scatter和gather互为逆变换,长时间不用后,容易忘记。 scatter Tensor.scatter_(dim,index,src,reduce=None)→Tensor Writes all values from the tensorsrcintoselfat the indices specified in theindextensor. For each value insrc, its output index is specified by its index insrcfordimension!=dimand by ...
实际上tensorflow的gather和gather_nd恰好对应这两种功能,注意gather_nd要求indices的最后一维长度不大于params维数,但是可以小于. 比如 >>>importtensorflowastf>>>params=tf.reshape(tf.range(27),[3,3,3])>>>params[0,0]<tf.Tensor:shape=(3,),dtype=int32,numpy=array([0,1,2],dtype=int32)>>>indic...
接下来遍历本机模型的parameters,并获取grad梯度,发送到master node,并从master node获取平均值后更新gradforpinmodel.parameters():# 将grad值发送到master nodedist.gather(p.grad,group=group, async_op=False)# 接收master node发送过来的grad值dist.scatter(p.grad,group=group, src=0, async_op=False) opti...
Moreover, as for gather(), the values of index must be between 0 and self.size(dim) - 1 inclusive, and all values in a row along the specified dimension dim must be unique. index所有的值需要在[0,self.size(dim) - 1]区间内,这是必须满足的,否则越界了。第二句说沿着dim维的index的所有...
PyTorch中scatter和gather的用法 scatter的用法 scatter中文翻译为散射,首先看一个例子来直观感受一下这个API的功能,使用pytorch官网提供的例子。 import torch import torch.nn as nn 1. 2. x = torch.rand(2,5) x 1. 2. tensor([[0.2656, 0.5364, 0.8568, 0.5845, 0.2289], ...
The beginning of the academic year (the occasion when this paper was delivered at the United Faculty of Theology) is not only a time to gather but also a time when people and ideas are scattered in various ways for the sake of theological education. Several biblical and early Christian ...
在下文中一共展示了scatter_gather.gather方法的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。 示例1: _data_parallel_wrapper ▲点赞 6▼ # 需要导入模块: from torch.nn.parallel import scatter_gather [as 别名]# 或...
1)Scatter/Gather聚散 1.Study on UsingScatter/GatherOperation in RAID;磁盘阵列中的聚散技术研究 2)dispersion polymerization分散聚合 1.Synthesis of P(DMDAAC-AM) as cationic polymeric flocculants bydispersion polymerization;阳离子型高分子絮凝剂P(DMDAAC-AM)的分散聚合制备初探 ...
Gelly:Iterative Graph Processing),分别是:Vertex-Centric, Scatter-Gather和Gather-Sum-Apply,在上篇文章深入了解Flink Gelly图计算之—Vertex-Centric模型中我们详细的介绍了Vertex-Centric模型的实现原理和使用方法,接下来我们将详细的介绍一下Scatter-Gather模型的原理和实现过程,并以简单的示例来展示Scatter-Gather的...
Scatter Gather Java NIO Vectored IO Java NIO Channels provide an important new capability known as scatter/gather (referred to in some circles as vectored I/O). Scatter/gather is a simple yet powerful concept. Scatter/gather is a technique through which bytes can be read from a stream into ...