Add a link to the PR to Malloc
Add a link to the PR to Malloc

to clarify why we do not use unified memory by default.

hvy/chainer,niboshi/chainer,wkentaro/chainer,keisuke-umezawa/chainer,hvy/chainer,hvy/chainer,wkentaro/chainer,hvy/chainer,chainer/chainer,okuta/chainer,pfnet/chainer,okuta/chainer,okuta/chainer,chainer/chainer,chainer/chainer,keisuke-umezawa/chainer,tkerola/chainer,wkentaro/chainer,niboshi/chainer,niboshi/chainer,wkentaro/chainer,keisuke-umezawa/chainer,okuta/chainer,chainer/chainer,keisuke-umezawa/chainer,niboshi/chainer