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jit model init #832

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merged 1 commit into from Jul 21, 2021
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jit model init #832

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13 changes: 10 additions & 3 deletions netket/vqs/mc_state.py
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Expand Up @@ -49,7 +49,14 @@ def compute_chain_length(n_chains, n_samples):


@partial(jax.jit, static_argnums=0)
def apply(fun, *args):
def jit_evaluate(fun: Callable, *args):
"""
call `fun(*args)` inside of a `jax.jit` frame.

Args:
fun: the hashable callable to be evaluated.
args: the arguments to the function.
"""
return fun(*args)


Expand Down Expand Up @@ -229,7 +236,7 @@ def init(self, seed=None, dtype=None):

dummy_input = jnp.zeros((1, self.hilbert.size), dtype=dtype)

variables = self._init_fun({"params": key}, dummy_input)
variables = jit_evaluate(self._init_fun, {"params": key}, dummy_input)
self.variables = variables

@property
Expand Down Expand Up @@ -434,7 +441,7 @@ def log_value(self, σ: jnp.ndarray) -> jnp.ndarray:

Given a batch of inputs (Nb, N), returns a batch of outputs (Nb,).
"""
return apply(self._apply_fun, self.variables, σ)
return jit_evaluate(self._apply_fun, self.variables, σ)

@deprecated("Use MCState.log_value(σ) instead.")
def evaluate(self, σ: jnp.ndarray) -> jnp.ndarray:
Expand Down