launch_bounds.h File Reference

Launch bounds of kernels that need many registers per thread. More...

#include <Kokkos_Core.hpp>

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Typedefs
using	HeavyBounds = Kokkos::LaunchBounds<>
	HIP compiles a kernel without launch bounds for blocks of 1024 threads, which caps it at 128 registers per thread and spills the rest to scratch memory; blocks of 256 threads allow 512. Other backends: no bounds.
template<typename... Traits>
using	HeavyRange = Kokkos::RangePolicy< HeavyBounds, Traits... >
	Range policy for register-heavy kernels.

Detailed Description

Launch bounds of kernels that need many registers per thread.

Copyright

Copyright (c) 2026 Matthew Bonanni

Typedef Documentation

HeavyBounds

using HeavyBounds = Kokkos::LaunchBounds<>

HIP compiles a kernel without launch bounds for blocks of 1024 threads, which caps it at 128 registers per thread and spills the rest to scratch memory; blocks of 256 threads allow 512. Other backends: no bounds.

HeavyRange

template<typename... Traits>

using HeavyRange = Kokkos::RangePolicy<HeavyBounds, Traits...>

Range policy for register-heavy kernels.