yippy._precision
================

.. py:module:: yippy._precision

.. autoapi-nested-parse::

   Precision policy for yippy.

   All float storage follows the global ``jax_enable_x64`` flag: float32 when the
   flag is off (the default, memory-friendly), float64 when it is on. This avoids a
   segmented float32/float64 pipeline, which JAX handles poorly.



Functions
---------

.. autoapisummary::

   yippy._precision.float_dtype
   yippy._precision.dtype_tag


Module Contents
---------------

.. py:function:: float_dtype()

   Active default float dtype: float64 if jax_enable_x64 else float32.

   Returns a numpy dtype usable for both ``np.*`` and ``jnp.*`` allocations.


.. py:function:: dtype_tag()

   Short cache key for the active float dtype: ``"f32"`` or ``"f64"``.