Created
January 5, 2017 19:39
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from theano import function, config, shared, sandbox | |
import theano.tensor as T | |
import numpy | |
import time | |
vlen = 10 * 30 * 768 # 10 x #cores x # threads per core | |
iters = 1000 | |
rng = numpy.random.RandomState(22) | |
x = shared(numpy.asarray(rng.rand(vlen), config.floatX)) | |
f = function([], T.exp(x)) | |
print f.maker.fgraph.toposort() | |
t0 = time.time() | |
for i in xrange(iters): | |
r = f() | |
t1 = time.time() | |
print 'Looping %d times took' % iters, t1 - t0, 'seconds' | |
print 'Result is', r | |
if numpy.any([isinstance(x.op, T.Elemwise) for x in f.maker.fgraph.toposort()]): | |
print 'Used the cpu' | |
else: | |
print 'Used the gpu' |
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