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52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
/*******************************************************
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* Copyright (c) 2014, ArrayFire
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* All rights reserved.
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*
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* This file is distributed under 3-clause BSD license.
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* The complete license agreement can be obtained at:
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* http://arrayfire.com/licenses/BSD-3-Clause
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********************************************************/
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#include <arrayfire.h>
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using namespace af;
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void Demo() {
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printf("\n\nBasic operations in ArrayFire");
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printf("Create a 5-by-3 matrix of random floats on the GPU\n");
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array A = randu(5,3, f32);
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af_print(A);
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printf("Element-wise arithmetic\n");
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array B = sin(A) + 1.5;
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af_print(B);
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printf("Negate the first three elements of second column\n");
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B(seq(0, 2), 1) = B(seq(0, 2), 1) * -1;
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af_print(B);
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printf("Fourier transform the result\n");
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array C = fft(B);
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af_print(C);
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printf("Grab last row\n");
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array c = C.row(end);
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af_print(c);
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printf("Create 2-by-3 matrix from host data\n");
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float d[] = { 1, 2, 3, 4, 5, 6 };
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array D(2, 3, d, af_source::afHost);
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af_print(D);
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printf("Copy last column onto first\n");
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D.col(0) = D.col(end);
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af_print(D);
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// Sort A
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printf("Sort A and print sorted array and corresponding indices\n");
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array vals, inds;
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sort(vals, inds, A);
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af_print(vals);
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af_print(inds);
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}
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