public ConcreteFunction(Func <Tensor, IDatasetV2> func, TF_DataType dtype)
{
string func_name = $"{func.Method.Name}_{ops.uid_function()}";
func_graph = new FuncGraph(func_name);
func_graph.as_default();
var input = tf.placeholder(dtype);
var output = func(input);
OutputStructure = output.structure;
var opers = func_graph._nodes_by_name.Values.Select(x => x as Operation).ToArray();
func_graph.ToGraph(opers,
new[] { input },
new[] { output.variant_tensor },
null);
func_graph.Exit();
}
public ConcreteFunction(Func <Tensor, Tensor> func, TF_DataType dtype)
{
string func_name = $"autograph_{Guid.NewGuid()}_{func.Method.Name}";
tf.compat.v1.disable_eager_execution();
// IntPtr func_handle;
using (var graph = new FuncGraph(func_name))
{
graph.as_default();
var input = tf.placeholder(dtype);
var output = func(input);
var opers = graph._nodes_by_name.Values.Select(x => x as Operation).ToArray();
_handle = graph.ToGraph(opers,
new Operation[] { input },
new Operation[] { output },
null);
}
tf.enable_eager_execution();
}
public ConcreteFunction(Func <Tensors, Tensors> func,
TF_DataType[] dtypes, TensorShape[] shapes)
{
string func_name = $"{func.Method.Name}_{Guid.NewGuid()}";
// IntPtr func_handle;
using var graph = new FuncGraph(func_name);
graph.as_default();
var inputs = new Tensors();
foreach (var(i, dtype) in enumerate(dtypes))
{
inputs.Add(tf.placeholder(dtypes[i], shape: shapes[i], name: "args"));
}
Outputs = func(inputs);
OutputStructure = Outputs.Select(x => x.ToTensorSpec()).ToArray();
var opers = graph._nodes_by_name.Values.Select(x => x as Operation).ToArray();
_handle = graph.ToGraph(opers, inputs, Outputs, null);
graph.Exit();
}