saxpy.hpp File Reference

#include "shambase/assert.hpp"
#include "shambase/time.hpp"
#include "shambackends/DeviceBuffer.hpp"
#include "shambackends/DeviceScheduler.hpp"
#include "shambackends/math.hpp"

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Classes
struct	sham::benchmarks::saxpy_result
	Structure containing the results of a saxpy benchmark. More...

Namespaces
namespace	sham
	namespace for backends this one is named only sham since shambackends is too long to write

Functions
template<class T >
void	sham::benchmarks::saxpy (u32 i, int n, T a, T *__restrict x, T *__restrict y)
	saxpy function for benchmarking.
template<class T >
saxpy_result	sham::benchmarks::saxpy_bench (DeviceScheduler_ptr sched, int N, T init_x, T init_y, T a, int load_size, bool check_correctness)
	saxpy function for benchmarking.

Detailed Description

Author

Timothée David–Cléris (tim.s.nosp@m.hamr.nosp@m.ock@p.nosp@m.roto.nosp@m.n.me)

Definition in file saxpy.hpp.

Function Documentation

saxpy()

template<class T >

void sham::benchmarks::saxpy ( u32  i, int  n, T  a, T *__restrict  x, T *__restrict  y  )

inline

saxpy function for benchmarking.

Parameters

[in]	i	Index to start the computation.
[in]	n	Number of elements to process.
[in]	a	Coefficient in the saxpy operation.
[in]	x	Input array.
[in,out]	y	Output array.

Definition at line 35 of file saxpy.hpp.

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saxpy_bench()

template<class T >

saxpy_result sham::benchmarks::saxpy_bench ( DeviceScheduler_ptr  sched, int  N, T  init_x, T  init_y, T  a, int  load_size, bool  check_correctness  )

inline

saxpy function for benchmarking.

Parameters

[in]	sched	Device scheduler.
[in]	N	Number of elements to process.
[in]	init_x	Initial value for the input array.
[in]	init_y	Initial value for the output array.
[in]	a	Coefficient in the saxpy operation.
[in]	load_size	Number of bytes processed per element.
[in]	check_correctness	Check if the result is correct.

From https://developer.nvidia.com/blog/how-implement-performance-metrics-cuda-cc/

Returns

saxpy_result containing the computation time in seconds, the bandwidth in gibibytes per second, and the name of the function.

Definition at line 70 of file saxpy.hpp.

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