[cudnn rnn fp32 math accumulation]#16825
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Updating persistent rnn check with input data type Updating rnn type promotion to enable set correct math type replace datatype check for filter descriptor from rnn.datatype to input.datatype
soumith
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Feb 7, 2019
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Ping @ngimel for visibility |
…lows TensorCore to be used with fp32 accumulation; 2. add comment for disabling type promotion in cudnn 7.1.3
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@pytorchbot retest this please |
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I guess we're gonna need a cudnn 3.5 build soon... |
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ezyang
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Feb 13, 2019
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@ngimel let me know if you want to review this before we put it in! |
ngimel
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Feb 13, 2019
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zdevito
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Feb 15, 2019
Summary: setting the correct math type for cudnn rnn, which is enforced starting from cudnn 7.5+ 1. Updating persistent rnn check with input data type instead of rnn math type; 2. Updating rnn type promotion to set correct math type for accumulation; 3. Replace datatype check for filter descriptor from rnn.datatype to input.datatype; Pull Request resolved: pytorch/pytorch#16825 Differential Revision: D14071190 Pulled By: ezyang fbshipit-source-id: 1c9a1531ccf510cb0619e830be444c20c5e72f3f
laurentdupin
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Apr 24, 2026
Summary: setting the correct math type for cudnn rnn, which is enforced starting from cudnn 7.5+ 1. Updating persistent rnn check with input data type instead of rnn math type; 2. Updating rnn type promotion to set correct math type for accumulation; 3. Replace datatype check for filter descriptor from rnn.datatype to input.datatype; Pull Request resolved: pytorch#16825 Differential Revision: D14071190 Pulled By: ezyang fbshipit-source-id: 1c9a1531ccf510cb0619e830be444c20c5e72f3f
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Summary: setting the correct math type for cudnn rnn, which is enforced starting from cudnn 7.5+