anirudh2290 commented on issue #14760: upcasting accumulation type in norm 
increases loss/Perplexity 
URL: 
https://github.com/apache/incubator-mxnet/issues/14760#issuecomment-485599779
 
 
   Can we avoid adding another env variable ? We can accumulate only when dtype 
is set otherwise use the default behavior before this change was added. Also I 
understand FP16 inputs with accumulation in FP32 for softmax but does this also 
apply to FP32 inputs with accumulation in FP64. Will there be no accuracy loss ?

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