ONNX GraphSurgeon Change Log

Dates are in YYYY-MM-DD format.

v0.2.8 (2020-10-08)

Fixed

• Fixed a bug where graph inputs and outputs could be assigned SynchronizedList instances, and would therefore be modified if nodes in the graph were.

v0.2.7 (2020-09-29)

Changed

• Changed the default value of remove_unused_node_outputs in cleanup() to False, as a value of True can lead to unintuitive behavior, especially with looping constructs like Scan and Loop.

v0.2.6 (2020-09-25)

Fixed

• Fixed a bug where calling graph.tensors() would cause the inputs or outputs of some tensors to be modified.

Changed

• SynchronizedList.__add__() no longer modifies the left operand.

v0.2.5 (2020-09-21)

Fixed

• Fixed a bug where nodes including subgraphs whose inputs/outputs had the same names as the node's inputs/outputs would not be imported correctly.

v0.2.4 (2020-09-14)

Fixed

• fold_constants() will no longer fail if there is nothing to fold in the graph
• cleanup() will now properly remove the producer nodes of graph inputs.
• Fixed a bug where graph input/output tensors not attached to nodes would not be correctly exported.

v0.2.3 (2020-06-17)

Added

• Graph.register() now accepts an opsets argument so that functions can be registered for specific opsets.

Removed

• has_metadata has been removed from Tensor, since the function is no longer used.

v0.2.2 (2020-06-17)

Fixed

• ONNX GraphSurgeon now enforces the constraint that graph inputs/outputs must include type information.
• Fixed a bug where opset was not being considering when running inference for constant folding.

v0.2.1 (2020-06-10)

Added

• Added layer() function to Graph to make it easier to generate models from scratch
• Added i() and o() convenience functions to Tensor, which are similar to the functions for Node, but return Tensors instead of Nodes

v0.2.0 (2020-04-15)

Added

• Added an examples directory
• Added has_metadata() to Tensor classes to determine if dtype/shape are known.
• Added a check_duplicates parameter to Graph.tensors() to make it easy to check for duplicate tensors in the graph.

Changed

• Various improvements to the logger
• Updated OnnxImporter so that it can correctly import shapes and types from an ONNX graph after shape inference.
• Made Tensor an abstract class - all tensors in a graph are now either Variable or Constant
• Renames generate_tensor_map() to tensors() in Graph
• Removed Tensor suffix from Tensor classes.

v0.1.3 (2020-02-26)

Fixed

• The import_onnx and export_onnx functions will now preserve opset information and dim_param values in shapes.

v0.1.2 (2020-02-19)

Added

• Added i() and o() convenience functions to Node for retrieving input/output nodes.
• Added fold_constants() to Graph to allow for folding constants in the graph.
• Added __deepcopy__() to Graph.
• Added to_constant() and to_variable() functions to Variable and Constant respectively to transmute them in-place.

v0.1.1 (2020-02-11)

Changed

• Removed some type annotations to allow compatibility with Python 3.5.

v0.1.0 (2020-02-11)

Added

• Added Node, Tensor and Graph classes.
• Added BaseImporter and OnnxImporter classes.
• Added support for importing initializers in the OnnxImporter
• Added Variable and Constant
• Consolidates inputs/outputs of Nodes/Tensors. Now, inputs/outputs should generally only be added to Nodes.
• Added OnnxExporter to export Graph to onnx.GraphProto
• Added OnnxExporter and OnnxImporter to public imports
• Added toposort function to Graph, which will topologically sort it.
• Added cleanup function to Graph, which will remove unused nodes and tensors.
• Added high-level API for importing/exporting Graphs from/to ONNX models.
• Graphs are now generated with a default name of onnx_graphsurgeon