eric-haibin-lin commented on a change in pull request #16903: changing data
type of 't' to int in lamb_update_phase1
URL: https://github.com/apache/incubator-mxnet/pull/16903#discussion_r350943950
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File path: src/operator/optimizer_op-inl.h
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@@ -1639,8 +1639,8 @@ struct LambUpdatePhaseOneKernel {
DType g = mean_data[i] / (square_root::Map(var_data[i]) + epsilon) + wd *
weight_data[i];
if (bias_correction) {
- DType mean_hat = mean_data[i] / (1. - power::Map(beta1, t));
- DType var_hat = var_data[i] / (1 - power::Map(beta2, t));
+ DType mean_hat = mean_data[i] / (1. - std::pow(beta1, t));
Review comment:
@apeforest i'm not sure if mshadow allows mixed data type as inputs
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