BlockCopyDispatch.h File Reference

(bba9247 (Tue Jul 28 21:42:19 2026 -0700))

Vectorized trivial-object copy block sizes (CUDA and SYCL). More...

#include <cstdint>

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Namespaces
namespace	open3d
namespace	open3d::core

Functions
int64_t	open3d::core::GetLargestAlignedObjectBlockSize (int64_t object_byte_size)
	Largest entry in kBlockCopyDivisors that divides object_byte_size.

Variables
constexpr int64_t	open3d::core::kBlockCopyDivisors [] = {64, 16, 12, 4, 1}

Detailed Description

Vectorized trivial-object copy block sizes (CUDA and SYCL).

kBlockCopyDivisors selects the widest vector load/store type that divides an object byte size. Used for hash-map SoA buffers, Dtype::Object index get/set, and non-contiguous SYCL tensor copies of object dtypes.