def batch_dot(x, y, axes=None, name=None):
X = x.tensor
Y = y.tensor
if isinstance(axes, six.integer_types):
axes = (axes, axes)
if axes is None:
axes = (X.shape.ndims - 1, Y.shape.ndims - 2)
PLAIDML_BATCHDOT_TF_BEHAVIOR = os.getenv('PLAIDML_BATCHDOT_TF_BEHAVIOR')
if PLAIDML_BATCHDOT_TF_BEHAVIOR:
_report_unimplemented('batch_dot')
else:
# replicate theano/documentation-specified behavior
first_dim = edsl.TensorDim()
first_idx = edsl.TensorIndex()
batch_dim = edsl.TensorDim()
batch_idx = edsl.TensorIndex()
xdims = edsl.TensorDims(X.shape.ndims)
xdims[0] = first_dim
xdims[axes[0]] = batch_dim
xidxs = edsl.TensorIndexes(X.shape.ndims)
xidxs[0] = first_idx
xidxs[axes[0]] = batch_idx
ydims = edsl.TensorDims(Y.shape.ndims)
ydims[0] = first_dim
ydims[axes[1]] = batch_dim
yidxs = edsl.TensorIndexes(Y.shape.ndims)
yidxs[0] = first_idx
yidxs[axes[1]] = batch_idx
odims = [xdims[N] for N in range(len(xdims)) if N != axes[0]
] + [ydims[N] for N in range(1, len(ydims)) if N != axes[1]]
oidxs = [xidxs[N] for N in range(len(xidxs)) if N != axes[0]
] + [yidxs[N] for N in range(1, len(yidxs)) if N != axes[1]]
X.bind_dims(*xdims)
Y.bind_dims(*ydims)
O = edsl.TensorOutput(*odims)
O[oidxs] += X[xidxs] * Y[yidxs]
if len(odims) == 1:
O = plaidml_op.expand_dims(O, 1)
return _KerasNode('batch_dot', tensor=O)
def expand_dims(x, axis=-1, name=None):
logger.debug('expand_dims(x: {}, axis: {}, name={})'.format(x, axis, name))
return _KerasNode('expand_dims', name=name, tensor=plaidml_op.expand_dims(x.tensor, axis))
def expand_dims(x, axis=-1, name=None):
return _KerasNode('expand_dims', name=name, tensor=plaidml_op.expand_dims(x.tensor, axis))