backend_tags.hpp File Reference

Backend tags for compile-time backend selection. More...

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Classes
struct	pfc::backend::CpuTag
	CPU backend tag. More...

Detailed Description

Backend tags for compile-time backend selection.

This header defines empty struct tags used for template specialization to select different memory and compute backends at compile-time.

• CpuTag: CPU backend (always available)
• CudaTag: CUDA backend (only when OpenPFC_ENABLE_CUDA is defined)
• HipTag: HIP/ROCm backend (only when OpenPFC_ENABLE_HIP is defined)

These tags are used with template specialization to provide backend-specific implementations of data structures and operations with zero runtime overhead.

#include <openpfc/core/backend_tags.hpp>
#include <openpfc/core/databuffer.hpp>
 
// CPU memory (always available)
pfc::core::DataBuffer<pfc::backend::CpuTag, double> cpu_buf(1000);
 
#if defined(OpenPFC_ENABLE_CUDA)
// GPU memory (only when CUDA is enabled)
pfc::core::DataBuffer<pfc::backend::CudaTag, double> gpu_buf(1000);
#endif

See also

core/databuffer.hpp for usage in memory management

core/memory_traits.hpp for backend metadata

Author

OpenPFC Development Team

Date

2025