The first one is probably faster most of the time. But this interface isn't week supported on Theano. This is still experimental and have known crash cases.
On mar. 22 août 2017 12:33 Alfred Ferrer Florensa <[email protected]> wrote: > Hello, > > I am not sure where to ask this, but here seem the most appropiate place. > I have a little question about the working of the Multiple GPUs; would it > be equally fast this option (the one in the example on the > http://deeplearning.net/software/theano/tutorial/using_multi_gpu.html): > > import numpyimport theano > v01 = theano.shared(numpy.random.random((1024, 1024)).astype('float32'), > target='dev0')v02 = > theano.shared(numpy.random.random((1024, 1024)).astype('float32'), > target='dev0')v11 = > theano.shared(numpy.random.random((1024, 1024)).astype('float32'), > target='dev1')v12 = > theano.shared(numpy.random.random((1024, 1024)).astype('float32'), > target='dev1') > f = theano.function([], [theano.tensor.dot(v01, v02), > theano.tensor.dot(v11, v12)]) > f() > > Or this one where I am using the same device for both dots: > > import numpyimport theano > v01 = theano.shared(numpy.random.random((1024, 1024)).astype('float32'), > target='dev0')v02 = > theano.shared(numpy.random.random((1024, 1024)).astype('float32'), > target='dev0')v11 = > theano.shared(numpy.random.random((1024, 1024)).astype('float32'), > target='dev0')v12 = > theano.shared(numpy.random.random((1024, 1024)).astype('float32'), > target='dev0') > f = theano.function([], [theano.tensor.dot(v01, v02), > theano.tensor.dot(v11, v12)]) > f() > > > Thanks for your time > > -- > > --- > You received this message because you are subscribed to the Google Groups > "theano-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- --- You received this message because you are subscribed to the Google Groups "theano-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
