:, 1, :, :] -= dpn_g_mean
dpn_batch.data[0][0:, 2, :, :] -= dpn_b_mean
dpn_batch.data[0][:, :, :, :] *= dpn_scale
se_batch.data[0][0:, 0, :, :] -= se_r_mean
se_batch.data[0][0:, 1, :, :] -= se_g_mean
se_batch.data[0][0:, 2, :, :] -= se_b_mean
se_batch.data[0][:, :, :, :] *= se_scale
# forward
senet.forward(se_batch)
senet_out = senet.get_outputs()[0]
dpn.forward(dpn_batch)
dpn_out = dpn.get_outputs()[0]
feature = nd.concat(*[senet_out, dpn_out])
data_list.append(feature.asnumpy())
label_temp = se_batch.label[0].asscalar()
if label_temp == dpn_batch.label[0].asscalar():
label_list.append(label_temp)
else:
print('label conflict!')
break
except StopIteration:
print('stop')
break
# record
out_dict = {'data': nd.array(data_list), 'label': nd.array(label_list)}
nd.save(out_path, out_dict)
def push(data, url, is_lambda=True):
fname = url.split('/')[-1]
fname = fname.split('.')[0]
if is_lambda:
fpath = '/tmp/%s' % fname
else:
fpath = './%s' % fname
nd.save(fpath, data)
s3 = boto3.resource('s3')
s3.meta.client.upload_file(fpath, 'ps-lambda-mxnet', fname)
def test_load_ndarray():
nd_file = 'test_predictor_load_ndarray.params'
a = nd.random.uniform(shape=(7, 3))
b = nd.random.uniform(shape=(7,))
nd_data = {'a':a, 'b':b}
nd.save(nd_file, nd_data)
# test load_ndarray_file
nd_load = load_ndarray_file(open(nd_file, "rb").read())
assert(set(nd_data.keys()) == set(nd_load.keys()))
for k in nd_data.keys():
assert_almost_equal(nd_data[k].asnumpy(), nd_load[k], rtol=1e-5, atol=1e-6)
def save_model(net, path, sym=None, arg_dict=None):
if not net._cached_graph:
raise RuntimeError(
"Please first call block.hybridize() and then run forward with "
"this block at least once before calling export.")
if sym is None:
sym = net._cached_graph[1]
sym.save('%s.json' % path)
if arg_dict is None:
arg_dict = reduce_params(net, sym)
ndarray.save('%s.params' % path, arg_dict)
def save_parameters(self, filename):
"""Save model
Parameters
----------
filename : str
path to model file
"""
params = self._collect_params_with_prefix()
if self.pret_word_embs: # don't save word embeddings inside model
params.pop('pret_word_embs.weight', None)
arg_dict = {key: val._reduce() for key, val in params.items()}
ndarray.save(filename, arg_dict)
def save_parameters(self, filename):
"""Save model
Parameters
----------
filename : str
path to model file
"""
params = self._collect_params_with_prefix()
if self.pret_word_embs: # don't save word embeddings inside model
params.pop('pret_word_embs.weight', None)
arg_dict = {key: val._reduce() for key, val in params.items()}
ndarray.save(filename, arg_dict)
def gen_noise(self):
# if ctx == mx.gpu():
# noise, _ = TimeseriesFromPSD_nd(self.param_noise)
# elif ctx == mx.cpu():
# noise, _ = TimeseriesFromPSD(self.param_noise)
# noise = nd.array(noise)
if ctx == mx.gpu():
noise = GenNoise_matlab_nd(shape = (self.noiseAll_size, self.train.shape[-1]), params = self.pp)
# print('Random noise!!')
nd.save('./noise',noise[:10])
else:
raise
return noise
def calculate_norm(x, y):
assert x.shape == y.shape
ndims = np.product(x.shape)
x = nd.reshape(x, shape=(ndims, ))
y = nd.reshape(y, shape=(ndims, ))
res = x - y
nx = nd.norm(x)
ny = nd.norm(y)
nr = nd.norm(res)
print("saving...")
f = "/home/ryt/data/cmp_"
names = ["nx", "ny", "nr"]
objs = [nx, ny, nr]
for obj in objs:
print(type(obj), obj.shape)
for i in range(3):
nd.save(f + names[i], objs[i])
print('success')
def test_yxnet_mnist():
mnist_sym = make_mnist_graph()
inputs_ext = {
'data': {
'shape': (1, 1, 28, 28),
'precision': 8,
}
}
in_shape = (1, 1, 28, 28)
arg_shapes, _, aux_shapes = mnist_sym.infer_shape(data=in_shape)
args, auxs = mnist_sym.list_arguments(), mnist_sym.list_auxiliary_states()
infer_shapes = {args[i]: arg_shapes[i] for i in range(len(args))}
infer_shapes.update({auxs[i]: aux_shapes[i] for i in range(len(auxs))})
root = "/home/serving/warehouse"
_, bd = load_parameters(
mnist_sym, infer_shapes,
root + "/ca3d0286d5758697cdef653c1375960a868ac08a/data/params")
mnist_sym, bd = spass.mx_set_precs(mnist_sym, bd, inputs_ext)
dump_sym, dump_par = '/tmp/mnist_yxnet.symbol', '/tmp/mnist_yxnet.params'
with open(dump_sym, 'w') as fout:
fout.write(mnist_sym.tojson())
nd.save(dump_par, bd)
inputs = [mx.sym.var('data')]
data = np.load(root + '/ba9fedfc87ccb6064fcd437fd2287f5edef1bd84/data')
data = nd.array([data.astype(np.int8)])
if False:
graph = nn.SymbolBlock(mnist_sym, inputs)
utils.load_parameters(graph, bd)
res = graph.forward(data).astype('int32')
else:
prefix = "/tmp/yxnet/mnist"
dump_sym, dump_params = prefix + ".json", prefix + ".params"
print(sutils.sym_collect_attr(mnist_sym))
spass.mxnet_to_nnvm(mnist_sym, bd, {'data': {
'shape': (1, 1, 28, 28)
}}, dump_sym, dump_params)
exit()
print(res.asnumpy().flatten()[:100])
def save_params(filename, net, select=None):
"""
New in version 1.3.16
Notes
------
Q: Why not use the `save_parameters` in `mxnet.gluon`.
A: Because we want to use the `select` argument to only preserve those parameters we want
(i.e., excluding those unnecessary parameters such as pretrained embedding).
"""
params = net._collect_params_with_prefix()
if select is not None:
pattern = re.compile(select)
params = {
name: value
for name, value in params.items() if pattern.match(name)
}
arg_dict = {key: val._reduce() for key, val in params.items()}
nd.save(filename, arg_dict)
return filename
def _save_checkpoint(self):
if self.checkpoint_name is None:
return
checkpoint = {
# 'update_rule': self.update_rule,
'lr_decay': nd.array([self.lr_decay]),
'lr_rate': nd.array([self.lr_rate]),
# 'optim_config': self.optim_config,
'batch_size': nd.array([self.batch_size]),
# 'num_train_samples': self.num_train_samples,
# 'num_val_samples': self.num_val_samples,
'train_shift_list': nd.array(self.train_shift_list),
'test_shift_list': nd.array(self.test_shift_list),
'num_epoch': nd.array([self.num_epoch]),
'epoch': nd.array([self.epoch]),
'loss_history': nd.array(self.loss_history),
'loss_v_history': nd.array(self.loss_v_history),
'moving_loss_history': nd.array(self.moving_loss_history),
'train_acc_history': nd.array(self.train_acc_history),
'test_acc_history': nd.array(self.test_acc_history),
}
file_address = self.save_checkpoints_address
# save the model modification
if self.epoch == 1:
os.system('mkdir -p %s' %file_address)
np.save(file_address+ '%s_structure_epoch.pkl' %(self.checkpoint_name) ,self.model.structure)
# save the best params
if self.findabest:
os.system('rm -rf '+file_address+'%s_best_params_epoch@*' %self.checkpoint_name)
nd.save(file_address+'%s_best_params_epoch@%s_%s.pkl' %(self.checkpoint_name, self.best_params_epoch, self.best_test_acc) , self.best_params)
self.findabest = 0
# save all the parsms during the training
# nd.save(file_address+'%s_params_epoch@%s.pkl' %(self.checkpoint_name, self.epoch), self.model.params)
# save the processing info. within the training
nd.save(file_address+'%s_info.pkl' %(self.checkpoint_name), checkpoint)
def save(params, filename, strip_prefix=''):
"""Save parameters to file.
Parameters
----------
filename : str
Path to parameter file.
strip_prefix : str, default ''
Strip prefix from parameter names before saving.
"""
arg_dict = {}
for param in params.values():
weight = param._reduce()
if not param.name.startswith(strip_prefix):
raise ValueError(
"Prefix '%s' is to be striped before saving, but Parameter's "
"name '%s' does not start with '%s'. "
"this may be due to your Block shares parameters from other "
"Blocks or you forgot to use 'with name_scope()' when creating "
"child blocks. For more info on naming, please see "
"http://mxnet.incubator.apache.org/tutorials/basic/naming.html"
% (strip_prefix, param.name, strip_prefix))
arg_dict[param.name[len(strip_prefix):]] = weight
nd.save(filename, arg_dict)
def test_mrt_quant(batch_size=1, iter_num=10, from_scratch=0):
logger = logging.getLogger("log.test.mrt.quantize")
flag = [False]*from_scratch + [True]*(4-from_scratch)
ctx = mx.gpu(4)
qctx = mx.gpu(3)
input_size = 416
input_shape = (batch_size, 3, input_size, input_size)
# define data iter function, get:
# get_iter_func
val_data = dataset.load_voc(batch_size, input_size)
val_data_iter = iter(val_data)
def data_iter_func():
data, label = next(val_data_iter)
return data, label
# split model, get:
# base, base_params, top, top_params, top_inputs_ext
base, base_params, top, top_params, top_inputs_ext = \
None, None, None, None, None
if flag[0]:
sym_file, param_file = load_fname("_darknet53_voc")
sym, params = mx.sym.load(sym_file), nd.load(param_file)
mrt = MRT(sym, params, input_shape)
keys = [
'yolov30_yolooutputv30_expand_dims0',
'yolov30_yolooutputv31_expand_dims0',
'yolov30_yolooutputv32_expand_dims0',
'yolov30_yolooutputv30_tile0',
'yolov30_yolooutputv31_tile0',
'yolov30_yolooutputv32_tile0',
'yolov30_yolooutputv30_broadcast_add1',
'yolov30_yolooutputv31_broadcast_add1',
'yolov30_yolooutputv32_broadcast_add1',
]
base, base_params, top, top_params, top_inputs_ext \
= split_model(mrt.csym, mrt.cprm, {'data': input_shape}, keys)
dump_sym, dump_params = load_fname("_darknet53_voc", "mrt.base")
open(dump_sym, "w").write(base.tojson())
nd.save(dump_params, base_params)
dump_sym, dump_params, dump_ext = \
load_fname("_darknet53_voc", "mrt.top", True)
open(dump_sym, "w").write(top.tojson())
nd.save(dump_params, top_params)
sim.save_ext(dump_ext, top_inputs_ext)
else:
dump_sym, dump_params = load_fname("_darknet53_voc", "mrt.base")
base, base_params = mx.sym.load(dump_sym), nd.load(dump_params)
dump_sym, dump_params, dump_ext = \
load_fname("_darknet53_voc", "mrt.top", True)
top, top_params = mx.sym.load(dump_sym), nd.load(dump_params)
(top_inputs_ext,) = sim.load_ext(dump_ext)
base_graph = mx.gluon.nn.SymbolBlock(base, [mx.sym.var('data')])
nbase_params = convert_params_dtype(base_params, src_dtypes="float64",
dest_dtype="float32")
utils.load_parameters(base_graph, nbase_params, ctx=ctx)
top_graph = mx.gluon.nn.SymbolBlock(top,
[mx.sym.var(n) for n in top_inputs_ext])
ntop_params = convert_params_dtype(top_params, src_dtypes="float64",
dest_dtype="float32")
utils.load_parameters(top_graph, ntop_params, ctx=ctx)
# calibrate split model, get:
# th_dict
th_dict = None
if flag[1]:
mrt = MRT(base, base_params, input_shape)
for i in range(1):
data, _ = data_iter_func()
mrt.set_data(data)
mrt.calibrate(ctx=ctx)
_, _, dump_ext = load_fname("_darknet53_voc", "mrt.dict", True)
th_dict = mrt.th_dict
sim.save_ext(dump_ext, th_dict)
else:
_, _, dump_ext = load_fname("_darknet53_voc", "mrt.dict", True)
(th_dict,) = sim.load_ext(dump_ext)
# quantize split model, get:
# qbase, qbase_params, qbase_inputs_ext, oscales, maps
qbase, qbase_params, qbase_inputs_ext, oscales, maps = \
None, None, None, None, None
if flag[2]:
mrt = MRT(base, base_params, input_shape)
mrt.set_th_dict(th_dict)
mrt.set_threshold('data', 2.64)
mrt.set_threshold('yolov30_yolooutputv30_expand_dims0', 1)
mrt.set_threshold('yolov30_yolooutputv31_expand_dims0', 1)
mrt.set_threshold('yolov30_yolooutputv32_expand_dims0', 1)
mrt.set_threshold('yolov30_yolooutputv30_tile0', 416)
mrt.set_threshold('yolov30_yolooutputv31_tile0', 416)
mrt.set_threshold('yolov30_yolooutputv32_tile0', 416)
mrt.set_output_prec(30)
qbase, qbase_params, qbase_inputs_ext = mrt.quantize()
oscales = mrt.get_output_scales()
maps = mrt.get_maps()
dump_sym, dump_params, dump_ext = load_fname("_darknet53_voc", "mrt.quantize", True)
open(dump_sym, "w").write(qbase.tojson())
nd.save(dump_params, qbase_params)
sim.save_ext(dump_ext, qbase_inputs_ext, oscales, maps)
else:
qb_sym, qb_params, qb_ext = load_fname("_darknet53_voc", "mrt.quantize", True)
qbase, qbase_params = mx.sym.load(qb_sym), nd.load(qb_params)
qbase_inputs_ext, oscales, maps = sim.load_ext(qb_ext)
# merge quantized split model, get:
# qsym, qparams, oscales2
qsym, qparams = None, None
if flag[3]:
def box_nms(node, params, graph):
name, op_name = node.attr('name'), node.attr('op_name')
childs, attr = sutils.sym_iter(node.get_children()), node.list_attr()
if op_name == '_contrib_box_nms':
valid_thresh = sutils.get_attr(attr, 'valid_thresh', 0)
attr['valid_thresh'] = int(valid_thresh * oscales[3])
node = sutils.get_mxnet_op(op_name)(*childs, **attr, name=name)
return node
qsym, qparams = merge_model(qbase, qbase_params,
top, top_params, maps, box_nms)
oscales2 = [oscales[1], oscales[0], oscales[2]]
sym_file, param_file, ext_file = \
load_fname("_darknet53_voc", "mrt.all.quantize", True)
open(sym_file, "w").write(qsym.tojson())
nd.save(param_file, qparams)
sim.save_ext(ext_file, qbase_inputs_ext, oscales2)
else:
dump_sym, dump_params, dump_ext = \
load_fname("_darknet53_voc", "mrt.all.quantize", True)
qsym, qparams = mx.sym.load(dump_sym), nd.load(dump_params)
_, oscales2 = sim.load_ext(dump_ext)
if False:
compile_to_cvm(qsym, qparams, "yolo_tfm",
datadir="/data/ryt", input_shape=(1, 3, 416, 416))
exit()
metric = dataset.load_voc_metric()
metric.reset()
def yolov3(data, label):
def net(data):
tmp = base_graph(data.as_in_context(ctx))
outs = top_graph(*tmp)
return outs
acc = validate_data(net, data, label, metric)
return "{:6.2%}".format(acc)
net2 = mx.gluon.nn.SymbolBlock(qsym,
[mx.sym.var(n) for n in qbase_inputs_ext])
utils.load_parameters(net2, qparams, ctx=qctx)
net2_metric = dataset.load_voc_metric()
net2_metric.reset()
def mrt_quantize(data, label):
def net(data):
data = sim.load_real_data(data, 'data', qbase_inputs_ext)
outs = net2(data.astype("float64").as_in_context(qctx))
outs = [o.as_in_context(ctx) / oscales2[i] \
for i, o in enumerate(outs)]
return outs
acc = validate_data(net, data, label, net2_metric)
return "{:6.2%}".format(acc)
utils.multi_validate(yolov3, data_iter_func,
mrt_quantize,
iter_num=iter_num, logger=logger)
# Save
for key, value in {
'params': params
# , 'loss_history': nd.array(loss_history)
# , 'loss_v_history': nd.array(loss_v_history)
# , 'moving_loss_history': nd.array(moving_loss_history)
# , 'test_accuracy_history': nd.array(test_accuracy_history)
# , 'train_accuracy_history': nd.array(train_accuracy_history)
}.items():
# if train_accuracy_history[-1] == 1 and test_accuracy_history[-1] >= max(test_accuracy_history_final):
# test_accuracy_history_final.append(test_accuracy_history[-1])
# nd.save('/output/info_%s/%s' %(str(SNR), key), value)
# nd.save('./output/info_%s/%s' %(str(SNR), key), value)
# else:
# pass
nd.save("./%s/%s_%s" % (address, key, index + 1), value)
print('best_params_epoch:', best_params_epoch)
params_ = nd.load('./SNR%s_PLB/params_%s' %
(int(snr * 10), best_params_epoch))
os.system('rm `ls ./%s/params_*|egrep -v ./%s/params_%s`' %
(address, address, best_params_epoch))
# floyd run --gpu \
# --data wctttty/datasets/gw_colored8192/2:GW_data \
# --data wctttty/datasets/ligonose9_9000_8192/7:ligo_localnoise_9_9000_8192_1 \
# --data wctttty/datasets/ligonose9_9000_8192/6:ligo_localnoise_9_9000_8192_2 \
# -m "PLB_oldversion" \
# "bash setup_floydhub.sh && python run_old_PLB.py"
def GRU(epoch = 100 , batch_size=100, save_period=100 , load_period=100 ,learning_rate= 0.1, ctx=mx.gpu(0)):
train_data , test_data = FashionMNIST(batch_size)
#network parameter
time_step = 28
num_inputs = 28
num_hidden = 200
num_outputs = 10
path = "weights/FashionMNIST_GRUweights-{}".format(load_period)
if os.path.exists(path):
print("loading weights")
[wxz, wxr, wxh, whz, whr, whh, bz, br, bh, why, by] = nd.load(path) # weights load
wxz = wxz.as_in_context(ctx)
wxr = wxr.as_in_context(ctx)
whz = whz.as_in_context(ctx)
whz = whz.as_in_context(ctx)
whr = whr.as_in_context(ctx)
whh = whh.as_in_context(ctx)
bz = bz.as_in_context(ctx)
br = br.as_in_context(ctx)
bh = bh.as_in_context(ctx)
why = why.as_in_context(ctx)
by = by.as_in_context(ctx)
params = [wxz , wxr , wxh , whz, whr, whh, bz, br, bh, why , by]
else:
print("initializing weights")
with ctx:
wxz = nd.random.normal(loc=0, scale=0.01, shape=(num_hidden, num_inputs))
wxr = nd.random.normal(loc=0, scale=0.01, shape=(num_hidden, num_inputs))
wxh = nd.random.normal(loc=0, scale=0.01, shape=(num_hidden, num_inputs))
whz = nd.random.normal(loc=0, scale=0.01, shape=(num_hidden, num_hidden))
whr = nd.random.normal(loc=0, scale=0.01, shape=(num_hidden, num_hidden))
whh = nd.random.normal(loc=0, scale=0.01, shape=(num_hidden, num_hidden))
bz = nd.random.normal(loc=0,scale=0.01,shape=(num_hidden,))
br = nd.random.normal(loc=0,scale=0.01,shape=(num_hidden,))
bh = nd.random.normal(loc=0,scale=0.01,shape=(num_hidden,))
why = nd.random.normal(loc=0,scale=0.1,shape=(num_outputs , num_hidden))
by = nd.random.normal(loc=0,scale=0.1,shape=(num_outputs,))
params = [wxz , wxr , wxh , whz, whr, whh, bz, br, bh, why , by]
# attach gradient!!!
for param in params:
param.attach_grad()
#Fully Neural Network with 1 Hidden layer
def GRU_Cell(input, state):
for x in input:
z_t = nd.Activation(nd.FullyConnected(data=x,weight=wxz,no_bias=True,num_hidden=num_hidden)+
nd.FullyConnected(data=state,weight=whz,no_bias=True,num_hidden=num_hidden)+bz,act_type="sigmoid")
r_t = nd.Activation(nd.FullyConnected(data=x,weight=wxr,no_bias=True,num_hidden=num_hidden)+
nd.FullyConnected(data=state,weight=whr,no_bias=True,num_hidden=num_hidden)+br,act_type="sigmoid")
g_t = nd.Activation(nd.FullyConnected(data=x,weight=wxh,no_bias=True,num_hidden=num_hidden)+
nd.FullyConnected(data=r_t*state,weight=whh,no_bias=True,num_hidden=num_hidden)+bh,act_type="tanh")
state = nd.multiply(z_t,state) + nd.multiply(1-z_t,g_t)
output = nd.FullyConnected(data=state, weight=why, bias=by, num_hidden=num_outputs)
output = nd.softmax(data=output)
return output, state
def cross_entropy(output, label):
return - nd.sum(label * nd.log(output), axis=0 , exclude=True)
#Adam optimizer
state=[]
optimizer=mx.optimizer.Adam(rescale_grad=1,learning_rate=learning_rate)
for param in params:
state.append(optimizer.create_state(0,param))
for i in tqdm(range(1,epoch+1,1)):
for data,label in train_data:
states = nd.zeros(shape=(data.shape[0], num_hidden), ctx=ctx)
data = data.as_in_context(ctx)
data = data.reshape(shape=(-1,time_step,num_inputs))
data=nd.transpose(data=data,axes=(1,0,2))
label = label.as_in_context(ctx)
label = nd.one_hot(label , num_outputs)
with autograd.record():
outputs, states = GRU_Cell(data, states)
loss = cross_entropy(outputs,label) # (batch_size,)
loss.backward()
cost = nd.mean(loss).asscalar()
for j,param in enumerate(params):
optimizer.update(0,param,param.grad,state[j])
test_accuracy = evaluate_accuracy(test_data, time_step, num_inputs, num_hidden, GRU_Cell, ctx)
print(" epoch : {} , last batch cost : {}".format(i,cost))
print("Test_acc : {0:0.3f}%".format(test_accuracy * 100))
#weight_save
if i % save_period==0:
if not os.path.exists("weights"):
os.makedirs("weights")
print("saving weights")
nd.save("weights/FashionMNIST_GRUweights-{}".format(i),params)
test_accuracy = evaluate_accuracy(test_data, time_step, num_inputs, num_hidden, GRU_Cell, ctx)
print("Test_acc : {0:0.3f}%".format(test_accuracy * 100))
return "optimization completed"
def test_mx_quantize(batch_size=10, iter_num=10):
logger = logging.getLogger("log.test.mx.quantize")
ctx = [mx.gpu(int(i)) for i in "1,3".split(',') if i.strip()]
inputs_ext = { 'data': {
'shape': (batch_size, 3, 224, 224),
}}
inputs = [mx.sym.var(n) for n in inputs_ext]
data_iter = ds.load_imagenet_rec(batch_size)
def data_iter_func():
data = data_iter.next()
return data.data[0], data.label[0]
data, _ = data_iter_func()
net1 = utils.load_model(*load_fname(version), inputs, ctx=ctx)
acc_top1 = mx.metric.Accuracy()
acc_top5 = mx.metric.TopKAccuracy(5)
acc_top1.reset()
acc_top5.reset()
def mobilenet(data, label):
data = gluon.utils.split_and_load(data, ctx_list=ctx, batch_axis=0, even_split=False)
res = [net1.forward(d) for d in data]
res = nd.concatenate(res)
acc_top1.update(label, res)
_, top1 = acc_top1.get()
acc_top5.update(label, res)
_, top5 = acc_top5.get()
return "top1={:6.2%} top5={:6.2%}".format(top1, top5)
calib_ctx = mx.gpu(1)
sym_fname, param_fname = load_fname(version)
sym, params = mx.sym.load(sym_fname), nd.load(param_fname)
sym, params = spass.sym_quant_prepare(sym, params, inputs_ext)
if True:
if True:
mrt = _mrt.MRT(sym, params, inputs_ext)
mrt.set_data('data', data)
mrt.calibrate()
# [ 0.0008745864 0.03330660510427334 ] 0.6670066884888368 0.7753906
# mrt.set_threshold("mobilenet0_dense0_weight", 0.67)
# # [ -0.0036011334 0.054821780899052534 ] 1.100036751338784 1.4626989
# mrt.set_threshold("mobilenet0_conv24_batchnorm24_fwd_weight", 1.1)
# # [ 0.013243316 1.7543557133786065 ] 70.18747185088569 94.66275
# mrt.set_threshold("mobilenet0_conv23_batchnorm23_fwd_weight", 35.10)
# # [ -0.0016149869 0.05713169649243355 ] 1.1442489167675376 1.7122083
# mrt.set_threshold("mobilenet0_conv20_batchnorm20_fwd_weight", 1.144)
# # [ -0.0015804865 0.04523811489343643 ] 0.9063427844084799 1.0745146
# mrt.set_threshold("mobilenet0_conv16_batchnorm16_fwd_weight", 0.90)
# # [ 0.4315614 2.447332109723772 ] 49.37820360490254 63.959927
# mrt.set_threshold("mobilenet0_conv2_batchnorm2_fwd", 49.37)
# # [ 0.9770754 1.3392452512468611 ] 27.761980422905516 40.729546
# mrt.set_threshold("mobilenet0_relu2_fwd", 27.76)
# [ 1.0975745 1.0489919010632773 ] 22.077412493692915 23.784576
# mrt.set_threshold("mobilenet0_relu4_fwd", 22.08)
# # [ 0.9885562 2.360489403014386 ] 48.19834426651407 69.22121
# mrt.set_threshold("mobilenet0_conv5_batchnorm5_fwd", 48.2)
# # [ 0.7895588 1.0544661745870065 ] 21.878882319617176 30.95745
# mrt.set_threshold("mobilenet0_relu17_fwd", 21.88)
# # [ 0.8717863 1.0887600296120434 ] 22.646986888608513 28.265652
# mrt.set_threshold("mobilenet0_relu19_fwd", 22.65)
# # [ 0.35124516 0.6501711574631898 ] 13.354668314135012 20.770807
# mrt.set_threshold("mobilenet0_relu20_fwd", 13.35)
# # [ 0.9378179 1.110470714216975 ] 23.147232155910086 27.886068
# mrt.set_threshold("mobilenet0_relu21_fwd", 23.15)
# # [ 0.36263302 0.6352599878026505 ] 13.067832775738754 17.18809
# mrt.set_threshold("mobilenet0_relu22_fwd", 13.07)
# # [ 0.19875833 0.49999100821358816 ] 10.198578498193196 16.625143
# mrt.set_threshold("mobilenet0_relu24_fwd", 10.2)
# # [ 0.32357717 1.6308352606637138 ] 65.55698759215218 75.84912
# mrt.set_threshold("mobilenet0_conv25_batchnorm25_fwd", 32.94)
# # [ 0.36793178 1.512995992388044 ] 30.62785163096019 49.464615
# mrt.set_threshold("mobilenet0_relu26_fwd", 30.63)
# # [ 18.028658 38.61970520019531 ] 790.4227619171143 805.51886
# mrt.set_threshold("sum0", 790.423)
mrt.set_output_prec(8)
qsym, qparams, inputs_ext = mrt.quantize()
else:
inputs_ext['data']['data'] = data
th_dict = calib.sym_calibrate(sym, params, inputs_ext, ctx=calib_ctx)
qsym, qparams, precs, _ = calib.sym_simulate(sym, params, inputs_ext, th_dict)
qsym, qparams = calib.sym_realize(qsym, qparams, inputs_ext, precs)
dump_sym, dump_params, dump_ext = load_fname(version, "sym.quantize", True)
sim.save_ext(dump_ext, inputs_ext)
nd.save(dump_params, qparams)
open(dump_sym, "w").write(qsym.tojson())
dump_sym, dump_params = load_fname(version, "nnvm.compile")
nnvm_sym, nnvm_params = spass.mxnet_to_nnvm(qsym, qparams, inputs_ext)
spass.cvm_build(nnvm_sym, nnvm_params, inputs_ext, dump_sym, dump_params)
dump_sym, dump_params, dump_ext = load_fname(version, "sym.quantize", True)
(inputs_ext,) = sim.load_ext(dump_ext)
net2 = utils.load_model(dump_sym, dump_params, inputs, ctx=ctx)
qacc_top1 = mx.metric.Accuracy()
qacc_top5 = mx.metric.TopKAccuracy(5)
qacc_top1.reset()
qacc_top5.reset()
def cvm_quantize(data, label):
data = sim.load_real_data(data, 'data', inputs_ext)
data = gluon.utils.split_and_load(data, ctx_list=ctx, batch_axis=0, even_split=False)
res = [net2.forward(d) for d in data]
res = nd.concatenate(res)
qacc_top1.update(label, res)
_, top1 = qacc_top1.get()
qacc_top5.update(label, res)
_, top5 = qacc_top5.get()
return "top1={:6.2%} top5={:6.2%}".format(top1, top5)
utils.multi_validate(mobilenet, data_iter_func,
cvm_quantize,
iter_num=iter_num, logger=logger)
print('[%d/%d] Loss_G: %.4f Loss_D: %.4f' % (i, num_train_iters, mx.nd.mean(loss_generator).asscalar(), mx.nd.mean(loss_discrim).asscalar()))
# # transform both dslr and enhanced images to grayscale
# enhanced_gray = tf.reshape(tf.image.rgb_to_grayscale(enhanced), [-1, PATCH_WIDTH * PATCH_HEIGHT])
# dslr_gray = tf.reshape(tf.image.rgb_to_grayscale(dslr_image), [-1, PATCH_WIDTH * PATCH_HEIGHT])
print(np.array(enhanced_images_gray.asnumpy()).shape)
print(np.array(dslr_images_gray.asnumpy()).shape)
print(np.array(adversarial_.asnumpy()).shape)
print(np.array(discrim_predictions.asnumpy()).shape)
print(np.array(discrim_target.asnumpy()).shape)
print(np.array(enhanced_vgg.asnumpy()).shape)
print(np.array(dslr_vgg.asnumpy()).shape)
# dsfsd
arg_names = set(y_enhanced.list_arguments())
aux_names = set(y_enhanced.list_auxiliary_states())
arg_dict = {}
for name, param in enhanced.collect_params().items():
if name in arg_names:
arg_dict['arg:%s' % name] = param._reduce()
else:
assert name in aux_names
arg_dict['aux:%s' % name] = param._reduce()
ndarray.save('./models/dlsr.params', arg_dict)
# model.collect_params().save('./models/CAE_mxnet.params')
y_enhanced.save('./models/dlsr.json')
def save(self, symbol_file, params_file):
""" Model dump to disk. """
with open(symbol_file, 'w') as fout:
fout.write(self.symbol.tojson())
nd.save(params_file, self.params)
import mxnet as mx
from mxnet import gluon
from mxnet import ndarray as nd
from mxnet import init
x = nd.ones(3)
y = nd.zeros(4)
# save ndarray
filename = './data/test1.params'
nd.save(filename, [x, y]) # a list
# load ndarray
a, b, = nd.load(filename)
print(a == x)
print(b == y)
# other data type
mydict = {'x': x, 'y': y}
filename = './data/test2.params'
nd.save(filename, mydict)
c = nd.load(filename)
print(c)
# save & load gluon model parameters
def get_net():
net = gluon.nn.Sequential()
with net.name_scope():
net.add(gluon.nn.Dense(10, activation='relu'))
def muitlclass_logistic_regression(epoch=100,
batch_size=10,
save_period=10,
load_period=100,
weight_decay=0.001,
learning_rate=0.1,
dataset="MNIST",
ctx=mx.gpu(0)):
#data selection
if dataset == "MNIST":
train_data, test_data = MNIST(batch_size)
elif dataset == "CIFAR10":
train_data, test_data = CIFAR10(batch_size)
elif dataset == "FashionMNIST":
train_data, test_data = FashionMNIST(batch_size)
else:
return "The dataset does not exist."
# data structure
if dataset == "MNIST" or dataset == "FashionMNIST":
num_inputs = 28 * 28
elif dataset == "CIFAR10":
num_inputs = 32 * 32
num_outputs = 10
if dataset == "MNIST":
path = "weights/MNIST_weights-{}".format(load_period)
elif dataset == "FashionMNIST":
path = "weights/FashionMNIST_weights-{}".format(load_period)
elif dataset == "CIFAR10":
path = "weights/CIFAR10_weights-{}".format(load_period)
if os.path.exists(path):
print("loading weights")
[W, B] = nd.load(path) # weights load
W = W.as_in_context(ctx)
B = B.as_in_context(ctx)
params = [W, B]
else:
print("initializing weights")
with ctx:
W = nd.random.normal(loc=0,
scale=0.01,
shape=(num_inputs, num_outputs))
B = nd.random.normal(loc=0, scale=0.01, shape=num_outputs)
params = [W, B]
# attach gradient!!!
for i, param in enumerate(params):
param.attach_grad()
def network(X):
Y = nd.dot(X, W) + B
softmax_Y = nd.softmax(Y)
return softmax_Y
def cross_entropy(output, label):
return -nd.sum(label * nd.log(output), axis=1)
#Adam optimizer
state = []
optimizer = mx.optimizer.Adam(rescale_grad=1, learning_rate=learning_rate)
for i, param in enumerate(params):
state.append(optimizer.create_state(0, param))
def SGD(params, lr, wd, bs):
for param in params:
param -= ((lr * param.grad) / bs + wd * param)
for i in tqdm(range(1, epoch + 1, 1)):
for data, label in train_data:
if dataset == "CIFAR10":
data = nd.slice_axis(data=data, axis=3, begin=0, end=1)
data = data.as_in_context(ctx).reshape((-1, num_inputs))
label = label.as_in_context(ctx)
label = nd.one_hot(label, num_outputs)
with autograd.record():
output = network(data)
#loss definition
loss = cross_entropy(output, label) # (batch_size,)
cost = nd.mean(loss).asscalar()
loss.backward()
for j, param in enumerate(params):
optimizer.update(0, param, param.grad, state[j])
#SGD(params, learning_rate , weight_decay , batch_size)
print(" epoch : {} , last batch cost : {}".format(i, cost))
#weight_save
if i % save_period == 0:
if not os.path.exists("weights"):
os.makedirs("weights")
print("saving weights")
if dataset == "MNIST":
nd.save("weights/MNIST_weights-{}".format(i), params)
elif dataset == "CIFAR10":
nd.save("weights/CIFAR10_weights-{}".format(i), params)
elif dataset == "FashionMNIST":
nd.save("weights/FashionMNIST_weights-{}".format(i), params)
test_accuracy = evaluate_accuracy(test_data, num_inputs, network, ctx,
dataset)
print("Test_acc : {}".format(test_accuracy))
return "optimization completed"
def test_sym_pass(batch_size=10, iter_num=10, quantize=True):
logger = logging.getLogger("log.test.sym.pass")
calib_ctx = mx.gpu(1)
ctx = [mx.gpu(int(i)) for i in "1,2,3,4".split(',') if i.strip()]
inputs_ext = {
'data': {
'shape': (batch_size, 3, 224, 224),
}
}
inputs = [mx.sym.var(name) for name in inputs_ext]
logger.info("load dataset, symbol and parameters")
# load dataset and iter function
data_iter = ds.load_imagenet_rec(batch_size)
def data_iter_func():
data = data_iter.next()
return data.data[0], data.label[0]
data, _ = data_iter_func()
# load original model for accuracy
net1 = utils.load_model(*load_fname(version), inputs, ctx=ctx)
acc_top1 = mx.metric.Accuracy()
acc_top5 = mx.metric.TopKAccuracy(5)
acc_top1.reset()
acc_top5.reset()
def shufflenet(data, label):
data = gluon.utils.split_and_load(data,
ctx_list=ctx,
batch_axis=0,
even_split=False)
res = [net1.forward(d) for d in data]
res = nd.concatenate(res)
acc_top1.update(label, res)
_, top1 = acc_top1.get()
acc_top5.update(label, res)
_, top5 = acc_top5.get()
return "top1={:6.2%} top5={:6.2%}".format(top1, top5)
if quantize:
# load original model
sym_fname, param_fname = load_fname(version)
sym, params = mx.sym.load(sym_fname), nd.load(param_fname)
sym, params = spass.sym_quant_prepare(sym, params, inputs_ext)
# quantize process
mrt = _mrt.MRT(sym, params, inputs_ext) # initialize
mrt.set_data('data', data) # set input data
mrt.calibrate(ctx=calib_ctx) # calibration
mrt.set_output_prec(8) # set output prec, do nothing by default
qsym, qparams, inputs_ext = mrt.quantize() # quantization
# dump quantized model
dump_sym, dump_params, dump_ext = load_fname(version, "sym.quantize",
True)
sim.save_ext(dump_ext, inputs_ext)
nd.save(dump_params, qparams)
open(dump_sym, "w").write(qsym.tojson())
if False:
# convert to cvm executor model
inputs_ext['data']['shape'] = (1, 3, 224, 224)
nnvm_sym, nnvm_params = spass.mxnet_to_nnvm(qsym, qparams, inputs_ext)
spass.cvm_build(nnvm_sym, nnvm_params, inputs_ext,
*load_fname(version, "nnvm"))
# load quantized model for accuracy
dump_sym, dump_params, dump_ext = load_fname(version, "sym.quantize", True)
(inputs_ext, ) = sim.load_ext(dump_ext)
inputs = [mx.sym.var(n) for n in inputs_ext]
net3 = utils.load_model(dump_sym, dump_params, inputs, ctx=ctx)
# net3 = mx.gluon.nn.SymbolBlock(qsym, inputs)
# utils.load_parameters(net3, qparams, ctx=ctx)
qacc_top1 = mx.metric.Accuracy()
qacc_top5 = mx.metric.TopKAccuracy(5)
qacc_top1.reset()
qacc_top5.reset()
def cvm_quantize(data, label):
data = sim.load_real_data(data, 'data', inputs_ext)
data = gluon.utils.split_and_load(data,
ctx_list=ctx,
batch_axis=0,
even_split=False)
res = [net3.forward(d) for d in data]
res = nd.concatenate(res)
qacc_top1.update(label, res)
_, top1 = qacc_top1.get()
qacc_top5.update(label, res)
_, top5 = qacc_top5.get()
return "top1={:6.2%} top5={:6.2%}".format(top1, top5)
# compare accuracy between models
utils.multi_validate(shufflenet,
data_iter_func,
cvm_quantize,
iter_num=iter_num,
logger=logger)
def test_mrt_quant(batch_size=1, iter_num=10):
logger = logging.getLogger("log.test.mrt.quantize")
ctx = mx.gpu(1)
qctx = mx.gpu(3)
input_size = 512
h, w = input_size, input_size
inputs_ext = {
'data': {
'shape': (batch_size, 3, h, w),
}
}
val_data = dataset.load_voc(batch_size, input_size)
val_data_iter = iter(val_data)
def data_iter_func():
data, label = next(val_data_iter)
return data, label
sym_file, param_file = load_fname()
sym, params = mx.sym.load(sym_file), nd.load(param_file)
sym, params = spass.sym_quant_prepare(sym, params, inputs_ext)
keys = [
"ssd0_multiperclassdecoder0_concat0",
"ssd0_multiperclassdecoder0__mulscalar0",
"ssd0_multiperclassdecoder0_slice_axis0",
"ssd0_multiperclassdecoder0_zeros_like1",
"ssd0_normalizedboxcenterdecoder0_concat0",
]
base, base_params, base_inputs_ext, top, top_params, top_inputs_ext \
= _mrt.split_model(sym, params, inputs_ext, keys)
dump_sym, dump_params = load_fname("mrt.base")
open(dump_sym, "w").write(base.tojson())
nd.save(dump_params, base_params)
dump_sym, dump_params, dump_ext = load_fname("mrt.top", True)
open(dump_sym, "w").write(top.tojson())
nd.save(dump_params, top_params)
sim.save_ext(dump_ext, top_inputs_ext)
dump_sym, dump_params = load_fname("mrt.base")
base, base_params = mx.sym.load(dump_sym), nd.load(dump_params)
dump_sym, dump_params, dump_ext = load_fname("mrt.top", True)
top, top_params = mx.sym.load(dump_sym), nd.load(dump_params)
(top_inputs_ext, ) = sim.load_ext(dump_ext)
base_inputs = [mx.sym.var(n) for n in inputs_ext]
base_graph = mx.gluon.nn.SymbolBlock(base, base_inputs)
utils.load_parameters(base_graph, base_params, ctx=ctx)
top_inputs = [mx.sym.var(n) for n in top_inputs_ext]
top_graph = mx.gluon.nn.SymbolBlock(top, top_inputs)
utils.load_parameters(top_graph, top_params, ctx=ctx)
metric = dataset.load_voc_metric()
metric.reset()
def yolov3(data, label):
def net(data):
tmp = base_graph(data.as_in_context(ctx))
outs = top_graph(*tmp)
return outs
acc = validate_data(net, data, label, metric)
return "{:6.2%}".format(acc)
# utils.multi_validate(yolov3, data_iter_func,
# iter_num=iter_num, logger=logger)
# exit()
if True:
mrt = _mrt.MRT(base, base_params, inputs_ext)
for i in range(16):
data, _ = data_iter_func()
mrt.set_data('data', data)
th_dict = mrt.calibrate(ctx=ctx)
_, _, dump_ext = load_fname("mrt.dict", True)
sim.save_ext(dump_ext, th_dict)
_, _, dump_ext = load_fname("mrt.dict", True)
(th_dict, ) = sim.load_ext(dump_ext)
if True:
mrt = _mrt.MRT(base, base_params, base_inputs_ext)
mrt.set_th_dict(th_dict)
mrt.set_threshold('data', 2.64)
mrt.set_fixed("ssd0_multiperclassdecoder0_concat0")
mrt.set_fixed("ssd0_multiperclassdecoder0__mulscalar0")
mrt.set_fixed("ssd0_multiperclassdecoder0_zeros_like1")
mrt.set_threshold("ssd0_multiperclassdecoder0_slice_axis0", 1)
# mrt.set_threshold("ssd0_normalizedboxcenterdecoder0_concat0", 512)
mrt.set_output_prec(30)
qbase, qbase_params, qbase_inputs_ext = mrt.quantize()
oscales = mrt.get_output_scales()
maps = mrt.get_maps()
dump_sym, dump_params, dump_ext = load_fname("mrt.quantize", True)
open(dump_sym, "w").write(qbase.tojson())
nd.save(dump_params, qbase_params)
sim.save_ext(dump_ext, qbase_inputs_ext, oscales, maps)
# merge quantize model
if True:
qb_sym, qb_params, qb_ext = load_fname("mrt.quantize", True)
qbase, qbase_params = mx.sym.load(qb_sym), nd.load(qb_params)
qbase_inputs_ext, oscales, maps = sim.load_ext(qb_ext)
name_maps = {
"ssd0_slice_axis41": "ssd0_multiperclassdecoder0_concat0",
"ssd0_slice_axis42": "ssd0_multiperclassdecoder0_slice_axis0",
"ssd0_slice_axis43": "ssd0_normalizedboxcenterdecoder0_concat0",
}
oscales_dict = dict(zip([c.attr('name') for c in base], oscales))
oscales = [oscales_dict[name_maps[c.attr('name')]] for c in top]
def box_nms(node, params, graph):
name, op_name = node.attr('name'), node.attr('op_name')
childs, attr = sutils.sym_iter(
node.get_children()), node.list_attr()
if op_name == '_greater_scalar':
valid_thresh = sutils.get_attr(attr, 'scalar', 0)
attr['scalar'] = int(valid_thresh * oscales[1])
node = sutils.get_mxnet_op(op_name)(*childs, **attr, name=name)
elif op_name == '_contrib_box_nms':
valid_thresh = sutils.get_attr(attr, 'valid_thresh', 0)
attr['valid_thresh'] = int(valid_thresh * oscales[1])
node = sutils.get_mxnet_op(op_name)(*childs, **attr, name=name)
return node
qsym, qparams = _mrt.merge_model(qbase, qbase_params, top, top_params,
maps, box_nms)
sym_file, param_file, ext_file = load_fname("mrt.all.quantize", True)
open(sym_file, "w").write(qsym.tojson())
nd.save(param_file, qparams)
sim.save_ext(ext_file, qbase_inputs_ext, oscales)
if True:
dump_sym, dump_params, dump_ext = load_fname("mrt.all.quantize", True)
net2_inputs_ext, oscales = sim.load_ext(dump_ext)
inputs = [mx.sym.var(n) for n in net2_inputs_ext]
net2 = utils.load_model(dump_sym, dump_params, inputs, ctx=qctx)
net2_metric = dataset.load_voc_metric()
net2_metric.reset()
def mrt_quantize(data, label):
def net(data):
data = sim.load_real_data(data, 'data', net2_inputs_ext)
outs = net2(data.as_in_context(qctx))
outs = [
o.as_in_context(ctx) / oscales[i]
for i, o in enumerate(outs)
]
return outs
acc = validate_data(net, data, label, net2_metric)
return "{:6.2%}".format(acc)
utils.multi_validate(yolov3,
data_iter_func,
mrt_quantize,
iter_num=iter_num,
logger=logger)
def CNN(epoch = 100 , batch_size=256, save_period=10 , load_period=100 , weight_decay=0.001 ,learning_rate= 0.1 , dataset = "MNIST", ctx=mx.cpu(0)):
#only for fullynetwork , 2d convolution
def BN(X,gamma,beta,momentum=0.9,eps=1e-5,scope_name="",is_training=True):
if len(X.shape)==2 :
mean = nd.mean(X,axis=0)
variance = nd.mean(nd.square(X-mean),axis=0)
if is_training:
Normalized_X=(X-mean)/nd.sqrt(variance+eps)
elif is_training==False and not os.path.exists(path1) and epoch==0: #not param
Normalized_X = (X - mean) / nd.sqrt(variance + eps)
else:
Normalized_X=(X-MOVING_MEANS[scope_name] / nd.sqrt(MOVING_VARS[scope_name]+eps))
out=gamma*Normalized_X+beta
#pay attention that when it comes to (2D) CNN , We normalize batch_size * height * width over each channel, so that gamma and beta have the lengths the same as channel_count ,
#referenced by http://gluon.mxnet.io/chapter04_convolutional-neural-networks/cnn-batch-norm-scratch.html
elif len(X.shape)==4:
N , C , H , W = X.shape
mean = nd.mean(X , axis=(0,2,3)) #normalize batch_size * height * width over each channel
variance = nd.mean(nd.square(X-mean.reshape((1,C,1,1))),axis=(0,2,3))
if is_training:
Normalized_X = (X-mean.reshape((1,C,1,1)))/nd.sqrt(variance.reshape((1,C,1,1))+eps)
elif is_training == False and not os.path.exists(path1) and epoch==0: # load param , when epoch=0
Normalized_X = (X-mean.reshape((1,C,1,1)))/nd.sqrt(variance.reshape((1,C,1,1))+eps)
else:
Normalized_X = (X - MOVING_MEANS[scope_name].reshape((1, C, 1, 1))) / nd.sqrt(MOVING_VARS[scope_name].reshape((1, C, 1, 1)) + eps)
out=gamma.reshape((1,C,1,1))*Normalized_X+beta.reshape((1,C,1,1))
if scope_name not in MOVING_MEANS and scope_name not in MOVING_VARS:
MOVING_MEANS[scope_name] = mean
MOVING_VARS[scope_name] = variance
else:
MOVING_MEANS[scope_name] = MOVING_MEANS[scope_name] * momentum + mean * (1.0 - momentum)
MOVING_VARS[scope_name] = MOVING_VARS[scope_name] * momentum + variance * (1.0 - momentum)
return out
#data selection
if dataset =="MNIST":
train_data , test_data = MNIST(batch_size)
elif dataset == "CIFAR10":
train_data, test_data = CIFAR10(batch_size)
elif dataset == "FashionMNIST":
train_data, test_data = FashionMNIST(batch_size)
else:
return "The dataset does not exist."
# data structure
if dataset == "MNIST" or dataset =="FashionMNIST":
color = 1
elif dataset == "CIFAR10":
color = 3
num_outputs = 10
if dataset == "MNIST":
path1 = "weights/MNIST_weights-{}".format(load_period)
path2 = "weights/MNIST_weights_MEANS-{}".format(load_period)
path3 = "weights/MNIST_weights_VARS-{}".format(load_period)
elif dataset == "FashionMNIST":
path1 = "weights/FashionMNIST_weights-{}".format(load_period)
path2 = "weights/FashionMNIST_weights_MEANS-{}".format(load_period)
path3 = "weights/FashionMNIST_weights_VARS-{}".format(load_period)
elif dataset == "CIFAR10":
path1 = "weights/CIFAR10_weights-{}".format(load_period)
path2 = "weights/CIFAR10_weights_MEANS-{}".format(load_period)
path3 = "weights/CIFAR10_weights_VARS-{}".format(load_period)
if os.path.exists(path1):
print("loading weights")
[W1, B1, gamma1, beta1, W2, B2, gamma2, beta2, W3, B3, gamma3, beta3, W4, B4, gamma4, beta4, W5, B5]= nd.load(path1) # weights load
MOVING_MEANS = nd.load(path2)
MOVING_VARS = nd.load(path3)
for m,v in zip(MOVING_MEANS.values() , MOVING_VARS.values()):
m.as_in_context(ctx)
v.as_in_context(ctx)
W1=W1.as_in_context(ctx)
B1=B1.as_in_context(ctx)
gamma1=gamma1.as_in_context(ctx)
beta1=beta1.as_in_context(ctx)
W2=W2.as_in_context(ctx)
B2=B2.as_in_context(ctx)
gamma2=gamma2.as_in_context(ctx)
beta2=beta2.as_in_context(ctx)
W3=W3.as_in_context(ctx)
B3=B3.as_in_context(ctx)
gamma3=gamma3.as_in_context(ctx)
beta3=beta3.as_in_context(ctx)
W4=W4.as_in_context(ctx)
B4=B4.as_in_context(ctx)
gamma4=gamma4.as_in_context(ctx)
beta4=beta4.as_in_context(ctx)
W5=W5.as_in_context(ctx)
B5=B5.as_in_context(ctx)
params = [W1 , B1 , gamma1 , beta1 , W2 , B2 , gamma2 , beta2 , W3 , B3 , gamma3 , beta3 , W4 , B4, gamma4 , beta4 , W5 , B5]
else:
print("initializing weights")
weight_scale=0.1
BN_weight_scale = 0.01
MOVING_MEANS, MOVING_VARS = {}, {}
with ctx:
W1 = nd.random.normal(loc=0 , scale=weight_scale , shape=(60,color,3,3))
B1 = nd.random.normal(loc=0 , scale=weight_scale , shape=60)
gamma1 = nd.random.normal(shape=60, loc=1, scale=BN_weight_scale)
beta1 = nd.random.normal(shape=60, scale=BN_weight_scale)
W2 = nd.random.normal(loc=0 , scale=weight_scale , shape=(30,60,6,6))
B2 = nd.random.normal(loc=0 , scale=weight_scale , shape=30)
gamma2 = nd.random.normal(shape=30, loc=1, scale=BN_weight_scale)
beta2 = nd.random.normal(shape=30, scale=BN_weight_scale)
if dataset == "CIFAR10":
reshape=750
elif dataset == "MNIST" or dataset == "FashionMNIST":
reshape=480
W3 = nd.random.normal(loc=0 , scale=weight_scale , shape=(120, reshape))
B3 = nd.random.normal(loc=0 , scale=weight_scale , shape=120)
gamma3 = nd.random.normal(shape=120, loc=1, scale=BN_weight_scale)
beta3 = nd.random.normal(shape=120, scale=BN_weight_scale)
W4 = nd.random.normal(loc=0 , scale=weight_scale , shape=(64, 120))
B4 = nd.random.normal(loc=0 , scale=weight_scale , shape=64)
gamma4 = nd.random.normal(shape=64, loc=1, scale=BN_weight_scale)
beta4 = nd.random.normal(shape=64, scale=BN_weight_scale)
W5 = nd.random.normal(loc=0 , scale=weight_scale , shape=(num_outputs , 64))
B5 = nd.random.normal(loc=0 , scale=weight_scale , shape=num_outputs)
params = [W1 , B1 , gamma1 , beta1 , W2 , B2 , gamma2 , beta2 , W3 , B3 , gamma3 , beta3 , W4 , B4, gamma4 , beta4 , W5 , B5]
# attach gradient!!!
for i, param in enumerate(params):
param.attach_grad()
# network - similar to lenet5
'''Convolution parameter
data: (batch_size, channel, height, width)
weight: (num_filter, channel, kernel[0], kernel[1])
bias: (num_filter,)
out: (batch_size, num_filter, out_height, out_width).
'''
def network(X, is_training=True, drop_rate=0.0): # formula : output_size=((input−weights+2*Padding)/Stride)+1
#data size
# MNIST,FashionMNIST = (batch size , 1 , 28 , 28)
# CIFAR = (batch size , 3 , 32 , 32)
C_H1=nd.Activation(data=BN(nd.Convolution(data=X , weight = W1 , bias = B1 , kernel=(3,3) , stride=(1,1) , num_filter=60), gamma1 , beta1 ,scope_name="BN1",is_training=is_training) , act_type="relu") # MNIST : result = ( batch size , 60 , 26 , 26) , CIFAR10 : : result = ( batch size , 60 , 30 , 30)
P_H1=nd.Pooling(data = C_H1 , pool_type = "max" , kernel=(2,2), stride = (2,2)) # MNIST : result = (batch size , 60 , 13 , 13) , CIFAR10 : result = (batch size , 60 , 15 , 15)
C_H2=nd.Activation(data=BN(nd.Convolution(data=P_H1 , weight = W2 , bias = B2 , kernel=(6,6) , stride=(1,1) , num_filter=30), gamma2 , beta2 ,scope_name="BN2",is_training=is_training), act_type="relu") # MNIST : result = ( batch size , 30 , 8 , 8), CIFAR10 : result = ( batch size , 30 , 10 , 10)
P_H2=nd.Pooling(data = C_H2 , pool_type = "max" , kernel=(2,2), stride = (2,2)) # MNIST : result = (batch size , 30 , 4 , 4) , CIFAR10 : result = (batch size , 30 , 5 , 5)
P_H2 = nd.flatten(data=P_H2)
'''FullyConnected parameter
• data: (batch_size, input_dim)
• weight: (num_hidden, input_dim)
• bias: (num_hidden,)
• out: (batch_size, num_hidden)
'''
F_H1 =nd.Activation(BN(nd.FullyConnected(data=P_H2 , weight=W3 , bias=B3 , num_hidden=120), gamma3, beta3 ,scope_name="BN3",is_training=is_training),act_type="relu")
F_H1 =nd.Dropout(data=F_H1, p=drop_rate)
F_H2 =nd.Activation(BN(nd.FullyConnected(data=F_H1 , weight=W4 , bias=B4 , num_hidden=64), gamma4, beta4, scope_name="BN4",is_training=is_training),act_type="relu")
F_H2 =nd.Dropout(data=F_H2, p=drop_rate)
softmax_Y = nd.softmax(nd.FullyConnected(data=F_H2 ,weight=W5 , bias=B5 , num_hidden=10))
return softmax_Y
def cross_entropy(output, label):
return - nd.sum(label * nd.log(output), axis=1)
#Adam optimizer
state=[]
optimizer=mx.optimizer.Adam(rescale_grad=1,learning_rate=learning_rate)
for i,param in enumerate(params):
state.append(optimizer.create_state(0,param))
def SGD(params, lr , wd , bs):
for param in params:
param -= ((lr * param.grad)/bs+wd*param)
for i in tqdm(range(1,epoch+1,1)):
for data,label in train_data:
data = data.as_in_context(ctx)
label = label.as_in_context(ctx)
label = nd.one_hot(label , num_outputs)
with autograd.record():
output = network(data,is_training=True,drop_rate=0.0)
#loss definition
loss = cross_entropy(output,label) # (batch_size,)
cost = nd.mean(loss).asscalar()
loss.backward()
for j,param in enumerate(params):
optimizer.update(0,param,param.grad,state[j])
#SGD(params, learning_rate , weight_decay , batch_size)
print(" epoch : {} , last batch cost : {}".format(i,cost))
#weight_save
if i % save_period==0:
if not os.path.exists("weights"):
os.makedirs("weights")
print("saving weights")
if dataset=="MNIST":
nd.save("weights/MNIST_weights-{}".format(i), params)
nd.save("weights/MNIST_weights_MEANS-{}".format(i), MOVING_MEANS)
nd.save("weights/MNIST_weights_VARS-{}".format(i), MOVING_VARS)
elif dataset=="CIFAR10":
nd.save("weights/CIFAR10_weights-{}".format(i), params)
nd.save("weights/CIFAR10_weights_MEANS-{}".format(i), MOVING_MEANS)
nd.save("weights/CIFAR10_weights_VARS-{}".format(i), MOVING_VARS)
elif dataset=="FashionMNIST":
nd.save("weights/FashionMNIST_weights-{}".format(i),params)
nd.save("weights/FashionMNIST_weights_MEANS-{}".format(i), MOVING_MEANS)
nd.save("weights/FashionMNIST_weights_VARS-{}".format(i), MOVING_VARS)
test_accuracy = evaluate_accuracy(test_data , network , ctx)
print("Test_acc : {}".format(test_accuracy))
return "optimization completed"
def CNN(epoch = 100 , batch_size=10, save_period=10 , load_period=100 , weight_decay=0.001 ,learning_rate= 0.1 , dataset = "MNIST", ctx=mx.cpu(0)):
#data selection
if dataset =="MNIST":
train_data , test_data = MNIST(batch_size)
elif dataset == "CIFAR10":
train_data, test_data = CIFAR10(batch_size)
elif dataset == "FashionMNIST":
train_data, test_data = FashionMNIST(batch_size)
else:
return "The dataset does not exist."
# data structure
if dataset == "MNIST" or dataset =="FashionMNIST":
color = 1
elif dataset == "CIFAR10":
color = 3
num_outputs = 10
if dataset == "MNIST":
path = "weights/MNIST_weights-{}".format(load_period)
elif dataset == "FashionMNIST":
path = "weights/FashionMNIST_weights-{}".format(load_period)
elif dataset == "CIFAR10":
path = "weights/CIFAR10_weights-{}".format(load_period)
if os.path.exists(path):
print("loading weights")
[W1, B1, W2, B2, W3, B3, W4, B4, W5, B5] = nd.load(path) # weights load
W1=W1.as_in_context(ctx)
B1=B1.as_in_context(ctx)
W2=W2.as_in_context(ctx)
B2=B2.as_in_context(ctx)
W3=W3.as_in_context(ctx)
B3=B3.as_in_context(ctx)
W4=W4.as_in_context(ctx)
B4=B4.as_in_context(ctx)
W5=W5.as_in_context(ctx)
B5=B5.as_in_context(ctx)
params = [W1 , B1 , W2 , B2 , W3 , B3 , W4 , B4 , W5 , B5]
else:
print("initializing weights")
with ctx:
W1 = nd.random.normal(loc=0 , scale=0.1 , shape=(60,color,3,3))
B1 = nd.random.normal(loc=0 , scale=0.1 , shape=60)
W2 = nd.random.normal(loc=0 , scale=0.1 , shape=(30,60,6,6))
B2 = nd.random.normal(loc=0 , scale=0.1 , shape=30)
if dataset == "CIFAR10":
reshape=750
elif dataset == "MNIST" or dataset == "FashionMNIST":
reshape=480
W3 = nd.random.normal(loc=0 , scale=0.1 , shape=(120, reshape))
B3 = nd.random.normal(loc=0 , scale=0.1 , shape=120)
W4 = nd.random.normal(loc=0 , scale=0.1 , shape=(64, 120))
B4 = nd.random.normal(loc=0 , scale=0.1 , shape=64)
W5 = nd.random.normal(loc=0 , scale=0.1 , shape=(num_outputs , 64))
B5 = nd.random.normal(loc=0 , scale=0.1 , shape=num_outputs)
params = [W1 , B1 , W2 , B2 , W3 , B3 , W4 , B4, W5 , B5]
# attach gradient!!!
for i, param in enumerate(params):
param.attach_grad()
# network - similar to lenet5
'''Convolution parameter
data: (batch_size, channel, height, width)
weight: (num_filter, channel, kernel[0], kernel[1])
bias: (num_filter,)
out: (batch_size, num_filter, out_height, out_width).
'''
def network(X,drop_rate=0.0): # formula : output_size=((input−weights+2*Padding)/Stride)+1
#data size
# MNIST,FashionMNIST = (batch size , 1 , 28 , 28)
# CIFAR = (batch size , 3 , 32 , 32)
C_H1=nd.Activation(data= nd.Convolution(data=X , weight = W1 , bias = B1 , kernel=(3,3) , stride=(1,1) , num_filter=60) , act_type="relu") # MNIST : result = ( batch size , 60 , 26 , 26) , CIFAR10 : : result = ( batch size , 60 , 30 , 30)
P_H1=nd.Pooling(data = C_H1 , pool_type = "max" , kernel=(2,2), stride = (2,2)) # MNIST : result = (batch size , 60 , 13 , 13) , CIFAR10 : result = (batch size , 60 , 15 , 15)
C_H2=nd.Activation(data= nd.Convolution(data=P_H1 , weight = W2 , bias = B2 , kernel=(6,6) , stride=(1,1) , num_filter=30), act_type="relu") # MNIST : result = ( batch size , 30 , 8 , 8), CIFAR10 : result = ( batch size , 30 , 10 , 10)
P_H2=nd.Pooling(data = C_H2 , pool_type = "max" , kernel=(2,2), stride = (2,2)) # MNIST : result = (batch size , 30 , 4 , 4) , CIFAR10 : result = (batch size , 30 , 5 , 5)
P_H2 = nd.flatten(data=P_H2)
'''FullyConnected parameter
• data: (batch_size, input_dim)
• weight: (num_hidden, input_dim)
• bias: (num_hidden,)
• out: (batch_size, num_hidden)
'''
F_H1 =nd.Activation(nd.FullyConnected(data=P_H2 , weight=W3 , bias=B3 , num_hidden=120),act_type="sigmoid")
F_H1 =nd.Dropout(data=F_H1, p=drop_rate)
F_H2 =nd.Activation(nd.FullyConnected(data=F_H1 , weight=W4 , bias=B4 , num_hidden=64),act_type="sigmoid")
F_H2 =nd.Dropout(data=F_H2, p=drop_rate)
softmax_Y = nd.softmax(nd.FullyConnected(data=F_H2 ,weight=W5 , bias=B5 , num_hidden=10))
return softmax_Y
def cross_entropy(output, label):
return - nd.sum(label * nd.log(output), axis=1)
#Adam optimizer
state=[]
optimizer=mx.optimizer.Adam(rescale_grad=1,learning_rate=learning_rate)
for i,param in enumerate(params):
state.append(optimizer.create_state(0,param))
def SGD(params, lr , wd , bs):
for param in params:
param -= ((lr * param.grad)/bs+wd*param)
for i in tqdm(range(1,epoch+1,1)):
for data,label in train_data:
data = data.as_in_context(ctx)
label = label.as_in_context(ctx)
label = nd.one_hot(label , num_outputs)
with autograd.record():
output = network(data,drop_rate=0.2)
#loss definition
loss = cross_entropy(output,label) # (batch_size,)
cost = nd.mean(loss).asscalar()
loss.backward()
for j,param in enumerate(params):
optimizer.update(0,param,param.grad,state[j])
#SGD(params, learning_rate , weight_decay , batch_size)
print(" epoch : {} , last batch cost : {}".format(i,cost))
#weight_save
if i % save_period==0:
if not os.path.exists("weights"):
os.makedirs("weights")
print("saving weights")
if dataset=="MNIST":
nd.save("weights/MNIST_weights-{}".format(i),params)
elif dataset=="CIFAR10":
nd.save("weights/CIFAR10_weights-{}".format(i),params)
elif dataset=="FashionMNIST":
nd.save("weights/FashionMNIST_weights-{}".format(i),params)
test_accuracy = evaluate_accuracy(test_data , network , ctx)
print("Test_acc : {}".format(test_accuracy))
return "optimization completed"
def test_sym_pass(batch_size=10, iter_num=10, quantize=True):
logger = logging.getLogger("log.test.sym.pass")
calib_ctx = mx.gpu(2)
ctx = [mx.gpu(int(i)) for i in "1,2,3,4".split(',') if i.strip()]
input_size = 299
version = "v3"
h, w = input_size, input_size
inputs_ext = {
'data': {
'shape': (batch_size, 3, h, w),
}
}
inputs = [mx.sym.var(name) for name in inputs_ext]
logger.info("load dataset, symbol and parameters")
data_iter = ds.load_imagenet_rec(batch_size, input_size)
def data_iter_func():
data = data_iter.next()
return data.data[0], data.label[0]
net1 = utils.load_model(*load_fname(version), inputs, ctx=ctx)
acc_top1 = mx.metric.Accuracy()
acc_top5 = mx.metric.TopKAccuracy(5)
acc_top1.reset()
acc_top5.reset()
def inception_v3(data, label):
data = gluon.utils.split_and_load(data,
ctx_list=ctx,
batch_axis=0,
even_split=False)
res = [net1.forward(d) for d in data]
res = nd.concatenate(res)
acc_top1.update(label, res)
_, top1 = acc_top1.get()
acc_top5.update(label, res)
_, top5 = acc_top5.get()
return "top1={:6.2%} top5={:6.2%}".format(top1, top5)
if quantize:
sym_file, param_file = load_fname(version)
sym, params = mx.sym.load(sym_file), nd.load(param_file)
sym, params = spass.sym_quant_prepare(sym, params, inputs_ext)
data, _ = data_iter_func()
if True:
dump_sym, dump_params, dump_ext = load_fname(version, "mrt", True)
mrt = _mrt.MRT(sym, params, inputs_ext)
mrt.set_data('data', data)
mrt.calibrate(ctx=calib_ctx)
mrt.set_output_prec(8)
qsym, qparams, inputs_ext = mrt.quantize()
else:
dump_sym, dump_params, dump_ext = load_fname(
version, "sym.quantize", True)
inputs_ext['data']['data'] = data
th_dict = calib.sym_calibrate(sym,
params,
inputs_ext,
ctx=calib_ctx)
qsym, qparams, precs, _ = calib.sym_simulate(
sym, params, inputs_ext, th_dict)
qsym, qparams = calib.sym_realize(qsym, qparams, inputs_ext, precs)
sim.save_ext(dump_ext, inputs_ext)
nd.save(dump_params, qparams)
open(dump_sym, "w").write(qsym.tojson())
dump_sym, dump_params, dump_ext = load_fname(version, "mrt", True)
(inputs_ext, ) = sim.load_ext(dump_ext)
net2 = utils.load_model(dump_sym, dump_params, inputs, ctx=ctx)
qacc_top1 = mx.metric.Accuracy()
qacc_top5 = mx.metric.TopKAccuracy(5)
qacc_top1.reset()
qacc_top5.reset()
def cvm_quantize(data, label):
data = sim.load_real_data(data, 'data', inputs_ext)
data = gluon.utils.split_and_load(data,
ctx_list=ctx,
batch_axis=0,
even_split=False)
res = [net2.forward(d) for d in data]
res = nd.concatenate(res)
qacc_top1.update(label, res)
_, top1 = qacc_top1.get()
qacc_top5.update(label, res)
_, top5 = qacc_top5.get()
return "top1={:6.2%} top5={:6.2%}".format(top1, top5)
utils.multi_validate(inception_v3,
data_iter_func,
cvm_quantize,
iter_num=iter_num,
logger=logger)
if True:
sym, params = mx.sym.load(sym_file), nd.load(param_file)
sym, params = spass.sym_quant_prepare(sym, params, inputs_ext)
import os
open(os.path.expanduser('~/tvm-cvm/data/test_ryt2.json'),
'w').write(sym.tojson())
exit()
qsym, qparams, precs, _ = calib.sym_simulate(sym, params, inputs_ext, data,
calib_ctx)
qsym, qparams = calib.sym_realize(qsym, qparams, inputs_ext, precs, "tvm")
dump_sym, dump_params, dump_ext = load_fname(version, "sym.quantize", True)
sim.save_ext(dump_ext, inputs_ext)
nd.save(dump_params, qparams)
open(dump_sym, "w").write(qsym.tojson())
dump_sym, dump_params, dump_ext = load_fname(version, "sym.quantize", True)
sym, params = mx.sym.load(dump_sym), nd.load(dump_params)
(inputs_ext, ) = sim.load_ext(dump_ext)
inputs = [mx.sym.var(n) for n in inputs_ext]
net2 = utils.load_model(dump_sym, dump_params, inputs, ctx=ctx)
qacc_top1 = mx.metric.Accuracy()
qacc_top5 = mx.metric.TopKAccuracy(5)
qacc_top1.reset()
qacc_top5.reset()
def cvm_quantize(data, label):
data = sim.load_real_data(data, 'data', inputs_ext)
def save(self, path, name):
emb_fname = os.path.join(path, name + '.emb')
nd.save(emb_fname, self.emb)
import mxnet as mx
from mxnet import ndarray as nd
model_name = "resnet-v1-101"
data = nd.load('./%s.params' % model_name)
new_data = dict()
first_conv_weight = 'arg:conv1_weight'
first_conv_bias = 'arg:conv1_bias'
print(data[first_conv_weight].shape)
for k, v in data.items():
if k == first_conv_weight:
# change Channel
v = mx.nd.array(v.asnumpy()[:, ::-1, :, :])
print("CHANGE")
elif k == first_conv_bias:
print(v.shape)
new_data[k] = v
nd.save('%s-rgb-0000.params' % model_name, new_data)