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From GitBox <...@apache.org>
Subject [GitHub] [singa] dcslin commented on pull request #779: half float update
Date Wed, 12 Aug 2020 08:10:34 GMT

dcslin commented on pull request #779:
URL: https://github.com/apache/singa/pull/779#issuecomment-672713946


   refactored https://github.com/apache/singa/pull/775
   
   changes:
   - cpp
     - tensor impl across device
       - add `half.hpp`
       - IO
         - add `f16` to `TYPE_SWITCH`
         - add `f16<->f32` to `singa::TypeCast` (scalar)
         - add explicit instantiation for `CopyDataFromHostPtr<f16>`
         - add cast DType to SType in `Tensor::SetValue`
         - add `f16` to `tensor::set_value()`
       - math
         - add `f16<->f32` for `cpu/cuda` to `TYPE_LANG_SWITCH`
         - add `f16<->f32` for `cpu/cuda` to `TYPE_TYPE_LANG_SWITCH`
         - add cast DType to SType in `EltwiseTensorScalarFn`
         - add cast DType to SType in `Div` (scalar/tensor)
     - tensor ops impl on device
       - add `GetCudnnDataType` to `generate_tensor_nd_desc`
       - add `f16` to `Transform`
       - add `f16` on `cpu/cuda` Gaussian
       - add `f16<->f32` for `cpu/cuda` to CastCopy
   - SWIG
     - add f16 typemaps
     - add API `GetHalfFloatValue`
     - add API `CopyHalfFloatDataFromHostPtr`
   - py
     - add f16 to `tensor.as_type()`
     - add f16 to `tensor.copy_from_numpy()`
     - add raise exception to `tensor. copy_from_numpy()` for unsupported type
     - add f16 to `tensor. from_numpy()`
     - 


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