gputraits_sycl.h File Reference

#include <cstddef>
#include "gromacs/gpu_utils/gmxsycl.h"
#include "gromacs/math/vectypes.h"

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Description

Declares the SYCL type traits.

Author

Andrey Alekseenko al42a.nosp@m.nd@g.nosp@m.mail..nosp@m.com

Classes
struct	KernelLaunchConfig
	GPU kernels scheduling description. This is same in OpenCL/HIP. Provides reasonable defaults, one typically only needs to set the GPU stream and non-1 work sizes. More...

Macros
#define	c_canEmbedBuffers   true
	Sets whether device code can use arrays that are embedded in structs. More...

Typedefs
using	DeviceTexture = void *
	Type of device texture object. In SYCL, that would be sycl::image, but it's not used.
using	CommandEvent = void *
	Single GPU call timing event, not used with SYCL.
using	Float4 = sycl::float4
	Convenience alias.
using	Float3 = gmx::RVec
	Convenience alias. Not using sycl::float3 due to alignment issues.
using	Float2 = sycl::float2
	Convenience alias for sycl::float2.

Macro Definition Documentation

#define c_canEmbedBuffers   true

Sets whether device code can use arrays that are embedded in structs.

That is not technically true for SYCL, since DeviceBuffer holds not only the memory pointer, but also the context.

But our prepareGpuKernelArguments and launchGpuKernel functions deal with that, so we can pass embedded buffers to them, which is what this constant actually controls.