tomevault-io JAX Scientific Computing
Core Rules
- Pure functions - No side effects
- JIT outer functions -
@jax.jiton hot paths - vmap not loops -
jax.vmap(fn)instead of list comprehensions - Split RNG keys - Never reuse keys
Patterns
# RNG: always split
key, k1, k2 = jax.random.split(key, 3)
# Batching: vmap not loops
batched = jax.vmap(fn)(inputs)
# Loops: use scan
_, results = jax.lax.scan(step_fn, init, xs)
Gotchas
- Arrays are immutable
- No Python control flow in JIT - use
jax.lax.cond,jax.lax.scan - Check NaNs:
jnp.isnan(x).any()
Converted and distributed by TomeVault — claim your Tome and manage your conversions.