1 /*****************************************************************************
2 ** This is part of the CTSim program
3 ** Copyright (C) 1983-2000 Kevin Rosenberg
5 ** $Id: ctrec.cpp,v 1.1 2000/06/07 02:29:05 kevin Exp $
7 ** Revision 1.1 2000/06/07 02:29:05 kevin
8 ** Initial C++ versions
10 ** Revision 1.13 2000/06/05 01:33:25 kevin
13 ** Revision 1.12 2000/05/24 22:50:04 kevin
14 ** Added support for new SGP library
16 ** Revision 1.11 2000/05/16 04:33:59 kevin
17 ** Improved option processing
19 ** Revision 1.10 2000/05/11 01:06:30 kevin
20 ** Changed sprintf to snprintf
22 ** Revision 1.9 2000/05/08 20:02:32 kevin
25 ** Revision 1.8 2000/05/04 18:16:34 kevin
26 ** renamed filter definitions
28 ** Revision 1.7 2000/05/03 08:49:50 kevin
31 ** Revision 1.6 2000/05/02 15:31:47 kevin
34 ** Revision 1.5 2000/04/30 11:41:06 kevin
35 ** Cleaned up debugging code
37 ** Revision 1.4 2000/04/30 10:13:27 kevin
40 ** Revision 1.3 2000/04/30 04:06:13 kevin
41 ** Update Raysum i/o routines
42 ** Fix MPI bug in ctrec (scatter_raysum) that referenced rs_global
44 ** Revision 1.2 2000/04/29 23:24:56 kevin
45 ** *** empty log message ***
47 ** Revision 1.1.1.1 2000/04/28 13:02:44 kevin
48 ** Initial CVS import for first public release
52 ** This program is free software; you can redistribute it and/or modify
53 ** it under the terms of the GNU General Public License (version 2) as
54 ** published by the Free Software Foundation.
56 ** This program is distributed in the hope that it will be useful,
57 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
58 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
59 ** GNU General Public License for more details.
61 ** You should have received a copy of the GNU General Public License
62 ** along with this program; if not, write to the Free Software
63 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
64 ******************************************************************************/
67 * ctrec.c Reconstruct an image from raysums
71 * Jul 99 -- Converted to ANSI C
72 * Added MPI parallel processing
77 enum {O_INTERP, O_FILTER, O_FILTER_PARAM, O_BACKPROJ, O_VERBOSE, O_TRACE, O_HELP, O_DEBUG, O_VERSION};
79 static struct option my_options[] =
81 {"interp", 1, 0, O_INTERP},
82 {"filter", 1, 0, O_FILTER},
83 {"filter-param", 1, 0, O_FILTER_PARAM},
84 {"backproj", 1, 0, O_BACKPROJ},
85 {"trace", 1, 0, O_TRACE},
86 {"debug", 0, 0, O_DEBUG},
87 {"verbose", 0, 0, O_VERBOSE},
88 {"help", 0, 0, O_HELP},
89 {"version", 0, 0, O_VERSION},
94 ctrec_usage (const char *program)
96 fprintf(stdout,"usage: %s raysum-file image-file nx-image ny-image [OPTIONS]\n", kbasename(program));
97 fprintf(stdout,"Image reconstruction from raysum projections\n");
99 fprintf(stdout," raysum-file Input raysum file\n");
100 fprintf(stdout," image-file Output image file in SDF2D format\n");
101 fprintf(stdout," nx-image Number of columns in output image\n");
102 fprintf(stdout," ny-image Number of rows in output image\n");
103 fprintf(stdout," --interp Interpolation method during backprojection\n");
104 fprintf(stdout," nearest Nearest neighbor interpolation\n");
105 fprintf(stdout," linear Linear interpolation\n");
106 #if HAVE_BSPLINE_INTERP
107 fprintf(stdout," bspline B-spline interpolation\n");
109 fprintf(stdout," --filter Filter name\n");
110 fprintf(stdout," abs_bandlimit Abs * Bandlimiting (default)\n");
111 fprintf(stdout," abs_sinc Abs * Sinc\n");
112 fprintf(stdout," abs_cos Abs * Cosine\n");
113 fprintf(stdout," abs_hamming Abs * Hamming\n");
114 fprintf(stdout," shepp Shepp-Logan\n");
115 fprintf(stdout," bandlimit Bandlimiting\n");
116 fprintf(stdout," sinc Sinc\n");
117 fprintf(stdout," cos Cosine\n");
118 fprintf(stdout," triangle Triangle\n");
119 fprintf(stdout," hamming Hamming\n");
120 fprintf(stdout," --backproj Backprojection Method\n");
121 fprintf(stdout," trig Trigometric functions at every point\n");
122 fprintf(stdout," table Trigometric functions with precalculated table\n");
123 fprintf(stdout," diff Difference method\n");
124 fprintf(stdout," diff2 Optimized difference method (default)\n");
125 fprintf(stdout," idiff2 Optimized difference method with integer math\n");
126 fprintf(stdout," --filter-param Alpha level for Hamming filter\n");
127 fprintf(stdout," --trace Set tracing to level\n");
128 fprintf(stdout," none No tracing (default)\n");
129 fprintf(stdout," text Text level tracing\n");
130 fprintf(stdout," phm Trace phantom\n");
131 fprintf(stdout," rays Trace allrays\n");
132 fprintf(stdout," plot Trace plotting\n");
133 fprintf(stdout," clipping Trace clipping\n");
134 fprintf(stdout," --verbose Turn on verbose mode\n");
135 fprintf(stdout," --debug Turn on debug mode\n");
136 fprintf(stdout," --version Print version\n");
137 fprintf(stdout," --help Print this help message\n");
142 static void mpi_scatter_rs (RAYSUM *rs_global, RAYSUM *rs_local, const int debug);
145 static void print_raysum_info(const RAYSUM *rs);
148 ctrec_main (const int argc, char *const argv[])
150 IMAGE *im_global = NULL;
151 RAYSUM *rs_global = NULL;
152 char *rs_name, *im_filename = NULL;
153 char remark[MAXREMARK];
156 double time_start = 0, time_end = 0;
160 int opt_trace = TRACE_NONE;
161 double opt_filter_param = 1;
162 FilterType opt_filter = FILTER_ABS_BANDLIMIT;
163 InterpolationType opt_interp = I_LINEAR;
164 int opt_interp_param = 1;
165 BackprojType opt_backproj = O_BPROJ_DIFF2;
170 char **mpi_argv = (char **) argv;
171 int mpi_nview, mpi_ndet;
172 double mpi_detinc, mpi_rotinc, mpi_phmlen;
173 double mpi_t1, mpi_t2, mpi_t, mpi_t_g;
176 MPI_Init(&mpi_argc, &mpi_argv);
177 MPI_Comm_dup (MPI_COMM_WORLD, &mpi_ct.comm);
178 MPI_Comm_size(mpi_ct.comm, &mpi_ct.nproc);
179 MPI_Comm_rank(mpi_ct.comm, &mpi_ct.my_rank);
181 if (mpi_ct.nproc > MPI_MAX_PROCESS) {
182 sys_error(ERR_FATAL, "Number of mpi processes (%d) exceeds max processes (%d)",
183 mpi_ct.nproc, MPI_MAX_PROCESS);
189 time_start = MPI_Wtime();
191 time_start = td_current_sec();
195 if (mpi_ct.my_rank == 0) {
198 int c = getopt_long(argc, argv, "", my_options, NULL);
207 if ((opt_interp = opt_set_interpolation(optarg)) < 0) {
208 ctrec_usage(argv[0]);
213 if ((opt_filter = opt_set_filter(optarg)) < 0) {
214 ctrec_usage(argv[0]);
219 if ((opt_backproj = opt_set_backproj(optarg)) < 0) {
220 ctrec_usage(argv[0]);
225 opt_filter_param = strtod(optarg, &endptr);
226 if (endptr != optarg + strlen(optarg)) {
227 ctrec_usage(argv[0]);
237 if ((opt_trace = opt_set_trace(optarg)) < 0) {
238 ctrec_usage(argv[0]);
244 fprintf(stdout, "Version %s\n", VERSION);
246 fprintf(stderr, "Unknown version number");
251 ctrec_usage(argv[0]);
254 ctrec_usage(argv[0]);
259 if (optind + 4 != argc) {
260 ctrec_usage(argv[0]);
264 rs_name = argv[optind];
266 im_filename = argv[optind + 1];
268 nx = strtol(argv[optind + 2], &endptr, 10);
269 ny = strtol(argv[optind + 3], &endptr, 10);
271 if (opt_filter == FILTER_G_HAMMING || opt_filter == FILTER_ABS_G_HAMMING)
272 snprintf (filt_name, sizeof(filt_name), "%s: alpha = %.2f",
273 name_of_filter (opt_filter), opt_filter_param);
275 snprintf (filt_name, sizeof(filt_name), "%s", name_of_filter (opt_filter));
277 snprintf (remark, sizeof(remark), "Reconstruct: %dx%d, %s, %s, %s",
278 nx, ny, filt_name, name_of_interpolation (opt_interp), name_of_backproj(opt_backproj));
281 fprintf (stdout, "%s\n", remark);
287 if (mpi_ct.my_rank == 0) {
288 rs_global = raysum_open (rs_name);
289 raysum_read (rs_global);
291 print_raysum_info(rs_global);
293 mpi_ndet = rs_global->ndet;
294 mpi_nview = rs_global->nview;
295 mpi_detinc = rs_global->det_inc;
296 mpi_phmlen = rs_global->phmlen;
297 mpi_rotinc = rs_global->rot_inc;
300 mpi_t1 = MPI_Wtime();
301 MPI_Bcast(&opt_verbose, 1, MPI_INT, 0, mpi_ct.comm);
302 MPI_Bcast(&opt_debug, 1, MPI_INT, 0, mpi_ct.comm);
303 MPI_Bcast(&opt_trace, 1, MPI_INT, 0, mpi_ct.comm);
304 MPI_Bcast(&opt_filter, 1, MPI_INT, 0, mpi_ct.comm);
305 MPI_Bcast(&opt_interp, 1, MPI_INT, 0, mpi_ct.comm);
306 MPI_Bcast(&opt_filter_param, 1, MPI_DOUBLE, 0, mpi_ct.comm);
307 MPI_Bcast(&opt_interp_param, 1, MPI_INT, 0, mpi_ct.comm);
308 MPI_Bcast(&opt_backproj, 1, MPI_INT, 0, mpi_ct.comm);
309 MPI_Bcast(&mpi_ndet, 1, MPI_INT, 0, mpi_ct.comm);
310 MPI_Bcast(&mpi_nview, 1, MPI_INT, 0, mpi_ct.comm);
311 MPI_Bcast(&mpi_detinc, 1, MPI_DOUBLE, 0, mpi_ct.comm);
312 MPI_Bcast(&mpi_phmlen, 1, MPI_DOUBLE, 0, mpi_ct.comm);
313 MPI_Bcast(&mpi_rotinc, 1, MPI_DOUBLE, 0, mpi_ct.comm);
314 MPI_Bcast(&nx, 1, MPI_INT, 0, mpi_ct.comm);
315 MPI_Bcast(&ny, 1, MPI_INT, 0, mpi_ct.comm);
317 mpi_t2 = MPI_Wtime();
318 mpi_t = mpi_t2 - mpi_t1;
319 MPI_Reduce(&mpi_t, &mpi_t_g, 1, MPI_DOUBLE, MPI_MAX, 0, mpi_ct.comm);
320 if (mpi_ct.my_rank == 0)
321 printf("Time to Bcast vars = %f secs, Max time = %f\n", mpi_t, mpi_t_g);
324 mpi_ct_calc_work_units(mpi_nview);
326 rs_local = raysum_create (NULL, mpi_ct.local_work_units[mpi_ct.my_rank], mpi_ndet);
328 rs_local->ndet = mpi_ndet;
329 rs_local->nview = mpi_nview;
330 rs_local->det_inc = mpi_detinc;
331 rs_local->phmlen = mpi_phmlen;
332 rs_local->rot_inc = mpi_rotinc;
335 mpi_t1 = MPI_Wtime();
336 mpi_scatter_rs(rs_global, rs_local, opt_debug);
338 mpi_t2 = MPI_Wtime();
339 mpi_t = mpi_t2 - mpi_t1;
340 MPI_Reduce(&mpi_t, &mpi_t_g, 1, MPI_DOUBLE, MPI_MAX, 0, mpi_ct.comm);
341 if (mpi_ct.my_rank == 0)
342 printf("Time to scatter rs = %f secs, Max time = %f sec\n", mpi_t, mpi_t_g);
345 if (mpi_ct.my_rank == 0) {
346 im_global = image_create (im_filename, nx, ny);
347 sdf_add_label (LT_HISTORY, rs_global->remark, rs_global->calctime, im_global->dfp_2d->dfp);
348 sdf_add_empty_label (im_global->dfp_2d->dfp);
350 im_local = image_create (NULL, nx, ny);
353 rs_global = raysum_open (rs_name);
354 raysum_read (rs_global);
356 print_raysum_info(rs_global);
358 im_global = image_create (im_filename, nx, ny);
359 sdf_add_label (LT_HISTORY, rs_global->remark, rs_global->calctime, im_global->dfp_2d->dfp);
360 sdf_add_empty_label (im_global->dfp_2d->dfp);
364 mpi_t1 = MPI_Wtime();
365 image_reconst (im_local, rs_local, opt_filter, opt_filter_param,
366 opt_interp, opt_interp_param, opt_backproj, opt_trace);
367 mpi_t2 = MPI_Wtime();
368 mpi_t = mpi_t2 - mpi_t1;
369 MPI_Reduce(&mpi_t, &mpi_t_g, 1, MPI_DOUBLE, MPI_MAX, 0, mpi_ct.comm);
370 if (mpi_ct.my_rank == 0 && opt_verbose)
371 printf("Time to reconstruct = %f, Max time = %f\n", mpi_t, mpi_t_g);
373 image_reconst (im_global, rs_global, opt_filter, opt_filter_param,
374 opt_interp, opt_interp_param, opt_backproj, opt_trace);
379 mpi_t1 = MPI_Wtime();
381 for (ix = 0; ix < im_local->nx; ix++) {
382 void *recvbuf = NULL;
383 if (mpi_ct.my_rank == 0)
384 recvbuf = im_global->v[ix];
386 MPI_Reduce(im_local->v[ix], recvbuf, im_local->ny, MPI_FLOAT, MPI_SUM, 0, mpi_ct.comm);
390 mpi_t2 = MPI_Wtime();
391 mpi_t = mpi_t2 - mpi_t1;
392 MPI_Reduce(&mpi_t, &mpi_t_g, 1, MPI_DOUBLE, MPI_MAX, 0, mpi_ct.comm);
393 if (mpi_ct.my_rank == 0)
394 printf("Time to reduce image = %f secs, max time = %f\n", mpi_t, mpi_t_g);
397 if (mpi_ct.my_rank == 0)
398 time_end = MPI_Wtime();
400 time_end = td_current_sec();
405 if (mpi_ct.my_rank == 0)
408 raysum_close (rs_global);
409 strncpy (im_global->remark, remark, sizeof(im_global->remark));
410 im_global->calctime = time_end - time_start;
411 image_save (im_global);
413 fprintf (stdout, "Time active = %.2f\n", im_global->calctime);
425 static void mpi_scatter_rs (RAYSUM *rs_global, RAYSUM *rs_local, const int opt_debug)
431 if (mpi_ct.my_rank == 0) {
432 for (iproc = 0; iproc < mpi_ct.nproc; iproc++) {
433 end_work_unit = mpi_ct.start_work_unit[iproc] + mpi_ct.local_work_units[iproc] - 1;
435 for (iw = mpi_ct.start_work_unit[iproc]; iw <= end_work_unit; iw++) {
436 MPI_Send(&rs_global->view[iw]->ndet, 1, MPI_INT, iproc, 0, mpi_ct.comm);
437 MPI_Send(&rs_global->view[iw]->view_angle, 1, MPI_DOUBLE, iproc, 0, mpi_ct.comm);
438 MPI_Send(rs_global->view[iw]->detval, rs_global->ndet, MPI_FLOAT, iproc, 0, mpi_ct.comm);
444 fprintf(stdout, "Receiving rs data in process %d\n", mpi_ct.my_rank);
446 end_work_unit = mpi_ct.local_work_units[mpi_ct.my_rank] - 1;
447 for (iw = 0; iw <= end_work_unit; iw++) {
450 MPI_Recv(&rs_local->view[iw]->ndet, 1, MPI_INT, 0, 0, mpi_ct.comm, &status);
451 MPI_Recv(&rs_local->view[iw]->view_angle, 1, MPI_DOUBLE, 0, 0, mpi_ct.comm, &status);
452 MPI_Recv(rs_local->view[iw]->detval, rs_local->ndet, MPI_FLOAT, 0, 0, mpi_ct.comm, &status);
454 rs_local->nview = mpi_ct.local_work_units[mpi_ct.my_rank];
456 MPI_Barrier(MPI_COMM_WORLD);
457 fprintf(stdout, "Done with mpi_scatter_rs in process %2d\n", mpi_ct.my_rank);
463 static void print_raysum_info(const RAYSUM *rs)
465 printf ("Number of detectors: %d\n", rs->ndet);
466 printf (" Number of views: %d\n", rs->nview);
467 printf (" Remark: %s\n", rs->remark);
468 printf (" phmlen: %f\n", rs->phmlen);
469 printf (" det_start: %f\n", rs->det_start);
470 printf (" det_inc: %f\n", rs->det_inc);
471 printf (" rot_start: %f\n", rs->rot_start);
472 printf (" rot_inc: %f\n", rs->rot_inc);
477 main (const int argc, char *const argv[])
479 return (ctrec_main(argc, argv));