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@ -67,7 +67,23 @@ int main(int argc, char *argv[]) |
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buff_max = porcja; // na wypadek, jeżeli jednak ostatni kawałek będzie mniejszy
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buff_max = porcja; // na wypadek, jeżeli jednak ostatni kawałek będzie mniejszy
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if (taskid == 0) |
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if (taskid == 0) |
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img_out.create(/*buff_max*ntasks*/img.rows, img.cols, img.type()); |
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img_out.create(img.rows, img.cols, img.type()); |
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int *chunk_sizes = new int[ntasks]; |
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int *chunk_order = new int[ntasks]; |
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for (i=0; i<ntasks; ++i) |
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{ |
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//if (i == 0)
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chunk_order[i] = (i == 0) ? 0 : chunk_order[i-1] + chunk_sizes[i-1]; |
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chunk_sizes[i] = porcja*img.cols*3; |
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if (i == ntasks-1) |
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chunk_sizes[i] = (img.rows - porcja*(ntasks-1))*img.cols*3; |
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//if (taskid == 0)
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// cout << chunk_sizes[i] << endl;
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} |
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MPI::COMM_WORLD.Barrier(); |
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MPI::COMM_WORLD.Barrier(); |
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@ -134,14 +150,17 @@ int main(int argc, char *argv[]) |
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} |
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} |
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MPI::COMM_WORLD.Barrier(); |
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MPI::COMM_WORLD.Barrier(); |
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if (taskid == 0) |
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if (taskid == 0 && false) |
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{ |
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{ |
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long elapsed = tt.End(); |
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long elapsed = tt.End(); |
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cout << "Time: " << elapsed << " ms" << endl; |
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cout << "Time: " << elapsed << " ms" << endl; |
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} |
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} |
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// zwróć wszystko do programu głównego
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// zwróć wszystko do programu głównego
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MPI::COMM_WORLD.Gather(&img_part_out.data[0], porcja*img.cols*3, MPI::CHAR, &img_out.data[0], porcja*img.cols*3, MPI::CHAR, 0); |
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cout << porcja << endl; |
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//MPI::COMM_WORLD.Gather(&img_part_out.data[0], buff_max*img.cols*3, MPI::CHAR, &img_out.data[0], buff_max*img.cols*3, MPI::CHAR, 0);
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MPI::COMM_WORLD.Gatherv(&img_part_out.data[0], porcja*img.cols*3, MPI::CHAR, &img_out.data[0], chunk_sizes, chunk_order, MPI::CHAR, 0); |
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//cout << taskid << endl;
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if (taskid == 0) |
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if (taskid == 0) |
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imwrite(argv[2], img_out); |
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imwrite(argv[2], img_out); |
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MPI::Finalize(); |
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MPI::Finalize(); |
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