define a loop-free untrue batching rule for rng_bit_generator
#20094
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This solves my issue with per-example independent sampling (before it was 100X slower compared to dependent sampling), thanks for the fix! |
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jax-ml/jax#20094 changes the behavior of RNG in vmap, so we can no longer rely on identical layer param initialization when using vmap vs. not. This affects RepeatedTransformerLayer and fused QKV layers. The fix is to convert layer params from the reference layer to the test layer instead of relying on identical initialization.
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* Upgrades jax from 0.4.25 to 0.4.27. * Fixes attention_test. jax-ml/jax#20094 changes the behavior of RNG in vmap, so we can no longer rely on identical layer param initialization when using vmap vs. not. This affects RepeatedTransformerLayer and fused QKV layers. The fix is to convert layer params from the reference layer to the test layer instead of relying on identical initialization. * Fixes rnn_test. * Fixes test_split_prng_key. * Fixes test_split_prng_key. * Fixes test_parent_children. * Upgrades to jax 0.4.28.
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* Upgrades jax from 0.4.25 to 0.4.27. * Fixes attention_test. jax-ml/jax#20094 changes the behavior of RNG in vmap, so we can no longer rely on identical layer param initialization when using vmap vs. not. This affects RepeatedTransformerLayer and fused QKV layers. The fix is to convert layer params from the reference layer to the test layer instead of relying on identical initialization. * Fixes rnn_test. * Fixes test_split_prng_key. * Fixes test_split_prng_key. * Fixes test_parent_children. * Upgrades to jax 0.4.28.
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fixes #19085, #16792
See #19085 for details.
Note that this is a random-bits-altering change, though only for vmapped random generation.