void Blob<Dtype>::ShareDiff(const Blob& other) {
// SID MEMORY COMPACT LIGHT WEIGHT CAFFE <BEGIN>
if(_is_diff_initialized==0){
diff_.reset(new SyncedMemory(capacity_*sizeof(Dtype)));
_is_diff_initialized=1;
}
// SID MEMORY COMPACT LIGHT WEIGHT CAFFE <END>
CHECK_EQ(count_, other.count());
diff_ = other.diff();
}
void Blob<Dtype>::ShareDiff(const Blob& other) {
CHECK_EQ(count_, other.count());
diff_ = other.diff();
}
void Blob<Dtype>::ShareDiff(const Blob& other) {
CHECK_EQ(count_, other.count());
diff_ = other.diff(); // 赋值操作共享other中的资源，并停止对原有资源的共享
}
void shareDiff(const Blob& blob) {
CHECK_EQ(count(), blob.count());
diff_ = blob.diff();
}