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root/OpenMD/trunk/src/utils/ProgressBar.cpp
Revision: 1413
Committed: Mon Mar 22 19:21:22 2010 UTC (15 years, 1 month ago) by gezelter
File size: 4588 byte(s)
Log Message:
Adding a progress bar, and pAngle staticProps

File Contents

# Content
1 /*
2 * Copyright (c) 2010 The University of Notre Dame. All Rights Reserved.
3 *
4 * The University of Notre Dame grants you ("Licensee") a
5 * non-exclusive, royalty free, license to use, modify and
6 * redistribute this software in source and binary code form, provided
7 * that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the
15 * distribution.
16 *
17 * This software is provided "AS IS," without a warranty of any
18 * kind. All express or implied conditions, representations and
19 * warranties, including any implied warranty of merchantability,
20 * fitness for a particular purpose or non-infringement, are hereby
21 * excluded. The University of Notre Dame and its licensors shall not
22 * be liable for any damages suffered by licensee as a result of
23 * using, modifying or distributing the software or its
24 * derivatives. In no event will the University of Notre Dame or its
25 * licensors be liable for any lost revenue, profit or data, or for
26 * direct, indirect, special, consequential, incidental or punitive
27 * damages, however caused and regardless of the theory of liability,
28 * arising out of the use of or inability to use software, even if the
29 * University of Notre Dame has been advised of the possibility of
30 * such damages.
31 *
32 * SUPPORT OPEN SCIENCE! If you use OpenMD or its source code in your
33 * research, please cite the appropriate papers when you publish your
34 * work. Good starting points are:
35 *
36 * [1] Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).
37 * [2] Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).
38 * [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).
39 * [4] Vardeman, Stocker & Gezelter, in progress (2010).
40 */
41
42 #include <string>
43 #include <sstream>
44 #include <sys/ioctl.h>
45 #ifdef IS_MPI
46 #include <mpi.h>
47 #endif //is_mpi
48 #include "utils/ProgressBar.hpp"
49
50 namespace OpenMD {
51
52 const char * progressSpinner_ = "|/-\\";
53
54 ProgressBar::ProgressBar() : value_(0.0), maximum_(-1.0), iteration_(0), start_(time(NULL)) {
55 }
56
57 void ProgressBar::clear() {
58 #ifdef IS_MPI
59 if (MPI::COMM_WORLD.Get_rank() == 0) {
60 #endif
61 printf("\n");
62 fflush(stdout);
63 #ifdef IS_MPI
64 }
65 #endif
66 iteration_ = 0;
67 value_ = 0;
68 maximum_ = -1;
69 start_ = time(NULL);
70 }
71
72 void ProgressBar::update() {
73 int width = 80;
74 #ifdef IS_MPI
75 if (MPI::COMM_WORLD.Get_rank() == 0) {
76 #endif
77 #ifndef IS_MPI
78 // get the window width:
79 struct ttysize ts;
80 ioctl(0, TIOCGWINSZ, &ts);
81 width = ts.ts_cols;
82 #endif
83
84 // We'll use:
85 // 31 characters for the completion estimate,
86 // 6 for the % complete,
87 // 2 characters for the open and closing brackets.
88
89 int avail = width - 31 - 6 - 2;
90
91 ++iteration_;
92
93 if (maximum_ > 0.0) {
94 // we know the maximum, so
95 // draw a progress bar
96
97 RealType percent = value_ * 100.0 / maximum_;
98 int hashes = int(percent * avail / 100.0);
99 std::string progressbar;
100 progressbar.assign(hashes, '#');
101
102 // add the spinner to the end of the progress bar:
103 progressbar += progressSpinner_[iteration_ & 3];
104
105 // compute the best estimate of the ending time:
106 time_t current_ = time(NULL);
107 time_t end_ = start_ + (current_ - start_) * (100.0/percent);
108 struct tm * ender = localtime(&end_);
109 char buffer[24];
110 strftime(buffer, 24, "%a %b %d @ %I:%M %p", ender);
111
112 std::stringstream fmt;
113 fmt << "\r%3d%% [%-" << avail << "s] Estimate: %s";
114 std::string st = fmt.str();
115
116 printf(st.c_str(), int(percent),
117 progressbar.c_str(),
118 buffer);
119
120 } else {
121 // we don't know the maximum, so we can't draw a progress bar
122 int center = (iteration_ % 48) + 1; // 50 spaces, minus 2
123 std::string before;
124 std::string after;
125 before.assign(std::max(center - 2, 0), ' ');
126 after.assign(std::min(center + 2, 50), ' ');
127
128 printf("\r[%s###%s] ",
129 before.c_str(), after.c_str());
130 }
131 fflush(stdout);
132 #ifdef IS_MPI
133 }
134 #endif
135 }
136
137 void ProgressBar::setStatus(RealType val, RealType max) {
138 value_ = val;
139 maximum_ = max;
140 }
141 }