Caffe looks like it runs the same net on CPU and GPU with no conversion. I'm going to see if I can get it working on an AWS GPU instance this weekend.
David > -----Original Message----- > From: Computer-go [mailto:computer-go-boun...@computer-go.org] On Behalf > Of Michael Markefka > Sent: Wednesday, March 02, 2016 12:27 AM > To: computer-go@computer-go.org > Subject: Re: [Computer-go] Deep Zen - do we have a race now? > > Hi Petr, > > to clarify a bit: > > pylearn2 specifically comes with a script to convert a model trained on > a GPU into a version that runs on the CPU. This doesn't work very well > though and the documentation points that out too. According to the dev > commens that is down to how Theano, the framework pylearn2 is based on, > handles its shared variables und the CUDA variables need to be converted > to Theano tensor variables. > > Just wanted to advise caution that this process working flawlessly isn't > necessarily given in every NN lib. If Caffe does this well, then David > shouldn't have any problem of course and this warning doesn't apply > here. > > -Michael > > On Wed, Mar 2, 2016 at 8:57 AM, Petr Baudis <pa...@ucw.cz> wrote: > > On Tue, Mar 01, 2016 at 02:51:03PM -0800, David Fotland wrote: > >> > Also, if you are training on a GPU you can probably avoid a lot of > >> > hassle if you expect to run it on a GPU as well. I don't know how > >> > other NN implementations handle it, but the GPU-to-CPU conversion > >> > script that comes with the Theano-based pylearn2 kit doesn't work > very reliably. > >> I'll keep it in mind. I'm using caffe, which has a compile-time > flag, so I'm not sure it will work with GPU enabled on a machine without > a GPU. > > > > I'm not sure about Michael's specific problem, but in my experience, > > there is no trouble at all transferring stuff between CPU and GPU - > > your model is, after all, just the weight matrices. In Caffe, you > > should be able to switch between GPU and CPU completely freely. > > > > Petr Baudis > > _______________________________________________ > > Computer-go mailing list > > Computer-go@computer-go.org > > http://computer-go.org/mailman/listinfo/computer-go > _______________________________________________ > Computer-go mailing list > Computer-go@computer-go.org > http://computer-go.org/mailman/listinfo/computer-go _______________________________________________ Computer-go mailing list Computer-go@computer-go.org http://computer-go.org/mailman/listinfo/computer-go
