I get the following error for using basic scan examples
File "__init__.pxd", line 155, in init theano.scan_module.scan_perform
(/home/kaggleteviot/.theano/compiledir_Linux-3.19--generic-x86_64-with-Ubuntu-14.04-trusty-x86_64-2.7.6-64/scan_perform/mod.cpp:9984)
ValueError: ('The following error happened while compiling the node',
forall_inplace,gpu,scan_fn}(Elemwise{maximum,no_inplace}.0,
GpuIncSubtensor{InplaceSet;:int64:}.0, GpuFromHost.0), '\n', 'numpy.dtype
has the wrong size, try recompiling')
snippet:
k = T.iscalar("k")
A = T.vector("A")
# Symbolic description of the result
result, updates = theano.scan(fn=lambda prior_result, A: prior_result * A,
outputs_info=T.ones_like(A),
non_sequences=A,
n_steps=k)
# We only care about A**k, but scan has provided us with A**1 through A**k.
# Discard the values that we don't care about. Scan is smart enough to
# notice this and not waste memory saving them.
final_result = result[-1]
# compiled function that returns A**k
power = theano.function(inputs=[A,k], outputs=final_result, updates=updates)
print(power(range(10),2))
print(power(range(10),4))
fct(T.arange(4), 1)
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