Simple GPU kernel operations for element-wise computations. More...

#include <openpfc/gpu/gpu_vector.hpp>

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Functions
void	pfc::gpu::add_scalar (GPUVector< double > &vec, double value)
	Add a scalar value to each element of a GPU vector.

void	pfc::gpu::multiply_scalar (GPUVector< double > &vec, double value)
	Multiply each element of a GPU vector by a scalar.

Detailed Description

Simple GPU kernel operations for element-wise computations.

This header provides simple GPU kernel operations that work with GPUVector. These are basic building blocks for more complex GPU computations.

All functions are only available when CUDA is enabled at compile time. On systems without CUDA, these functions will not be compiled.

#ifdef OpenPFC_ENABLE_CUDA
    pfc::gpu::GPUVector<double> vec(1000);
    // ... initialize vec ...
    pfc::gpu::add_scalar(vec, 10.0);  // Add 10.0 to each element
#endif

Author: OpenPFC Development Team

Date: 2025

Function Documentation

◆ add_scalar()

void pfc::gpu::add_scalar	(	GPUVector< double > &	vec,
		double	value
	)

Add a scalar value to each element of a GPU vector.

Performs element-wise addition: vec[i] = vec[i] + value for all i.

Parameters

vec	GPU vector to modify (in-place)
value	Scalar value to add to each element

Exceptions

std::runtime_error if CUDA kernel launch fails

Note: Only available when OpenPFC_ENABLE_CUDA is defined. On systems without CUDA, this function will not be compiled.

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◆ multiply_scalar()

void pfc::gpu::multiply_scalar	(	GPUVector< double > &	vec,
		double	value
	)

Multiply each element of a GPU vector by a scalar.

Performs element-wise multiplication: vec[i] = vec[i] * value for all i.