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ReNom version 2.6.1

Changes from 2.5

Please refer to changes at

  • Improved performance.
  • Add function curand_set_seed to determine the curand random number generator's seed.
  • Add argument ignore_bias to all parametrized class.
  • Add argument reduce_sum to all loss function class.
  • Add Weight Normalize.
  • Add Layer Normalize.
  • Add GPUDistributor.
  • Add Gru.
  • Add Convlution 3d, nd.
  • Add Max, Avg Pooling 3d, nd.
  • Add Unpooling 2d.

Changes from 2.6.0

  • Bug fix of the class LayerNormalize. Not to raise index error when gpu calculation.
  • Add an example of LayerNormalize.


  • python2.7, 3.4
  • numpy 1.13.0, 1.12.1
  • pytest 3.0.7
  • cython 0.24
  • cuda-toolkit 8.0, 9.1
  • cudnn 5.1, 6.0, 7.1
  • matplotlib 2.0.2
  • pandas 0.20.3
  • scikit-learn 0.18.2
  • scipy 0.19.0
  • tqdm 4.19.4


First clone the ReNom repository.

git clone

Then move to the ReNom folder, install the module using pip.

cd ReNom
pip install -e .

To activate CUDA, you have to build cuda modules before pip install -e . using following command.

python build_ext -if

Please be sure that the environment variable CUDA_HOME is set correctly.


$ echo $CUDA_HOME


If you set an environment variable RENOM_PRECISION=64, calculations are performed with float64.

Default case, the precision is float32.

Limit of tensor dimension size.

In ReNom version >= 2.4, only tensors that have less than 6 dimension size can be operated.


“ReNom” is provided by GRID inc., as subscribed software. By downloading ReNom, you are agreeing to be bound by our ReNom Subscription agreement between you and GRID inc. To use ReNom for commercial purposes, you must first obtain a paid license. Please contact us or one of our resellers. If you are an individual wishing to use ReNom for academic, educational and/or product evaluation purposes, you may use ReNom royalty-free. The ReNom Subscription agreements are subject to change without notice. You agree to be bound by any such revisions. You are responsible for visiting to determine the latest terms to which you are bound.