Function-Level Support Status

ONNX Support Status

Note:

In this document, the numbers in the header of all tables represent the version of onnx opset.

Import

• ✓: onnx specification defined, and supported.

• X: onnx specification defined, but not support yet.

• Empty: Not defined (Support status follows latest).

Total: 122/161

ONNX Operator	1	2	3	4	5	6	7	8	9	10	11	12	13	14	NNabla Func	Description
Abs	✓					✓	✓						✓		Abs
Acos							✓								ACos
Acosh									✓						ACosh
Add	✓					✓	✓						✓		Add2, Reshape
And	✓						✓								LogicalAnd, Reshape
ArgMax	✓						✓			X	✓		✓		Flip, Max, RSubScalar
ArgMin	✓						✓			X	✓		✓		Flip, Min, RSubScalar
Asin							✓								ASin
Asinh									✓						ASinh
Atan							✓								ATan
Atanh									✓						ATanh
AveragePool	✓						✓			X	X				AveragePooling, Pad	Not all features are verified. Those features can be verified by ONNXRuntime when opset > 6. Some feature is not supported by Nnabla such as Pad’s edge mode. if opset >= 10, the ceil_mode is not supported.
BatchNormalization	X					X	X		✓					✓	BatchNormalization
BitShift											✓				BitShift
Cast	✓					✓	✓		X				X
Ceil	✓					✓	✓						✓		Ceil
Celu													✓		Add2, Constant, Div2, ELU, Exp, MaximumScalar, MinimumScalar, Mul2, MulScalar, Reshape, Sub2
Clip	✓					✓	✓				✓		✓		Identity
Compress									X		X		✓		BoolGather, Gather, Reshape
Concat	✓			✓			✓				X		✓		Concatenate
ConcatFromSequence											X					Not yet implemented.
Constant	✓						✓		X		X				Identity
ConstantOfShape									✓						Constant
Conv	✓						✓				X				Convolution
ConvInteger										X						Not yet implemented.
ConvTranspose	✓						✓				X				Deconvolution
Cos							✓								Cos
Cosh									✓						Cosh
CumSum											✓				CumSum
DepthToSpace	✓						✓				✓		✓		Reshape, Transpose
DequantizeLinear										X			X			Not yet implemented.
Det											✓				BatchDet, Reshape
Div	✓					✓	✓						✓		Div2, Reshape
Dropout	✓					✓	✓			X			✓		Identity
DynamicQuantizeLinear											X					Not yet implemented.
Einsum													✓		Einsum
Elu	✓					✓	✓								ELU
Equal	✓						✓				X		✓		Equal, Reshape
Erf									✓				✓		Erf
Exp	✓					✓	✓						✓		Exp
Expand								✓	✓				X		Broadcast, Reshape
EyeLike									X		✓				EyeLike
Flatten	✓						✓		✓		✓		✓		Reshape
Floor	✓					✓	✓						✓		Floor
GRU	X		X				X									Not yet implemented.
Gather	✓						✓				✓		✓		Concatenate, Slice
GatherElements											X		X			Not yet implemented.
GatherND											X		X			Not yet implemented.
Gemm	✓					✓	✓		✓		✓		✓		Add2, BatchMatmul, MulScalar, Reshape
GlobalAveragePool	✓						✓								GlobalAveragePooling
GlobalLpPool	X	X														Not yet implemented.
GlobalMaxPool	✓						✓								Max
Greater	✓						✓		✓				✓		Greater, Reshape
GreaterOrEqual													✓		Equal, Greater, GreaterEqual, LogicalOr, Reshape
HardSigmoid	✓					✓	✓								AddScalar, HardSigmoid, MaximumScalar, MinimumScalar, MulScalar
HardSwish														✓	AddScalar, MaximumScalar, MinimumScalar, Mul2, MulScalar
Hardmax	✓						✓				✓		✓		Max, OneHot, Transpose
Identity	✓						✓						✓		Identity
If	X															Not yet implemented.
InstanceNormalization	✓					✓	✓								BatchNormalization, Concatenate, Reshape, Split
IsInf										✓					IsInf
IsNaN									✓				✓		IsNaN
LRN	✓						✓						✓		AddScalar, Div2, MulScalar, PowScalar, SumPooling, Transpose
LSTM	X						X									Not yet implemented.
LeakyRelu	✓					✓	✓								LeakyReLU
Less	✓						✓		✓				✓		Less, Reshape
LessOrEqual													✓		Equal, Less, LessEqual, LogicalOr, Reshape
Log	✓					✓	✓						✓		Log
LogSoftmax	✓						✓				✓		✓		Div2, Exp, Log, Max, Sub2, Sum
Loop	X										X					Not yet implemented.
LpNormalization	X															Not yet implemented.
LpPool	X	X									X					Not yet implemented.
MatMul	✓						✓		✓				✓		BatchMatmul
MatMulInteger										X						Not yet implemented.
Max	✓					✓	✓	✓	✓				✓		Maximum2
MaxPool	✓						✓	X		X	X		✓		MaxPooling, Pad	Not all features are verified. Those features can be verified by ONNXRuntime. if opset >= 10, the ceil_mode is not supported, dilations is not equal to 1 is not supported.
MaxRoiPool	X															Not yet implemented.
MaxUnpool									X		X					Not yet implemented.
Mean	✓					✓	✓	✓	✓				✓		Identity, Mean, Stack
MeanVarianceNormalization									X							Not yet implemented.
Min	✓					✓	✓	✓	✓				✓		Minimum2
Mod										X	✓		✓		Mod2, Reshape
Mul	✓					✓	✓						✓		Mul2, Reshape
Multinomial							X									Not yet implemented.
Neg	✓					✓	✓						✓		MulScalar
NonMaxSuppression										X	X					Not yet implemented.
NonZero									X				X		NonZero	Not yet implemented.
Not	✓						✓								LogicalNot
OneHot									X		X					Not yet implemented.
Or	✓						✓								LogicalOr, Reshape
PRelu	✓					✓	✓		X						PReLU
Pad	✓	✓					✓				✓				Pad	Onnx required to support “edge” mode, while nnabla does not support it.
Pow	✓						✓						✓		Pow2, Reshape
QLinearConv										X						Not yet implemented.
QLinearMatMul										X						Not yet implemented.
QuantizeLinear										X			✓		QuantizeLinear, Reshape
RNN	X						X									Not yet implemented.
RandomNormal	✓						✓								Randn
RandomNormalLike	✓						✓								Randn
RandomUniform	✓						✓								Rand
RandomUniformLike	✓						✓								Rand
Range											✓				Arange
Reciprocal	✓					✓	✓						✓		RDivScalar
ReduceL1	X										✓		✓		Norm
ReduceL2	X										✓		✓		Norm
ReduceLogSum	X										X					Not yet implemented.
ReduceLogSumExp	X										✓		✓		Exp, Log, Sum
ReduceMax	✓						✓				✓				Max
ReduceMean	✓						✓				✓				Mean
ReduceMin	✓						✓				✓				Min
ReduceProd	✓						✓				✓				Prod
ReduceSum	✓						✓				✓				Sum
ReduceSumSquare	✓						✓				✓				PowScalar, Sum
Relu	✓					✓	✓						✓		ReLU
Reshape	✓				✓		✓						✓	✓	Reshape
Resize										X	X		✓		Interpolate
ReverseSequence										X						Not yet implemented.
RoiAlign										X						Not yet implemented.
Round											✓				Round
Scan								X	X		X					Not yet implemented.
Scatter									✓		X				AddScalar, Equal, LessScalar, ScatterAdd, Where
ScatterElements											X		✓		AddScalar, Equal, LessScalar, ScatterAdd, Where
ScatterND											X		✓		Identity, ScatterNd, Transpose
Selu	✓					✓	✓								SELU
SequenceAt											X					Not yet implemented.
SequenceConstruct											X					Not yet implemented.
SequenceErase											X					Not yet implemented.
SequenceInsert											X					Not yet implemented.
SequenceLength											X					Not yet implemented.
Shape	X												✓		Shape
Shrink									X							Not yet implemented.
Sigmoid	✓					✓	✓						✓		Sigmoid
Sign									✓				✓		Sign
Sin							✓								Sin
Sinh									✓						Sinh
Size	X												X			Not yet implemented.
Slice	✓						✓			✓	X		X		Slice
Softmax	✓						✓				✓		✓		Div2, Exp, Max, Sub2, Sum
Softplus	✓						✓								SoftPlus
Softsign	✓						✓								SoftSign
SpaceToDepth	✓						✓								Reshape, Transpose
Split	✓	✓					✓				✓		✓		Split, Stack
SplitToSequence											X					Not yet implemented.
Sqrt	✓					✓	✓						✓		PowScalar
Squeeze	✓						✓				✓		✓		Reshape
StringNormalizer										X						Not yet implemented.
Sub	✓					✓	✓						✓		Reshape, Sub2
Sum	✓					✓	✓	X	X				✓		AddN
Tan							✓								Tan
Tanh	✓					✓	✓						✓		Tanh
TfIdfVectorizer									X							Not yet implemented.
ThresholdedRelu										✓					Constant, GreaterScalar, Where
Tile	✓					✓	✓						✓		Tile
TopK	✓						✓			X	X				TopKData
Transpose	✓						✓						✓		Transpose
Trilu														✓	Trilu
Unique											X				Unique	Not yet implemented.
Unsqueeze	✓						✓				✓		✓		Reshape
Upsample	X						X		✓	X					Unpooling
Where									✓						Where
Xor	✓						✓								LogicalXor, Reshape

Export

• ✓: Support to export this opset.

• △: Partially support to export this opset (e.g. some cases cannot be supported, or not completely tested).

• X: Supported, but test failed.

• Empty: Not support corresponding opset version.

Total: 125/215

Neural Network Layer

Count 11/18

NNabla Function	7	9	10	11	13	ONNX Op	Description
Affine	✓	✓	✓	✓	✓	Gemm, Reshape
RNN							Not yet implemented.
LSTM							Not yet implemented.
GRU							Not yet implemented.
Convolution	✓	✓	✓	✓	✓	Conv, Reshape
FusedConvolution							Not yet implemented.
DepthwiseConvolution	✓	✓	✓	✓	✓	Conv, Reshape
Deconvolution	✓	✓	✓	✓	✓	ConvTranspose, Reshape
DepthwiseDeconvolution	✓	✓	✓	✓	✓	ConvTranspose, Reshape
DeformableConvolution							Not yet implemented.
AdaptiveSeparableConvolution							Not yet implemented.
MaxPooling	✓	✓	✓	✓	✓	Constant, MaxPool, Pad, Reshape
AveragePooling	△	△	△	△	△	AveragePool, Constant, Pad, Reshape	Currently only supports the cases where both ignore_border and including_pad are True.
GlobalAveragePooling	✓	✓	✓	✓	✓	GlobalAveragePool
SumPooling	✓	✓	✓	✓	✓	AveragePool, Constant, Mul, Pad, Reshape
Unpooling	✓	✓	✓	✓	✓	Resize
Embed	✓	✓	✓	✓	✓	Gather
RoiAlign							Not yet implemented.

Neural Network Activation Functions

Count 20/22

NNabla Function	7	9	10	11	13	ONNX Op	Description
Sigmoid	✓	✓	✓	✓	✓	Sigmoid
Swish	✓	✓	✓	✓	✓	Mul, Sigmoid
Tanh	✓	✓	✓	✓	✓	Tanh
ReLU	✓	✓	✓	✓	✓	Relu
LeakyReLU	✓	✓	✓	✓	✓	LeakyRelu
Softmax	✓	✓	✓	✓	✓	Div, Exp, ReduceMax, ReduceSum, Sub
LogSoftmax	✓	✓	✓	✓	✓	Exp, Log, ReduceMax, ReduceSum, Sub
ELU	✓	✓	✓	✓	✓	Elu
SELU	✓	✓	✓	✓	✓	Selu
CReLU	✓	✓	✓	✓	✓	Concat, Neg, Relu
CELU	✓	✓	✓	✓	✓	Concat, Elu, Neg
PReLU	✓	✓	✓	✓	✓	PRelu, Reshape
GELU	✓	✓	✓	✓	✓	Add, Constant, Div, Mul, Pow, Sqrt, Tanh
Mish							Not yet implemented.
ReLU6	✓	✓	✓	✓	✓	Constant, Min, Relu
HardSigmoid	✓	✓	✓	✓	✓	HardSigmoid
HardTanh	✓	✓	✓	✓	✓	Constant, Max, Min, Neg
LogSigmoid	✓	✓	✓	✓	✓	Log, Sigmoid
SoftPlus	X	X	X	X	X	Softplus	Not yet implemented.
SoftSign	✓	✓	✓	✓	✓	Softsign
TanhShrink	✓	✓	✓	✓	✓	Sub, Tanh
Sinc	X	X	X	✓	✓	Constant, Div, Equal, Sin, Where

Normalization

Count 8/14

NNabla Function	7	9	10	11	13	ONNX Op	Description
FusedBatchNormalization	✓	✓	✓	✓	✓	Add, BatchNormalization, Constant, Div, Mul, ReduceMean, ReduceSum, Relu, Reshape, Squeeze, Sub
BatchNormalization	✓	✓	✓	✓	✓	BatchNormalization, Constant, Div, Mul, ReduceMean, ReduceSum, Reshape, Squeeze, Sub
GroupNormalization	✓	✓	✓	✓	✓	Add, Constant, Div, Mul, ReduceMean, Reshape, Sqrt, Sub
InstanceNormalization	✓	✓	✓	✓	✓	Add, Constant, Div, Mul, Pow, ReduceMean, ReduceSum, Reshape, Sub
LayerNormalization	✓	✓	✓	✓	✓	Add, Constant, Div, Mul, Pow, ReduceMean, ReduceSum, Sub
NormNormalization							Not yet implemented.
SyncBatchNormalization							Not yet implemented.
TensorNormalization							Not yet implemented.
WeightNormalization	✓	✓	✓	✓	✓	Add, Constant, Mul, Pow, ReduceSum, Reshape
WeightStandardization	✓	✓	✓	✓	✓	Add, Constant, Div, Mul, Pow, ReduceMean, ReduceSum, Sub
SpectralNorm	✓	✓	✓	✓	✓	Add, Constant, Div, Gemm, Pow, ReduceSum, Reshape, Sqrt, Transpose
MeanSubtraction							Not yet implemented.
ClipGradByValue							Not yet implemented.
ClipGradByNorm							Not yet implemented.

Reduction

Count 5/10

NNabla Function	7	9	10	11	13	ONNX Op	Description
Sum	✓	✓	✓	✓	✓	ReduceSum
CumSum							Not yet implemented.
Mean	✓	✓	✓	✓	✓	ReduceMean
Max	✓	✓	✓	✓	✓	ReduceMax
Min	✓	✓	✓	✓	✓	ReduceMin
Norm							Not yet implemented.
Prod	✓	✓	✓	✓	✓	ReduceProd
CumProd							Not yet implemented.
ReduceSum							Not yet implemented.
ReduceMean							Not yet implemented.

Arithmetic

Count 11/14

NNabla Function	7	9	10	11	13	ONNX Op	Description
Add2	✓	✓	✓	✓	✓	Add
AddN							Not yet implemented.
BcAdd2							Not yet implemented.
Sub2	✓	✓	✓	✓	✓	Sub
Mul2	✓	✓	✓	✓	✓	Mul
MulN							Not yet implemented.
Div2	✓	✓	✓	✓	✓	Div
Pow2	✓	✓	✓	✓	✓	Pow
AddScalar	✓	✓	✓	✓	✓	Add, Constant
MulScalar	✓	✓	✓	✓	✓	Constant, Mul
PowScalar	✓	✓	✓	✓	✓	Constant, Pow
RSubScalar	✓	✓	✓	✓	✓	Constant, Sub
RDivScalar	✓	✓	✓	✓	✓	Constant, Div
RPowScalar	✓	✓	✓	✓	✓	Constant, Pow

Logical

Count 29/30

NNabla Function	7	9	10	11	13	ONNX Op	Description
Sign	X	✓	✓	✓	✓	Sign
Minimum2	✓	✓	✓	✓	✓	Add, Constant, Min
Maximum2	✓	✓	✓	✓	✓	Add, Constant, Max
MinimumScalar	✓	✓	✓	✓	✓	Add, Constant, Min
MaximumScalar	✓	✓	✓	✓	✓	Add, Constant, Max
LogicalAnd	✓	✓	✓	✓	✓	And
LogicalOr	✓	✓	✓	✓	✓	Or
LogicalXor	✓	✓	✓	✓	✓	Xor
Equal	X	X	X	✓	✓	Equal
NotEqual	X	X	X	✓	✓	Equal, Not
GreaterEqual	✓	✓	✓	✓	✓	Less, Not
Greater	✓	✓	✓	✓	✓	Greater
LessEqual	✓	✓	✓	✓	✓	Greater, Not
Less	✓	✓	✓	✓	✓	Less
SearchSorted							Not yet implemented.
LogicalAndScalar	✓	✓	✓	✓	✓	And, Constant
LogicalOrScalar	✓	✓	✓	✓	✓	Constant, Or
LogicalXorScalar	✓	✓	✓	✓	✓	Constant, Xor
EqualScalar	X	X	X	✓	✓	Constant, Equal
NotEqualScalar	X	X	X	✓	✓	Constant, Equal, Not
GreaterEqualScalar	✓	✓	✓	✓	✓	Constant, Less, Not
GreaterScalar	✓	✓	✓	✓	✓	Constant, Greater
LessEqualScalar	✓	✓	✓	✓	✓	Constant, Greater, Not
LessScalar	✓	✓	✓	✓	✓	Constant, Less
LogicalNot	✓	✓	✓	✓	✓	Not
IsNaN	X	✓	✓	✓	✓	IsNaN
IsInf	X	X	✓	✓	✓	IsInf
ResetNaN	X	✓	✓	✓	✓	Constant, IsNaN, Where
ResetInf	X	X	✓	✓	✓	Constant, IsInf, Where
Where	X	✓	✓	✓	✓	Where

Math

Count 22/22

NNabla Function	7	9	10	11	13	ONNX Op	Description
Constant	✓	✓	✓	✓	✓	Constant, Identity
Arange	✓	✓	✓	✓	✓	Constant, Identity
Abs	✓	✓	✓	✓	✓	Abs
Exp	✓	✓	✓	✓	✓	Exp
Log	✓	✓	✓	✓	✓	Log
Identity	✓	✓	✓	✓	✓	Identity
BatchMatmul	✓	✓	✓	✓	✓	MatMul, Transpose
Round	X	X	X	✓	✓	Round
Ceil	✓	✓	✓	✓	✓	Ceil
Floor	✓	✓	✓	✓	✓	Floor
Sin	✓	✓	✓	✓	✓	Sin
Cos	✓	✓	✓	✓	✓	Cos
Tan	✓	✓	✓	✓	✓	Tan
Sinh	X	✓	✓	✓	✓	Sinh
Cosh	X	✓	✓	✓	✓	Cosh
ASin	✓	✓	✓	✓	✓	Asin
ACos	✓	✓	✓	✓	✓	Acos
ATan	✓	✓	✓	✓	✓	Atan
ATan2	✓	✓	✓	✓	✓	Atan, Div
ASinh	X	✓	✓	✓	✓	Asinh
ACosh	X	✓	✓	✓	✓	Acosh
ATanh	X	✓	✓	✓	✓	Atanh

Array Manipulation

Count 12/30

NNabla Function	7	9	10	11	13	ONNX Op	Description
Concatenate	✓	✓	✓	✓	✓	Concat
Split	✓	✓	✓	✓	✓	Split, Squeeze
Stack	✓	✓	✓	✓	✓	Concat, Unsqueeze
Slice	△	△	✓	✓	✓	Constant, Slice	ONNX slice cannot support step != 1 on opset < 10.
Pad	△	△	△	△	△	Constant, Pad	When the mode of the pad is reflect, if the size of the pad exceeds the input size, onnxruntime cannot handle it.
Transpose	✓	✓	✓	✓	✓	Transpose
Broadcast	X	✓	✓	✓	✓
BroadcastTo	✓	✓	✓	✓	✓
Tile	✓	✓	✓	✓	✓	Constant, Reshape, Tile
OneHot	X	✓	✓	✓	✓	Flatten, Gather, Reshape
Flip	✓	✓	✓	✓	✓	Gather, Identity, Transpose
Shift							Not yet implemented.
Sort							Not yet implemented.
Reshape	✓	✓	✓	✓	✓	Constant, Reshape
MatrixDiag							Not yet implemented.
MatrixDiagPart							Not yet implemented.
Meshgrid							Not yet implemented.
BatchDet							Not yet implemented.
BatchInv							Not yet implemented.
BatchLogdet							Not yet implemented.
Assign							Not yet implemented.
Gather							Not yet implemented.
GatherNd							Not yet implemented.
BoolGather							Not yet implemented.
ScatterNd							Not yet implemented.
ScatterAdd							Not yet implemented.
BoolScatter							Not yet implemented.
BoolFill							Not yet implemented.
PackPaddedSequence							Not yet implemented.
PadPackedSequence							Not yet implemented.

Signal Processing

Count 1/5

NNabla Function	7	9	10	11	13	ONNX Op	Description
Interpolate	X	X	△	✓	✓	Resize
FFT							Not yet implemented.
IFFT							Not yet implemented.
STFT							Not yet implemented.
ISTFT							Not yet implemented.

Stochasticity

Count 0/15

NNabla Function	7	9	10	11	13	ONNX Op	Description
Dropout	X	X	X	X	X	Dropout	The Dropout in nnabla has no test mode and contains random parameters, so the test result is not the same as onnx.
TopKData							Not yet implemented.
TopKGrad							Not yet implemented.
Rand							Not yet implemented.
Randint							Not yet implemented.
Randn							Not yet implemented.
RandBinomial							Not yet implemented.
RandBeta							Not yet implemented.
RandGamma							Not yet implemented.
RandomChoice							Not yet implemented.
RandomCrop							Not yet implemented.
RandomFlip							Not yet implemented.
RandomShift							Not yet implemented.
RandomErase							Not yet implemented.
ImageAugmentation							Not yet implemented.

Loss Functions

Count 0/9

NNabla Function	7	9	10	11	13	ONNX Op	Description
SigmoidCrossEntropy							Not yet implemented.
BinaryCrossEntropy							Not yet implemented.
SoftmaxCrossEntropy							Not yet implemented.
CategoricalCrossEntropy							Not yet implemented.
SquaredError							Not yet implemented.
AbsoluteError							Not yet implemented.
HuberLoss							Not yet implemented.
EpsilonInsensitiveLoss							Not yet implemented.
KLMultinomial							Not yet implemented.

Geometric Neural Network Layers

Count 0/3

NNabla Function	7	9	10	11	13	ONNX Op	Description
AffineGrid							Not yet implemented.
WarpByGrid							Not yet implemented.
WarpByFlow							Not yet implemented.

Quantization Neural Network Layers

Count 6/14

NNabla Function	7	9	10	11	13	ONNX Op	Description
BinarySigmoid	X	✓	✓	✓	✓	Constant, Greater, Where
BinaryTanh	X	✓	✓	✓	✓	Constant, Greater, Where
BinaryConnectAffine	✓	✓	✓	✓	✓	Gemm, Reshape
BinaryConnectConvolution	✓	✓	✓	✓	✓	Conv, Reshape
BinaryWeightAffine	✓	✓	✓	✓	✓	Add, MatMul, Mul, Reshape
BinaryWeightConvolution	✓	✓	✓	✓	✓	Add, Conv, Mul, Reshape
INQAffine							Not yet implemented.
INQConvolution							Not yet implemented.
FixedPointQuantize							Not yet implemented.
MinMaxQuantize							Not yet implemented.
Pow2Quantize							Not yet implemented.
Prune							Not yet implemented.
QuantizeLinear							Not yet implemented.
DequantizeLinear							Not yet implemented.

Validation

Count 0/3

NNabla Function	7	9	10	11	13	ONNX Op	Description
TopNError							Not yet implemented.
BinaryError							Not yet implemented.
ConfusionMatrix							Not yet implemented.

Unsupported, Special Use

Count 0/6

NNabla Function	7	9	10	11	13	ONNX Op	Description
VATNoise							Not yet implemented.
Unlink							Not yet implemented.
Sink							Not yet implemented.
NmsDetection2d							Not yet implemented.
MaxPoolingBackward							Not yet implemented.
PatchCorrelation							Not yet implemented.

Tensorflow Support Status

Import

• ✓: Supported

• △: Partially supported

• X: Supported, but test failed.

• Empty: Not support yet.

Total: 111/122

Tensorflow support status

Tensorflow Function	Status	NNabla Func	Description
Abs	✓	Abs
Acos	✓	ACos
Acosh	✓	ACosh
Add	✓	Add2
AddN	✓	AddN
All	✓	Greater, Min, Reshape
Any	✓	Greater, Reshape, Sum
ArgMax	✓	Max
ArgMin	✓	Min
Asin	✓	ASin
Asinh	✓	ASinh
Atan	✓	ATan
Atan2	✓	ATan, Add2, Div2, Mul2, Reshape, Sign, Sub2
Atanh	✓	ATanh
AvgPool	△	AveragePooling, Pad, Transpose
AvgPool3D	△	AveragePooling, Pad, Transpose
BatchMatMul	✓	BatchMatmul, Transpose
BatchNormalization	✓	Add2, Mul2, PowScalar, RDivScalar, Reshape, Sub2
BiasAdd	✓	Add2, Reshape
BroadcastTo	✓
Cast	X	NA	Not yet implemented.
Ceil	✓	Ceil
ClipByValue	✓	Maximum2, Minimum2, Reshape
Concat	✓	Concatenate
ConcatV2	✓	Concatenate
Const	✓	NA
Conv1D	△	Convolution, Pad, Reshape, Transpose
Conv1DTranspose	△	Deconvolution, Reshape, Transpose
Conv2D	△	Convolution, Pad, Transpose
Conv2DBackpropInput	△	Deconvolution, Transpose
Conv3D	△	Convolution, Pad, Transpose
Conv3DBackpropInput	△	Deconvolution, Slice, Transpose
Cos	✓	Cos
Cosh	✓	Cosh
Crelu	✓	Concatenate, MulScalar, ReLU
Cumsum	✓	CumSum
DepthToSpace	△	Reshape, Transpose
DepthwiseConv2d	△	Convolution, Pad, Reshape, Transpose
Div	✓	Div2
Elu	✓	ELU
Equal	✓	Equal
Erf	✓	Erf
Erfc	X		Not yet implemented.
Exp	✓	Exp
ExpandDims	✓	Reshape
Floor	✓	Floor
FloorDiv	✓	Div2, Floor
FloorMod	✓	Div2, Floor, Mul2, Sub2
GatherNd	X		Not yet implemented.
GatherV2	X		Not yet implemented.
Greater	✓	Greater
GreaterEqual	✓	Less, LogicalNot
Identity	✓	Identity
IsInf	✓	IsInf
IsNan	✓	IsNaN
LeakyRelu	✓	LeakyReLU
Less	✓	Less
LessEqual	✓	Greater, LogicalNot
Log	✓	Log
LogSigmoid	✓	MulScalar, SoftPlus
LogSoftmax	✓	Add2, Exp, Log, Max, Reshape, Sub2, Sum, Transpose
LogicalAnd	✓	LogicalAnd
LogicalNot	✓	LogicalNot
LogicalOr	✓	LogicalOr
LogicalXor	✓	LogicalAnd, LogicalNot, LogicalOr
Max	✓	Max
MaxPool	△	MaxPooling, Pad, Reshape, Transpose
MaxPool3D	△	MaxPooling, Pad, Transpose
MaxPoolWithArgmax	X		Not yet implemented.
Maximum	✓	Maximum2
Mean	✓	Mean
Min	✓	Min
Minimum	✓	Minimum2
Mul	✓	Mul2
Neg	✓	MulScalar
NotEqual	✓	Equal, LogicalNot
Pack	✓	Concatenate, Reshape
Pad	△	Pad
Pow	✓	Pow2
Prod	✓	Prod
RealDiv	✓	Div2
Reciprocal	✓	RDivScalar
Relu	✓	ReLU
Relu6	✓	MaximumScalar, MinimumScalar
Reshape	✓	Reshape
ReverseSequence	X		Not yet implemented.
ReverseV2	X		Not yet implemented.
Round	✓	Round
Rsqrt	✓	PowScalar, RDivScalar
Selu	✓	SELU
Shape	X		Not yet implemented.
Sigmoid	✓	Sigmoid
Sign	✓	Sign
Sin	✓	Sin
Sinh	✓	Sinh
Size	X		Not yet implemented.
Slice	✓	Slice
Softmax	✓	Div2, Exp, Max, Reshape, Sub2, Sum, Transpose
Softplus	✓	SoftPlus
Softsign	✓	SoftSign
SpaceToDepth	△	Reshape, Transpose
Split	✓	Split, Stack
SplitV	✓	Split, Stack
Sqrt	✓	PowScalar
Square	✓	Mul2
SquaredDifference	✓	Mul2, Sub2
Squeeze	✓	Reshape
StopGradient	✓	Identity
StridedSlice	△	Slice
Sub	✓	Sub2
Sum	✓	Sum
Swish	✓	Mul2, Sigmoid
Tan	✓	Tan
Tanh	✓	Tanh
Tile	✓	Tile
TopKV2	△	TopKData
Transpose	✓	Transpose
TruncateDiv	X	Div2	Not yet implemented.
TruncateMod	X		Not yet implemented.
Unpack	✓	Reshape, Split, Stack
Where	✓	Add2, LogicalNot, Mul2
ZerosLike	✓	NA

Export

• ✓: Supported

• △: Partially supported

• X: Supported, but test failed.

• Empty: Not support yet.

Total: 125/215

Neural Network Layer

Count 11/18

NNabla Function	Status	Description
Affine	✓
RNN		Not yet implemented.
LSTM		Not yet implemented.
GRU		Not yet implemented.
Convolution	△	The cases dilations and strides larger than 1 are not supported by tensorflow.
FusedConvolution		Not yet implemented.
DepthwiseConvolution	△	The cases dilations and strides larger than 1 are not supported by tensorflow.
Deconvolution	△	The cases dilations larger than 1 are not supported by tensorflow.
DepthwiseDeconvolution	△	The cases dilations larger than 1 are not supported by tensorflow.
DeformableConvolution		Not yet implemented.
AdaptiveSeparableConvolution		Not yet implemented.
MaxPooling	✓
AveragePooling	△	Currently only supports the cases both ignore_border and including_pad are True.
GlobalAveragePooling	✓
SumPooling	✓
Unpooling	△	The kernel only supports 2d.
Embed	✓
RoiAlign		Not yet implemented.

Neural Network Activation Functions

Count 20/22

NNabla Function	Status	Description
Sigmoid	✓
Swish	✓
Tanh	✓
ReLU	✓
LeakyReLU	✓
Softmax	✓
LogSoftmax	✓
ELU	✓
SELU	△
CReLU	✓
CELU	✓
PReLU	✓
GELU	✓
Mish		Not yet implemented.
ReLU6	✓
HardSigmoid	✓
HardTanh	✓
LogSigmoid	✓
SoftPlus	X	Not yet implemented.
SoftSign	✓
TanhShrink	✓
Sinc	✓

Normalization

Count 8/14

NNabla Function	Status	Description
FusedBatchNormalization	✓
BatchNormalization	✓
GroupNormalization	✓
InstanceNormalization	✓
LayerNormalization	✓
NormNormalization		Not yet implemented.
SyncBatchNormalization		Not yet implemented.
TensorNormalization		Not yet implemented.
WeightNormalization	✓
WeightStandardization	✓
SpectralNorm	✓
MeanSubtraction		Not yet implemented.
ClipGradByValue		Not yet implemented.
ClipGradByNorm		Not yet implemented.

Reduction

Count 5/10

NNabla Function	Status	Description
Sum	✓
CumSum		Not yet implemented.
Mean	✓
Max	✓
Min	✓
Norm		Not yet implemented.
Prod	✓
CumProd		Not yet implemented.
ReduceSum		Not yet implemented.
ReduceMean		Not yet implemented.

Arithmetic

Count 11/14

NNabla Function	Status	Description
Add2	✓
AddN		Not yet implemented.
BcAdd2		Not yet implemented.
Sub2	✓
Mul2	✓
MulN		Not yet implemented.
Div2	✓
Pow2	✓
AddScalar	✓
MulScalar	✓
PowScalar	✓
RSubScalar	✓
RDivScalar	✓
RPowScalar	✓

Logical

Count 29/30

NNabla Function	Status	Description
Sign	✓
Minimum2	✓
Maximum2	✓
MinimumScalar	✓
MaximumScalar	✓
LogicalAnd	✓
LogicalOr	✓
LogicalXor	✓
Equal	✓
NotEqual	✓
GreaterEqual	✓
Greater	✓
LessEqual	✓
Less	✓
SearchSorted		Not yet implemented.
LogicalAndScalar	✓
LogicalOrScalar	✓
LogicalXorScalar	✓
EqualScalar	✓
NotEqualScalar	✓
GreaterEqualScalar	✓
GreaterScalar	✓
LessEqualScalar	✓
LessScalar	✓
LogicalNot	✓
IsNaN	✓
IsInf	✓
ResetNaN	✓
ResetInf	✓
Where	✓

Math

Count 22/22

NNabla Function	Status	Description
Constant	✓
Arange	✓
Abs	✓
Exp	✓
Log	✓
Identity	✓
BatchMatmul	✓
Round	✓
Ceil	✓
Floor	✓
Sin	✓
Cos	✓
Tan	✓
Sinh	✓
Cosh	✓
ASin	✓
ACos	✓
ATan	✓
ATan2	✓
ASinh	✓
ACosh	✓
ATanh	✓

Array Manipulation

Count 12/30

NNabla Function	Status	Description
Concatenate	✓
Split	✓
Stack	✓
Slice	✓
Pad	△	When the mode of the pad is reflect, if the size of the pad exceeds the input size, tensorflow cannot handle it.
Transpose	✓
Broadcast	✓
BroadcastTo	✓
Tile	✓
OneHot	✓
Flip	✓
Shift		Not yet implemented.
Sort		Not yet implemented.
Reshape	✓
MatrixDiag		Not yet implemented.
MatrixDiagPart		Not yet implemented.
Meshgrid		Not yet implemented.
BatchDet		Not yet implemented.
BatchInv		Not yet implemented.
BatchLogdet		Not yet implemented.
Assign		Not yet implemented.
Gather		Not yet implemented.
GatherNd		Not yet implemented.
BoolGather		Not yet implemented.
ScatterNd		Not yet implemented.
ScatterAdd		Not yet implemented.
BoolScatter		Not yet implemented.
BoolFill		Not yet implemented.
PackPaddedSequence		Not yet implemented.
PadPackedSequence		Not yet implemented.

Signal Processing

Count 1/5

NNabla Function	Status	Description
Interpolate	△
FFT		Not yet implemented.
IFFT		Not yet implemented.
STFT		Not yet implemented.
ISTFT		Not yet implemented.

Stochasticity

Count 0/15

NNabla Function	Status	Description
Dropout	X	The Dropout in nnabla has no test mode and contains random parameters, so the test result is not the same as tensorflow.
TopKData		Not yet implemented.
TopKGrad		Not yet implemented.
Rand		Not yet implemented.
Randint		Not yet implemented.
Randn		Not yet implemented.
RandBinomial		Not yet implemented.
RandBeta		Not yet implemented.
RandGamma		Not yet implemented.
RandomChoice		Not yet implemented.
RandomCrop		Not yet implemented.
RandomFlip		Not yet implemented.
RandomShift		Not yet implemented.
RandomErase		Not yet implemented.
ImageAugmentation		Not yet implemented.

Loss Functions

Count 0/9

NNabla Function	Status	Description
SigmoidCrossEntropy		Not yet implemented.
BinaryCrossEntropy		Not yet implemented.
SoftmaxCrossEntropy		Not yet implemented.
CategoricalCrossEntropy		Not yet implemented.
SquaredError		Not yet implemented.
AbsoluteError		Not yet implemented.
HuberLoss		Not yet implemented.
EpsilonInsensitiveLoss		Not yet implemented.
KLMultinomial		Not yet implemented.

Geometric Neural Network Layers

Count 0/3

NNabla Function	Status	Description
AffineGrid		Not yet implemented.
WarpByGrid		Not yet implemented.
WarpByFlow		Not yet implemented.

Quantization Neural Network Layers

Count 6/14

NNabla Function	Status	Description
BinarySigmoid	✓
BinaryTanh	✓
BinaryConnectAffine	✓
BinaryConnectConvolution	△	The cases dilations and strides larger than 1 are not supported by tensorflow.
BinaryWeightAffine	✓
BinaryWeightConvolution	△	The cases dilations and strides larger than 1 are not supported by tensorflow.
INQAffine		Not yet implemented.
INQConvolution		Not yet implemented.
FixedPointQuantize		Not yet implemented.
MinMaxQuantize		Not yet implemented.
Pow2Quantize		Not yet implemented.
Prune		Not yet implemented.
QuantizeLinear		Not yet implemented.
DequantizeLinear		Not yet implemented.

Validation

Count 0/3

NNabla Function	Status	Description
TopNError		Not yet implemented.
BinaryError		Not yet implemented.
ConfusionMatrix		Not yet implemented.

Unsupported, Special Use

Count 0/6

NNabla Function	Status	Description
VATNoise		Not yet implemented.
Unlink		Not yet implemented.
Sink		Not yet implemented.
NmsDetection2d		Not yet implemented.
MaxPoolingBackward		Not yet implemented.
PatchCorrelation		Not yet implemented.

Tensorflow Lite Support Status

Export

• ✓: Supported

• △: Partially supported

• X: Supported, but test failed.

• Empty: Not support yet.

Total: 83/215

Neural Network Layer

Count 11/18

NNabla Function	Status
Affine	✓
RNN
LSTM
GRU
Convolution	△
FusedConvolution
DepthwiseConvolution	✓
Deconvolution	△
DepthwiseDeconvolution	△
DeformableConvolution
AdaptiveSeparableConvolution
MaxPooling	△
AveragePooling	△
GlobalAveragePooling	✓
SumPooling	△
Unpooling	△
Embed	✓
RoiAlign

Neural Network Activation Functions

Count 10/22

NNabla Function	Status
Sigmoid	✓
Swish	✓
Tanh	✓
ReLU	✓
LeakyReLU	✓
Softmax	✓
LogSoftmax	✓
ELU	△
SELU	X
CReLU	X
CELU	X
PReLU	✓
GELU	X
Mish
ReLU6	✓
HardSigmoid	X
HardTanh	X
LogSigmoid	X
SoftPlus	X
SoftSign	X
TanhShrink	X
Sinc	X

Normalization

Count 2/14

NNabla Function	Status
FusedBatchNormalization	△
BatchNormalization	✓
GroupNormalization	X
InstanceNormalization	X
LayerNormalization	X
NormNormalization
SyncBatchNormalization
TensorNormalization
WeightNormalization	X
WeightStandardization	X
SpectralNorm	X
MeanSubtraction
ClipGradByValue
ClipGradByNorm

Reduction

Count 5/10

NNabla Function	Status
Sum	✓
CumSum
Mean	✓
Max	✓
Min	✓
Norm
Prod	✓
CumProd
ReduceSum
ReduceMean

Arithmetic

Count 11/14

NNabla Function	Status
Add2	✓
AddN
BcAdd2
Sub2	✓
Mul2	✓
MulN
Div2	✓
Pow2	✓
AddScalar	✓
MulScalar	✓
PowScalar	✓
RSubScalar	✓
RDivScalar	✓
RPowScalar	✓

Logical

Count 23/30

NNabla Function	Status
Sign	X
Minimum2	✓
Maximum2	✓
MinimumScalar	✓
MaximumScalar	✓
LogicalAnd	✓
LogicalOr	✓
LogicalXor	✓
Equal	✓
NotEqual	✓
GreaterEqual	✓
Greater	✓
LessEqual	✓
Less	✓
SearchSorted
LogicalAndScalar	✓
LogicalOrScalar	✓
LogicalXorScalar	✓
EqualScalar	✓
NotEqualScalar	✓
GreaterEqualScalar	✓
GreaterScalar	✓
LessEqualScalar	✓
LessScalar	✓
LogicalNot	✓
IsNaN	X
IsInf	X
ResetNaN	X
ResetInf	X
Where	X

Math

Count 10/22

NNabla Function	Status
Constant	X
Arange	X
Abs	✓
Exp	✓
Log	✓
Identity	X
BatchMatmul	✓
Round	✓
Ceil	✓
Floor	✓
Sin	✓
Cos	✓
Tan	✓
Sinh	X
Cosh	X
ASin	X
ACos	X
ATan	X
ATan2	X
ASinh	X
ACosh	X
ATanh	X

Array Manipulation

Count 10/30

NNabla Function	Status
Concatenate	✓
Split	✓
Stack	✓
Slice	△
Pad	△
Transpose	✓
Broadcast	△
BroadcastTo	X
Tile	✓
OneHot	X
Flip	✓
Shift
Sort
Reshape	✓
MatrixDiag
MatrixDiagPart
Meshgrid
BatchDet
BatchInv
BatchLogdet
Assign
Gather
GatherNd
BoolGather
ScatterNd
ScatterAdd
BoolScatter
BoolFill
PackPaddedSequence
PadPackedSequence

Signal Processing

Count 1/5

NNabla Function	Status
Interpolate	△
FFT
IFFT
STFT
ISTFT

Stochasticity

Count 0/15

NNabla Function	Status
Dropout	X
TopKData
TopKGrad
Rand
Randint
Randn
RandBinomial
RandBeta
RandGamma
RandomChoice
RandomCrop
RandomFlip
RandomShift
RandomErase
ImageAugmentation

Loss Functions

Count 0/9

NNabla Function	Status
SigmoidCrossEntropy
BinaryCrossEntropy
SoftmaxCrossEntropy
CategoricalCrossEntropy
SquaredError
AbsoluteError
HuberLoss
EpsilonInsensitiveLoss
KLMultinomial

Geometric Neural Network Layers

Count 0/3

NNabla Function	Status
AffineGrid
WarpByGrid
WarpByFlow

Quantization Neural Network Layers

Count 0/14

NNabla Function	Status
BinarySigmoid	X
BinaryTanh	X
BinaryConnectAffine	X
BinaryConnectConvolution	X
BinaryWeightAffine	X
BinaryWeightConvolution	X
INQAffine
INQConvolution
FixedPointQuantize
MinMaxQuantize
Pow2Quantize
Prune
QuantizeLinear
DequantizeLinear

Validation

Count 0/3

NNabla Function	Status
TopNError
BinaryError
ConfusionMatrix

Unsupported, Special Use

Count 0/6

NNabla Function	Status
VATNoise
Unlink
Sink
NmsDetection2d
MaxPoolingBackward
PatchCorrelation

NNabla C Runtime Support Status

NNabla version: None

• ✓: Supported

• △: Partially supported

• X: Supported, but test failed or no test data.

• Empty: Not support yet.

Export

Total: 56/215

Neural Network Layer

Count 8/18

NNabla Function	Status	Description
Affine	✓
RNN
LSTM
GRU
Convolution	✓
FusedConvolution
DepthwiseConvolution	✓
Deconvolution	✓
DepthwiseDeconvolution
DeformableConvolution
AdaptiveSeparableConvolution
MaxPooling	✓
AveragePooling	✓
GlobalAveragePooling
SumPooling	✓
Unpooling	✓
Embed
RoiAlign

Neural Network Activation Functions

Count 11/22

NNabla Function	Status	Description
Sigmoid	✓
Swish	✓
Tanh	✓
ReLU	✓
LeakyReLU	✓
Softmax	✓
LogSoftmax
ELU	✓
SELU	✓
CReLU	✓
CELU	✓
PReLU	✓
GELU
Mish
ReLU6
HardSigmoid
HardTanh
LogSigmoid
SoftPlus
SoftSign
TanhShrink
Sinc

Normalization

Count 1/14

NNabla Function	Status	Description
FusedBatchNormalization
BatchNormalization	✓
GroupNormalization
InstanceNormalization
LayerNormalization
NormNormalization
SyncBatchNormalization
TensorNormalization	X
WeightNormalization
WeightStandardization
SpectralNorm
MeanSubtraction	X
ClipGradByValue
ClipGradByNorm

Reduction

Count 1/10

NNabla Function	Status	Description
Sum	✓
CumSum
Mean
Max
Min
Norm
Prod
CumProd
ReduceSum
ReduceMean

Arithmetic

Count 11/14

NNabla Function	Status	Description
Add2	✓
AddN	X
BcAdd2
Sub2	✓
Mul2	✓
MulN	X
Div2	✓
Pow2	✓
AddScalar	✓
MulScalar	✓
PowScalar	✓
RSubScalar	✓
RDivScalar	✓
RPowScalar	✓

Logical

Count 5/30

NNabla Function	Status	Description
Sign	✓
Minimum2	✓
Maximum2	✓
MinimumScalar	✓
MaximumScalar	✓
LogicalAnd
LogicalOr
LogicalXor
Equal
NotEqual
GreaterEqual
Greater
LessEqual
Less
SearchSorted
LogicalAndScalar
LogicalOrScalar
LogicalXorScalar
EqualScalar
NotEqualScalar
GreaterEqualScalar
GreaterScalar
LessEqualScalar
LessScalar
LogicalNot
IsNaN
IsInf
ResetNaN
ResetInf
Where

Math

Count 6/22

NNabla Function	Status	Description
Constant
Arange
Abs	✓
Exp	✓
Log	✓
Identity	✓
BatchMatmul	△
Round	✓
Ceil
Floor
Sin
Cos
Tan
Sinh
Cosh
ASin
ACos
ATan
ATan2
ASinh
ACosh
ATanh

Array Manipulation

Count 7/30

NNabla Function	Status	Description
Concatenate	✓
Split	✓
Stack	✓
Slice	✓
Pad
Transpose	✓
Broadcast
BroadcastTo
Tile
OneHot
Flip	✓
Shift	X
Sort
Reshape	✓
MatrixDiag	X
MatrixDiagPart	X
Meshgrid
BatchDet
BatchInv
BatchLogdet
Assign
Gather
GatherNd
BoolGather
ScatterNd
ScatterAdd
BoolScatter
BoolFill
PackPaddedSequence
PadPackedSequence

Signal Processing

Count 0/5

NNabla Function	Status	Description
Interpolate
FFT
IFFT
STFT
ISTFT

Stochasticity

Count 0/15

NNabla Function	Status	Description
Dropout	X
TopKData
TopKGrad
Rand
Randint
Randn
RandBinomial
RandBeta
RandGamma
RandomChoice
RandomCrop
RandomFlip
RandomShift
RandomErase
ImageAugmentation

Loss Functions

Count 0/9

NNabla Function	Status	Description
SigmoidCrossEntropy
BinaryCrossEntropy
SoftmaxCrossEntropy
CategoricalCrossEntropy
SquaredError
AbsoluteError
HuberLoss
EpsilonInsensitiveLoss
KLMultinomial

Geometric Neural Network Layers

Count 0/3

NNabla Function	Status	Description
AffineGrid
WarpByGrid
WarpByFlow

Quantization Neural Network Layers

Count 6/14

NNabla Function	Status	Description
BinarySigmoid	✓
BinaryTanh	✓
BinaryConnectAffine	✓
BinaryConnectConvolution	✓
BinaryWeightAffine	✓
BinaryWeightConvolution	✓
INQAffine
INQConvolution
FixedPointQuantize
MinMaxQuantize
Pow2Quantize
Prune
QuantizeLinear
DequantizeLinear

Validation

Count 0/3

NNabla Function	Status	Description
TopNError
BinaryError
ConfusionMatrix

Unsupported, Special Use

Count 0/6

NNabla Function	Status	Description
VATNoise
Unlink
Sink
NmsDetection2d
MaxPoolingBackward
PatchCorrelation