helloworld/helloworld.cpp
/*******************************************************
* Copyright (c) 2014, ArrayFire
* All rights reserved.
*
* This file is distributed under 3-clause BSD license.
* The complete license agreement can be obtained at:
* https://arrayfire.com/licenses/BSD-3-Clause
********************************************************/
#include <arrayfire.h>
#include <cstdio>
#include <cstdlib>
using namespace af;
int main(int argc, char* argv[]) {
try {
// Select a device and display arrayfire info
int device = argc > 1 ? atoi(argv[1]) : 0;
af::setDevice(device);
printf("Create a 5-by-3 matrix of random floats on the GPU\n");
array A = randu(5, 3, f32);
printf("Element-wise arithmetic\n");
array B = sin(A) + 1.5;
printf("Negate the first three elements of second column\n");
B(seq(0, 2), 1) = B(seq(0, 2), 1) * -1;
printf("Fourier transform the result\n");
array C = fft(B);
printf("Grab last row\n");
array c = C.row(end);
printf("Scan Test\n");
dim4 dims(16, 4, 1, 1);
array r = constant(2, dims);
printf("Scan\n");
printf("Create 2-by-3 matrix from host data\n");
float d[] = {1, 2, 3, 4, 5, 6};
array D(2, 3, d, afHost);
printf("Copy last column onto first\n");
D.col(0) = D.col(end);
// Sort A
printf("Sort A and print sorted array and corresponding indices\n");
array vals, inds;
sort(vals, inds, A);
af_print(vals);
af_print(inds);
} catch (af::exception& e) {
fprintf(stderr, "%s\n", e.what());
throw;
}
return 0;
}