gridfire::QSECacheConfig Struct Reference

Configuration struct for the QSE cache. More...

#include <engine_multiscale.h>

Public Attributes
double	T9_tol
	Absolute tolerance to produce the same hash for T9.
double	rho_tol
	Absolute tolerance to produce the same hash for rho.
double	Yi_tol
	Absolute tolerance to produce the same hash for species abundances.

Detailed Description

Configuration struct for the QSE cache.

Purpose

This struct defines the tolerances used to determine if a QSE cache key is considered a hit. It allows for tuning the sensitivity of the cache.

How

It works by providing binning widths for temperature, density, and abundances. When a QSECacheKey is created, it uses these tolerances to discretize the continuous physical values into bins. If two sets of conditions fall into the same bins, they will produce the same hash and be considered a cache hit.

Usage Example:

Although not typically set by the user directly, the QSECacheKey uses this internally. A smaller tolerance (e.g., T9_tol = 1e-4) makes the cache more sensitive, leading to more frequent re-partitions, while a larger tolerance (T9_tol = 1e-2) makes it less sensitive.

Member Data Documentation

rho_tol

double gridfire::QSECacheConfig::rho_tol

Absolute tolerance to produce the same hash for rho.

T9_tol

double gridfire::QSECacheConfig::T9_tol

Absolute tolerance to produce the same hash for T9.

Yi_tol

double gridfire::QSECacheConfig::Yi_tol

Absolute tolerance to produce the same hash for species abundances.

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The documentation for this struct was generated from the following file:

• src/include/gridfire/engine/views/engine_multiscale.h