Type Alias PipelineCache 

pub type PipelineCache = HashMap<usize, CachedPipeline>;

Pipeline cache keyed by shader source pointer address.

Safe because all shader sources are &'static str constants with stable addresses. Create one per training session and pass to GpuCommandBatch::execute_with_cache() to avoid recompiling shaders across batch executions (KAIZEN-023).

Aliased Type

pub struct PipelineCache { /* private fields */ }