Weekly Report for Week Ending September 6, 2001

The LIGO Executive Committee Agenda for Monday  September 10, 2001 will be:

 (Meeting time: 10:30 am Pacific Time)

Open meeting 10:30 - 11:30

1. Announcements
2. LSC Issues (Weiss)
3. Comments on Weekly Report
4. WBS 1 LIGO I Construction (Lindquist)
• Field Change Orders/Contingency Liens/Change Requests
5. WBS 2 LIGO Lab Operations
• Administration (Lindquist)
• Sites (Raab, Coles, Shoemaker, Sanders)
• Detector (Whitcomb, Coyne)
• Campus Research Facilities (Weinstein (40 Meter), Libbrecht (TNI), Zucker(LASTI))
• Data Analysis and Computing (Lazzarini)
6. WBS 3 and 4  Advanced R&D and LIGO II (Sanders)

Special Items:  REVIEW OF FY2001 CARRY FORWARD TO FY2002 BUDGET

Special Announcements:

Weekly Report Highlights
 

LSC Issues (Weiss)

no report

LIGO I Construction/LIGO Laboratory Administration (Lindquist)

WBS 1.2 LIGO Operations--Administration

There was no site teleconference on Thursday, September 6, 2001.

The budget to be sent to the NSF so that they can release funds for FY 2002 has been approved internally and entered into FastLane.  We are waiting for the MIT proposal, which is to be attached.  Meanwhile, Florence has prepared a report for the FY 2001 Operations costs for the end of August.  The projected carry-forward is dwindling.  I propose an early review (Monday, September 10 Executive Committee Meeting).

The list of current actions revised to reflect the status of open actions assigned through August 30, 2001 may be found at ACTION LIST.

From: Ed Chargois <chargois_e@ligo.caltech.edu>

• Assisted the System Administrator (L.Bogue) with packing and shipping three (3) modems, serial numbers 21GWZ3D7KG6V(Robotics), A00156743475 (Hayes), A00165743131 (Hayes), and a Port Master serial number 1A19588 (Livingston) to MIT  (K. Beyer), Account Number P182498.
• Assisted the LLO (G. Traylor) with arranging the pick-up and delivery of two (2) crates containing a Down Tube and Leg Elements, combined weight approximately 7500 lbs, to MIT (K. Mason).
• Assisted Seismic Engineer (R. DeSalvo) with the preparation of US Customs Documentation and Commercial Invoice for shipping an  Accelerometer (Protype) to University of Pisa (Alessandro Bertolini).

>From: Linda Turner - turner@ligo.caltech.edu>

Web pages for the DCC give simple how-to's for document numbering, easy access to the latest on-line documents, and search capabilities for the DCC database. Take a look. . .

ACCOMPLISHMENTS

• No report this week.  Linda will be out for several weeks but will be checking in with Cleveland periodically as well as keeping up with email during this period.

ACTIVITY
 

Press here to access the DOCUMENT CONTROL CENTER WEB PAGE.

From: Esther Cunningham <esther@ligo.caltech.edu>

Press here for ACCOUNTS PAYABLE HISTORY DATA.

From: "Brambila, Ruth" <Ruth.Brambila@caltech.edu>

• Completed Change Order #4 to Goodrich, and Change Order #18 to Butler.
• Coastal Bridge and Moon Security are pending the possibility of new capital POETAs being set up for these new contracts.
• Working with A/R to complete the journal entries, which were started on Stewart and Stevenson to change the expenditure type.  The journal entry is being backed out of the purchase order; thereafter, a new line on the purchase order is created, and the receiving and payment is transferred to the new line.

• Worked on Operations Reports for August 2001.
• Explored feasibility of setting up Capital Accounts (No Indirect Charges) for recent improvements planned for sites Laser Safety, Curbing for Erosion Control, etc.

 

From: irena@ligo.caltech.edu (Irena Petrac)

• VME ADC RFP: RFP Addendum No. 3, providing additional technical clarification, was relased to potential proposers.
• Butler: CO No. 18, adding additional funds through Nov. 31, 01, was released to Purchasing.
• HPD: A CPFF proposal (ETC) for the fabrication phase of the SEI pre-prototype effort was requested.

• Installation of the laser safety interlock system is proceeding at Livingston, and is about to start at Hanford.
• Funds continue to be spent on repair of the Joy fans at Livingston, with the total now exceeding $100,000.

SUPPORT (Wood)

• Two-day Report (8/30-31): Processed the daily requisitions, invoices and receiving on-line. For more detail, see "Cost Schedule Control Systems" report by Esther Cunningham.
• Tracked and followed up on invoice problems.
• Monitored contract and blanket order encumbrance and notify task managers when supplements were needed.
• Jim continued with data entry in the LIGO database and supported Irene (travel) in the mornings and Linda and Cleveland (DCC) in the afternoons.

• Completed input to roster.  A different method for roster update is almost ready for roll out.
• Submitted to the DCC the signed LIGO Vehicle Usage Policy.  Thanks to Linda Turner for trying her best to electronically place two sets of original signatures onto one page.  In the end this did not work, so we implemented a work around.
• Placed Pcard orders, and reconciled several after chasing down invoices.  Continue to check status on a couple of long-lead items.  Spent some time obtaining price and availability of a hard-to-find Analog part.  Discovered that the Analog.com site could be more user friendly. (FYI, Analog Elec. caters to customers who spend over $100k, so we may be small potatoes to them.)
• Arranged a swap with the telephone office for a non-working pager for one that is working.

• Processed the paper work for four (4) new/revised trips (including Advance Checks written and hotel/car rental authorizations filled out and FAXed to appropriate vendors in various locations).  I have fourteen (14) trips in various stages of completion before ticketing can be done.  Worked on several trips that were extensively changed or modified and assisted several more travelers with questions regarding their existing or potential travel.
• Jim Covington returned four (4) expense reports this week and has seven (7) he is working on.  I completed seventeen (17) reports and there are nineteen (19) reports to be done.  I'm holding five (5) reports that need a check and one (1) that needs additional information from the traveler before submitting.  I spent a considerable amount of time contacting travelers who have very old outstanding trips still open.  I will continue to contact these and other travelers as time permits.
• Reconciled twelve (12) items on my P-Card which required telephone calls to vendors who do not enter the traveler's name on their charges.  Assisted a few travelers with their reconciling and/or data entry.
• Worked on the preparation and distribution of the Travel/Vacation Itinerary for August 29, 2001.  Performed normal recording and filing associated with Travel and Reimbursement.  Also performed miscellaneous duties as requested by various members of  the LIGO Project here at Caltech as well as from members of the staffs of each of the two (2) sites.  I continue to do MIT's travel to the sites for installation activities and also to assist them wherever possible.

• Extended the end date for everybody’s salary so that two million dollars of LIGO salaries don’t show up in the PMA suspense salary account on October 1.
• Entered revised budget information into NSF’s user-friendly FastLane (tm, all rights reserved).
• Dealt with HR matters and helped Benefits in discovering that they hadn’t done the paperwork on two of our newest employees.
• Discovered that Sponsored Research hadn’t submitted Albert’s proposal before the due date despite our frantic efforts last week to get everything ready for them to push the button in a timely manner.

Advanced LIGO (Frey)

Progress Period from 08.31 to 09.06

Accomplishments:

• Weekly Advanced LIGO Project Controls meeting not held this week.
• Advanced LIGO MRE Proposal (Highest Priority)
• Continuing the development of the Cost Estimate.
• Continue to pursue all other sub system schedules.
• Updated web site with latest data.
• The following is a summary of status by sub system:
• COC - Work on action items per second review continues.
• PSL - Work on action items per second review continues.  BOE data and schedule tasks processing is in progress.  Next meeting date has not been scheduled.
• AOS - Work on action items continues.
• IO -  Work on action items continues.
• SUS - Continuation of second review is scheduled for Friday September 7th at 9am.  Finished work on current comments and changes, BOE, and Schedule Tasks / Changes.   Issued reports to reviewers for Friday's meeting and finalized arrangements.
• SEI - Efforts continue on action items.  Next review date has yet to be scheduled.
• All other subsystems have yet to be scheduled for their first review.  These dates are pending per direction from Gary Sanders and Dennis Coyne.
• Continue to update the TNI Schedule and incorporate any changes.
• Updated the plan with progress as of 08.31.01 and  posted to site.
• Sent out update data requests for progress as of 09.14.01.
• Met with Eric Black and acquired his requested changes to current schedule due to issues related to the procurement of sapphire.
• Continue to update the LASTI Schedule and incorporate any changes.
• Updated the plan with progress as of 08.31.01 and  posted to site.
• Sent out update data requests for progress as of 09.14.01.
• Project Plan for the 40-Meter Lab Upgrade continues.
• Updated the plan with progress as of 08.31.01 and  posted to site.
• Sent out update data requests for progress as of 09.14.01.
• Continue to test the Cost Book Tool.
• Continue to work with BK executing current action items.
• Continue to run tests on reports using other sub-system data.
• Mapping and formatting of OPS cost data for input on hold pending additional changes to budget data per NSF re-submit.
• Development of the Advanced LIGO Project Controls Guidebook continues.
• Project Web Site for posting schedule and progress related data continues to be updated with the latest and greatest.
• See http://www.ligo.caltech.edu/~tfrey/index.html

• Next weekly Advanced LIGO Project Controls meeting scheduled for Friday, September 7th at 9:00am at Small SCR.  Focus of the meeting will be the SUS Continuation of Second MRE Cost and Schedule Review.
• Advanced LIGO MRE Proposal (Highest Priority Task)
• Highest priority is the development of the Cost Estimate.
• Will continue to pursue all other sub system schedules.
• PSL - Continue to input data per comments from Dennis Coyne and BOE data by Peter King, in preparation for next meeting TBD.
• AOS - Continue inputting changes to and prepare for next meeting TBD.
• IO - Continue inputting changes to and prepare for next meeting TBD.
• SUS - Next meeting scheduled for September 7th.
• SEI - Continue inputting changes and prepare for next meeting TBD.
• COC - Work in action items by Garilynn continues.  Anticipate schedule changes prior to next meeting TBD.
• Will import cost data and complete schedule integration.
• Will Continue to update the TNI Schedule and incorporate any changes.
• Will update the plan with progress as of 09.14.01 and  post to site by the 18th.
• Will Continue to update the LASTI Schedule and incorporate any changes.
• Will update the plan with progress as of 09.14.01 and  post to site by the 18th.
• Will continue updating the 40 meter schedule and incorporate any changes.
• Will update the plan with progress as of 09.14.01 and  post to site by the 18th.
• Cost Book Tool development continues.  (Highest Priority Task)
• Will continue ops cost data input when available.
• Will continue to work with BK importing data and executing action items.
• Will continue the development of the Advanced LIGO Project Web Site.

Will continue the development of the Advanced LIGO Project Controls Guide Book.

WBS 1.4.1.2   Project Controls (LIGO Construction)

The end-of-August Quarterly Progress Report will be due at the end of September, and I have requested contributions by September 21.  This could be the last Quarterly Progress Report required under this Cooperative Agreement, although we will still have to provide some kind of Annual or Final Report.  Under the new Cooperative Agreement, we think that only an Annual Report will be required.

The following Change Requests have been submitted.
 

We have scheduled a meeting of the LIGO Change Control Board for Tuesday, September 11, 2001, at 9:00 am PDT in the Science Conference Room (SCR). An agenda has been distributed electronically (LIGO-M010244-00-P).  Anyone requiring a telephone hookup should let us know.

Press for the latest Contingency Needs Projection.

From: Kris Duncan <kris@ligo.caltech.edu>

• Nothing significant to report.

• No report this week (vacation).
• Florence Kaufman and I have decided to put all the reports into one place (for your convenience)...so they can be found at:

http://docuserv.ligo.caltech.edu/~fireport

From: Ed Jasnow <jasnow@ligo.caltech.edu>

• The pre-bid conference and job walk for the Hanford OSB East Building is scheduled for Wednesday, September 12.  The conference will be conducted by Otto Matherny and Ed Jasnow.
• Construction of the Livingston Staging Building is continuing to run about six weeks behind schedule.  Measurements have been taken for the auditorium seats, so they will be installed when the auditorium is finished.

Quality/Safety (Tyler)

No report this week.
 

LIGO Hanford Observatory (LHO) Operations (Raab)

All electronics are down in the LVEA as we bake the room to 100F to
clear water from the chambers. We are working on a veriety of background
tasks that do not require the LVEA or could not be done because of their
impact on commissioning. Nothing really noteworthy in the mix.

LIGO Livingston Observatory (LLO) Operations (Coles)

Detector: Optics and Installation: Installation of the hardware for the
Laser Safety Interlock system began this morning. We will also install
additional cameras at each end station, as suggested in the LHO proposal.
Assembled a jig to calibrate and aligning wave front sensors off the ISC
tables, using the Modulated 980 nm RF Detector Test Laser. Peter King and I
began the calibration this afternoon. (Jonathan Kern)

LDAS: LDAS:  Updated all of the passwords at LLO.  Uploaded Big Brother to
ldas-sw and working the last of the bugs out of it.  I will have to
write a script to check the initial configuration and directory
structure the first time big brother is run at an individual site.
 Spent some time working on paper work from my trip a couple weeks ago.
 I noticed a couple of problems on controlmon last night, and will
contact Al about it this afternoon. (Shannon Roddy)

GC; Nothing to report

CDS: Nothing to report

PEM: Built four single pin to four pin LEMO cables and connected the coil monitor
outputs of the four face coils of each test mass to the Daq chassis. ITMY, ITMX,
and ETMY are using the designated coil channels while ETMX is using a temporary
channel setup.

Discovered the problem with the microphone power supplies waiting for spare
parts before beginning repairs.

Added more content to the PEM reference web pages (not posted yet). (Doug Lormand

Discovered that Sponsored Research hadn’t submitted Albert’s proposal before the due date despite our frantic efforts last week to get everything ready for them to push the button in a timely manner.

Detector/Technical Support (Whitcomb, Coyne)

See also the daily electronic logs for the installation and commissioning activities:
Hanford Detector Log
Livingston Detector Log

1.1 LHO INSTALLATION & COMMISSIONING

2km Commissioning

Luca Matone
I've begun writing a technical note on the LSC charaterization work done so far.  I've prepared a talk for the e2e meeting on the LSC charaterization effort.

1.2LLO INSTALLATION & COMMISSIONING

4 km Commissioning

While the Y arm cavity was in resonance, the Q of the bullet mode of the ETMY was remeasured and found to be about 7x10^5 rather than 7000 as had been previously reported. The suspicion is that the earlier measurements had not been on the bullet mode resonance.

Work is in progress to bring the mode cleaner wavefront sensors into operation.

The new PSL servo boards have been installed and the system is being tested.

The mode cleaner was leveled and the contribution to the frequency noise from the vertical oscillations of the mirrors was reduced by about a factor of 30. The excitation pattern was also simplified to involve only one vertical oscillation frequency.

2.0 OtherEngineering and Scientific Activities

2.1 Design/Analysis/Fab

Core Optics

Optical modeling

Amaldi
Core optics (Jordan)
40m Recycling
MELODY paper (Beausoleil)

Suspensions

IOO PERISCOPE

PSL

In a related problem, the GAP2000 InGaAs photodiodes ordered have a higher capacitance than the EG&G C30642G.  In the RF photodetector circuit these could not be tuned to 35.5 MHz with the available components.  As a result, some of the 21.5 MHz photodetectors have the GAP2000 photodiodes installed and the 35.5 MHz photodetectors have the C30642G installed.

The PZT holders for the pre-modecleaner have been re-made.  They are currently being baked in the small vacuum-chamber bake oven in the PSL Lab.

Rick Karwoski, Paul Russel, Don Clausen
LHO Spares

Currently short two RFPDs -- further detail provided by Sander

The following have been shipped:
1 FS Freq Ref
1 PMC Freq Ref
1 80 MHz VCO
1 FS servo

We have completed a PMC re-layout and submitted it for fab.  We are expecting new boards from the vendor early next week.

GEO/LASTI/CAmpus Spares

Work continues on the kitting/stuffing of the these spares. No major issues.

Fixed and tuned two each of the 21.5 MHZ and 35.5 MHz RFPD. Once the mistake in the housing has been corrected, they will be packaged and shipped to LHO and LLO respectively.

Working on a preliminary draft for the RFPD testing procedure.

LSC

• Mohana sent out a revised version of the MC servo board to LLO.  Unfortunately, there are some compatibility issues that exist due to the Hanford boards being set up for digital suspensions and the LLO bords not.  We will ensure that the correct information gets to Rana so he can sort things out.  Rich is going to LLO to work on this and other things during the week of 17 Sept.
• Went through the RFPD diode supply and found 7 more of the EG&G ones.  We are doing an inventory to figure out how many more we have on order.
• Working with Flavio, Jay, and Joe Giaime on the details of the digital controls for the seismic feed forward installation.  This will be done during my 17 Sept. trip to LLO.
• Working on changes to MC servo card that involve the discrete nature of the variable gain amplifier's gain steps.  Each time the gain is stepped, it causes the resonant gain stage at 1.45 Hz to wobble.  We are thinking about swapping the order of the stages.
• Worked on the drivers for the voice coil actuator used in seismic isolation.  Mainly at the planning stage for this.
• Worked with the vendor of the capacitance position sensors to get crate information to house the units in.
• Began to research the inductive sensors for use in the seismic feed forward at LLO.  These are cheaper than their capacitive counterparts.
• Began construction of common mode servo components for LLO

Digital Suspension

 Module            Needed           Fab Complete      Tested
 SUS PD Interface  29               34                15
 Anti-Image        12               16                7*
 Universal Dewhite 22               25                25
 LOS Coil Driver   14               13                6
 LOS Bias          14               17                12
 SOS Dewhite       11               16                16
 SOS Coil Driver   15               24                24
 Opt. Lever
 Intface           15               16                16
 

 We currently have enough modules to complete the LHO 2K. We should be fully complete by the 3rd week of Sept.

Suspension and ASC Spares

10 ea VMIC3113A
5 ea VMIC4116
10 ea. Xycom 220
10 ea Xycom 212
10 ea. MVME162
6 ea. VMIC5579-500
2 ea VMIC5579-501
6 ea Pentium

One satellite amplifier has been sent to each site as a spare. 5 more are in fab.  Two satellite amps have been tested and shipped to MIT.

ADC Development

LSC/Digital Suspensions

• Fixed bug with test points in coil driver code.
• Modified EPICS code to, hopefully, reduce CPU load on DSC supervisor.
• Will be at LHO next week to complete testing of code with GDS and LSC.

Microseismic Feedforward

40 Meter Interferometer (Weinstein)

• PSL (Abbott, Ugolini, Vass, Smith):
• The 40m PSL is operating continuously, with both servos in lock.
• We are contemplating a complete re-layout of the 40m PSL optical table, along the lines of what is at LHO. Plans to re-do the mode matching are on hold until this is resolved. Hope to go over this with King, Savage, Kovalik, etc.
• Karwoski and company are making spare electronics boards for the sites and for the 40m and LASTI.
• Facilities (Vass, Jones, Smith, AJW):
• Larry has ordered our last (5'x12'x24") optical table, and has CES working on custom supports.
• Larry expects to receive samples of braided in-vacuum cables for evaluating their flexibility, presence of shorts, etc. He's also working on the custom cable clamps, and has made detailed drawings and parts lists.
• When we have the prototype cables and clamps, we'll assemble our smallest seismic stack (for the MC curved mirror chamber) and take stack transfer functions, with and without the cable run.
• Larry updated drawings of the in-vacuum cable runs.
• Steve has enumerated all of our existing optical windows, and also what we need for the upgrade. We don't need any new windows, but will need to re-coat existing ones for IR anti-reflection (AR) or broadband (BB) AR. Need: two BK7 windows, IR coated (input and output beams). Two BK7 windows, BB coated (pickoffs / oplevs). One Pyrex window, BB coated (oplevs). Eight Pyrex window, BB coated (camera viewports).
• Optical Layout (Smith): Mike is still working on updating details in the optomechanical ACAD drawing.
• Suspensions (Romie): Janeen is drawing up the suspension design for our test mass optics (5" dia, 2" thick). She will use long OSEMs on these, and make PAM screws available, although we'll wait to see whether we need them (dynamic range).
• PEM (Ugolini, Abbott): The weather station, now up on the roof, is at last being read correctly into EPICS and DAQs.
• DAQ (Rolf, Abbott, Ugolini): A third disk failed in our RAID array, and was promptly replaced. Rolf has installed a reflective memory card into our Frame Broadcaster Ultra-10 (br40m), and Lisa Bogue has installed 100BT NICs into br40m and dmt140m, a Blade-100. Next, Rolf will install the Frame Broadcaster software, and we'll see if DMT works!
• Suspension controllers (Abbott, Heefner): Ben continues to work on detailed ProTel drawings of the 10 digital suspension controllers for all of our suspended optics. Ben assembled an SOS from the parts built by Janeen.
• Vacuum (Vass): Steve has installed one last valve on the new output optic chamber (OOC) annulus, and Dennis is wiring it up. Steve will move the annulus line near the SV chamber so that it isn't so close to the new optical table there.
• Computing (Ugolini, Bogue): Lisa got a printer working in our martian sub-net. She rebuilt br40m to function as a frame broadcaster. She helped run several ethernet cables and hubs around the lab. She's working on installing a bigger disk in op140m to serve as /cvs/cds code repository.
• Core optics (Billingsley): Garilynn has completed drafts of the drawings for all the core optics substrates; see http://www.ligo.caltech.edu/~gari/40M/index.html. She is obtaining quotes for polishing the core optics. We wanted to spec the ROC such that the sag over the central 3 cm is within +-20 nm of specifications. WavePrecision cannot promise this, but Garilynn believes they can do much better than this is they have someone else (her) do the metrology. Gari and Janeen have agreed on a spec for the chamfer around the edge of the optic (making it as small as practical so that it doesn't interfere with the osems).
• Schedule (AJW, Ugolini, Jones): We are working towards the following short-term milestones:
• in-vacuum cables and last 2 remaining seismic stacks in place, along with all vacuum windows, feedthroughs, etc, by Jan/Feb.
• mode cleaner optics polished and coated by Jan/Feb.
• assemble and hang MC optics in Feb/March.
• Have at least 3, maybe all 10, digital suspension controllers (including a test-banch one) by Feb/March.
• sensing and control opto/electronics in the MC reflected and transmitted beams by Feb/March.
• begin commissioning our mode cleaner by springtime!
Dennis maintains a detailed spreadsheet to-do list.

Thermal Noise Interferometer (Libbrecht)

This week we have been working on bringing our second arm cavity into
operation.  Of the four OSEM controllers we have for our test masses, only
two have broadband inputs for actuating on the mirrors.  For our previous
work, both of these were used on the north cavity, leaving the south cavity
without actuation.  This week we restored the south cavity's output-mirror
controller, allowing us to actuate on it, and we verified that the north
cavity still locks with its input controller replaced.  We have also
verified that we can remove the pzt feedaround servo after lock
acquisition, leaving the north cavity locked using only mirror feedback and
freeing the pzt servo for use in the south cavity.

LASTI (Zucker)

no report

Data Analysis and Computing (Lazzarini)

Simulation and Modeling (Bhawal)

E2E Physics Meeting
-------------------
Luca Matone discussed his recent work on characterization and modeling of the
Length Sensing and Control (LSC) system. After that, a short discussion followed
on issues for a realistic modeling of the mirror motion: measuring ground
motion correlation and modeling the correlation or using the measured data
stream.

Mode mismatch
-------------
(Biplab & Hiro) We are trying to understand some crucial issues related to
the cavity resonance conditions especially when a mode-mismatched beam enters
a cavity and we are performing some consistency checks regarding handling of gouy phase in
cases of mirror reflections and base changes.

LSC Characterization
--------------------
(Luca) began writing a technical note on the LSC characterization work done so
far.

Alfi
----
(Bruce)
- Continuing implementation of Alfi box and primitive file parser for Alfi5.
- Added ALFINode tree for tracking container hierarchy of nodes.

(Melody)
- Continuing on implementation of graphics portion of alfi5. Worked on
  window and menu components this week.  Also investigated on possible
  graphics format to display the primitives.
 

LIGO Data Analysis System
 

Software Systems (Blackburn)
 

The LDAS version (0.0.20) for the Burst and Stochastic MDC was release
on Friday of last week. It was installed on the LDAS development, test,
MIT, LHO and LLO systems.
 

The Burst & Stochastic MDC is currently underway at MIT. New versions
of LAL and LALwrapper are being installed at a rate of about twice a
day in support of the rapid development of that code base. So far this
has work out very well with the management of these code bases handled
at CIT and then pushed to MIT and the sites. LDAS staff at MIT for this
MDC have assisted with LAL and LALwrapper code development and with the
writing of test scripts and documentation for the MDC.
 

A couple of issues have shown up with the LDAS code during the MDC. They
have mostly been associated with the metaDataAPI and the database. All of
these issues have been resolved and patches have been incorporated into
the running systems of LDAS. There was a small issue with the mpiAPI and
the eventMonitorAPI. These were also fixed.
 

A need for a "search" column in the sngl_burst table similar to the
"search" in the sngl_inspiral table was identified and changes to the
test databases on the LDAS development and MIT systems have been made
to support the MDC.
 

Work is underway to establish a single CPU version of LDAS capable of
running full wrapperAPI jobs is underway. This is a mode of running
LDAS that has been requested at both the LSC meeting in Hanford and
here at the MDC at MIT.
 

Hardware Systems (Anderson)
 

LDAS Administration
-------------------
Caltech
-------
(Dan Kozak)
 

Lots of HPSS handholding--constant tape repacking, bad tapes needing
recovery.
 

Most of the week QFS testing was on hold while we acquired extensions
to our eval licenses.  Once these arrived we were up and running
again.
 

Testing of the "big rig" QFS system continues, with the aggregate
performance of multiple writing processes being good in terms of
bandwidth, but highly unstable (i.e. individual processes vary
_greatly_ in performance).  I'm going to try larger writes (i.e. larger
than 8 second frame sized files) and test reader performance.  LSC's
response to my questions about performance was basically "it depends"
so I'll pursue getting a better answer from them.
 

LSC's response to my question about the "blackout" of access to the QFS
while one of the shared reader or writer was rebooted was that this was
to be expected, but the more detailed questions (i.e. will the blackout
be longer with more T3s and that kind of thing) were being referred to
others within the LSC organization.
 

(Al Wilson)
 

m71 still crashing. and is notsimply  a logout condition as was the case before I lowered the
screen resolution. This is a full kernel crash (i.e., it locks up the system). I have
rebuilt the kernel (2.4.6) and might try 2.4.9 to see if it helps. Starting to looking like hardware.
 

All ldas systems have the new passwords.
 

The ldas-test system was used to refine the systemimagers program. Found
some helpful hints that will make the process go a bit smoother. Will
update the html doc. Also will incorporate the info from Mendell (LHO) and Roddy (LLO).
 

(Stuart Anderson)
 

Re-wrote the LDAS rsync script for added functionality to support
internal LDAS Beowulf mirrors, mirroring directly between two sites
without referencing the main LDAS software server, and supporting
the new LDAS MIT system.
 

General release of rsync server on ldas-sw for mirroring the /ldcg
software to non-laboratory computers.
 
 
 

MIT
---
(Keith Bayer)
 

Setup cables and flat screen on ldas console completed
Move guinevere and both dead Ultra1's out of ldas lab completed
 

Wireless testing with other laptop completed
 

Added AIT-2 tape drive to LDAS E450.
Julien needs data from tapes onto ldas completed
 
 
 

Livingston
----------
(Shannon Roddy)
 

Updated all of the passwords at LLO.  Uploaded BigBrother to
ldas-sw and working the last of the bugs out of it.  I will have to
write a script to check the initial configuration and directory
structure the first time big brother is run at an individual site.
 Spent some time working on paper work from my trip a couple weeks ago.
 I noticed a couple of problems on controlmon last night, and will
contact Al about it this afternoon.
 
 
 
 
 

Hanford
-------
(Greg Mendell)
 

1) Continued work on the known pulsar search code DS0.  I am currently
incorporating calls to the LALDemod function into the code, to stitch
together short time baseline FFTs into coherent longer time baseline
FFTs.
 

2) Started testing backups of the file systems on the LDAS LHO network;
this had been put on the back burner since last June.
 

3) Set up a spare Sun Ultra 10 as sunbox1 on the LHO LDAS network.  This
box will be used for testing scripts for installing LDAS Sun boxes using
cfdef, and verifying backups are working using ufsdump and ufsrestore.
 

4) Worked with Dave Barker to get a fiber channel connection between fb3
(the new framebuilder) and the Sun T3 disk farm.
 

Data Analysis Activities
Vicere':
* I am estimating the effect of power line noise on the signal
  correlation Livingston and Hanford detectors, in an attempt
  to evaluate the effect of frequency fluctuations on the broadband
  noise floor. This is work in progress.
 

General Computing (Wallace)
 
 

MIT:
(Keith)
-Setup equipment and accounts for the MDC
-Reworked a number of computers both hardware and software.
-Setup items for E2E.
-Working on network performance issues.
-Setup wireless network.
-Installed new s/w pkgs. on various machines.
-Setup printer services and fixed a few printer problems.
-Regular user support and purchases.

Livingston:
(Tom)
-Still working on the second T1 line installation. LSU is having to
work through a number of logistical issues.
-Setting up a new server and working on the in-house built disk storage
unit with Shannon.
-The usual work of setting up accounts and regular maintenance.

Hanford:
(Christine)
- After a failed attempt to swap our file server to a new computer on
Monday, I hope to get the swap done Thursday, 9/6.  I am not copying
over old application software and in-fact the new file server will only
serve the home accounts and will not have any application software on
it.  This may cause a problem for some people who maybe used some of the
old application software or maybe were accustomed to logging in to
rainier to run applications.  I will send out a list of other computers
that are available at LHO.  If application software is missing, please
let know what is needed and I will install the latest version on our
application server.
- Trying to get as much Sys. Admin. stuff done this week as I can in
preparation for spending next week as a Control Room Operator and
working from 1 to 9 p.m.  I will not be available for Sys. Admin.
(except emergencies) during my operator support next week.

CIT:
(Mike)
-Running various tests with VRVS software we seem to have this program up
and running.  The fix for 'vic.exe' and 'runtime errors' is as follows I
ended up downloading a third party software called unload.exe which is up
on Sirius in the pcapps directory; to kill the VRVS mbone video process
look for AVICAP.DLL then used the unload button to kill this process, you
then have to reboot the computer.
-I'm finishing up with the step-by-step instructions for VRVS registered
user webpage to connect to a scheduled conference, on request by Albert,
which he implied that I make some modifications and additional information.
-The external tape drive is now working on Donna's PC there was a problem with
 USB port.
-I upgraded ANSYS licensing server and users everything seems to be working
fine.
-Loaded some General computing software on a new PC that was purchased for
the west bridge 3rd floor conference room, and added additional hardware
for video conferencing.

(Lisa)
- Finally got cdssol8 (ultra10) finished with its rebuild and back over to
wilson house.
- cdssol20 (blade1000) was throwing up kernel notices.  I ran MU5 on it and told
Rolf to let me know if it barfs again.
- Re-did the mount points in the 40meter again.  Added a 75G IDE hard drive to
op140m (blade100) for /cvs/cds.  That is now automounted out to all unix boxes
on the 40m martian network.
- Created a configuration CD for the 40meter martian PCs.  This was not a big
deal, but it has jetadmin, sftp, ssh and a hosts file so that these things are
handy whenever they put up a new pc.  Mick and I are working on a configuration
CD for the unix boxes as well.
-Configured the gateway blade100 for the bdl.
- Regular round of accounts and aliases maintenance.

(Mick)
-Installed ssh on gemma (new Blade 100)
-With Lisa, took cdssol8 to Wilson, brought up and configured network
interface
-Worked with Mike on VRVS remote camera control
-JetAdmin on 40m PC
-With Lisa, installed new 70 Gb hard drive on op140m; also configured mount
points for new drive (/cvs/cds) on all 40m machines
-With Lisa, installed Fast Ethernet and reflexive memory card on 40m Ultra
10
-Made and ran Ethernet cable in the 40m
-Continued working on inventory information for database

(Larry)
-Spent some time working on the last maintenance update for the SUN
equipment. The Blade 1000 units take about 2 hours for the upgrade and
the Ultra 10's around 4 hours. It will be some time before we get this
latest update installed on all of the workstations.
-Received a number of purchases and started installing the new computers
and related equipment.
-The PC on the 3rd Floor of WestBridge has been getting more usage. Performed
some regular maintenance tasks. So far most people have not played with the
settings on the unit so we have not had any real major problems with it.
-Spent a deal of time working with Mike on the VRVS installation. Most of
the s/w issues have been worked out. A number of the problems were the result
of things changing(hardware being moved, cables being removed) after things
were up and working. The two test units that have been stationary and not
have had any changes have been running with very few problems.
-Checking on the costs to have single mode fiber runs done for the 40M and
Wilson house in-order to get a GIGE backbone going for the LIGO-CIT net.
-Met with Foundry systems to see what they want to charge us for their equipment
for the GIGE backbone.
-Solved a couple of printer issues. One problem with the color printers is that there
are formats that they can't handle and it asks to recycle the power to clear out
the problem. Just turning off the printer doesn't clear out the prolbem, it needs
to be unplugged from the power source and then the error will clear out of
memory.
-Working on some e-mail configuration issues.

(Barbara)
- Continued efforts on the new LIGO roster.  Made changes for printability
and other formatting changes.
- Continued efforts on Access form to add a costbook line item.  Resolved
problem with missing object types.
- Reviewed the Kamionkowski video.
- Fixed small problems with LSC roster and DCC number reservation tool.
 

From: Albert Lazzarini <lazz@ligo.caltech.edu>

Report from the GriPhyN LIGO Applications Group (CIT, ISI, UWM):

I.  Talks and Publications

UWM Reports:

"LIGO Data Analysis on the Grid: The Grid Physics Network (GriPhyN)",
at the LSC meeting in Hanford, WA, August 13-16, 2001. This was an
overview of the LIGO-GriPhyN efforts and in particular the prototype
being developed for SC2001, and was presented during one of the ASIS
sessions.

"CondorG Academy", at NCSA in Champaign-Urbana, August 27, 2001. This
was a full-day workshop I presented along with 2 people from the
UW-Madison Condor group. Although the presentations were not GriPhyN
centric, because CondorG is part of the VDT and because GriPhyN
scientists are expected to be DTF users I mention it. During the
presentations a number of references were made to the GriPhyN project.

II.  Tool Development and Software Changes

UWM Reports:

I have made two trips to UW-Madison to work with the Condor team and
have provided input on Condor DAGman.

II.  Testbed Activities

ISI Reports:

XML/Request Manager interface:
We are able to take the XML request sent by Roy to our web server either
via a web page or through the command line interface and can write the
XML  in a file at the web server end, parse the xml using a perl parser
XML:PARSER built around the Expat C parser. The parser currently returns
the o/p in name value pairs and stores them in an o/p file. This will be
changed to be given as a command instead, to the Request manager.

Currently instead the o/p is shown back as name value pairs of the given
XML back to either the web browser or the command client stdout.

Authentication : Installation of My-proxy is currently in progress

Replica Catalog :
Up and running on ldap://dc-user.isi.edu:9129. Need to populate the
replica catalog with files and the organization of the replica has to be
decided.

Condor-G :
 Installed and tested Condor-G with dummy jobs with a Gram gatekeeper on
Jupiter.isi.edu.  Test was done by doing condor_submit  of a single
script file and also by constructing a diamond dag and creating 4 scripts
and using condor_submit_dag to submit the dag to the dagman and execute
it on Jupiter. (Tests were successful.)

An apache web-server is working on dc-user.isi.edu.

Have tried doing the same with dataserver.phys.uwm.edu but have not been
able to make it work as of yesterday. (Need to spend some time on it with
Scott on Monday.)

Caltech Reports:

The ISI, Milwaukee, and Caltech groups have been collaborating extensively
to devise and implement an end-to-end Virtual Data system for LIGO data,
whihc we hope to demonstrate at the SC01 convention in Denver in November.

For LIGO, the use of Globus provides both security and wide-area data
distribution. Each invocation of LDAS (LIGO Data Analysis System) will
communicate to the world only through two interfaces:
    -- a Globus job manager (aka GRAM server), and
    -- a Globus data port (aka GridFTP server)

There is a Request Manager module under construction at ISI that receives
Virtual Data requests, and decides which LDAS installation should run to
complete the request, which data should be used as input, and where the
output should go. Input data is moved to the local disk of a LDAS instance
via the data port, the LDAS job is constructed and sent via the Globus
gatekeeper, and the output moved from local disk to where it should be on
the Grid. The request manager uses the Condor system to schedule and execute
these actions.

The request received by the request manager may be on that has been recently
answered, in which case it may be stored in the cache (aka replica catalog)
of the manager. In this case, no LDAS is used, but the replica data is
fetched to answer the request.

There is an XML-formatted virtual data request document, using the LIGO-LW
(LIGO lightweight data) specification. This specification has been agreed by
the collaboration, and tools have been built to both create such requests
from a client-side form on a web browser, and also to parse and implement
such requests on the request manager.

UWM Reports:

As part of the GriPhyN-LIGO prototype work being done in preparation
for SC2001 I have begun building and installing a GridFTP (gsi-wuftpd)
server on ldas-test.ligo.caltech.edu. In addition I have installed a
version of LDAS locally in Milwaukee so that I can begin working on a
GRAM jobmanager for LDAS.

Locally in Milwaukee I have setup the machine dataserver.phys.uwm.edu
with a Globus gatekeeper, GridFTP server, and GSI-enabled SSH server.
In addition I have installed, configured, and tested Condor version
6.3.0 on the UWM Linux cluster, as well as the UWM Alpha cluster.

I have also put together a package named LDR (Ligo Data Replicator),
which is being used locally at UWM to replicate data from the CACR
HPSS to UWM.

IV.  Demos

No activity to report.

V.  Outreach Activities

No activity to report.

VI.  Miscellaneous

Caltech Reports:

Marv Golberg convened a meeting at NSF on 29 August 2001. The subject of the meeting was the ITR 2002 Announcement and future scientific computing initiatives within the MPS Division.  The LIGO Program manager at NSF (Vic Cook) asked LIGO to participate and LIGO Laboratory and the LSC asked Lazzarini and Koranda to attend. In addition Prof. E. Katsavounidis, from the MIT LIGO group, was asked to attend by LIGO Laboratory management. Minutes of the meeting should be forthcoming from Marv Goldberg. Marv's title for the meeting was:
 
"WHERE DO WE GO FROM HERE? SCIENCE; COMPUTATION; EDUCATION; INDUSTRY"
 
In attendance were:
 
Lawrence Gibbons         Ikg@mail.lns.cornell.edu
Chris Jones             cdj@mail.lns.cornell.edu
Jae Vu                  vu@fnal.gov
Miron Livny             miron@cs.wisc.edu
Geoffrey Fox            gcf@indiana.edu
Stefan Westerhoff               westerhoff@nevis1.nevis.columbia.edu
Irwin Gains             gaines@fnal.gov
Scott Koranda           skoranda@gravity.phys.uwm.edu
Albert Lazzarini           lazz@ligo.caltech.edu
Erik Katsavounidis         kats@ligo.caltech.edu
Sarah Eno               eno@physics.umd.edu
Steve Chapin            chapin@ecs.syr.edu
Lothar Bauerdick              bauerdick@fnal.gov
John Huth               HUTH@huhepl.harvard.edu
Saskia Mioduszewski     saskia@bnl.gov
Giulio Varsi            Giulio. Varsi@hq.nasa.gov
Vicky White             Vicky.White@science.doe.gov
Glen Crawford                Glen.Crawford@science.doe.gov
Brad Keister               bkeister@nsf,gov
Vic Cook                        vcook@nsf.gov
Richard Isaacson           isaacson@nsf.gov
Alex Firestone          afiresto@nsf.gov
Marv Goldberg           mgoldber@nsf.gov
 
Also invited but not attending:
 
Alex Szalay           szalay@pha.jhu.edu
Vern Pankonin         ypankoni@nsf.gov
Jack Lightbody          jwlightb@nsf.gov
 

LIGO II/Advanced R&D (Sanders)

From Peter King:
 

2.3 Advanced LIGO PSL
        The boards originally designated as being for GEO were re-directed
to being site spares.  It is expected that replacements will be available
(fabricated, debugged and tested) by October.
 

From Mark Barton:

This week I did various calculations for the Advanced LIGO suspension
requirements, learning about the Mathematica package Optica in the
process.

From: GariLynn Billingsley <Billingsley_G@ligo.caltech.edu>

Goodrich has started the compensation polish on the 25 cm sapphire substrate.  They are shipping the 15 cm substrate back to Caltech.  This piece was used to calibrate the material removal rate of m-axis sapphire.  The estimated time to completion is 2 months.

From: Helena Armandula <ahelena@ligo.caltech.edu>
Silicate Bonding:

Performed a few more tests confirming that baked sodium silicate bonds between sapphire and silica are very strong, even when there is marked evidence of stress.

Tested in tension some old bonds made with KOH solution.
As before, even after they aged for ~ 109 days, these bonds were very weak.

A surprising result (to me) from tests that involved sapphire substrates is that they are very sensitive to thermal shock.
Much more sensitive than fused silica.

From: Riccardo DeSalvo <desalvo@ligo.caltech.edu>

Riccardo back  from Pisa to Pasadena,  Francesco back from Pasadena to
Pisa, (thanks for running the group for me, I appreciated Ric), Florian
back from Hongo in Pasadena, Alessandro back from Hongo, in vacation in
Mexico, going back to Pisa.
 

Akiteru
the preparation for the mirror control is going well. We have
installed the suspension, on which Florian and Yukiyoshi have been
working,
into the other tower and preparing electronics for the measurement. The
measurements should be done by middle of September.
In the mean while, I am trying to test new control scheme for the
inverted
pendulum. Mounting an accelerometer on it for monitoring completely
changed
the IP eigen modes. Then redoing diagonalization process, which takes
quite
bit of time. But we should be able to test the feed forward technique by
the
second week of the next month.
 

Lia
LVDT stabilization problems, may not be in the linear zone of the
readout,
Measuring the “S” and then check circuits again. Getting help from
Charlotte.
 

Mathieu
Wedge ear strain calculations for the quartz mirror suspensions.
 

Charlotte
Studying effective bending point of folexures under load
 

Florian
Working on end of stage final report

For additional information about this report, contact sanders@ligo.caltech.edu