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114 lines
2.4 KiB
C
114 lines
2.4 KiB
C
/* matrix.c: Matrix operations
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Copyright 2003 Bjoern Butscher, Hendrik Weimer
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This file is part of libquantum
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libquantum is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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libquantum is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with libquantum; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include "matrix.h"
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#include "config.h"
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#include "complex.h"
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/* Statistics of the memory consumption */
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unsigned long quantum_memman(long change)
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{
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static long mem = 0, max = 0;
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mem += change;
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if(mem > max)
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max = mem;
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return mem;
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}
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/* Create a new COLS x ROWS matrix */
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quantum_matrix
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quantum_new_matrix(int cols, int rows)
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{
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quantum_matrix m;
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m.rows = rows;
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m.cols = cols;
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m.t = calloc(cols * rows, sizeof(COMPLEX_FLOAT));
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#if (DEBUG_MEM)
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printf("allocating %i bytes of memory for %ix%i matrix at 0x%X\n",
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sizeof(COMPLEX_FLOAT) * cols * rows, cols, rows, (int) m.t);
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#endif
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if(!m.t)
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{
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printf("Not enogh memory for %ix%i-Matrix!",rows,cols);
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exit(1);
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}
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quantum_memman(sizeof(COMPLEX_FLOAT) * cols * rows);
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return m;
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}
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/* Delete a matrix */
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void
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quantum_delete_matrix(quantum_matrix *m)
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{
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#if (DEBUG_MEM)
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printf("freeing %i bytes of memory for %ix%i matrix at 0x%X\n",
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sizeof(COMPLEX_FLOAT) * m->cols * m->rows, m->cols, m->rows,
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(int) m->t);
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#endif
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free(m->t);
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quantum_memman(-sizeof(COMPLEX_FLOAT) * m->cols * m->rows);
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m->t=0;
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}
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/* Print the contents of a matrix to stdout */
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void
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quantum_print_matrix(quantum_matrix m)
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{
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int i, j, l, z=0;
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while ((1 << z++) < m.rows);
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z--;
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for(i=0; i<m.rows; i++)
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{
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for (l=z-1; l>=0; l--)
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{
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if ((l % 4 == 3))
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printf(" ");
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printf("%i", (i >> l) & 1);
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}
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printf(" | ");
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for(j=0; j<m.cols; j++)
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printf("%f %fi ", quantum_real(M(m, j, i)), quantum_imag(M(m, j, i)));
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printf("|\n");
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}
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printf("\n");
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}
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