Overview
Comment:Put in c version + sensitivity computation
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | origin/master | trunk
Files: files | file ages | folders
SHA3-256: 0c5526fe81aa2f571d13982bbaf81f4aba028cfbc5b01ba3e0a0c62e5556ad9d
User & Date: gawthrop@users.sourceforge.net on 2000-05-11 19:32:29
Other Links: branch diff | manifest | tags
Context
2000-05-11
19:33:18
Uniform version for _sim.m check-in: 4f2d6cb2e9 user: gawthrop@users.sourceforge.net tags: origin/master, trunk
19:32:29
Put in c version + sensitivity computation check-in: 0c5526fe81 user: gawthrop@users.sourceforge.net tags: origin/master, trunk
16:09:24
Put in simpar.first parameter check-in: 32494f30de user: gawthrop@users.sourceforge.net tags: origin/master, trunk
Changes
Hide Diffs Side-by-Side Diffs Ignore Whitespace Patch

Modified mttroot/mtt/bin/trans/mtt_make_sim from [ccc5a344ef] to [8e04564d54].

︙
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


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
131
132
133
134
135
136
137
138
139
140
141

142
143
144
145
146








+
+
+





+




-
-
+
+
+
+
+
+













+


-
+


+
+
+
+

-
-
+
+
-
-
-







-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+






-
+


-
+
+
+









-




+

# Copyright (C) 2000 by Peter J. Gawthrop

###############################################################
## Version control history
###############################################################
## $Id$
## $Log$
## Revision 1.1  2000/04/08 10:43:26  peterg
## Initial revision
##
###############################################################

# Tell user
Sys=$1
method=$2
computation=$3

if [ -z "$method" ]; then
    method=implicit    
fi
#
echo  "Creating $1_sim.m with $method integration method"

if [ -n "$computation" ]; then
   blurb="for language $computation"    
fi

echo  "Creating $1_sim.m with $method integration method $blurb"

if [ $method = "implicit" ]; then
    ode=cse
    odeo=cseo
else
    ode=ode
    odeo=odeo
fi

# Find system constants
Nx=`mtt_getsize $Sys x` # States
Nu=`mtt_getsize $Sys u` # Inputs 
Ny=`mtt_getsize $Sys y` # Inputs 
Npar=`wc -l $Sys\_sympar.txt | awk '{print $1}'`

# Header
lang_header -noglobal $1 sim m 'x0,u,t,par' '[y,x]' > $1_sim.m
lang_header -noglobals $1 sim m 'x0,u,t,par,sensitivities' '[y,x]' > $1_sim.m

cat >> $1_sim.m <<EOF
  if nargin<5
    sensitivities = [];
  endif;

  ## Initialise
  ui  = zero_input($Nu);	# Zero the input
  xi = x0;	        # Read in initial state
  [ui]  = zero_input($Nu);	# Zero the input
  [xi] = x0;	        # Read in initial state


  yi = $1_cseo(xi,ui,t(1),par);    # First output

  ##Sizes
  N = length(t);

  ## Initialise  arrays   
  x = zeros($Nx,N);
  y = zeros($Ny,N);
  y(:,1) = yi(:);

  ## Timing parameters
  first = t(1);
  dt = t(2) - t(1);
  last = t(length(t))+dt;
  n_sens = length(sensitivities);
EOF

if [ "$computation" = "c" ]; then
cat >> $1_sim.m <<EOF

  ## Create the command string
  command = "";
  for sensitivity_index = [0 sensitivities]
    args = "";
    for i=1:$Nx
      args = sprintf("%s %g", args, x0(i));
    endfor

    par(sensitivities) = zeros(1,n_sens);
    if sensitivity_index>0
      par(sensitivity_index) = 1;
      i_1 = $Ny/2 + 2;
    else
      i_1 = 2;
    endif;
    i_2 = i_1 + $Ny/2 -1;

    for i=1:$Npar
      args = sprintf("%s %g", args, par(i));
    endfor

    args = sprintf("%s %g %g %g", args, first, dt, last);
  
    command = sprintf("%s ./$1_ode2odes.out %s | cut -f %i-%i;", command, args, i_1, i_2);
  endfor;

command
  ## And execute it ...
  yy=str2num(system(command));
  
  [Ny,My] = size(yy);
  ## Reshape

  Ny/N,N
  y = reshape(yy',N,Ny/N)';  
endfunction

EOF
    
else

cat >> $1_sim.m <<EOF    
  A = zeros($Nx,$Nx);
  Ax = zeros($Nx,1);
  dx = zeros($Nx,1);

  ## Step size
  dt = t(2)-t(1);

  iFirst = first/dt;
  for i = 1:N
    ti = t(i);
    ui = u(i);
    ui = u(:,i);
    yi = $1_cseo(xi,ui,ti,par);    # Output 
    if i>
    y(:,i) = yi;
    x(:,i) = xi;
    dxi = $1_cse(xi,ui,ti,par); # State derivative
    A = $1_smxa(xi,ui,dt,par);	# (I-Adt)
    A = reshape(A,$Nx,$Nx);
    Ax = $1_smxax(xi,ui,dt,par);	# (I-Adt)x
    #open = eval(sprintf("%s_switchopen(x);", system_name));        # Open switches
    #x = mtt_implicit(x,dx,A,Ax,dt,$Nx,zeros(20,1)); # Implicit update
    xi = A\(Ax + dxi*dt);        # Implicit update
    yi = $1_cseo(xi,ui,ti,par);    # Output 
  endfor;			

endfunction
EOF
fi

MTT: Model Transformation Tools
[ GitHub | SourceHut | Sourceforge | Fossil RSS ]