CudaNufftSharedCore

struct CudaNufftSharedCore

Opaque handle to the process-wide shared CUDA NUFFT core (cuFFT plan cache + pooled grid scratch). Defined in CudaNufftPipeline.cu; see cuda_plan_cache_size()/cuda_pool_bytes() below. Mirrors MetalNufftSharedCore (MetalNufftPipeline.mm): mutex-guarded lazy init, intentionally immortal, never freed.