IPFS是一个去中心化的点对点文件存储网络，允许用户以分布式方式存储、访问和共享文件，提供更高的安全性、隐私性和可扩展性。StorX使任何人都可以在全球多个托管节点之间安全地加密、分段和分发关键数据。存储在StorX上的每个文件在加密之前都被分成多个部分，并存储在由位于世界各地的不同运营商运行的独立存储节点中。
什么是去中心化存储？
去中心化存储是一种基于区块链去中心化网络的存储解决方案，而不是依赖于单一的中心化实体。数据保存在分散网络中的各个节点上，而不是保存在单一机构控制下的单一服务器上。
def fuse_bn(self):
search_engine=SearchableGraph(graph=self.graph)
paths=search_engine.path_matching(
sp_expr=lambda x:x.type in{'Conv','Gemm','ConvTranspose'},
rp_expr=lambda x,y:False,
ep_expr=lambda x:x.type=='BatchNormalization',
direction='down')
for path in paths:
path=path.tolist()
assert len(path)==2,('Oops seems we got something unexpected.')
computing_op,bn_op=path
assert isinstance(computing_op,Operation)and isinstance(bn_op,Operation)
if(len(self.graph.get_downstream_operations(computing_op))!=1 or
len(self.graph.get_upstream_operations(bn_op))!=1):
ppq_warning(f'PPQ can not merge operation{computing_op.name}and{bn_op.name},'
'this is not suppose to happen with your network,'
'network with batchnorm inside might not be able to quantize and deploy.')
continue
assert len(bn_op.parameters)==4,'BatchNorm should have 4 parameters,namely alpha,beta,mean,var'
alpha=bn_op.parameters[0].value
beta=bn_op.parameters[1].value
mean=bn_op.parameters[2].value
var=bn_op.parameters[3].value
epsilon=bn_op.attributes.get('epsilon',1e-5)
if computing_op.num_of_parameter==1:
w=computing_op.parameters[0].value#no bias.
assert isinstance(w,torch.Tensor),'values of parameters are assumed as torch Tensor'
if computing_op.type=='ConvTranspose':
b=torch.zeros(w.shape[1]*computing_op.attributes.get('group',1))
elif computing_op.type=='Gemm'and computing_op.attributes.get('transB',0)==0:
b=torch.zeros(w.shape[1])
