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Fix ConstantStubLink for chainer==6.0.0b2
#774
Closed
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In
chainer==6.0.0b2
,chainer.Chain.to_gpu
/to_cpu
no longer invokesto_gpu
/to_cpu
of child links, but directly enumerates parameters and persistent values and convert arrays accordingly.This change affects
ConstantStubLink
because its overriddento_gpu
/to_cpu
is ignored by parentChain
s.This PR addresses the problem using
add_persistent
to register output values ofConstantStubLink
.