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<div class="section" id="limits"> <span id="index-0"></span><span id="id1"></span> <div class="line-block"> <div class="line">We have learnt from experience that suite designers were using <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-trigger"><em class="xref std std-term">trigger</em></a>‘s in</div> <div class="line">two different ways: as data dependency triggers and as courtesy triggers.</div> <div class="line">The former are for what triggers where designed. The latter are used to prevent too</div> <div class="line">many jobs running at once and are actually an artificial way of queueing jobs.</div> </div> <div class="line-block"> <div class="line">Because ECF does not distinguish between the two sorts of triggers, suites can become</div> <div class="line">difficult to maintain after a while. So the concept of <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-limit"><em class="xref std std-term">limit</em></a> was introduced.</div> <div class="line">Limits are declared with the <strong>limit</strong> keyword</div> </div> </div> <div class="section" id="inlimit"> <span id="id2"></span> <div class="line-block"> <div class="line">Limits are used in conjunction with <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-inlimit"><em class="xref std std-term">inlimit</em></a> keyword.</div> <div class="line">Limiting a <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-family"><em class="xref std std-term">family</em></a> will limit all the <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-task"><em class="xref std std-term">task</em></a>‘s in that family.</div> <div class="line">A <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-node"><em class="xref std std-term">node</em></a> can be limited by several limits.</div> </div> <p>Let us modify our <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-suite-definition"><em class="xref std std-term">suite definition</em></a> file:</p> <div class="highlight-python"><pre># Definition of the suite test. suite test edit ECF_INCLUDE "$HOME/course" edit ECF_HOME "$HOME/course" limit l1 2 family f1 edit SLEEP 20 task t1 meter progress 1 100 90 task t2 trigger t1 eq complete event a event b task t3 trigger t2:a task t4 trigger t2 eq complete complete t2:b task t5 trigger t1:progress ge 30 task t6 trigger t1:progress ge 60 task t7 trigger t1:progress ge 90 endfamily family f2 edit SLEEP 20 task t1 time 00:30 23:30 00:30 task t2 day sunday task t3 date 01.*.* time 12:00 task t4 time +00:02 task t5 time 00:02 endfamily family f3 task t1 label info "" endfamily family f4 edit SLEEP 2 repeat string NAME a b c d e f family f5 repeat integer VALUE 1 10 task t1 repeat date DATE 19991230 20000105 label info "" endfamily endfamily family f5 inlimit l1 edit SLEEP 20 task t1 task t2 task t3 task t4 task t5 task t6 task t7 task t8 task t9 endfamily endsuite</pre> </div> <p>In python this would be:</p> <div class="highlight-python"><div class="highlight"><pre><span class="c">#!/usr/bin/env python2.5</span> <span class="kn">import</span> <span class="nn">os</span> <span class="kn">import</span> <span class="nn">ecflow</span> <span class="k">def</span> <span class="nf">create_family_f5</span><span class="p">()</span> <span class="p">:</span> <span class="n">f5</span> <span class="o">=</span> <span class="n">ecflow</span><span class="o">.</span><span class="n">Family</span><span class="p">(</span><span class="s">"f5"</span><span class="p">)</span> <span class="n">f5</span><span class="o">.</span><span class="n">add_inlimit</span><span class="p">(</span><span class="s">"l1"</span><span class="p">)</span> <span class="n">f5</span><span class="o">.</span><span class="n">add_variable</span><span class="p">(</span><span class="s">"SLEEP"</span><span class="p">,</span><span class="mi">20</span><span class="p">)</span> <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="mi">1</span><span class="p">,</span><span class="mi">10</span><span class="p">):</span> <span class="n">f5</span><span class="o">.</span><span class="n">add_task</span><span class="p">(</span> <span class="s">"t"</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">i</span><span class="p">)</span> <span class="p">)</span> <span class="k">return</span> <span class="n">f5</span> <span class="n">defs</span> <span class="o">=</span> <span class="n">ecflow</span><span class="o">.</span><span class="n">Defs</span><span class="p">(</span><span class="s">"test.def"</span><span class="p">)</span> <span class="n">suite</span> <span class="o">=</span> <span class="n">defs</span><span class="o">.</span><span class="n">add_suite</span><span class="p">(</span><span class="s">"test"</span><span class="p">)</span> <span class="n">suite</span><span class="o">.</span><span class="n">add_variable</span><span class="p">(</span><span class="s">"ECF_INCLUDE"</span><span class="p">,</span><span class="n">os</span><span class="o">.</span><span class="n">getenv</span><span class="p">(</span><span class="s">"HOME"</span><span class="p">)</span> <span class="o">+</span> <span class="s">"/course"</span><span class="p">)</span> <span class="n">suite</span><span class="o">.</span><span class="n">add_variable</span><span class="p">(</span><span class="s">"ECF_HOME "</span><span class="p">,</span><span class="n">os</span><span class="o">.</span><span class="n">getenv</span><span class="p">(</span><span class="s">"HOME"</span><span class="p">)</span> <span class="o">+</span> <span class="s">"/course"</span><span class="p">)</span> <span class="n">suite</span><span class="o">.</span><span class="n">add_limit</span><span class="p">(</span><span class="s">"l1"</span><span class="p">,</span><span class="mi">2</span><span class="p">)</span> <span class="n">suite</span><span class="o">.</span><span class="n">add_family</span><span class="p">(</span> <span class="n">create_family_f5</span><span class="p">()</span> <span class="p">)</span> </pre></div> </div> <p>What to do:</p> <ol class="arabic simple"> <li>Edit the changes</li> <li>Play and begin the suite</li> <li>In <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-ecflowview"><em class="xref std std-term">ecFlowview</em></a>, observe the triggers of the <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-limit"><em class="xref std std-term">limit</em></a> <strong>l1</strong></li> <li>Open the Info panel for <strong>l1</strong></li> <li>Change the value of the <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-limit"><em class="xref std std-term">limit</em></a></li> <li>Open the Why? panel for one of the <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-queued"><em class="xref std std-term">queued</em></a> tasks of <strong>/test/f5</strong></li> </ol> </div> |
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