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<div class="section" id="time-dependencies">
<span id="index-0"></span>
<div class="line-block">
<div class="line">Sometimes you want a <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-task"><em class="xref std std-term">task</em></a> to run at a given time, or to run every three hours,</div>
<div class="line">or to run only on the first of the month, or on Mondays,...</div>
<div class="line">For that ecFlow supports <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-date"><em class="xref std std-term">date</em></a> and <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-time"><em class="xref std std-term">time</em></a> <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-dependencies"><em class="xref std std-term">dependencies</em></a>.</div>
</div>
<div class="section" id="time">
<span id="id1"></span><h2>time<a class="headerlink" href="#time" title="Permalink to this headline">¶</a></h2>
<div class="line-block">
<div class="line"><a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-time"><em class="xref std std-term">time</em></a> <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-dependencies"><em class="xref std std-term">dependencies</em></a> can be <strong>absolute</strong>, i.e. they will run at the exact time.</div>
<div class="line">They can also be <strong>relative</strong>; in this case we provide the time from the moment the <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-suite"><em class="xref std std-term">suite</em></a> is begun.</div>
<div class="line">Time <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-dependencies"><em class="xref std std-term">dependencies</em></a> can be repeated at regular intervals</div>
</div>
<div class="highlight-python"><pre>time 23:00 # at next 23:00
time 10:00 20:00 01:00 # every hour from 10am to 8pm
time +00:01 # one minute after the begin suite
time +00:10 01:00 00:05 # 10 to 60 minutes after begin every 5 minutes</pre>
</div>
</div>
<div class="section" id="date-or-day">
<span id="id2"></span><h2>date or day<a class="headerlink" href="#date-or-day" title="Permalink to this headline">¶</a></h2>
<div class="line-block">
<div class="line">Date <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-dependencies"><em class="xref std std-term">dependencies</em></a> can be specified using the <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-date"><em class="xref std std-term">date</em></a> or the <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-day"><em class="xref std std-term">day</em></a> keyword.</div>
<div class="line">Date <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-dependencies"><em class="xref std std-term">dependencies</em></a> are always absolute, but wild cards can be used.</div>
</div>
<div class="highlight-python"><pre>date 31.12.2012 # the 31st of December 2012
date 01.*.* # every first of the month
date *.10.* # every day in October
date 1.*.2008 # every first of the month, but only in 2008
day monday # every monday</pre>
</div>
</div>
<div class="section" id="cron">
<span id="id3"></span><h2>cron<a class="headerlink" href="#cron" title="Permalink to this headline">¶</a></h2>
<p>Cron <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-dependencies"><em class="xref std std-term">dependencies</em></a> can be specified using the <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-cron"><em class="xref std std-term">cron</em></a> keyword:</p>
<div class="highlight-python"><pre>cron 23:00 # every day at 23:00
cron 08:00 12:00 01:00 # every hour between 8 and 12
cron -w 0,2 # every sunday and tuesday
cron -d 1,15 # every 1st and 15th of each month
cron -m 1 -d 1 # every first of January</pre>
</div>
<p>A task can have several <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-time"><em class="xref std std-term">time</em></a> and <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-date"><em class="xref std std-term">date</em></a> <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-dependencies"><em class="xref std std-term">dependencies</em></a>. For example:</p>
<div class="highlight-python"><pre>day sunday
day wednesday
date 01.*.* # The first of every month and year
date 10.*.* # The tenth of every month and year
time 01:00
time 16:00</pre>
</div>
<div class="line-block">
<div class="line">The <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-task"><em class="xref std std-term">task</em></a> will run on sunday’s and wednesday’s at 1am and 4pm, but only if</div>
<div class="line">the day is the 1st or the 10th of the month.</div>
</div>
<div class="line-block">
<div class="line">Like <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-trigger"><em class="xref std std-term">trigger</em></a>‘s, <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-date"><em class="xref std std-term">date</em></a> and <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-time"><em class="xref std std-term">time</em></a> <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-dependencies"><em class="xref std std-term">dependencies</em></a> can be set for a <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-family"><em class="xref std std-term">family</em></a>.</div>
<div class="line">In this case, the tasks of this family will only run according to these <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-dependencies"><em class="xref std std-term">dependencies</em></a>.</div>
</div>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p>All time related dependencies(like <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-cron"><em class="xref std std-term">cron</em></a>, <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-time"><em class="xref std std-term">time</em></a>, <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-today"><em class="xref std std-term">today</em></a>, <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-date"><em class="xref std std-term">date</em></a> and <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-day"><em class="xref std std-term">day</em></a>) are relative to the <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-clock"><em class="xref std std-term">clock</em></a> of the <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-suite"><em class="xref std std-term">suite</em></a>.</p>
<p class="last">For more information, see <a class="reference internal" href="/wiki/display/ECFLOW/Dates+and+Clocks#dates-and-clocks"><em>Dates and Clocks</em></a></p>
</div>
</div>
<div class="section" id="text">
<h2>Text<a class="headerlink" href="#text" title="Permalink to this headline">¶</a></h2>
<div class="line-block">
<div class="line">Let us modify the definition file to add a <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-family"><em class="xref std std-term">family</em></a> <strong>f2</strong>.</div>
<div class="line">For brevity we have omitted the previous <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-family"><em class="xref std std-term">family</em></a> <strong>f1</strong></div>
</div>
<div class="highlight-python"><pre># Definition of the suite test
suite test
edit ECF_INCLUDE "$HOME/course" # replace '$HOME' with the path to your home directory
edit ECF_HOME "$HOME/course"
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
endsuite</pre>
</div>
</div>
<div class="section" id="python">
<h2>Python<a class="headerlink" href="#python" title="Permalink to this headline">¶</a></h2>
<p>For brevity we have left out <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-family"><em class="xref std std-term">family</em></a> <strong>f1</strong>. In python this would be:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="c">#!/usr/bin/env python2.7</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_f2</span><span class="p">():</span>
<span class="n">f2</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">"f2"</span><span class="p">)</span>
<span class="n">f2</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="n">f2</span><span class="o">.</span><span class="n">add_task</span><span class="p">(</span><span class="s">"t1"</span><span class="p">)</span><span class="o">.</span><span class="n">add_time</span><span class="p">(</span> <span class="s">"00:30 23:30 00:30"</span> <span class="p">)</span> <span class="c"># start(hh:mm) end(hh:mm) increment(hh:mm)</span>
<span class="n">f2</span><span class="o">.</span><span class="n">add_task</span><span class="p">(</span><span class="s">"t2"</span><span class="p">)</span><span class="o">.</span><span class="n">add_day</span><span class="p">(</span> <span class="s">"sunday"</span> <span class="p">)</span>
<span class="c"># for add_date(): day,month,year; here 0 means every month, and every year</span>
<span class="n">t3</span> <span class="o">=</span> <span class="n">f2</span><span class="o">.</span><span class="n">add_task</span><span class="p">(</span><span class="s">"t3"</span><span class="p">)</span>
<span class="n">t3</span><span class="o">.</span><span class="n">add_date</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span> <span class="c"># day month year, first of every month or every year</span>
<span class="n">t3</span><span class="o">.</span><span class="n">add_time</span><span class="p">(</span> <span class="mi">12</span><span class="p">,</span> <span class="mi">0</span> <span class="p">)</span> <span class="c"># hour, minutes at 12 o'clock</span>
<span class="n">f2</span><span class="o">.</span><span class="n">add_task</span><span class="p">(</span><span class="s">"t4"</span><span class="p">)</span><span class="o">.</span><span class="n">add_time</span><span class="p">(</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="bp">True</span> <span class="p">)</span> <span class="c"># hour, minutes, relative to suite start</span>
<span class="c"># 2 minutes after family f2 start</span>
<span class="n">f2</span><span class="o">.</span><span class="n">add_task</span><span class="p">(</span><span class="s">"t5"</span><span class="p">)</span><span class="o">.</span><span class="n">add_time</span><span class="p">(</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">2</span> <span class="p">)</span> <span class="c"># hour, minutes suite site</span>
<span class="c"># 2 minutes past midnight</span>
<span class="k">return</span> <span class="n">f2</span>
<span class="k">print</span> <span class="s">"Creating suite definition"</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="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_family</span><span class="p">(</span> <span class="n">create_family_f1</span><span class="p">()</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_f2</span><span class="p">()</span> <span class="p">)</span>
<span class="k">print</span> <span class="n">defs</span>
<span class="k">print</span> <span class="s">"Checking job creation: .ecf -> .job0"</span>
<span class="k">print</span> <span class="n">defs</span><span class="o">.</span><span class="n">check_job_creation</span><span class="p">()</span>
<span class="k">print</span> <span class="s">"Checking trigger expressions"</span>
<span class="k">print</span> <span class="n">defs</span><span class="o">.</span><span class="n">check</span><span class="p">()</span>
<span class="k">print</span> <span class="s">"Saving definition to file 'test.def'"</span>
<span class="n">defs</span><span class="o">.</span><span class="n">save_as_defs</span><span class="p">(</span><span class="s">"test.def"</span><span class="p">)</span>
</pre></div>
</div>
<p><strong>What to do:</strong></p>
<ol class="arabic simple">
<li>Make the changes to the <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-suite-definition"><em class="xref std std-term">suite definition</em></a> file</li>
<li>Create all the necessary <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-ecf-script"><em class="xref std std-term">ecf script</em></a>‘s by copying the one from <strong>/test/f1/t7</strong></li>
<li>Load and begin the suite</li>
<li>Once you start the suite some of the task will be immediately <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-complete"><em class="xref std std-term">complete</em></a>. Why?</li>
<li><a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-ecflowview"><em class="xref std std-term">ecflowview</em></a> has a special window to explain why a task is <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-queued"><em class="xref std std-term">queued</em></a>.
Select a <a class="reference internal" href="/wiki/display/ECFLOW/Glossary#term-queued"><em class="xref std std-term">queued</em></a> task and press the <img alt="why" src="../../../_images/why.jpg" /> icon</li>
</ol>
</div>
</div>
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