| 14 | using namespace af; |
| 15 | |
| 16 | int main(int argc, char* argv[]) { |
| 17 | try { |
| 18 | // Select a device and display arrayfire info |
| 19 | int device = argc > 1 ? atoi(argv[1]) : 0; |
| 20 | af::setDevice(device); |
| 21 | af::info(); |
| 22 | |
| 23 | printf("Create a 5-by-3 matrix of random floats on the GPU\n"); |
| 24 | array A = randu(5, 3, f32); |
| 25 | af_print(A); |
| 26 | |
| 27 | printf("Element-wise arithmetic\n"); |
| 28 | array B = sin(A) + 1.5; |
| 29 | af_print(B); |
| 30 | |
| 31 | printf("Negate the first three elements of second column\n"); |
| 32 | B(seq(0, 2), 1) = B(seq(0, 2), 1) * -1; |
| 33 | af_print(B); |
| 34 | |
| 35 | printf("Fourier transform the result\n"); |
| 36 | array C = fft(B); |
| 37 | af_print(C); |
| 38 | |
| 39 | printf("Grab last row\n"); |
| 40 | array c = C.row(end); |
| 41 | af_print(c); |
| 42 | |
| 43 | printf("Scan Test\n"); |
| 44 | dim4 dims(16, 4, 1, 1); |
| 45 | array r = constant(2, dims); |
| 46 | af_print(r); |
| 47 | |
| 48 | printf("Scan\n"); |
| 49 | array S = af::scan(r, 0, AF_BINARY_MUL); |
| 50 | af_print(S); |
| 51 | |
| 52 | printf("Create 2-by-3 matrix from host data\n"); |
| 53 | float d[] = {1, 2, 3, 4, 5, 6}; |
| 54 | array D(2, 3, d, afHost); |
| 55 | af_print(D); |
| 56 | |
| 57 | printf("Copy last column onto first\n"); |
| 58 | D.col(0) = D.col(end); |
| 59 | af_print(D); |
| 60 | |
| 61 | // Sort A |
| 62 | printf("Sort A and print sorted array and corresponding indices\n"); |
| 63 | array vals, inds; |
| 64 | sort(vals, inds, A); |
| 65 | af_print(vals); |
| 66 | af_print(inds); |
| 67 | |
| 68 | } catch (af::exception& e) { |
| 69 | fprintf(stderr, "%s\n", e.what()); |
| 70 | throw; |
| 71 | } |
| 72 | |
| 73 | return 0; |