Paddle

Commit Graph

Author	SHA1	Message	Date
fengjiayi	a1dc4311a3	Refactor `Tensor::CopyFrom()`	8 years ago
fengjiayi	69d99d481d	Add Tensor::CopyFrom and Tensor::mutable_data(Place place) 1. Add `Tensor::CopyFrom`. Current version can only support CPU memory copy. The support of GPU will be provided later by `paddle::memory`. The current implementation of `Tensor::CopyFrom` is a little inefficient: Every time `CopyFrom` is called, tensor will re-allocate its memory. However, if we try to check and reuse `placeholder_`, we have to provide a template parameter for `CopyFrom` to indicate the data type. It seems strange for a simple copy function. 2. Add `Tensor::mutable_data(Place place)`, which directly use member variable `dims_` as its dim parameter. This interface is required by `Op::InferShape`.	8 years ago
fengjiayi	2dccab87d4	fix some syntax problems	8 years ago
fengjiayi	0665dc9755	add more test	8 years ago
fengjiayi	ca39515e24	Add several interfaces for Tensor class 1. Add member variable 'DDim dims_' and a getter function 'dims()'. 'dims' is supposed to hold tensor's shape during Op::InferShape. 2. Remove 'mutable_data' which use default Place. User must specify a explicit Place when call 'mutable_data'. 3. A PlaceHolder may be shared by more than one tensor, and some of them may be the others' slices. So we add a new member variable 'offset_' for Tensor, which is used to show the byte offset between PlaceHolder::ptr_ and where tensor's data really begins. 4. Add functions 'ShareDataFrom' and 'Slice' for Tensor. TODO: Tensor needs a 'CopyFrom' function.	8 years ago
fengjiayi	e48e21da2b	remove unnecessary include	8 years ago
fengjiayi	2d1f95de87	fix a compile error	8 years ago
fengjiayi	d054a5eef8	re-submit	8 years ago
fengjiayi	e146fe836b	fix compile errors and add assert test	8 years ago
fengjiayi	9f408dfb1b	fix some compile error	8 years ago
fengjiayi	696ba1d2e1	init tensor_test.cc	8 years ago
Yi Wang	c263c21f7e	Update copyright informaiton	8 years ago
Yi Wang	2c188a20de	Follow QingQing's suggestion	8 years ago
Yi Wang	e2e0fbd418	Add tesnor.h	8 years ago

14 Commits (a1dc4311a30cbdd5af2c66deedf1162668d9001f)