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| author | Dwight Lidman <dwight.lidman@arm.com> | 2020-08-17 11:56:10 +0200 |
|---|---|---|
| committer | tim.hall <tim.hall@arm.com> | 2020-08-19 11:28:35 +0000 |
| commit | 2573311dbed6728fddba8bcb0cd03c35c45bbc03 (patch) | |
| tree | 25095cd37a90bb81a7f5af1583a62fc2642f6619 | |
| parent | fa34c6f4eebec25814c1e620a85721416f4d4ce3 (diff) | |
| download | ethos-u-vela-2573311dbed6728fddba8bcb0cd03c35c45bbc03.tar.gz | |
MLBEDSW-2729: Add restrictions for shapeless tensors
Vela often fails when encountering operators that have
inputs or outputs with shape == []. Only for elementwise
ops where shape is broadcasted from IFM2 to IFM1 is this
supported.
This commit adds a restriction which places ops with
shape [] tensors on the CPU except in the special case
of broadcasting for elemwise ops.
Signed-off-by: Dwight Lidman <dwight.lidman@arm.com>
Change-Id: I5b0855233e3b83870209f4da00fb2dbd0184fee0
| -rw-r--r-- | ethosu/vela/supported_operators.py | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/ethosu/vela/supported_operators.py b/ethosu/vela/supported_operators.py index fdf0c6b3..c4186018 100644 --- a/ethosu/vela/supported_operators.py +++ b/ethosu/vela/supported_operators.py @@ -138,9 +138,23 @@ class SupportedOperators: def check_generic_restrictions(self, op): # check fully defined shapes - for t in op.inputs + op.outputs: + for t in op.inputs: if not t.has_fully_defined_shape(): - print("Warning:", op, "has inputs/outputs of undefined shape, placing on CPU") + print("Warning:", op.type, "has input(s) of undefined shape, placing on CPU") + return False + if t.shape == [] and op.type not in self.binary_elem_wise_main_ops: + print("Warning:", op.type, "has input(s) of shape [].", + "Scalar input or broadcasting is not supported for this operator,", + "placing on CPU") + return False + for t in op.outputs: + if not t.has_fully_defined_shape(): + print("Warning:", op.type, "has output(s) of undefined shape, placing on CPU") + return False + if t.shape == []: + print("Warning:", op.type, "has output(s) of shape [].", + "Scalar input or broadcasting is not supported for this operator,", + "placing on CPU") return False # check data type |