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51  <h1>Source code for sas.perspectives.fitting.fit_thread</h1><div class="highlight"><pre>
52<span class="kn">import</span> <span class="nn">sys</span>
53<span class="kn">import</span> <span class="nn">time</span>
54<span class="kn">from</span> <span class="nn">sas.data_util.calcthread</span> <span class="kn">import</span> <span class="n">CalcThread</span>
55
56<span class="k">def</span> <span class="nf">map_getattr</span><span class="p">(</span><span class="n">classInstance</span><span class="p">,</span> <span class="n">classFunc</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">):</span>
57<div class="viewcode-block" id="map_getattr"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.fitting.html#sas.perspectives.fitting.fit_thread.map_getattr">[docs]</a>    <span class="sd">&quot;&quot;&quot;</span>
58<span class="sd">    Take an instance of a class and a function name as a string.</span>
59<span class="sd">    Execute class.function and return result</span>
60<span class="sd">    &quot;&quot;&quot;</span>
61    <span class="k">return</span>  <span class="nb">getattr</span><span class="p">(</span><span class="n">classInstance</span><span class="p">,</span><span class="n">classFunc</span><span class="p">)(</span><span class="o">*</span><span class="n">args</span><span class="p">)</span>
62
63<span class="k">def</span> <span class="nf">map_apply</span><span class="p">(</span><span class="n">arguments</span><span class="p">):</span></div>
64<div class="viewcode-block" id="map_apply"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.fitting.html#sas.perspectives.fitting.fit_thread.map_apply">[docs]</a>    <span class="k">return</span> <span class="nb">apply</span><span class="p">(</span><span class="n">arguments</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">arguments</span><span class="p">[</span><span class="mi">1</span><span class="p">:])</span>
65
66<span class="k">class</span> <span class="nc">FitThread</span><span class="p">(</span><span class="n">CalcThread</span><span class="p">):</span></div>
67<div class="viewcode-block" id="FitThread"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.fitting.html#sas.perspectives.fitting.fit_thread.FitThread">[docs]</a>    <span class="sd">&quot;&quot;&quot;Thread performing the fit &quot;&quot;&quot;</span>
68   
69    <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> 
70                 <span class="n">fn</span><span class="p">,</span>
71                 <span class="n">page_id</span><span class="p">,</span>
72                 <span class="n">handler</span><span class="p">,</span>
73                 <span class="n">batch_outputs</span><span class="p">,</span>
74                 <span class="n">batch_inputs</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
75                 <span class="n">pars</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span>
76                 <span class="n">completefn</span> <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
77                 <span class="n">updatefn</span>   <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
78                 <span class="n">yieldtime</span>  <span class="o">=</span> <span class="mf">0.03</span><span class="p">,</span>
79                 <span class="n">worktime</span>   <span class="o">=</span> <span class="mf">0.03</span><span class="p">,</span>
80                 <span class="n">ftol</span>       <span class="o">=</span> <span class="bp">None</span><span class="p">,</span>
81                 <span class="n">reset_flag</span> <span class="o">=</span> <span class="bp">False</span><span class="p">):</span>
82        <span class="n">CalcThread</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span>
83                 <span class="n">completefn</span><span class="p">,</span>
84                 <span class="n">updatefn</span><span class="p">,</span>
85                 <span class="n">yieldtime</span><span class="p">,</span>
86                 <span class="n">worktime</span><span class="p">)</span>
87        <span class="bp">self</span><span class="o">.</span><span class="n">handler</span> <span class="o">=</span> <span class="n">handler</span>
88        <span class="bp">self</span><span class="o">.</span><span class="n">fitter</span> <span class="o">=</span> <span class="n">fn</span>
89        <span class="bp">self</span><span class="o">.</span><span class="n">pars</span> <span class="o">=</span> <span class="n">pars</span>
90        <span class="bp">self</span><span class="o">.</span><span class="n">batch_inputs</span> <span class="o">=</span> <span class="n">batch_inputs</span>
91        <span class="bp">self</span><span class="o">.</span><span class="n">batch_outputs</span> <span class="o">=</span> <span class="n">batch_outputs</span>
92        <span class="bp">self</span><span class="o">.</span><span class="n">page_id</span> <span class="o">=</span> <span class="n">page_id</span>
93        <span class="bp">self</span><span class="o">.</span><span class="n">starttime</span> <span class="o">=</span> <span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span>
94        <span class="bp">self</span><span class="o">.</span><span class="n">updatefn</span> <span class="o">=</span> <span class="n">updatefn</span>
95        <span class="c">#Relative error desired in the sum of squares.</span>
96        <span class="bp">self</span><span class="o">.</span><span class="n">ftol</span> <span class="o">=</span> <span class="n">ftol</span>
97        <span class="bp">self</span><span class="o">.</span><span class="n">reset_flag</span> <span class="o">=</span> <span class="n">reset_flag</span>
98   
99    <span class="k">def</span> <span class="nf">isquit</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
100<div class="viewcode-block" id="FitThread.isquit"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.fitting.html#sas.perspectives.fitting.fit_thread.FitThread.isquit">[docs]</a>        <span class="sd">&quot;&quot;&quot;</span>
101<span class="sd">        :raise KeyboardInterrupt: when the thread is interrupted</span>
102<span class="sd">        </span>
103<span class="sd">        &quot;&quot;&quot;</span>
104        <span class="k">try</span><span class="p">:</span>
105            <span class="n">CalcThread</span><span class="o">.</span><span class="n">isquit</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
106        <span class="k">except</span> <span class="ne">KeyboardInterrupt</span><span class="p">:</span>
107            <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;Fitting: terminated by the user.&quot;</span>
108            <span class="k">raise</span> <span class="ne">KeyboardInterrupt</span><span class="p">,</span> <span class="n">msg</span>
109       
110    <span class="k">def</span> <span class="nf">compute</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span></div>
111<div class="viewcode-block" id="FitThread.compute"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.fitting.html#sas.perspectives.fitting.fit_thread.FitThread.compute">[docs]</a>        <span class="sd">&quot;&quot;&quot;</span>
112<span class="sd">        Perform a fit </span>
113<span class="sd">        &quot;&quot;&quot;</span>
114        <span class="n">msg</span> <span class="o">=</span> <span class="s">&quot;&quot;</span>
115        <span class="k">try</span><span class="p">:</span>
116            <span class="kn">import</span> <span class="nn">copy</span>
117            <span class="n">list_handler</span> <span class="o">=</span> <span class="p">[]</span>
118            <span class="n">list_curr_thread</span> <span class="o">=</span> <span class="p">[]</span> 
119            <span class="n">list_ftol</span> <span class="o">=</span> <span class="p">[]</span>
120            <span class="n">list_reset_flag</span> <span class="o">=</span> <span class="p">[]</span>
121            <span class="n">list_map_get_attr</span> <span class="o">=</span> <span class="p">[]</span>
122            <span class="n">list_fit_function</span> <span class="o">=</span> <span class="p">[]</span>
123            <span class="n">list_q</span> <span class="o">=</span> <span class="p">[]</span>
124            <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">fitter</span><span class="p">)):</span>
125                <span class="n">list_handler</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">handler</span><span class="p">)</span>
126                <span class="n">list_q</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">None</span><span class="p">)</span>
127                <span class="n">list_curr_thread</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
128                <span class="n">list_ftol</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">ftol</span><span class="p">)</span>
129                <span class="n">list_reset_flag</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">reset_flag</span><span class="p">)</span>
130                <span class="n">list_fit_function</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="s">&#39;fit&#39;</span><span class="p">)</span>
131                <span class="n">list_map_get_attr</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">map_getattr</span><span class="p">)</span>
132            <span class="c">#from multiprocessing import Pool</span>
133            <span class="n">inputs</span> <span class="o">=</span> <span class="nb">zip</span><span class="p">(</span><span class="n">list_map_get_attr</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">fitter</span><span class="p">,</span> <span class="n">list_fit_function</span><span class="p">,</span>
134                         <span class="n">list_q</span><span class="p">,</span> <span class="n">list_q</span><span class="p">,</span> <span class="n">list_handler</span><span class="p">,</span><span class="n">list_curr_thread</span><span class="p">,</span><span class="n">list_ftol</span><span class="p">,</span>
135                         <span class="n">list_reset_flag</span><span class="p">)</span>
136            <span class="n">result</span> <span class="o">=</span>  <span class="nb">map</span><span class="p">(</span><span class="n">map_apply</span><span class="p">,</span> <span class="n">inputs</span><span class="p">)</span>
137   
138            <span class="bp">self</span><span class="o">.</span><span class="n">complete</span><span class="p">(</span><span class="n">result</span><span class="o">=</span><span class="n">result</span><span class="p">,</span>
139                          <span class="n">batch_inputs</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">batch_inputs</span><span class="p">,</span>
140                          <span class="n">batch_outputs</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">batch_outputs</span><span class="p">,</span>
141                          <span class="n">page_id</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">page_id</span><span class="p">,</span>
142                          <span class="n">pars</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">pars</span><span class="p">,</span>
143                          <span class="n">elapsed</span><span class="o">=</span><span class="n">time</span><span class="o">.</span><span class="n">time</span><span class="p">()</span><span class="o">-</span><span class="bp">self</span><span class="o">.</span><span class="n">starttime</span><span class="p">)</span>
144           
145        <span class="k">except</span> <span class="ne">KeyboardInterrupt</span><span class="p">,</span> <span class="n">msg</span><span class="p">:</span>
146            <span class="c"># Thread was interrupted, just proceed and re-raise.</span>
147            <span class="c"># Real code should not print, but this is an example...</span>
148            <span class="c">#print &quot;keyboard exception&quot;</span>
149            <span class="c">#Stop on exception during fitting. Todo: need to put </span>
150            <span class="c">#some mssg and reset progress bar.</span>
151           
152            <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">handler</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
153                <span class="bp">self</span><span class="o">.</span><span class="n">handler</span><span class="o">.</span><span class="n">stop</span><span class="p">(</span><span class="n">msg</span><span class="o">=</span><span class="n">msg</span><span class="p">)</span>
154        <span class="k">except</span><span class="p">:</span>
155            <span class="kn">import</span> <span class="nn">traceback</span>
156            <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">handler</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span>
157                <span class="bp">self</span><span class="o">.</span><span class="n">handler</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="n">msg</span><span class="o">=</span><span class="n">traceback</span><span class="o">.</span><span class="n">format_exc</span><span class="p">())</span>
158           
159       
160   
161</pre></div></div></div>
162
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