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  40m Log, Page 112 of 339  Not logged in ELOG logo
ID Date Author Type Category Subject Text Attachments
  11445   Fri Jul 24 20:32:15 2015 ericqUpdateElectronicsLSC LO distribution box power button replaced As happened with the RF distribution box
in the IOO rack a while back, the shiny blue
power button in the LSC LO distribution box
 2015-07-24_15.43.56.jpg2015-07-24_16.57.19.jpg 
  11444   Fri Jul 24 18:12:52 2015 Max IsiUpdateGeneralData missingFor the past couple of days, the summary
pages have shown minute trend data disappear
at 12:00 UTC (05:00 AM local time). This
 C1-ALL_FBDB3F_TIMESERIES-1121731217-86400.png 
  11443   Fri Jul 24 13:49:09 2015 SteveUpdatesafetyLock doors please !Thursday morning I found the control room
emergency exit not locked.

Please check the doors when leaving
  
  11442   Thu Jul 23 21:12:14 2015 IgnacioUpdateGeneralNewer accelerometer huddle test data + detrendingIn the last post concerning the self noise
of the accelerometers, I mentioned the differences
between the two data sets I was playing with.
 old_data_1.pngold_data_2.pngnew_data.pngsix_old_data.png 
  11441   Thu Jul 23 20:57:15 2015 JessicaSummaryGeneralApplying Pre-filter to data before IIR Wiener FilteringI updated my bandpass filter and have  BodePlot.pngacc_bandpass.pngmcl_seis.png 
  11440   Thu Jul 23 20:54:42 2015 JessicaUpdateGeneralALS Delay Line BoxThe front panels for the ALS delay   
  11439   Thu Jul 23 15:41:41 2015 SteveUpdatePEMfitting ants with TERROPasadena got 0.2" of  rain on
Saturday. Temperatures were high with high
humidity since than.The ants were back in
  
  11438   Thu Jul 23 03:09:05 2015 ericqUpdateLSCaLIGO demod board lives!I'm a little mystified. Peeking inside
the aLIGO demod board, I saw that the reason
that two of the channels weren't working
 beatbox_vs_aLIGO.png 
  11437   Wed Jul 22 22:06:42 2015 EveSummarySummary PagesFuture summary pages improvements- CDS Tab

We want to monitor the status of the
  
  11436   Wed Jul 22 15:09:40 2015 ericqUpdateGeneralIMC workThe other night, I spent some time with
the mode cleaner. 

First, I made some model changes
  
  11435   Wed Jul 22 14:10:04 2015 ericqUpdateCDSRCG DiagnosticsNow that we've seemed to landed on
a working configuration, I've re-ran
the tests first described in ELOG
 filterShapes.pngCDS_diag_codes.zip 
  11434   Tue Jul 21 21:33:22 2015 Max IsiUpdateGeneralSummary pages moved to 40m LDAS accountThe summary pages are now generated from
the new 40m
LDAS account. The nodus URL (https://nodus.ligo.caltech.edu:30889/detcharsummary/)
  
  11433   Tue Jul 21 21:25:18 2015 Max IsiUpdateGeneral40m LDAS accountA shared LIGO Data Grid (LDG) account was
created for use by the 40m lab. The purpose
of this account is to provide access to the
  
  11432   Tue Jul 21 05:17:09 2015 IgnacioUpdateGeneralMore clear accelerometer huddle tests resultsI generated the following plots from the
two sets of huddle test data we have for
the accelerometers. 
 new_data.pngnew_data.pngold_data_1.pngold_data_1.pngold_data_2.png 
  11431   Mon Jul 20 16:45:15 2015 Max IsiConfigurationGeneralSummary page c1sus.ini error correctedBad syntax errors in the c1sus.ini config
file were causing the summary pages to crash:
a plot type had not been indicated for plots
  
  11430   Mon Jul 20 11:57:17 2015 ericqUpdateGeneralArm Locking recoveredThe interferometer is warming up!

I had some issues locking the IMC
at first. It turned out that the MC3 side
  
  11429   Sat Jul 18 16:59:01 2015 jamieUpdateCDSunloaded, turned off loading of, symmetricom kernel module on fbfb has been loading a 'symmetricom'
kernel module, presumably because it was
once being used to help with timing. 
  
  11428   Sat Jul 18 16:03:00 2015 jamieUpdateCDSEPICS freezes persistI notice that the periodic EPICS freezes
persist.  They last for 5-10 seconds. 
MEDM completely freezes up, but then it comes
  
  11427   Sat Jul 18 15:37:19 2015 JamieSummaryCDSCDS upgrade: current statusSo it appears we have found a semi-stable
configuration for the DAQ system post upgrade:

 cds-good.pngsus-damped.png 
  11426   Sat Jul 18 14:55:33 2015 jamieUpdateGeneralall front ends back up and runningAfter some surgery yesterday the front
ends are all back up and running:


Eric found that one of
 cds-good.png 
  11425   Sat Jul 18 06:12:07 2015 IgnacioUpdateGeneralMCL Wiener filtering + FIR to IIR conversion using vectfit (Update)(updateAfter Eric gave me feedback on my
previous elog post, I went back and fixed
some of the silly stuff I stated.
 15x 
  11424   Fri Jul 17 04:56:37 2015 IgnacioUpdateGeneralMCL Wiener filtering + FIR to IIR conversion using vectfit 

We took data for the mode cleaner
a while ago, June 30th I believe. This data
 9x 
  11423   Fri Jul 17 02:46:07 2015 IgnacioUpdateGeneralNew huddle test data for Wilcoxon 731A resultsOn Thursday, new huddle test data for the
Wilcoxon 731A was aquired by Eric. 

The difference between this new
 6x 
  11422   Thu Jul 16 16:46:18 2015 ericqUpdateGeneralStarting IFO recovery, DAC troublesJamie showed me how to use the SDF system.
We created new safe.snap files
for all of the running models based on the
  
  11421   Thu Jul 16 16:33:56 2015 JessicaUpdateGeneralAdded Bode Plots of Bandpass FilterI updated the bandpass filter I was using,
finding that having different stopband attenuations
before and after the passband better
 acc1_update.pngacc2_update.pngacc3_update.pngbp_BodeMag.pngbp_BodePhase.png 
  11420   Thu Jul 16 11:18:37 2015 jamieUpdateGeneralStarting IFO recovery, DAC troubles


  
  11419   Thu Jul 16 03:01:57 2015 ericqUpdateLSCOld beatbox hooked back upI was having issues trying to get reasonable
noise performance out of the aLIGO demod
board as an ALS DFD. Terminating the inputs
 beat_comparison.pngaLIGO_vs_beatbox.xml.zip 
  11418   Thu Jul 16 01:04:21 2015 ericqUpdateGeneralStarting IFO recovery, DAC troublesI've been trying to start recovering
IFO functionality, but quickly hit a frustrating
roadblock. 
  
  11417   Wed Jul 15 18:19:12 2015 JamieSummaryCDSCDS upgrade: tentative stabilty?Keith Thorne provided his eyes on the situation
today and had some suggestions that might
have helped things
  
  11416   Wed Jul 15 17:05:06 2015 JessicaUpdateGeneralBandpass Pre-Filter createdI applied a bandpass filter to the accelerometer
huddle data as a pre-filter. The passband
was from 5 Hz to 20 Hz. I found that
 acc1.pngacc2.pngacc3.png 
  11415   Wed Jul 15 13:19:14 2015 JamieSummaryCDSCDS upgrade: reducing mx end-points as last ditch effortI tried one last thing, suggested by Keith
and Gerrit.  I tried reducing the number
of mx end-points on fb to zero, which should
  
  11414   Tue Jul 14 17:14:23 2015 EveSummarySummary PagesFuture summary pages improvementsHere is a list of suggested improvements
to the summary pages. Let me know if there's
something you'd like for me to add to
  
  11413   Tue Jul 14 17:06:00 2015 jamieUpdateCDSrunning test on daqd, please leave undisturbedI have reverted daqd to the previous configuration,
so that it's writing frames to disk. 
It's still showing instability.
  
  11412   Tue Jul 14 16:51:01 2015 JamieSummaryCDSCDS upgrade: problem is not disk accessI think I have now determined once and
for all that the daqd problems are NOT due
to disk IO contention.
  
  11411   Tue Jul 14 16:47:18 2015 EveUpdateSummary PagesSummary page updates continue during upgradeI've continued to make changes to the
summary pages on my own environment, which
I plan on implementing on the main summary
  
  11410   Tue Jul 14 13:55:28 2015 jamieUpdateCDSrunning test on daqd, please leave undisturbedI'm running a test with daqd right
now, so please do not disturb for the moment.

I'm
temporarily writing frames into a tempfs,
  
  11409   Tue Jul 14 11:57:27 2015 jamieSummaryCDSCDS upgrade: left running in semi-stable configuration


  
  11408   Tue Jul 14 10:28:02 2015 ericqSummaryCDSCDS upgrade: left running in semi-stable configurationThere remains a pattern to some of the
restarts, the following times are all
reported as restart times. (There are others
  
  11407   Tue Jul 14 10:23:27 2015 IgnacioUpdateGeneralOptimal detector array placement thoughtsOver the past few days, I've been thinking
about how to workout the details conerning
Rana's request about a 'map'
  
  11406   Tue Jul 14 09:08:37 2015 JamieSummaryCDSCDS upgrade: left running in semi-stable configurationOvernight daqd restarted itself only about
twice an hour, which is an improvement:


controls@fb /opt/rtcds/caltech/c1/target/fb
  
  11405   Mon Jul 13 18:27:27 2015 EveConfigurationGeneralHow to set up your own summary page environment on the LDG clusterI'd like to build off of Koji's
instructions with a few useful tips I discovered
while setting up my own summary page
  
  11404   Mon Jul 13 18:12:50 2015 JamieSummaryCDSCDS upgrade: left running in semi-stable configurationI have been watching daqd all day and I
don't feel particularly closer to understanding
what the issues are.  However, things
  
  11403   Mon Jul 13 14:08:10 2015 ericqUpdateElectronicsNew RF amps, housedI made a little box for the new RF amplifiers
we'll be using for the green beatnotes,
to keep things tidy on the PSL table. They
 ampBox.jpgampTFs.pngampTFs.zipampBox2.jpg 
  11402   Mon Jul 13 01:11:14 2015 JamieSummaryCDSCDS upgrade: current assessmentdaqd is still behaving unstably. 
It's still unclear what the issue is.

The current failures look like
  
  11401   Fri Jul 10 17:57:38 2015 Max IsiUpdateGeneralSummary pages downThe summary pages are currently unstable
due to priority issues on the cluster*. The
plots had been empty ever since the CDS updated
  
  11400   Thu Jul 9 16:50:13 2015 JamieSummaryCDSCDS upgrade: if all else fails try throwing metal at the problemI roped Rolf into coming over and adding
his eyes to the problem.  After much
discussion we couldn't come up with any
  
  11399   Thu Jul 9 16:39:03 2015 KojiConfigurationGeneralHow to set up your own summary page environment on the LDG clusterHere is the summary of my investigation
how to set up my own "summary page"
environment on the LDG (LIGO Data Grid) cluster.
  
  11398   Thu Jul 9 13:26:47 2015 JamieSummaryCDSCDS upgrade: new mx 1.2.16 installedI rebuilt/installed mx 1.2.16 to use "ether-mode",
instead of the default MX-10G:


controls@fb
  
  11397   Wed Jul 8 21:02:02 2015 JamieSummaryCDSCDS upgrade: another step forward, so we're back to where we started (plus a bit?)Koji did a bit of googling to determine
that 'Wrong Network' status message
could be explained by the fb myrinet 
  
  11396   Wed Jul 8 20:37:02 2015 JamieSummaryCDSCDS upgrade: one step forward, two steps backAfter determining yesterday that all the
daqd issues were coming from the frame writing,
I started to dig into it more today. 
  
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