Caltech: Barish, Shawhan, Zweizig
     Dublin: Ottewill
     Florida: Klimenko
     LHO: Landry, Penn, Raab, Sigg, Whitcomb
     Michigan: Riles
     MIT: Katsavounidis
     Oregon: Ito, Leonor
     Penn. State: Sutton
     Syracuse: Saulson

E8 Preparation - KR

• A list of E8 participants is now posted. These include DMT monitor authors and shift takers who will also serve as testers of the DMT monitor code. As discussed previously, one of the main purposes of the E8 run is to shake down the DMT monitor programs. A large fraction of DMT authors will be present at Hanford for E8. Not all participants have finalized travel plans. Schedule updates should be sent to KR when available.

 
• Operator and scimon shifts will be run 24/7 from 8:00 a.m. PDT on Saturday June 8 to midnight Monday June 10. Filling the expert scimon slots is of most importance for E8, but scimon trainees are welcome to participate too. Not all scimon slots are filled. One or two Livingston operators will also attend and participate.

 
• Pre-run organizational meetings will be held Monday June 3 at 3:00 PDT (teleconference) and Friday June 7 at 11:00 PDT (on site participants). The Monday meeting is to assess where we stand on hardware and software after the planned freeze. It is important in testing DMT monitors that both the H1 and H2 interferometers be working, to allow proper configuration file tuning.

Status reports on DMT infrastructure:

• General - J. Zweizig

 
• DMT monitor output trends can now be seen with the dataviewer in the control room (Yay! Many thanks to Alex Ivanov and to John - KR). John plans to create a trend channel naming scheme that allows automatic sorting of DMT trends from raw DAQ trends. By default, monitors using the trendwriter class will automatically write to a directory visible to the network data server (NDS) used by the dataviewer. Only the NDS program running on the FB3 frame broadcaster currently supports the DMT trend serving.
• The sand & stone machines at LHO have been upgraded to Solaris 8, but fortress will still need to run Solaris 7 for a while. As a result, one cannot presently build DMT monitors on fortress.
• Because of an accidental file deletion, all user passwords on stone have been set to be the same as for sand.
• DMT version 2.0.2PRE has been tagged, where the suffix is meant to suggest some possibility for minor changes. John plans to release version 2.1 before the S1 science run.
• Creation of an alarm class is proceeding slowly, but should be done before E8, in time for monitor authors to exploit it. The interface to the class will be released to authors around May 15.

 
• Summary page - S. Marka (report by phone & e-mail)

 

 

Szabi is working on a global DMT summary page that allows display of key information from certain monitors and for a cycling display of pages from selected monitors, similar to what is commonly seen at accelerator laboratories on television monitors. The summary page is meant to be highly dense with information meaningful mainly to experts, but with clickable links to more detailed info. Click here to see a tentative outline of the page. Szabi welcomes suggestions.
 

• Miscellaneous - D. Sigg

 
• An http proxy has been created that allows any workstation in the control room to see all of the internet. This means that documentation of monitors, for example, can be placed anywhere, which should alleviate the past tendency of online DMT documentation to be out of date.

 
• Daniel has written what he calls a rough template of a GUI control for a DMT monitor to serve as a model for other authors to follow. The template includes multi-threading, histogramming and a start/stop button. Patrick Sutton, who has been working on a GUI control of his Rayleigh monitor, expressed interest in looking at the template. (Daniel circulated the code to the DMT discussion e-mail list shortly after the telecon.)

 
• The diagnostic menu on the control room workstations now supports the GUI launching of DMT monitors in the same way that the DTT or dataviewer is launched. The actual monitor processes run on sand. This new feature should be most useful for interactive DMT programs like Steve Penn's Xbic. Other monitor authors are urged to exploit the new feature.

Status reports on DMT monitors:
 

• Line noise (multi-taper method) & inter-channel correlation monitors - B. Allen, A. Ottewill (Adrian reporting)

Adrian will be attending E8 where he will focus on the CorrMon program (inter-channel correlations), although he may also find time to spend on his line monitoring program.
 
• Line noise (quasi-monochromatic method) monitor - E. Daw, S. Klimenko, A. Sazonov (Sergey reporting)

Sergey too plans to attend E8. Although he presently writes output trends, he does not use the TrendWriter class and so will modify his code in order to have his trends be visible to the data viewer. The tentative plan for E8 is to run three line monitor processes per interferometer.
 
• Band-limited / seismic noise monitors - E. Daw (no update)

 
• Bilinear cross-couplings & broad-band non-Gaussianity monitor - S. Penn

Steve is finishing up a week at Hanford, working with Daniel on a GUI interface. He should be able to continue most of that work back at Syracuse and will be returning to Hanford the week before E8.
 
• Lock transition and servo instability monitors - D. Chin, K. Riles (KR reporting)

Dave has incorporated some fixes from Daniel to make the operational state condition code compilable by the Solaris compiler. A new version of ServoMon was sent to Peter Saulson last week for trial / exercising. There have been no updates to LockLoss. When John's new alarm infrastructure (see above) becomes available, both LockLoss and ServoMon will take advantage of it.
 
• Rayleigh behavior monitor (non-Gaussianity vs frequency) - S. Finn, G. Gonzalez, P. Sutton (Patrick reporting)

The GUI-controlled version of the Rayleigh monitor has been installed at the sites and tested at LLO by Peter Saulson. There is a lingering problem with occasional lost data segments when the graphical display cannot keep up in real-time. At the moment, the display can update four 128 x 100 2-D histograms once per second. There is an option for less frequent updating, allowing finer resolution. One trick for getting faster updating is setting the display environmental variable to one's host to bypass the secure shell encryption delay. Patrick wondered if anyone at Hanford would volunteer to try out the program, as Peter has done at Livingston. Mike Landry offered to help.

Inspiral sensitivity monitor - S. Finn, K. Schlaufman, P. Sutton (Patrick reporting)

Patrick expected to finish the first release of the inpiral sensitivity monitor by the end of the day (and succeeded - KR). The monitor is launched from the command line where one specifies a channel and a calibration file of the right format. The monitor pipes estimated inspiral ranges to the dmt viewer, has a summary html page with statistics, and has a web help file. (KR mentioned having seen estimates posted by Duncan Brown for inspiral ranges that were around 10 kpc for E7, while Patrick was quoting around 3 kpc, for comparable statistical significance. The discrepancy turned out later to be due to KR's myopia. Duncan's plots are clearly labelled as ranges to optimally oriented inspirals; Patrick's numbers apply to an ensemble of randomly aligned inspirals.)
 

Power spectral transient monitor - S. Mohanty (no update)

• Transient identification & event catalog monitors - J. Sylvestre, R. Weiss (no update)

 
• Glitch monitor - M. Ito

Masahiro continues to add the improvements discussed at the last telecon. He expects them to be ready by E8.

• Magnetic field and seismic transient monitors - R. Frey, R. Rahkola (no update)

 

A.O.B

• Next  teleconference: Friday June 14 at 11:00 a.m. EDT (8:00 PDT). This telecon will be held a week later than normal, in order to review what was learned in E8.