ó àÆ÷Xc@`sÖdZddlmZmZmZddlZddlZddlZddl m Z m Z m Z m Z ejdƒZdZde fd„ƒYZed „Zdedd „Zge_ededd „ƒZdS( s? Provide a simple user friendly API to Theano-managed memory. i(tabsolute_importtprint_functiontdivisionN(t ContainertVariabletgenerictutilsstheano.compile.sharedvaluesrestructuredtext entSharedVariablecB`s}eZdZd Zd d d„Zeed„Zed„Zed„Z d„Z d„Z d„Z d„Z ee e ƒZRS( s¯ Variable that is (defaults to being) shared between functions that it appears in. Parameters ---------- name : str The name for this variable (see `Variable`). type : str The type for this variable (see `Variable`). value A value to associate with this variable (a new container will be created). strict True : assignments to .value will not be cast or copied, so they must have the correct type. allow_downcast Only applies if `strict` is False. True : allow assigned value to lose precision when cast during assignment. False : never allow precision loss. None : only allow downcasting of a Python float to a scalar floatX. container The container to use for this variable. Illegal to pass this as well as a value. Notes ----- For more user-friendly constructor, see `shared`. c C`s­tt|ƒjd|d|ddddƒ|dk rj||_|dk sX|dk r©tdƒ‚q©n?t|d|j|d|d|ƒgd td|d|ƒ|_dS( Nttypetnametownertindexs9value and strict are ignored if you pass a container heretstoragetstricttallow_downcasttreadonly( tsuperRt__init__tNonet containert TypeErrorRtfiltertFalse(tselfR RtvalueR RR((s:/tmp/pip-build-X4mzal/theano/theano/compile/sharedvalue.pyRDs    cC`s'|r|jjStj|jjƒSdS(sy Get the non-symbolic value associated with this SharedVariable. Parameters ---------- borrow : bool True to permit returning of an object aliased to internal memory. return_internal_type : bool True to permit the returning of an arbitrary type object used internally to store the shared variable. Only with borrow=False and return_internal_type=True does this function guarantee that you actually get the internal object. But in that case, you may get different return types when using different compute devices. N(RRtcopytdeepcopy(Rtborrowtreturn_internal_type((s:/tmp/pip-build-X4mzal/theano/theano/compile/sharedvalue.pyt get_valueWs cC`s.|r||j_ntj|ƒ|j_dS(sâ Set the non-symbolic value associated with this SharedVariable. Parameters ---------- borrow : bool True to use the new_value directly, potentially creating problems related to aliased memory. Changes to this value will be visible to all functions using this SharedVariable. Notes ----- Set_value will work in-place on the GPU, if the following conditions are met: * The destination on the GPU must be c_contiguous. * The source is on the CPU. * The old value must have the same dtype as the new value (which is a given for now, since only float32 is supported). * The old and new value must have the same shape. * The old value is being completely replaced by the new value (not partially modified, e.g. by replacing some subtensor of it). It is also worth mentioning that, for efficient transfer to the GPU, Theano will make the new data ``c_contiguous``. This can require an extra copy of the data on the host. The inplace on gpu memory work when borrow is either True or False. N(RRRR(Rt new_valueR((s:/tmp/pip-build-X4mzal/theano/theano/compile/sharedvalue.pyt set_valuens#cC`s3|rd|jjd`_ for details. Some shared variable have ``broadcastable`` as extra kwargs. As shared variable shapes can change, all dimensions default to not being broadcastable, even if ``value`` has a shape of 1 along some dimension. This parameter allows you to create for example a `row` or `column` 2d tensor. sLShared variable constructor needs numeric values and not symbolic variables.R R Rs:you might consider using 'theano.shared(..., borrow=True)'s¨No suitable SharedVariable constructor could be found. Are you sure all kwargs are supported? We do not support the parameter dtype or type. value="%s". parameters="%s"N(s:you might consider using 'theano.shared(..., borrow=True)'( R&RRtreversedR4R5Rt add_tag_tracet MemoryErrorR*(RR R RtkwargsR8tvarte((s:/tmp/pip-build-X4mzal/theano/theano/compile/sharedvalue.pyR4ßs %   c C`s%tdtd|d|d|d|ƒS(s& SharedVariable Constructor. RRR R R(RR(RR R R((s:/tmp/pip-build-X4mzal/theano/theano/compile/sharedvalue.pytgeneric_constructor%s(R2t __future__RRRRtloggingtnumpyR't theano.gofRRRRt getLoggert_loggert __docformat__RRR9RR4R5R@(((s:/tmp/pip-build-X4mzal/theano/theano/compile/sharedvalue.pyts   " C