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dcslin/singa3.0-changlog.md

Last active March 16, 2020 07:14
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Added

  • Code quality has been promoted by introducing linting check in CI and auto code format as helper script. For linting, the tools, cpplint and pylint, are used and configured to comply google coding styles details in tool/linting/. Similarily, formating tools, clang-format and yapf configured with google coding styles, are the recommended one for developers to clean code before submitting changes, details in tool/code-format/.
  • Tensor APIs adds some new ones for naming consitency, and feature enhancement:
    • size(), mem_size(), get_value(), to_proto(), l1(), l2(): added for the sake of naming consitency
    • AsType(): convert data type between float and int
    • ceil(): perform element-wise ceiling of the input
    • concat(): concatenate two tensor
    • index selector: e.g. tensor1[:,:,1:,1:]
    • softmax(in, axis): allow to perform softmax on a axis on a multi-dimensionals tensor

Changed

  • DNNL(Deep Neural Network Library), powered by Intel, is integrated into model/opertaions/[batchnorm|pooling|convolution], the changes is opaque to the end users. The current version is dnnl v1.1 which replaced previous integration of mkl-dnn v0.18. The framework could boost the performance of dl operations when executing on CPU. The dnnl dependency is installed through conda.
  • marks some Tensor APIs as deprecated which could be replaced by broadcast, and it can support better on multi-dimensional operations
    • add_column(), add_row(), div_column(), div_row(), mult_column(), mult_row()
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