LaunchGeometry.h File Reference

Compile-time launch geometry of the ITS tracking kernels, per GPU family. Poor man's RTC to be removed/reworked entirely once we can use Gabriele's tuner. More...

Go to the source code of this file.

Classes
struct	o2::its::gpu::KernelOccupancy
	Minimum resident blocks per compute unit to request when no per-kernel measurement exists. More...

Namespaces
namespace	o2
	a couple of static helper functions to create timestamp values for CCDB queries or override obsolete objects
namespace	o2::its
namespace	o2::its::gpu

Functions
constexpr KernelOccupancy	o2::its::gpu::uniformOccupancy (int minBlocks)
	Use the same occupancy floor for every kernel when no per-kernel measurements are available.
constexpr int	o2::its::gpu::gridBlocks (int residentBlocksPerComputeUnit)
	Number of blocks in a grid whose depth is residentBlocksPerComputeUnit blocks per CU.
constexpr int	o2::its::gpu::gridThreads (int residentBlocksPerComputeUnit)
	Number of threads covered by a grid whose depth is residentBlocksPerComputeUnit blocks per CU.
constexpr bool	o2::its::gpu::residentCoversFloor ()
	The grid must provide at least as many blocks per CU as the corresponding occupancy floor.

Variables
constexpr int	o2::its::gpu::ComputeUnits = 60
constexpr int	o2::its::gpu::WarpSize = 64
constexpr int	o2::its::gpu::GPUThreads = 256
constexpr int	o2::its::gpu::DefaultBlocksPerComputeUnit = 4
constexpr int	o2::its::gpu::MaxBlocksPerComputeUnit = 10
constexpr KernelOccupancy	o2::its::gpu::MinBlocks = uniformOccupancy(1)
	NVIDIA: unmeasured.
constexpr KernelOccupancy	o2::its::gpu::ResidentBlocks = uniformOccupancy(DefaultBlocksPerComputeUnit)

Detailed Description

Compile-time launch geometry of the ITS tracking kernels, per GPU family. Poor man's RTC to be removed/reworked entirely once we can use Gabriele's tuner.

Definition in file LaunchGeometry.h.