-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathTAC_GEN_TECHNICAL_OPERATION_PAGE.html
130 lines (128 loc) · 7.88 KB
/
TAC_GEN_TECHNICAL_OPERATION_PAGE.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.17"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>TAC V0.0.4 @ 2021.04.07: How time-aware simulation works</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(document).ready(function() { init_search(); });
/* @license-end */
</script>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
extensions: ["tex2jax.js", "TeX/AMSmath.js", "TeX/AMSsymbols.js"],
jax: ["input/TeX","output/HTML-CSS"],
});
</script>
<script type="text/javascript" async="async" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="TACdoxy.css" rel="stylesheet" type="text/css">
<!-- -->
<script type="text/javascript" src="TAC_navtree_hacks.js"></script>
</head>
<body>
<div style="background:#FFDDDD;font-size:120%;text-align:center;margin:0;padding:5px">Please, help us to better know about our user community by answering the following short survey: <a href="https://forms.gle/wpyrxWi18ox9Z5ae9">https://forms.gle/wpyrxWi18ox9Z5ae9</a></div>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectlogo"><img alt="Logo" src="TAC_Logo.png"/></td>
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname"><a href="https://[email protected]/jvegh/timeawarecomputingsimulator">TAC V0.0.4 @ 2021.04.07</a>
</div>
</td>
<td> <div id="MSearchBox" class="MSearchBoxInactive">
<span class="left">
<img id="MSearchSelect" src="search/mag_sel.png"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
alt=""/>
<input type="text" id="MSearchField" value="Search" accesskey="S"
onfocus="searchBox.OnSearchFieldFocus(true)"
onblur="searchBox.OnSearchFieldFocus(false)"
onkeyup="searchBox.OnSearchFieldChange(event)"/>
</span><span class="right">
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.17 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "search",false,'Search');
/* @license-end */
</script>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(document).ready(function(){initNavTree('TAC_GEN_TECHNICAL_OPERATION_PAGE.html',''); initResizable(); });
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div class="PageDoc"><div class="header">
<div class="headertitle">
<div class="title">How time-aware simulation works </div> </div>
</div><!--header-->
<div class="contents">
<div class="textblock"><p>In this section the main principles and technical (programming) solutions are discussed.</p>
<h1><a class="anchor" id="TAC_GEN_TECHNICAL_OPERATION_SYSTEMC"></a>
The event handling</h1>
<p>The simulator is based on SystemC <a class="el" href="citelist.html#CITEREF_SystemCBook:2010">[2]</a>. On one side, it is class library, otherwise purely C++. On the other side, it provides and <a class="el" href="GLOSSARY.html#GLOSSARY_OS">OS</a> independent engine, which is very useful in simulating processes happening on quite different timescales, from femtoseconds in physical processes to year millions in geology. The major point is that it <em>separates the simulated time from the actual computer utilization time</em>. The simulated time is defined in the program, and during the operation, the processes happen exactly at the expected simulation times. The processes are started by special signals (called events) and they send another signal when they finished the calulation, enabling synchronizing the processes to each other.</p>
<h1><a class="anchor" id="TAC_GEN_TECHNICAL_OPERATION_TIME_AWARE"></a>
Time awareness</h1>
<p>The time is considered as quasi-continuous: there are short time periods within which the events "happen az the same time". The simulator provides an engine which schedules the events in a proper way, and the takes the events in the order as they follow, maxbe several events "at the same time". At any time periods, is is a little falsification that the events happen "at the same time"; there are event that happen "at zero time later", just to keep logical dependency. This is hows time awareness can be implemented in the time-unaware paradigm.</p>
<p>The need for having events to occur "at the same time, but at zero time later" originates from that in reality, in contrast with the assumption of "instant interaction", some transfer time is needed from one computing object to the other. Our simulator extends this handling, and introduces an artificial delay. According to that, the results are send only at a later time (corresponding to the physical distance of the objects and signal's propagation speed). Given that signal propagation speed in biology is several millions lower than that in electronic technology <a class="el" href="citelist.html#CITEREF_VeghIntroducingTemporalBehaviorScience:2020">[9]</a>, this delay leads to significant difference in the operation of neuronal objects, both inside neurons and especially in neuronal networks <a class="el" href="citelist.html#CITEREF_RoleOfInformationTransferSpeed:2021">[8]</a>. Among others, the temporal behavior explains how information is stored and how short-time and life-long learning works. </p>
</div></div><!-- contents -->
</div><!-- PageDoc -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="footer">Generated on Wed Apr 7 2021 15:24:23 for TAC V0.0.4 @ 2021.04.07 by
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.17 </li>
</ul>
</div>
</body>
</html>