/// <summary>
/// Creates new array
/// </summary>
/// <param name="shape">shape</param>
public BurstTensorData(TensorShape shape) : base(shape)
{
}
public virtual IEnumerator StartManualSchedule()
{
Profiler.BeginSample("Barracuda.Execute");
ResetAllocatorIfRequested();
m_Vars.PrepareStorage(m_Model, m_Ops, m_InputShapes);
if (m_ModelCompiler != null)
{
m_ModelCompiler.PrepareModel(m_Model, m_InputShapes);
}
int idx = 0;
foreach (var l in m_Model.layers)
{
idx++;
m_Progress = idx / (float)m_Model.layers.Count;
Profiler.BeginSample(l.name);
var inputs = m_Vars.GatherInputs(l);
Tensor X = inputs.Length > 0 ? inputs[0] : m_DummyInput;
if (m_Verbose)
{
D.Log("Layer: " + l.type + ((l.type == Layer.Type.Activation) ? ("." + l.activation) : "") + " " + l.name);
}
m_Vars.PrepareStorage(l);
if (m_ModelCompiler != null)
{
m_ModelCompiler.PreExecuteLayer(l, inputs);
}
// No operation, identity
if (l.type == Layer.Type.Nop)
{
Profiler.BeginSample("Barracuda.Nop");
X = m_Ops.Copy(X);
}
// Load const
else if (l.type == Layer.Type.Load)
{
Profiler.BeginSample("Barracuda.Load");
}
// GEMM
else if (l.type == Layer.Type.Dense)
{
Assert.AreEqual(inputs.Length, 3);
Profiler.BeginSample("Barracuda.Dense");
X = m_Ops.Dense(X, inputs[1], inputs[2], GetAndVerifyFusedActivation(l));
}
// 2D
else if (l.type == Layer.Type.Conv2D)
{
Assert.AreEqual(inputs.Length, 3);
Profiler.BeginSample("Barracuda.Conv2D");
var pad = X.AdjustPadToKernel(inputs[1], l.stride, l.pad);
X = m_Ops.Conv2D(X, inputs[1], inputs[2], l.stride, pad, GetAndVerifyFusedActivation(l));
}
else if (l.type == Layer.Type.DepthwiseConv2D)
{
Assert.AreEqual(inputs.Length, 3);
Profiler.BeginSample("Barracuda.DepthwiseConv2D");
var pad = X.AdjustPadToKernel(inputs[1], l.stride, l.pad);
X = m_Ops.DepthwiseConv2D(X, inputs[1], inputs[2], l.stride, pad, GetAndVerifyFusedActivation(l));
}
else if (l.type == Layer.Type.Conv2DTrans)
{
Assert.AreEqual(inputs.Length, 3);
Profiler.BeginSample("Barracuda.Conv2DTrans");
// pool size is treated as output_adjustment aka output_padding here
var outputAdjustment = l.pool;
var pad = X.AdjustPadToKernel(inputs[1], l.stride, l.pad);
X = m_Ops.Conv2DTrans(X, inputs[1], inputs[2], l.stride, pad, outputAdjustment, GetAndVerifyFusedActivation(l));
}
else if (l.type == Layer.Type.Upsample2D)
{
Profiler.BeginSample("Barracuda.Upsample2D");
// pool size is treated as upsample scale coefficient here
var scale = l.pool;
// axis is treated as upsample point/bilinear flag
var bilinear = l.axis > 0;
if (scale.Length == 0 && inputs.Length > 1)
{
var scaleTensor = inputs[1];
Assert.AreEqual(scaleTensor.length, 4);
scale = new int[] { (int)scaleTensor[2], (int)scaleTensor[1] };
}
X = m_Ops.Upsample2D(X, scale, bilinear);
}
else if (l.type == Layer.Type.Resample2D)
{
Profiler.BeginSample("Barracuda.Resample2D");
// pool size is treated as resample size here
var size = l.pool;
// axis is treated as upsample point/bilinear flag
var bilinear = l.axis > 0;
if (inputs.Length > 1)
{
var sizeTensor = inputs[1];
Assert.AreEqual(sizeTensor.length, 4);
size = new int[] { (int)sizeTensor[2], (int)sizeTensor[1] };
}
X = m_Ops.Resample2D(X, size, bilinear);
}
else if (l.type == Layer.Type.DepthToSpace)
{
Profiler.BeginSample("Barracuda.DepthToSpace");
// pool size is treated as blocksize
var blocksize = l.pool;
// axis is treated as mode enum
var mode = (Layer.DepthToSpaceMode)l.axis;
X = m_Ops.DepthToSpace(X, blocksize, mode);
}
else if (l.type == Layer.Type.SpaceToDepth)
{
Profiler.BeginSample("Barracuda.SpaceToDepth");
// pool size is treated as blocksize
var blocksize = l.pool;
X = m_Ops.SpaceToDepth(X, blocksize);
}
else if (l.type == Layer.Type.MaxPool2D)
{
Profiler.BeginSample("Barracuda.MaxPool2D");
var pad = X.AdjustPadToPool(l.pool, l.stride, l.pad);
X = m_Ops.MaxPool2D(X, l.pool, l.stride, pad);
}
else if (l.type == Layer.Type.AvgPool2D)
{
Profiler.BeginSample("Barracuda.AvgPool2D");
var pad = X.AdjustPadToPool(l.pool, l.stride, l.pad);
X = m_Ops.AvgPool2D(X, l.pool, l.stride, pad);
}
else if (l.type == Layer.Type.GlobalMaxPool2D)
{
Profiler.BeginSample("Barracuda.GlobalMaxPool2D");
X = m_Ops.GlobalMaxPool2D(X);
}
else if (l.type == Layer.Type.GlobalAvgPool2D)
{
Profiler.BeginSample("Barracuda.GlobalAvgPool2D");
X = m_Ops.GlobalAvgPool2D(X);
}
else if (l.type == Layer.Type.Border2D)
{
Profiler.BeginSample("Barracuda.Border2D");
Assert.IsNotNull(l.pad);
// NOTE: beta is used to retrieve fillin value
// because beta is 0 by default (while alpha is 1 by default)
// 0 value is more inline with zero padding
float fillValue = l.beta;
X = m_Ops.Border2D(X, l.pad, fillValue);
}
else if (l.type == Layer.Type.Pad2DReflect)
{
Profiler.BeginSample("Barracuda.Pad2DReflect");
Assert.IsNotNull(l.pad);
X = m_Ops.Pad2DReflect(X, l.pad);
}
else if (l.type == Layer.Type.Pad2DSymmetric)
{
Profiler.BeginSample("Barracuda.Pad2DSymmetric");
Assert.IsNotNull(l.pad);
X = m_Ops.Pad2DSymmetric(X, l.pad);
}
else if (l.type == Layer.Type.Pad2DEdge)
{
Profiler.BeginSample("Barracuda.Pad2DEdge");
Assert.IsNotNull(l.pad);
X = m_Ops.Pad2DEdge(X, l.pad);
}
// 3D
else if (l.type == Layer.Type.Conv3D ||
l.type == Layer.Type.Conv3DTrans ||
l.type == Layer.Type.Upsample3D ||
l.type == Layer.Type.MaxPool3D ||
l.type == Layer.Type.AvgPool3D ||
l.type == Layer.Type.GlobalMaxPool3D ||
l.type == Layer.Type.GlobalAvgPool3D ||
l.type == Layer.Type.Border3D)
{
throw new NotImplementedException("3D operations are not implemented yet!");
}
else if (l.type == Layer.Type.ScaleBias)
{
Assert.AreEqual(inputs.Length, 3);
Profiler.BeginSample("Barracuda.ScaleBias");
X = m_Ops.ScaleBias(X, inputs[1], inputs[2]);
}
else if (l.type == Layer.Type.Normalization)
{
Assert.AreEqual(inputs.Length, 3);
Profiler.BeginSample("Barracuda.Normalization");
// @TODO: support other types of Normalization at test time.
// Currently supported only pool=1 (InstanceNormalization)
// NOTE: beta is used to retrieve epsilon value
// because beta is 0 by default (while alpha is 1 by default)
// 0 value is more inline with very small epsilon
var epsilon = l.beta;
if (epsilon == 0)
{
epsilon = Mathf.Epsilon; // safety check to prevent division by zero
}
X = m_Ops.Normalization(X, inputs[1], inputs[2], 1, l.axis, epsilon, GetAndVerifyFusedActivation(l));
}
else if (l.type == Layer.Type.LRN)
{
Profiler.BeginSample("Barracuda.LRN");
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 1);
int count = l.pool[0];
float bias = (l.weights.Length > 0) ? l.weights[0] : 1.0f;
X = m_Ops.LRN(X, l.alpha, l.beta, bias, count);
}
// Stochastic layers
else if (l.type == Layer.Type.Dropout)
{
Profiler.BeginSample("Barracuda.Dropout");
X = m_Ops.Dropout(X, l.alpha);
}
else if (l.type == Layer.Type.RandomNormal)
{
Profiler.BeginSample("Barracuda.RandomNormal");
Assert.IsNotNull(l.pool);
// pool size is treated as shape constant, if not empty
// otherwise shape of the previous tensor is used
var shape = X.shape;
if (l.pool.Length > 0)
{
shape = new TensorShape(l.pool);
}
int seed = (l.pad.Length > 0) ? l.pad[0] : 1337;
float scale = l.alpha, mean = l.beta;
X = m_Ops.RandomNormal(shape, mean, scale, seed);
}
else if (l.type == Layer.Type.RandomUniform)
{
Profiler.BeginSample("Barracuda.RandomUniform");
Assert.IsNotNull(l.pool);
// pool size is treated as shape constant, if not empty
// otherwise shape of the previous tensor is used
var shape = X.shape;
if (l.pool.Length > 0)
{
shape = new TensorShape(l.pool);
}
int seed = (l.pad.Length > 0) ? l.pad[0] : 1337;
float scale = l.alpha, mean = l.beta;
X = m_Ops.RandomUniform(shape, mean, scale, seed);
}
else if (l.type == Layer.Type.Multinomial)
{
Profiler.BeginSample("Barracuda.Multinomial");
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 1);
int count = l.pool[0];
int seed = (l.pad.Length > 0) ? l.pad[0] : 1337;
X = m_Ops.Multinomial(X, count, seed);
}
else if (l.type == Layer.Type.OneHot)
{
Profiler.BeginSample("Barracuda.OneHot");
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 1);
int depth = l.pool[0];
float on = l.alpha, off = l.beta;
X = m_Ops.OneHot(X, depth, on, off);
}
// Broadcast layers
else if (l.type == Layer.Type.Add)
{
Profiler.BeginSample("Barracuda.Add");
X = m_Ops.Add(inputs);
}
else if (l.type == Layer.Type.Sub)
{
Profiler.BeginSample("Barracuda.Sub");
X = m_Ops.Sub(inputs);
}
else if (l.type == Layer.Type.Mul)
{
Profiler.BeginSample("Barracuda.Mul");
X = m_Ops.Mul(inputs);
}
else if (l.type == Layer.Type.Div)
{
Profiler.BeginSample("Barracuda.Div");
X = m_Ops.Div(inputs);
}
else if (l.type == Layer.Type.Pow)
{
Profiler.BeginSample("Barracuda.Pow");
X = m_Ops.Pow(inputs);
}
else if (l.type == Layer.Type.Min)
{
Profiler.BeginSample("Barracuda.Min");
X = m_Ops.Min(inputs);
}
else if (l.type == Layer.Type.Max)
{
Profiler.BeginSample("Barracuda.Max");
X = m_Ops.Max(inputs);
}
else if (l.type == Layer.Type.Mean)
{
Profiler.BeginSample("Barracuda.Mean");
X = m_Ops.Mean(inputs);
}
// Reduction layers
else if (l.type == Layer.Type.ReduceMax)
{
Profiler.BeginSample("Barracuda.ReduceMax");
X = m_Ops.ReduceMax(X, l.axis);
}
else if (l.type == Layer.Type.ReduceMean)
{
Profiler.BeginSample("Barracuda.ReduceMean");
X = m_Ops.ReduceMean(X, l.axis);
}
else if (l.type == Layer.Type.ReduceMin)
{
Profiler.BeginSample("Barracuda.ReduceMin");
X = m_Ops.ReduceMin(X, l.axis);
}
else if (l.type == Layer.Type.ReduceProd)
{
Profiler.BeginSample("Barracuda.ReduceProd");
X = m_Ops.ReduceProd(X, l.axis);
}
else if (l.type == Layer.Type.ReduceSum)
{
Profiler.BeginSample("Barracuda.ReduceSum");
X = m_Ops.ReduceSum(X, l.axis);
}
else if (
l.type == Layer.Type.ReduceL1 ||
l.type == Layer.Type.ReduceL2 ||
l.type == Layer.Type.ReduceLogSum ||
l.type == Layer.Type.ReduceLogSumExp ||
l.type == Layer.Type.ReduceSumSquare)
{
throw new NotImplementedException("This reduction operation is not implemented yet!");
}
// Logical operators with broadcast
else if (l.type == Layer.Type.Greater)
{
Assert.AreEqual(inputs.Length, 2);
Profiler.BeginSample("Barracuda.Greater");
X = m_Ops.Greater(X, inputs[1]);
}
else if (l.type == Layer.Type.GreaterEqual)
{
Assert.AreEqual(inputs.Length, 2);
Profiler.BeginSample("Barracuda.GreaterEqual");
X = m_Ops.GreaterEqual(X, inputs[1]);
}
else if (l.type == Layer.Type.Less)
{
Assert.AreEqual(inputs.Length, 2);
Profiler.BeginSample("Barracuda.Less");
X = m_Ops.Less(X, inputs[1]);
}
else if (l.type == Layer.Type.LessEqual)
{
Assert.AreEqual(inputs.Length, 2);
Profiler.BeginSample("Barracuda.LessEqual");
X = m_Ops.LessEqual(X, inputs[1]);
}
else if (l.type == Layer.Type.Equal)
{
Assert.AreEqual(inputs.Length, 2);
Profiler.BeginSample("Barracuda.Equal");
X = m_Ops.Equal(X, inputs[1]);
}
else if (l.type == Layer.Type.LogicalOr)
{
Assert.AreEqual(inputs.Length, 2);
Profiler.BeginSample("Barracuda.LogicalOr");
X = m_Ops.LogicalOr(X, inputs[1]);
}
else if (l.type == Layer.Type.LogicalAnd)
{
Assert.AreEqual(inputs.Length, 2);
Profiler.BeginSample("Barracuda.LogicalAnd");
X = m_Ops.LogicalAnd(X, inputs[1]);
}
else if (l.type == Layer.Type.LogicalXor)
{
Assert.AreEqual(inputs.Length, 2);
Profiler.BeginSample("Barracuda.LogicalXor");
X = m_Ops.LogicalXor(X, inputs[1]);
}
else if (l.type == Layer.Type.LogicalNot)
{
Profiler.BeginSample("Barracuda.LogicalNot");
X = m_Ops.LogicalNot(X);
}
// Shape affecting layers
else if (l.type == Layer.Type.Flatten)
{
Profiler.BeginSample("Barracuda.Flatten");
X = m_Ops.Flatten(X);
}
else if (l.type == Layer.Type.Reshape)
{
Profiler.BeginSample("Barracuda.Reshape");
// pool size is treated as reshape coefficient, if not empty
// otherwise shape of the 2nd input tensor is used
var size = l.pool;
Assert.IsNotNull(size);
if (size.Length == 0 && inputs.Length > 1)
{
size = inputs[1].shape.ToArray();
}
var newShape = X.shape.Reshape(size);
X = m_Ops.Reshape(X, newShape);
}
else if (l.type == Layer.Type.Expand)
{
Profiler.BeginSample("Barracuda.Expand");
// pool size is treated as new shape
var newShape = l.pool;
Assert.IsNotNull(newShape);
Assert.AreEqual(newShape.Length, 4);
X = m_Ops.Expand(X, new TensorShape(newShape));
}
else if (l.type == Layer.Type.Transpose)
{
Profiler.BeginSample("Barracuda.Transpose");
X = m_Ops.Transpose(X);
}
else if (l.type == Layer.Type.Gather)
{
Profiler.BeginSample("Barracuda.Gather");
X = m_Ops.Gather(inputs, l.axis);
}
else if (l.type == Layer.Type.Squeeze ||
l.type == Layer.Type.Unsqueeze)
{
throw new NotImplementedException();
}
else if (l.type == Layer.Type.Concat)
{
Profiler.BeginSample("Barracuda.Concat");
X = m_Ops.Concat(inputs, l.axis);
}
else if (l.type == Layer.Type.StridedSlice)
{
Profiler.BeginSample("Barracuda.StridedSlice");
Assert.IsNotNull(l.pad);
Assert.IsNotNull(l.pool);
Assert.IsNotNull(l.stride);
X = m_Ops.StridedSlice(X, l.pad, l.pool, l.stride);
}
else if (l.type == Layer.Type.Tile)
{
throw new NotImplementedException();
}
// Activations
else if (l.type == Layer.Type.Activation)
{
Profiler.BeginSample("Barracuda.Activation");
if (l.activation == Layer.Activation.Relu)
{
X = m_Ops.Relu(X);
}
else if (l.activation == Layer.Activation.Softmax)
{
X = m_Ops.Softmax(X);
}
else if (l.activation == Layer.Activation.LogSoftmax)
{
X = m_Ops.LogSoftmax(X);
}
else if (l.activation == Layer.Activation.Tanh)
{
X = m_Ops.Tanh(X);
}
else if (l.activation == Layer.Activation.Sigmoid)
{
X = m_Ops.Sigmoid(X);
}
else if (l.activation == Layer.Activation.Relu6)
{
X = m_Ops.Relu6(X);
}
else if (l.activation == Layer.Activation.Elu)
{
X = m_Ops.Elu(X, l.alpha);
}
else if (l.activation == Layer.Activation.LeakyRelu)
{
X = m_Ops.LeakyRelu(X, l.alpha);
}
else if (l.activation == Layer.Activation.Selu)
{
X = m_Ops.Selu(X, l.alpha, l.beta);
}
else if (l.activation == Layer.Activation.Swish)
{
X = m_Ops.Swish(X);
}
else if (l.activation == Layer.Activation.PRelu)
{
Assert.AreEqual(inputs.Length, 2);
X = m_Ops.PRelu(X, inputs[1]);
}
else if (
l.activation == Layer.Activation.Softplus ||
l.activation == Layer.Activation.Softsign ||
l.activation == Layer.Activation.Hardmax ||
l.activation == Layer.Activation.HardSigmoid)
{
throw new NotImplementedException("This activation function is not implemented yet!");
}
else if (l.activation == Layer.Activation.Abs)
{
X = m_Ops.Abs(X);
}
else if (l.activation == Layer.Activation.Neg)
{
X = m_Ops.Neg(X);
}
else if (l.activation == Layer.Activation.Ceil)
{
X = m_Ops.Ceil(X);
}
else if (l.activation == Layer.Activation.Clip)
{
X = m_Ops.Clip(X, l.alpha, l.beta);
}
else if (l.activation == Layer.Activation.Floor)
{
X = m_Ops.Floor(X);
}
else if (l.activation == Layer.Activation.Reciprocal)
{
X = m_Ops.Reciprocal(X);
}
else if (l.activation == Layer.Activation.Pow)
{
X = m_Ops.Pow(X, l.alpha);
}
else if (l.activation == Layer.Activation.Exp)
{
X = m_Ops.Exp(X);
}
else if (l.activation == Layer.Activation.Log)
{
X = m_Ops.Log(X);
}
else if (l.activation == Layer.Activation.Sqrt)
{
X = m_Ops.Sqrt(X);
}
else if ((int)l.activation >= (int)Layer.Activation.Acos &&
(int)l.activation <= (int)Layer.Activation.Tan)
{
throw new NotImplementedException("Trig functions are not implemented yet!");
}
else
{
X = m_Ops.Copy(X);
}
}
else
{
Profiler.BeginSample("Barracuda.Dummy");
Assert.AreEqual(l.activation, Layer.Activation.None);
}
m_Vars.Store(l, X);
m_SyncTensor = X;
// optype
Profiler.EndSample();
// layer.name
Profiler.EndSample();
yield return(null);
}
// request ResetAllocator before next Execute() starts
m_RequestResetAllocator = true;
Profiler.EndSample();
if (m_Verbose)
{
D.Log(m_Vars.GetAllocator());
}
}
/// <summary>
/// Apply shape to the input tensor. Number of elements in the shape must match number of elements in input tensor.
/// </summary>
public Layer Reshape(string name, object input, TensorShape shape)
{
return(Reshape(name, input, shape.ToArray()));
}
/// <summary>
/// Upload data to internal storage
/// </summary>
/// <param name="data">data</param>
/// <param name="shape">shape</param>
/// <param name="managedBufferStartIndex">`data` start index</param>
public override void Upload(float[] data, TensorShape shape, int managedBufferStartIndex = 0)
{
CompleteAllPendingOperations();
base.Upload(data, shape, managedBufferStartIndex);
}
static internal TensorShape ApplyPool(this TensorShape shape, int[] pool, int[] stride, int[] pad, bool ceilMode = false)
{
return(ApplyPool(shape, (pool[0], pool[1]), stride, pad, ceilMode));
}
static internal TensorShape ApplyKernel(this TensorShape shape, TensorShape kernel, int[] stride, int[] pad)
{
int[] shapeArray = ApplyPool(shape, (kernel.kernelWidth, kernel.kernelHeight), stride, pad).ToArray();
shapeArray[7] = kernel.kernelCount;
return(new TensorShape(shapeArray));
}
static internal int[] AdjustPadToKernel(this TensorShape shape, TensorShape kernel, int[] stride, int[] pad)
{
return(AdjustPadToPool(shape, (kernel.kernelWidth, kernel.kernelHeight), stride, pad));
}
static internal int[] AdjustPadToPool(this TensorShape shape, int[] pool, int[] stride, int[] pad)
{
return(AdjustPadToPool(shape, (pool[0], pool[1]), stride, pad));
}
/// <summary>
/// Reshape TensorShape into new shape specified by `size`. At most one dimension of the new shape can be -1.
/// See: https://github.com/onnx/onnx/blob/master/docs/Operators.md#Reshape
/// </summary>
/// <param name="shape">TensorShape</param>
/// <param name="size">new shape</param>
/// <returns>output shape</returns>
/// <exception cref="ArgumentException">more than one dimension is unspecified</exception>
static public TensorShape Reshape(this TensorShape shape, int[] size)
{
size = Get8DParametersFromNHWCParametersAndShape(shape, size, 1);
var newShapeArray = shape.ToArray();
// From: https://github.com/onnx/onnx/blob/master/docs/Operators.md#Reshape
//
// At most one dimension of the new shape can be -1.
// In this case, the value is inferred from the size of the tensor and the remaining dimensions.
//
// A dimension could also be 0,
// in which case the actual dimension value is unchanged (i.e. taken from the input tensor).
var multipleOf = 1;
var unknownIndex = -1;
for (int q = 0; q < size.Length; ++q)
{
if (size[q] > 0)
{
multipleOf *= size[q];
newShapeArray[q] = size[q];
}
else if (size[q] == 0)
{
multipleOf *= newShapeArray[q];
}
else if (unknownIndex == -1)
{
unknownIndex = q;
}
else
{
throw new ArgumentException("Can only specify one unknown dimension");
}
}
if (unknownIndex == -1)
{
// all dimensions are given
var newShape = new TensorShape(newShapeArray);
if (shape.length != newShape.length)
{
throw new ArgumentException("Cannot reshape array of size " + shape.length +
" into shape " + newShape);
}
return(newShape);
}
var solveForIndex = shape.length / multipleOf;
bool remainderLeft = shape.length % multipleOf != 0;
if (remainderLeft)
{
throw new ArgumentException("Cannot reshape array of size " + shape.length +
" into shape with multiple of " + multipleOf + " elements");
}
newShapeArray[unknownIndex] = solveForIndex;
return(new TensorShape(newShapeArray));
}
public static TensorShape?[] ListTemporaryTensorShapes(Model model, IDictionary <string, TensorShape> inputShapes,
out IDictionary <string, TensorShape?> shapesByName)
{
Profiler.BeginSample("Barracuda.ListTemporaryTensorShapes");
var shapes = new List <TensorShape?>();
shapesByName = new Dictionary <string, TensorShape?>();
foreach (var entry in inputShapes)
{
shapesByName.Add(entry.Key, entry.Value);
}
TensorShape?Xn;
shapesByName.TryGetValue(GetDefaultInputName(model), out Xn); // default input
TensorShape?O = Xn;
foreach (var l in model.layers)
{
if (l.inputs.Length > 0 && shapesByName.TryGetValue(l.inputs[0], out TensorShape? xShape))
{
Xn = xShape;
}
else
{
Xn = O; // previous output is used, if-and-only-if layer has no explicit inputs
}
if (Xn == null)
{
shapes.Add(Xn);
shapesByName.Add(l.name, Xn);
continue;
}
TensorShape X = Xn.Value;
if (l.type == Layer.Type.Dense)
{
Assert.IsNotNull(l.datasets);
var W = l.datasets[0].shape;
O = new TensorShape(X.flatHeight, W.flatWidth);
}
else if (l.type == Layer.Type.MatMul)
{
if (!shapesByName.ContainsKey(l.inputs[1]) || shapesByName[l.inputs[1]] == null)
{
O = null;
break;
}
var Y = shapesByName[l.inputs[1]].Value;
// MatMul on 2D input: N,1,1,C
// MatMul on ND inputs: N,H,W,C with N*C = batches
var isStackOfMatrices = (X.dimensions != 2) || (Y.dimensions != 2);
if (isStackOfMatrices)
{
// X is multidim so N,H,W,c with H,W matmul dims
var batches = X.batch * X.channels;
Assert.AreEqual(X.batch * X.channels, Y.batch * Y.channels);
O = new TensorShape(X.batch, X.height, Y.width, X.channels);
}
else
{
O = new TensorShape(X.flatHeight, Y.flatWidth);
}
}
else if (
l.type == Layer.Type.Conv2D ||
l.type == Layer.Type.DepthwiseConv2D)
{
var K = l.datasets[0].shape;
Assert.IsNotNull(l.stride);
Assert.IsNotNull(l.pad);
var pad = X.AdjustPadToKernel(K, l.stride, l.pad);
O = X.ApplyKernel(K, l.stride, pad);
}
else if (
l.type == Layer.Type.Conv2DTrans)
{
var K = l.datasets[0].shape;
Assert.IsNotNull(l.stride);
Assert.IsNotNull(l.pad);
// pool size is treated as output_adjustment aka output_padding here
var outputAdjustment = l.pool;
var pad = X.AdjustPadToKernel(K, l.stride, l.pad);
O = X.ApplyKernelInverse(K, l.stride, pad, outputAdjustment);
}
else if (
l.type == Layer.Type.Upsample2D)
{
if (inputShapes.Count > 1)
{
O = null;
}
else
{
// pool size is treated as upsample coefficient here
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 2);
O = new TensorShape(X.batch, X.height * l.pool[1], X.width * l.pool[0], X.channels);
}
}
else if (
l.type == Layer.Type.Resample2D)
{
if (inputShapes.Count > 1)
{
O = null;
}
else
{
// pool is treated as resample size here
var size = l.pool;
Assert.IsNotNull(size);
Assert.AreEqual(size.Length, 2);
O = new TensorShape(X.batch, size[1], size[0], X.channels);
}
}
else if (
l.type == Layer.Type.DepthToSpace)
{
// pool size is treated as blocksize here
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 2);
Assert.AreEqual(X.channels % (l.pool[0] * l.pool[1]), 0);
O = new TensorShape(X.batch, X.height * l.pool[1], X.width * l.pool[0], X.channels / (l.pool[0] * l.pool[1]));
}
else if (
l.type == Layer.Type.SpaceToDepth)
{
// pool size is treated as blocksize here
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 2);
O = new TensorShape(X.batch, X.height / l.pool[1], X.width / l.pool[0], X.channels * (l.pool[0] * l.pool[1]));
}
else if (
l.type == Layer.Type.MaxPool2D ||
l.type == Layer.Type.AvgPool2D)
{
Assert.IsNotNull(l.pool);
Assert.IsNotNull(l.stride);
Assert.IsNotNull(l.pad);
var pad = X.AdjustPadToPool(l.pool, l.stride, l.pad);
O = X.ApplyPool(l.pool, l.stride, pad);
}
else if (
l.type == Layer.Type.GlobalMaxPool2D ||
l.type == Layer.Type.GlobalAvgPool2D)
{
O = new TensorShape(X.batch, 1, 1, X.channels);
}
else if (
l.type == Layer.Type.Border2D ||
l.type == Layer.Type.Pad2DReflect ||
l.type == Layer.Type.Pad2DSymmetric ||
l.type == Layer.Type.Pad2DEdge)
{
Assert.IsNotNull(l.pad);
O = X.ApplyBorder(l.pad);
}
else if (
l.type == Layer.Type.Conv3D ||
l.type == Layer.Type.Conv3DTrans ||
l.type == Layer.Type.Upsample3D ||
l.type == Layer.Type.MaxPool3D ||
l.type == Layer.Type.AvgPool3D ||
l.type == Layer.Type.GlobalMaxPool3D ||
l.type == Layer.Type.GlobalAvgPool3D ||
l.type == Layer.Type.Border3D)
{
throw new NotImplementedException();
}
else if (
l.type == Layer.Type.RandomNormal ||
l.type == Layer.Type.RandomUniform)
{
Assert.IsNotNull(l.pool);
// pool size is treated as shape constant, if not empty
// otherwise shape of the previous tensor is used
if (l.pool.Length > 0)
{
O = new TensorShape(l.pool);
}
else
{
O = X;
}
}
else if (
l.type == Layer.Type.Multinomial)
{
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 1);
O = new TensorShape(X.batch, l.pool[0]);
}
else if (
l.type == Layer.Type.OneHot)
{
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 1);
int features = X.flatWidth;
int depth = l.pool[0];
O = new TensorShape(X.batch, 1, features, depth);
}
else if (
l.type == Layer.Type.Add ||
l.type == Layer.Type.Sub ||
l.type == Layer.Type.Mul ||
l.type == Layer.Type.Div ||
l.type == Layer.Type.Pow ||
l.type == Layer.Type.Min ||
l.type == Layer.Type.Max ||
l.type == Layer.Type.Mean ||
l.type == Layer.Type.Greater ||
l.type == Layer.Type.GreaterEqual ||
l.type == Layer.Type.Less ||
l.type == Layer.Type.LessEqual ||
l.type == Layer.Type.Equal ||
l.type == Layer.Type.LogicalOr ||
l.type == Layer.Type.LogicalAnd ||
l.type == Layer.Type.LogicalXor)
{
// gather shapes by names
var list = new List <TensorShape>(l.inputs.Length);
bool allShapesKnown = true;
foreach (var i in l.inputs)
{
if (shapesByName.TryGetValue(i, out TensorShape? shape) && shape != null)
{
list.Add(shape.Value);
}
else
{
allShapesKnown = false;
}
}
O = allShapesKnown ? TensorExtensions.Max(list.ToArray()) : default(TensorShape?);
}
else if (
l.type == Layer.Type.ReduceL1 ||
l.type == Layer.Type.ReduceL2 ||
l.type == Layer.Type.ReduceLogSum ||
l.type == Layer.Type.ReduceLogSumExp ||
l.type == Layer.Type.ReduceMax ||
l.type == Layer.Type.ReduceMean ||
l.type == Layer.Type.ReduceMin ||
l.type == Layer.Type.ReduceProd ||
l.type == Layer.Type.ReduceSum ||
l.type == Layer.Type.ReduceSumSquare)
{
O = X.Reduce(l.axis);
}
else if (
l.type == Layer.Type.Flatten)
{
O = X.Flatten();
}
else if (
l.type == Layer.Type.Reshape)
{
// pool size is treated as the shape, if not empty
var size = l.pool;
Assert.IsNotNull(size);
if (size.Length == 0 && l.inputs.Length > 1)
{
switch (l.axis)
{
// Legacy - use the shape of the input tensor as the shape
case -1:
if (shapesByName.TryGetValue(l.inputs[1], out TensorShape? shape))
{
size = shape.Value.ToArray();
}
break;
// Use the tensor values as the shape; Calculated at runtime
case 1:
O = null;
break;
}
if (O == null)
{
break;
}
}
Assert.IsTrue((size.Length == 4) || (size.Length == 8));
O = X.Reshape(size);
}
else if (
l.type == Layer.Type.Expand)
{
// pool size is treated as new shape
var newShape = l.pool;
Assert.IsNotNull(newShape);
Assert.IsTrue(newShape.Length == 8 || newShape.Length == 4);
O = new TensorShape(newShape);
}
else if (
l.type == Layer.Type.Transpose)
{
var permutations = l.pool;
if (permutations == null)
{
O = new TensorShape(X.flatWidth, X.flatHeight);
}
else
{
Assert.IsTrue(permutations.Length == 8 || permutations.Length == 4);
O = X.Permute(permutations);
}
}
else if (
l.type == Layer.Type.Gather)
{
if (!shapesByName.TryGetValue(l.inputs[0], out TensorShape? input0Shape) || input0Shape == null ||
!shapesByName.TryGetValue(l.inputs[1], out TensorShape? input1Shape) || input1Shape == null)
{
O = null;
break;
}
int[] shape = input0Shape.Value.ToArray();
shape[l.axis] = input1Shape.Value.length;
O = new TensorShape(shape);
}
else if (
l.type == Layer.Type.Squeeze ||
l.type == Layer.Type.Unsqueeze)
{
throw new NotImplementedException();
}
else if (
l.type == Layer.Type.Concat)
{
// gather shapes by names
var list = new List <TensorShape>(l.inputs.Length);
bool allShapesKnown = true;
foreach (var i in l.inputs)
{
if (!shapesByName.TryGetValue(i, out var shape) || shape == null)
{
allShapesKnown = false;
continue;
}
list.Add(shape.Value);
}
O = allShapesKnown ? TensorExtensions.Concat(list.ToArray(), l.axis) : default(TensorShape?);
}
else if (
l.type == Layer.Type.StridedSlice)
{
Assert.IsNotNull(l.pad);
Assert.IsNotNull(l.pool);
Assert.IsNotNull(l.stride);
O = X.ApplyStridedSlice(l.pad, l.pool, l.stride);
}
else if (
l.type == Layer.Type.Tile)
{
// pool size is treated as tiling coefficient here
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 4);
var scale = l.pool;
O = X.Scale(scale);
}
else if (
l.type == Layer.Type.Load)
{
O = l.datasets[0].shape;
}
else if (// elementwise operations
l.type == Layer.Type.Nop ||
l.type == Layer.Type.Activation ||
l.type == Layer.Type.ScaleBias ||
l.type == Layer.Type.Normalization ||
l.type == Layer.Type.LRN ||
l.type == Layer.Type.Dropout ||
l.type == Layer.Type.LogicalNot ||
l.activation == Layer.Activation.PRelu)
{
// works in place, keeps the same shape size
O = X;
}
else if (
l.type == Layer.Type.TopKIndices ||
l.type == Layer.Type.TopKValues ||
l.type == Layer.Type.NonMaxSuppression ||
l.type == Layer.Type.NonZero)
{
// Calculated at runtime
O = null;
}
else if (l.type == Layer.Type.Shape)
{
int shapeRank = l.axis > 0 ? 1 : X.length;
O = new TensorShape(shapeRank, 1, 1, 1);
}
else if (l.type == Layer.Type.Where)
{
O = X;
}
else if (
l.type == Layer.Type.Conv3D ||
l.type == Layer.Type.Conv3DTrans ||
l.type == Layer.Type.Upsample3D ||
l.type == Layer.Type.MaxPool3D ||
l.type == Layer.Type.AvgPool3D ||
l.type == Layer.Type.GlobalMaxPool3D ||
l.type == Layer.Type.GlobalAvgPool3D ||
l.type == Layer.Type.Border3D)
{
throw new NotImplementedException("3D operations are not implemented yet!");
}
else
{
throw new NotImplementedException($"Layer type {l.type} needs to be explicitly handled");
}
shapes.Add(O);
shapesByName.Add(l.name, O);
}
Profiler.EndSample();
return(shapes.ToArray());
}
public static bool TryGetOutputTensorShape(Model model, IDictionary <string, TensorShape> inputShapes, string output, out TensorShape shape)
{
shape = new TensorShape();
IDictionary <string, TensorShape?> shapesByName;
ListTemporaryTensorShapes(model, inputShapes, out shapesByName);
TensorShape?dynamicShape;
bool found = shapesByName.TryGetValue(output, out dynamicShape);
if (found && (dynamicShape != null))
{
shape = dynamicShape.Value;
}
return(found);
}
public static TensorShape?[] ListTemporaryTensorShapes(Model model, IDictionary <string, TensorShape> inputShapes,
out IDictionary <string, TensorShape?> shapesByName)
{
Profiler.BeginSample("Barracuda.ListTemporaryTensorShapes");
var shapes = new List <TensorShape?>();
shapesByName = new Dictionary <string, TensorShape?>();
foreach (var entry in inputShapes)
{
shapesByName.Add(entry.Key, entry.Value);
}
TensorShape?Xn;
shapesByName.TryGetValue(GetDefaultInputName(model), out Xn); // default input
TensorShape?O = Xn;
foreach (var l in model.layers)
{
if (l.inputs.Length > 0 && shapesByName.TryGetValue(l.inputs[0], out TensorShape? xShape))
{
Xn = xShape;
}
else
{
Xn = O; // previous output is used, if-and-only-if layer has no explicit inputs
}
if (Xn == null)
{
shapes.Add(Xn);
shapesByName.Add(l.name, Xn);
continue;
}
TensorShape X = Xn.Value;
if (l.type == Layer.Type.Dense)
{
Assert.IsNotNull(l.datasets);
var W = l.datasets[0].shape;
O = new TensorShape(X.flatHeight, W.flatWidth);
}
else if (l.type == Layer.Type.Dense3)
{
Assert.IsNotNull(l.datasets);
var W = l.datasets[0].shape;
O = new TensorShape(X.batch, 1, W.channels, X.channels);
}
else if (l.type == Layer.Type.MatMul)
{
if (!shapesByName.ContainsKey(l.inputs[1]) || shapesByName[l.inputs[1]] == null)
{
O = null;
break;
}
var Y = shapesByName[l.inputs[1]].Value;
int rankX;
int rankY;
List <int> onnxXshape;
List <int> onnxYshape;
if (l.pool == null || l.pool.Length == 0)
{
LegacyGetXYRanks(X, Y, out rankX, out rankY);
}
else
{
rankX = l.pool[0];
rankY = l.pool[1];
}
onnxXshape = Compiler.IRShapeInferenceHelper.ShapeInference.BarracudaShapeToOnnxLayout(X, rankX);
onnxYshape = Compiler.IRShapeInferenceHelper.ShapeInference.BarracudaShapeToOnnxLayout(Y, rankY);
int rankO = Math.Max(rankX, rankY);
// pad 1 on front of shape to both be rankO shape
for (int i = 0; i < (rankX - rankY); i++)
{
onnxYshape.Insert(0, 1);
}
for (int i = 0; i < (rankY - rankX); i++)
{
onnxXshape.Insert(0, 1);
}
if (rankO == 2)
{
O = new TensorShape(onnxXshape[0], 1, 1, onnxYshape[1]);
}
else if (rankO == 3)
{
O = new TensorShape(Math.Max(onnxXshape[0], onnxYshape[0]), 1, onnxYshape[2], onnxXshape[1]);
}
else
{
O = new TensorShape(Math.Max(onnxXshape[0], onnxYshape[0]), onnxXshape[2], onnxYshape[3], Math.Max(onnxXshape[1], onnxYshape[1]));
}
}
else if (
l.type == Layer.Type.Conv2D ||
l.type == Layer.Type.Conv3D ||
l.type == Layer.Type.DepthwiseConv2D)
{
var K = l.datasets[0].shape;
Assert.IsNotNull(l.stride);
Assert.IsNotNull(l.pad);
var pad = X.AdjustPadToKernel(K, l.stride, l.pad);
O = X.ApplyKernel(K, l.stride, pad);
}
else if (
l.type == Layer.Type.Conv2DTrans)
{
var K = l.datasets[0].shape;
Assert.IsNotNull(l.stride);
Assert.IsNotNull(l.pad);
// pool size is treated as output_adjustment aka output_padding here
var outputAdjustment = l.pool;
var pad = X.AdjustPadToKernel(K, l.stride, l.pad);
O = X.ApplyKernelInverse(K, l.stride, pad, outputAdjustment);
}
else if (
l.type == Layer.Type.Upsample2D)
{
if (inputShapes.Count > 1)
{
O = null;
}
else
{
// pool size is treated as upsample coefficient here
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 2);
O = new TensorShape(X.batch, X.height * l.pool[1], X.width * l.pool[0], X.channels);
}
}
else if (
l.type == Layer.Type.Upsample3D)
{
if (inputShapes.Count > 1)
{
O = null;
}
else
{
// pool size is treated as upsample coefficient here
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 3);
O = new TensorShape(1, 1, X.batch, 1, X.depth * l.pool[2], X.height * l.pool[1], X.width * l.pool[0], X.channels);
}
}
else if (
l.type == Layer.Type.Resample2D)
{
if (inputShapes.Count > 1)
{
O = null;
}
else
{
// pool is treated as resample size here
var size = l.pool;
Assert.IsNotNull(size);
Assert.AreEqual(size.Length, 2);
O = new TensorShape(X.batch, size[1], size[0], X.channels);
}
}
else if (
l.type == Layer.Type.DepthToSpace)
{
// pool size is treated as blocksize here
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 2);
Assert.AreEqual(X.channels % (l.pool[0] * l.pool[1]), 0);
O = new TensorShape(X.batch, X.height * l.pool[1], X.width * l.pool[0], X.channels / (l.pool[0] * l.pool[1]));
}
else if (
l.type == Layer.Type.SpaceToDepth)
{
// pool size is treated as blocksize here
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 2);
O = new TensorShape(X.batch, X.height / l.pool[1], X.width / l.pool[0], X.channels * (l.pool[0] * l.pool[1]));
}
else if (
l.type == Layer.Type.MaxPool2D ||
l.type == Layer.Type.AvgPool2D)
{
Assert.IsNotNull(l.pool);
Assert.IsNotNull(l.stride);
Assert.IsNotNull(l.pad);
var pad = X.AdjustPadToPool(l.pool, l.stride, l.pad);
O = X.ApplyPool(l.pool, l.stride, pad);
}
else if (
l.type == Layer.Type.GlobalMaxPool2D ||
l.type == Layer.Type.GlobalAvgPool2D)
{
O = new TensorShape(X.batch, 1, 1, X.channels);
}
else if (l.type == Layer.Type.Border3D)
{
Assert.IsNotNull(l.pad);
// legacy support
if (l.pad.Length == 6)
{
X = X.ApplyBorder(new[] { l.pad[0], l.pad[1], l.pad[2], 0, l.pad[3], l.pad[4], l.pad[5], 0 });
}
else
{
O = X.ApplyBorder(l.pad);
}
}
else if (
l.type == Layer.Type.Border2D ||
l.type == Layer.Type.Pad2DReflect ||
l.type == Layer.Type.Pad2DSymmetric ||
l.type == Layer.Type.Pad2DEdge)
{
Assert.IsNotNull(l.pad);
// legacy support
if (l.pad.Length == 4)
{
X = X.ApplyBorder(new[] { l.pad[0], l.pad[1], 0, l.pad[2], l.pad[3], 0 });
}
else
{
O = X.ApplyBorder(l.pad);
}
}
else if (
l.type == Layer.Type.Conv3D ||
l.type == Layer.Type.Conv3DTrans ||
l.type == Layer.Type.Upsample3D ||
l.type == Layer.Type.MaxPool3D ||
l.type == Layer.Type.AvgPool3D ||
l.type == Layer.Type.GlobalMaxPool3D ||
l.type == Layer.Type.GlobalAvgPool3D ||
l.type == Layer.Type.Border3D)
{
throw new NotImplementedException();
}
else if (
l.type == Layer.Type.RandomNormal ||
l.type == Layer.Type.RandomUniform)
{
Assert.IsNotNull(l.pool);
// pool size is treated as shape constant, if not empty
// otherwise shape of the previous tensor is used
if (l.pool.Length > 0)
{
O = new TensorShape(l.pool);
}
else
{
O = X;
}
}
else if (l.type == Layer.Type.ConstantOfShape)
{
if (l.axis != 1)
{
O = null;
}
else
{
O = X;
}
}
else if (
l.type == Layer.Type.Multinomial)
{
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 1);
O = new TensorShape(X.batch, l.pool[0]);
}
else if (
l.type == Layer.Type.OneHot)
{
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 1);
int features = X.flatWidth;
int depth = l.pool[0];
if (X.flatWidth == 1) // 1D input
{
O = new TensorShape(X.batch, depth);
}
else
{
O = new TensorShape(X.batch, 1, depth, features);
}
}
else if (l.type == Layer.Type.RoiAlign)
{
Assert.IsNotNull(l.pool);
Assert.AreEqual(l.pool.Length, 2);
if (shapesByName.TryGetValue(l.inputs[1], out TensorShape? shape) && shape != null)
{
int batches = shape.Value.flatHeight;
O = new TensorShape(batches, l.pool[0], l.pool[1], X.channels);
}
else
{
O = null;
}
}
else if (
l.type == Layer.Type.Add ||
l.type == Layer.Type.Sub ||
l.type == Layer.Type.Mul ||
l.type == Layer.Type.Div ||
l.type == Layer.Type.Pow ||
l.type == Layer.Type.Min ||
l.type == Layer.Type.Max ||
l.type == Layer.Type.Mean ||
l.type == Layer.Type.Greater ||
l.type == Layer.Type.GreaterEqual ||
l.type == Layer.Type.Less ||
l.type == Layer.Type.LessEqual ||
l.type == Layer.Type.Equal ||
l.type == Layer.Type.LogicalOr ||
l.type == Layer.Type.LogicalAnd ||
l.type == Layer.Type.LogicalXor ||
l.type == Layer.Type.Where)
{
// gather shapes by names
var list = new List <TensorShape>(l.inputs.Length);
bool allShapesKnown = true;
foreach (var i in l.inputs)
{
if (shapesByName.TryGetValue(i, out TensorShape? shape) && shape != null)
{
list.Add(shape.Value);
}
else
{
allShapesKnown = false;
}
}
O = allShapesKnown ? TensorExtensions.Max(list.ToArray()) : default(TensorShape?);
}
else if (
l.type == Layer.Type.ReduceL1 ||
l.type == Layer.Type.ReduceL2 ||
l.type == Layer.Type.ReduceLogSum ||
l.type == Layer.Type.ReduceLogSumExp ||
l.type == Layer.Type.ReduceMax ||
l.type == Layer.Type.ReduceMean ||
l.type == Layer.Type.ReduceMin ||
l.type == Layer.Type.ReduceProd ||
l.type == Layer.Type.ReduceSum ||
l.type == Layer.Type.ReduceSumSquare ||
l.type == Layer.Type.ArgMax ||
l.type == Layer.Type.ArgMin)
{
O = X.Reduce(l.axis);
}
else if (
l.type == Layer.Type.Flatten)
{
O = X.Flatten();
}
else if (
l.type == Layer.Type.Reshape)
{
// pool size is treated as the shape, if not empty
var size = l.pool;
Assert.IsNotNull(size);
if (size.Length == 0 && l.inputs.Length > 1)
{
switch (l.axis)
{
// Legacy - use the shape of the input tensor as the shape
case -1:
if (shapesByName.TryGetValue(l.inputs[1], out TensorShape? shape))
{
size = shape.Value.ToArray();
}
break;
// Use the tensor values as the shape; Calculated at runtime
case 1:
O = null;
break;
}
if (O == null)
{
break;
}
}
Assert.IsTrue((size.Length == 4) || (size.Length == 8));
O = X.Reshape(size);
}
else if (
l.type == Layer.Type.Expand)
{
// pool size is treated as new shape
var newShape = l.pool;
Assert.IsNotNull(newShape);
Assert.IsTrue(newShape.Length == 8 || newShape.Length == 4);
O = new TensorShape(newShape);
}
else if (
l.type == Layer.Type.Transpose)
{
var permutations = l.pool;
if (permutations == null)
{
O = new TensorShape(X.flatWidth, X.flatHeight);
}
else
{
Assert.IsTrue(permutations.Length == 8 || permutations.Length == 4);
O = X.Permute(permutations);
}
}
else if (
l.type == Layer.Type.Gather)
{
if (!shapesByName.TryGetValue(l.inputs[0], out TensorShape? input0Shape) || input0Shape == null ||
!shapesByName.TryGetValue(l.inputs[1], out TensorShape? input1Shape) || input1Shape == null)
{
O = null;
break;
}
int[] shape = input0Shape.Value.ToArray();
shape[l.axis] = input1Shape.Value.length;
O = new TensorShape(shape);
if (l.pool != null && l.pool.Length == 2 && l.pool[1] > 1)
{
int xRank = l.pool[0];
int indicesRank = l.pool[1];
var oShape = Compiler.IRShapeInferenceHelper.ShapeInference.BarracudaShapeToList(O.Value, xRank);
var indicesShape = Compiler.IRShapeInferenceHelper.ShapeInference.BarracudaShapeToList(input1Shape.Value, indicesRank);
int axis = Compiler.IRShapeInferenceHelper.ShapeInference.BarracudaAxisToTensor(l.axis, xRank);
oShape.InsertRange(axis, indicesShape);
oShape.RemoveAt(axis + indicesShape.Count);
O = (O.Value).Reshape(Compiler.IRShapeInferenceHelper.ShapeInference.BarracudaLayoutToTensorShapeLayout(oShape.ToArray()));
// rank 2 -> 3
if (xRank == 2 && oShape.Count == 3)
{
O = (O.Value).Permute(new int[] { 0, 1, 3, 2 });
}
}
}
else if (l.type == Layer.Type.ScatterND)
{
O = X;
}
else if (
l.type == Layer.Type.Squeeze ||
l.type == Layer.Type.Unsqueeze)
{
O = X;
}
else if (
l.type == Layer.Type.Concat)
{
// gather shapes by names
var list = new List <TensorShape>(l.inputs.Length);
bool allShapesKnown = true;
foreach (var i in l.inputs)
{
if (!shapesByName.TryGetValue(i, out var shape) || shape == null)
{
allShapesKnown = false;
continue;
}
list.Add(shape.Value);
}
O = allShapesKnown ? TensorExtensions.Concat(list.ToArray(), l.axis) : default(TensorShape?);
}
else if (
l.type == Layer.Type.StridedSlice)
{
Assert.IsNotNull(l.pad);
Assert.IsNotNull(l.pool);
Assert.IsNotNull(l.stride);
O = X.ApplyStridedSlice(l.pad, l.pool, l.stride);
}
else if (
l.type == Layer.Type.Tile)
{
// pool size is treated as tiling coefficient here
Assert.IsNotNull(l.pool);
var scale = l.pool;
O = X.Scale(scale);
}
else if (
l.type == Layer.Type.Load)
{
O = l.datasets[0].shape;
}
else if (// elementwise operations
l.type == Layer.Type.Nop ||
l.type == Layer.Type.Activation ||
l.type == Layer.Type.ScaleBias ||
l.type == Layer.Type.Normalization ||
l.type == Layer.Type.LRN ||
l.type == Layer.Type.Dropout ||
l.type == Layer.Type.LogicalNot ||
l.type == Layer.Type.Sign)
{
// works in place, keeps the same shape size
O = X;
}
else if (
l.type == Layer.Type.TopKIndices ||
l.type == Layer.Type.TopKValues ||
l.type == Layer.Type.NonMaxSuppression ||
l.type == Layer.Type.LSTM ||
l.type == Layer.Type.NonZero)
{
// Calculated at runtime
O = null;
}
else if (l.type == Layer.Type.Shape)
{
int shapeRank = l.axis > 0 ? 1 : X.length;
O = new TensorShape(shapeRank, 1, 1, 1);
}
else if (
l.type == Layer.Type.Conv3D ||
l.type == Layer.Type.Conv3DTrans ||
l.type == Layer.Type.Upsample3D ||
l.type == Layer.Type.MaxPool3D ||
l.type == Layer.Type.AvgPool3D ||
l.type == Layer.Type.GlobalMaxPool3D ||
l.type == Layer.Type.GlobalAvgPool3D ||
l.type == Layer.Type.Border3D)
{
throw new NotImplementedException("3D operations are not implemented yet!");
}
else
{
throw new NotImplementedException($"Layer type {l.type} needs to be explicitly handled");
}
shapes.Add(O);
shapesByName.Add(l.name, O);
}
Profiler.EndSample();
return(shapes.ToArray());
}
Tensor IOps.Reshape(Tensor X, TensorShape shape)
{
return(m_Ops.Reshape(X, shape));
}