是的,ArrayFire支持CPU和GPU计算的混合运算。可以使用af::setBackend()函数设置ArrayFire要使用的后端。默认情况下,ArrayFire将使用CPU后端。以下示例展示了如何将ArrayFire的计算移动到GPU并从GPU并回到CPU:
#include
#include
#include
using namespace af;
int main(int argc, char** argv) {
try {
// Create a 10x10 matrix with random values
array A = randu(10,10);
// Print the original matrix
std::cout << "Original matrix:" << std::endl;
std::cout << A << std::endl;
// Move computation to the GPU backend
setBackend(AF_BACKEND_CUDA);
// Compute the sine of the matrix using the GPU backend
array B = sin(A);
// Print the result from the GPU
std::cout << "Matrix after sine computation on GPU:" << std::endl;
std::cout << B << std::endl;
// Move computation back to the CPU backend
setBackend(AF_BACKEND_CPU);
// Compute the square of the matrix using the CPU backend
array C = pow(A, 2);
// Print the result from the CPU
std::cout << "Matrix after square computation on CPU:" << std::endl;
std::cout << C << std::endl;
} catch (af::exception& e) {
std::cerr << "Exception thrown: " << e.what() << std::endl;
}
return 0;
}
在这个例子中,我们使用setBackend()函数分别在GPU和CPU之间移动计算,并打印出计算后的结果矩阵。