1 /*****************************************************************************
5 ** Purpose: Take projections of a phantom object
6 ** Programmer: Kevin Rosenberg
9 ** This is part of the CTSim program
10 ** Copyright (C) 1983-2000 Kevin Rosenberg
12 ** $Id: phm2rs.cpp,v 1.3 2000/06/08 16:43:10 kevin Exp $
14 ** This program is free software; you can redistribute it and/or modify
15 ** it under the terms of the GNU General Public License (version 2) as
16 ** published by the Free Software Foundation.
18 ** This program is distributed in the hope that it will be useful,
19 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
20 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 ** GNU General Public License for more details.
23 ** You should have received a copy of the GNU General Public License
24 ** along with this program; if not, write to the Free Software
25 ** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 ******************************************************************************/
31 enum { O_PHANTOM, O_DESC, O_NRAY, O_ROTANGLE, O_PHMFILE,
32 O_TRACE, O_VERBOSE, O_HELP, O_DEBUG, O_VERSION };
34 static struct option phm2rs_options[] =
36 {"phantom", 1, 0, O_PHANTOM},
37 {"phmfile", 1, 0, O_PHMFILE},
38 {"desc", 1, 0, O_DESC},
39 {"nray", 1, 0, O_NRAY},
40 {"rotangle", 1, 0, O_ROTANGLE},
41 {"trace", 1, 0, O_TRACE},
42 {"verbose", 0, 0, O_VERBOSE},
43 {"help", 0, 0, O_HELP},
44 {"debug", 0, 0, O_DEBUG},
45 {"version", 0, 0, O_VERSION},
51 phm2rs_usage (const char *program)
54 if (mpi_ct.my_rank == 0)
57 fprintf(stdout,"usage: %s outfile ndet nview [--phantom phantom-name] [--phmfile filename] [OPTIONS]\n", kbasename(program));
58 fprintf(stdout,"Calculate raysums (projections) through phantom object, either\n");
59 fprintf(stdout,"a predefined --phantom or a --phmfile\n");
61 fprintf(stdout," outfile Name of output file for raysums\n");
62 fprintf(stdout," ndet Number of detectors\n");
63 fprintf(stdout," nview Number of rotated views\n");
64 fprintf(stdout," --phantom Phantom to use for projection\n");
65 fprintf(stdout," herman Herman head phantom\n");
66 fprintf(stdout," rowland Rowland head phantom\n");
67 fprintf(stdout," browland Bordered Rowland head phantom\n");
68 fprintf(stdout," unitpulse Unit pulse phantom\n");
69 fprintf(stdout," --phmfile Get Phantom from phantom file\n");
70 fprintf(stdout," --desc Description of raysum\n");
71 fprintf(stdout," --nray Number of rays per detector (default = 1)\n");
72 fprintf(stdout," --rotangle Degrees to rotate view through, multiple of PI (default = 1)\n");
73 fprintf(stdout," --trace Trace level to use\n");
74 fprintf(stdout," none No tracing (default)\n");
75 fprintf(stdout," text Trace text level\n");
76 fprintf(stdout," phm Trace phantom image\n");
77 fprintf(stdout," rays Trace rays\n");
78 fprintf(stdout," plot Trace plot\n");
79 fprintf(stdout," clipping Trace clipping\n");
80 fprintf(stdout," --verbose Verbose mode\n");
81 fprintf(stdout," --debug Debug mode\n");
82 fprintf(stdout," --version Print version\n");
83 fprintf(stdout," --help Print this help message\n");
91 void mpi_gather_rs (RAYSUM *rs_global, RAYSUM *rs_local, const int opt_debug);
95 phm2rs_main (const int argc, char *const argv[])
99 RAYSUM *rs_global = NULL;
100 char str[256], *opt_outfile = NULL, opt_desc[MAXREMARK+1];
101 char opt_phmfilename[256];
102 char *endptr, *endstr;
103 int opt_ndet, opt_nview;
105 int opt_trace = 0, opt_phmnum = -1;
108 double opt_rotangle = 1;
109 double time_start = 0, time_end = 0;
112 time_start = td_current_sec();
116 char **mpi_argv = (char **) argv;
117 double mpi_t1 = 0, mpi_t2 = 0, mpi_t, mpi_t_g;
119 MPI::Init (mpi_argc, mpi_argv);
120 mpi_ct.comm = MPI::COMM_WORLD.Dup ();
121 mpi_ct.nproc = mpi_ct.comm.Get_size();
122 mpi_ct.my_rank = mpi_ct.comm.Get_rank();
124 if (mpi_ct.nproc > CT_MPI_MAX_PROCESS) {
125 sys_error(ERR_FATAL, "Number of mpi processes (%d) exceeds max processes (%d)",
126 mpi_ct.nproc, CT_MPI_MAX_PROCESS);
129 time_start = MPI::Wtime();
133 if (mpi_ct.my_rank == 0) {
135 strcpy(opt_desc, "");
136 strcpy(opt_phmfilename, "");
138 int c = getopt_long(argc, argv, "", phm2rs_options, NULL);
147 if ((opt_phmnum = opt_set_phantom (optarg)) < 0) {
148 phm2rs_usage(argv[0]);
151 phm = phm_create (opt_phmnum);
155 if (mpi_ct.my_rank == 0)
156 fprintf(stderr, "Can not read phantom from file in MPI mode\n");
159 strncpy(opt_phmfilename, optarg, sizeof(opt_phmfilename));
160 phm = phm_create_from_file(opt_phmfilename);
170 if ((opt_trace = opt_set_trace(optarg)) < 0) {
171 phm2rs_usage(argv[0]);
176 strncpy(opt_desc, optarg, sizeof(opt_desc));
179 opt_rotangle = strtod(optarg, &endptr);
180 endstr = optarg + strlen(optarg);
181 if (endptr != endstr) {
182 fprintf(stderr,"Error setting --rotangle to %s\n", optarg);
183 phm2rs_usage(argv[0]);
188 opt_nray = strtol(optarg, &endptr, 10);
189 endstr = optarg + strlen(optarg);
190 if (endptr != endstr) {
191 fprintf(stderr,"Error setting --nray to %s\n", optarg);
192 phm2rs_usage(argv[0]);
198 fprintf(stdout, "Version %s\n", VERSION);
200 fprintf(stderr, "Unknown version number");
205 phm2rs_usage(argv[0]);
208 phm2rs_usage(argv[0]);
214 fprintf(stderr, "No phantom defined\n");
215 phm2rs_usage(argv[0]);
218 if (optind + 3 != argc) {
219 phm2rs_usage(argv[0]);
223 opt_outfile = argv[optind];
224 opt_ndet = strtol(argv[optind+1], &endptr, 10);
225 endstr = argv[optind+1] + strlen(argv[optind+1]);
226 if (endptr != endstr) {
227 fprintf(stderr,"Error setting --ndet to %s\n", argv[optind+1]);
228 phm2rs_usage(argv[0]);
231 opt_nview = strtol(argv[optind+2], &endptr, 10);
232 endstr = argv[optind+2] + strlen(argv[optind+2]);
233 if (endptr != endstr) {
234 fprintf(stderr,"Error setting --nview to %s\n", argv[optind+2]);
235 phm2rs_usage(argv[0]);
239 snprintf(str, sizeof(str),
240 "Raysum_Collect: NDet=%d, Nview=%d, NRay=%d, RotAngle=%.2f, ",
241 opt_ndet, opt_nview, opt_nray, opt_rotangle);
242 if (opt_phmfilename[0]) {
243 strncat(str, "Phantom=", sizeof(str));
244 strncat(str, opt_phmfilename, sizeof(str));
245 } else if (opt_phmnum != -1) {
246 strncat(str, "Phantom=", sizeof(str));
247 strncat(str, name_of_phantom(opt_phmnum), sizeof(str));
250 strncat(str, ": ", sizeof(str));
251 strncat(str, opt_desc, sizeof(str));
253 strncpy(opt_desc, str, sizeof(opt_desc));
259 mpi_ct.comm.Barrier ();
260 mpi_ct.comm.Bcast (&opt_rotangle, 1, MPI::DOUBLE, 0);
261 mpi_ct.comm.Bcast (&opt_nview, 1, MPI::INT, 0);
262 mpi_ct.comm.Bcast (&opt_ndet, 1, MPI::INT, 0);
263 mpi_ct.comm.Bcast (&opt_nray, 1, MPI::INT, 0);
264 mpi_ct.comm.Bcast (&opt_phmnum, 1, MPI::INT, 0);
265 mpi_ct.comm.Bcast (&opt_verbose, 1, MPI::INT, 0);
266 mpi_ct.comm.Bcast (&opt_debug, 1, MPI::INT, 0);
267 mpi_ct.comm.Bcast (&opt_trace, 1, MPI::INT, 0);
269 if (mpi_ct.my_rank > 0 && opt_phmnum >= 0)
270 phm = phm_create (opt_phmnum);
274 det = detector_create (phm, DETECTOR_PARALLEL, opt_ndet, opt_nview, opt_nray, opt_rotangle);
277 mpi_ct_calc_work_units(opt_nview);
278 if (mpi_ct.my_rank == 0) {
279 rs_global = raysum_create_from_det (opt_outfile, det);
280 raysum_alloc_views(rs_global);
283 rs_local = raysum_create_from_det (NULL, det);
284 rs_local->nview = mpi_ct.local_work_units[mpi_ct.my_rank];
286 printf("rs_local->nview = %d (process %d)\n", rs_local->nview, mpi_ct.my_rank);
289 mpi_t1 = MPI::Wtime();
290 raysum_collect (rs_local, det, phm, mpi_ct.start_work_unit[mpi_ct.my_rank], opt_trace, FALSE);
292 mpi_t2 = MPI::Wtime();
293 mpi_t = mpi_t2 - mpi_t1;
294 mpi_ct.comm.Reduce(&mpi_t, &mpi_t_g, 1, MPI::DOUBLE, MPI::MAX, 0);
295 if (mpi_ct.my_rank == 0)
296 printf("Time to collect rs = %f secs, Max = %f secs\n", mpi_t, mpi_t_g);
300 mpi_t1 = MPI::Wtime();
301 mpi_gather_rs(rs_global, rs_local, opt_debug);
303 mpi_t2 = MPI::Wtime();
304 mpi_t = mpi_t2 - mpi_t1;
305 mpi_ct.comm.Reduce(&mpi_t, &mpi_t_g, 1, MPI::DOUBLE, MPI::MAX, 0);
306 if (mpi_ct.my_rank == 0)
307 printf("Time to gather rs = %f secs, Max = %f secs\n", mpi_t, mpi_t_g);
310 rs_global = raysum_create_from_det (opt_outfile, det);
311 raysum_collect (rs_global, det, phm, 0, opt_trace, FALSE);
315 time_end = td_current_sec();
317 time_end = MPI::Wtime();
318 if (mpi_ct.my_rank == 0)
321 rs_global->calctime = time_end - time_start;
322 strncpy (rs_global->remark, opt_desc, sizeof(rs_global->remark));
324 fprintf(stdout, "Remark: %s\n", rs_global->remark);
325 fprintf(stdout, "Time active = %.2f secs\n", rs_global->calctime);
330 if (mpi_ct.my_rank == 0)
333 raysum_write (rs_global);
334 raysum_close (rs_global);
348 * Gather's raysums from all processes in rs_local in rs_global in process 0
352 void mpi_gather_rs (RAYSUM *rs_global, RAYSUM *rs_local, const int opt_debug)
358 end_work_unit = mpi_ct.local_work_units[mpi_ct.my_rank] - 1;
359 for (iw = 0; iw <= end_work_unit; iw++) {
360 mpi_ct.comm.Send(&rs_local->view[iw]->view_angle, 1, MPI::DOUBLE, 0, 0);
361 mpi_ct.comm.Send(&rs_local->view[iw]->ndet, 1, MPI::INT, 0, 0);
362 mpi_ct.comm.Send(rs_local->view[iw]->detval, rs_local->ndet, MPI::FLOAT, 0, 0);
365 if (mpi_ct.my_rank == 0) {
366 for (iproc = 0; iproc < mpi_ct.nproc; iproc++) {
367 end_work_unit = mpi_ct.start_work_unit[iproc]
368 + mpi_ct.local_work_units[iproc]
372 fprintf(stdout, "Recv rs data from process %d\n", iproc);
374 for (iw = mpi_ct.start_work_unit[iproc]; iw <= end_work_unit; iw++) {
377 mpi_ct.comm.Recv(&rs_global->view[iw]->view_angle, 1, MPI::DOUBLE, iproc, 0, status);
378 mpi_ct.comm.Recv(&rs_global->view[iw]->ndet, 1, MPI::INT, iproc, 0, status);
379 mpi_ct.comm.Recv(rs_global->view[iw]->detval, rs_global->ndet, MPI::FLOAT, iproc, 0, status);
390 main (const int argc, char *const argv[])
392 return (phm2rs_main(argc, argv));