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</style><article id="node-362119" class="node node-logentry article ia-n clearfix" role="article"><header class="node-header"><h1 class="node-title" rel="nofollow">
<a href="https://logbooks.jlab.org/entry/3289375" rel="bookmark">DAQ Testing</a>
</h1>
</header><div class="date-vitals">
<p class="author-datetime">
Lognumber <a href="https://logbooks.jlab.org/entry/3289375" class="lognumber" data-lognumber="3289375">3289375</a>. Submitted by <a href="https://logbooks.jlab.org/user/davidl">davidl</a> on <time datetime="2014-07-10T11:00:18-0400" pubdate="pubdate">Thu, 07/10/2014 - 11:00</time>. </p>
<table class="field-vitals"><tr><th>Logbooks: </th><td><a href="https://logbooks.jlab.org/book/hdlog">HDLOG</a></td></tr><tr><th>Tags: </th><td><a href="https://logbooks.jlab.org/tag/daq">DAQ</a></td></tr><tr><th>Entry Makers: </th><td><a href="mailto:furletov@jlab.org">furletov@jlab.org</a>, gurjyan, timmer, abbottd</td></tr></table></div>
<div class="logentry node-content">
<p>- Initial setup<br />
- Used hdops account already logged into gluon02<br />
- rcm.sh issues command: daq_setups.sh -rcm 50 -s SoftROC<br />
This fails to open any windows. Maybe it does not understand<br />
the “-rcm gluon50” argument (it’s not listed in the usage statement)<br />
- Run “daq_setups.sh -s SoftROC” manually<br />
- Some windows open, but others fail due to “Maximum number of clients reached”<br />
- Did quick web search. Found this page:<br /><a href="https://bugs.launchpad.net/ubuntu/%20source/fglrx-installer/%20bug/910539">https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/910539</a><br />
- The file /etc/ati/atiapfuser.blb on gluon02 had 528 open file descriptors<br />
I renamed it to /etc/ati/atiapfuser.blb.bak, but this didn’t help.<br />
- Closed all windows that were left open and still ran into same error<br />
- Logged out and back in to hdops account on gluon02<br />
- Windows opened OK</p>
<p> - Started SoftROC configuration using rcm.sh.<br />
- Configure succeed<br />
- Download failed due to undefined symbol for evio::evioException<br />
in the /gluex/coda/3.01/Linux/lib/libcodaChannels.so file<br />
- This was due to building mcROL.so with a new Makefile that did<br />
not include the evioxx (or expat) libraries<br />
- Fixed mcROL.so link problems</p>
<p> - Started SoftROC run with internal trigger loop at 10000<br />
- Event rate was 200-300Hz<br />
- Starting hd_ana did not affect event rate as it did last time<br />
- ET event rate was only about 2Hz<br />
- hd_ana event rate also about 2Hz (should have been higher)</p>
<p> - Started SoftROC run with internal trigger loop at 1000<br />
- Event rate was 2kHz<br />
- Starting hd_ana did not affect event rate<br />
- ET event rate was still only about 2Hz<br />
- hd_ana event rate also about 2Hz (should have been higher)<br />
- further debugging needed</p>
<p>- Moving to 50 crate test<br />
- Goals:<br />
* Run on hdops<br />
* Use multi-cast instead of direct<br />
* Run CODA components on different nodes</p>
<p>- Ran 50 ROC configuration with 1k events per chunk in softROCcontroller<br />
- Still using direct mode<br />
- All components running on gluon53<br />
- Event rate ~2kHz<br />
- No change in event rate when hd_ana connected.<br />
- Problem with ET rates appears fixed</p>
<p>- Ran 50 ROC configuration with 5k events per chunk in softROCcontroller<br />
- Event rate was more erratic and within a few seconds, event rate dropped to zero<br />
- No error messages observed indicating exact source of problem</p>
<p>- Ran 50 ROC configuration with 2k events per chunk in softROCcontroller<br />
- Event rate was rock solid at 2kHz. No deviation was observed whatsoever<br />
- Ran for several minutes and ended run</p>
<p>- Switching to multi-cast configuration<br />
- BCAL Data Concentrator dies prior to Configure<br />
- Restarted again and this time it stays alive<br />
- noticed multiple instances of coda_roc running on ROCs (Sergey will fix the bug later)<br />
- Stop all processes and restart</p>
<p> - Need to run on multiple machines when using multi-casting. Reconfigure<br />
to start all EMUs on different hosts. Reconfigure hosts file</p>
<p> - Started all components<br />
- BCAL DC ended again with timeout</p>
<p> - Started all components<br />
- All components connected OK this time<br />
- Configure succeeded<br />
- Download succeeded<br />
- Prestart failed because SEB could not connect to ER’s ET system<br />
- The ET system appears to be setup correctly and can be accessed via<br />
tcp port using hd_ana and et_monitor. Unclear why SEB can’t connect<br />
using multi-cast</p>
<p> - Try again. Shut down all processes and restart<br />
- Configure failed when roctrig1 died<br />
- Restarted shmem_serv on roctrig1<br />
- Killed all components and restarted them<br />
- Configure failed due to same issue with failure to connect to ET system via multi-cast</p>
<p>- Change configuration to use direct for the SEB to ER connection. All others left<br />
as multi-cast<br />
- BCAL DC dies again shortly after startup<br />
- Restart everything once more. BCAL DC connects this time<br />
- SEB to ER direct connection succeeds<br />
- DC to SEB connections using multi-cast fail</p>
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