The LIGO Executive Committee Agenda for Monday November 1, 2004 will be:
(Meeting time: 10:30 am Pacific Time)
Special Items:
no report
STATUS OF LSC MOUs
(Petrac)
(LSC Research Plans through Feb. 2005 and Prog. Reports through
Aug. 2004)
ACIGA
Caltech-CEGG
Florida
GEO
Goddard
IAP
Louisiana School of Math, Science, and Arts (LSMSA)
LSU
NAOJ-TAMA
Rochester
UTBRG
Orsay Group
VIRGO
EGO
SITE TELECONFERENCE (Jasnow)
A site teleconference was held on Thursday, October 07,
2004. The following issues were among those discussed:
PROPERTY MANAGEMENT (Chargois)
>From: Ed Chargois <chargois_e@ligo.caltech.edu>
DOCUMENT CONTROL CENTER (Turner, Mak)
>From: Linda Turner - turner@ligo.caltech.edu>
>From: Cleveland Mak <mak_c@ligo.caltech.edu>
COST SCHEDULE CONTROL SYSTEMS (Cunningham,
Brambila, Kaufman, Salone)
>From: Esther Cunningham <esther@ligo.caltech.edu>
>From: "Brambila, Ruth"
<Ruth.Brambila@caltech.edu>
>From: Gina Salone <gsalone@ligo.caltech.edu>
>From: Florence Kaufman <fkaufman@ligo.caltech.edu>
Financial reports can be found at: http://docuserv.ligo.caltech.edu/~fireport.
(For passwords contact Florence)
SUBCONTRACTS MANAGEMENT (Petrac, Jasnow)
>From: irena@ligo.caltech.edu (Irena Petrac)
>From: Ed Jasnow <jasnow@ligo.caltech.edu>
SUPPORT (Baldon, Kammerling, Lloyd)
>Irene Baldon
Processed the paper work for six (6) new/revised trips. There are eight
(8) trips to be completed and ticketed at this time.
Completed twenty (20) Expense Reports and there are fourteen (14) reports yet
to be done. I continue to contact travelers who have outstanding Expense
Reports (more than one (1) month old) to ask for their cooperation in sending
me their receipts so that these can be closed in a timely manner.
Presently there are sixteen (16) reports more than 30 days old. Travel
Audits new policy of accepting only original signatures seriously holds up the
process of closing reports.
>Sharon Kammerling
>Dorothy Lloyd
PROPOSALS and REPORTS (Lindquist)
Schedule of proposals, reports, and activities planned for the remainder of
the calendar year.
CHANGE CONTROL/CONTINGENCY MANAGEMENT
(Lindquist)
HUMAN RESOURCES (Akutagawa)
>From: Cindy Akutagawa <cindy@ligo.caltech.edu>
Quality/Safety (Tyler)
>From: Bill Tyler <tyler@ligo.caltech.edu>
Nothing significant to report.
.
Summary of Commissioning Activities at LIGO Hanford
Observatory (Landry)
DMT shakedown mini-run M5 ran at LHO Friday Oct 22nd noon PDT until midnight
Saturday PDT. With a great deal of attention and effort, the 2k was
brought online
for the run outset. The Hanford machines functioned suitably well if modestly:
H1 had a duty cycle of 59% and a mean range of 4.5Mpc, while H2's duty cycle
was 44%, with a mean (but variable) range of 700kpc when firing on all
cylinders. Attendence by DMT authors was sparser than previous
mini-runs. Salient additions to the suite of DMT monitors are new
astrophysical figures-of-merit; these all ran reasonably well but all require
additional work before being ready for prime-time (E11-Nov 16). Read
Keith Riles' M5 closeout here,
and elogs for the 36h prior to that for an M5 update.
Commisioning highlights from the past week are detailed below.
4K IFO
-----------
2K IFO
------------
DAQ
-------
Continued parallel emphasis on completing HEPI commissioning and improving
interferometer locking and noise.
On HEPI we found another servo valve went bad in the field after previously
working well for some time. We now perform a daily automated scan of all
actuators and sensors to show any discrepancies. A conference with the valve
manufacturer is still pending to further investigate the source of the
troubles.
Today the ETMY actuators were physically repositioned to center them in their
ranges, given the new best alignment found for the interferometer. We expect to
do a further motion of the HAM1 and HAM2 HEPI actuators to fine-tweak the mode
cleaner length to its nominal value next week.
System identification continues on the ITMy, BS and HAM chambers. We have had
stability problems with closing the ITMy control loops so far. Today we
finally got blended loops going on ITMy and it looks like we now understand
what the problem was.
On the interferometer we have now put the high-power "run"
photodiodes in place on the dark port and rigged the new fast shutter to
protect them on lock loss. The machine continues to lock robustly but the noise
was disappointing:
(see
http://www.ligo-la.caltech.edu/ilog/pub/ilog.cgi?
group=detector&date_to_view=10/25/2004&anchor_to_scroll_to=2004:10:25:
00:03:04-rana)
It turned out that the beamsplitter optical lever filters had been accidentally
left in a test condition, so we were seeing alignment fluctuations of the
beamsplitter. These filters are now corrected. We will look at the noise again
shortly.
Subsequent measurements showed we have some dynamic headroom in the main
sensing chain and should not be limited by dark (electronic) noise at this
power.
Rana and Gaby got a lot of work done on the WFS system and measured the sensing
matrices. Although the system works (as reported last week), it isn't very
diagonal.
Also Rai got the mode cleaner WFS working again and re-characterized the new
ISS; recent concerns about its effectiveness turned out to be a red herring.
L1 Intereferometer Commissioning (Frolov)
----------------------------------------------------------------------
I worked on interferometer locking and noise investigation:
- the BS optlev was found to correlate with ASQ. Filters with more
suppression above 30Hz are installed.
- power in the detection path was increased by a factor of 2.5. This improved
the ASQ noise above 300Hz by comparable factor.
- we still have some head room in the ASI servo and dark noise.
Livingston Outreach (MZ for Thacker)
---------------------------------------------------------------------
John attended a highly successful workshop for Science Center Educators at the
San Francisco Exploratorium this week. He is now en route to the Louisiana
Science Teachers Association conference in Lafayette, where he will display our
LIGO Outreach exhibit; then on to the LA GEARUP conference in Mississippi
where he will give a presentation on our program.
Next week on Wednesday we have our kickoff workshop with Eskew+Dumez+Ripple,
architects designing the new education center. Peter Richards from the
Exploratorium will also be joining us.
Safety & security (Riesen)
---------------------------------------------------------------------
LASER SAFETY
Completed updating and posting of the authorized laser operator signage.
Installed permanent mounting hardware for the contact closure switches on the
PSL acoustic enclosure doors.
Scheduled logic software fix for the functional inconsistency between laser
tables in the LVEA. Work will begin tomorrow evening.
Finishing scope-of-work instructions for laser safety system upgrades
concerning the transmission monitors and the photon calibration systems for
both end stations.
SITE SAFETY
I found 3 cases where power cords were run across walk ways creating trip
hazards. These cords were removed from foot traffic areas.
This concern was addressed at our last Tuesday's staff meeting.
Completed the machine shop authorized users signage Installed emergency eye
wash station in machine shop.
Posted additional informational safety signs throughout the site
Rerouted power cords and air hoses in the machine shop, eliminating potential
trip hazards. This was separate from the other power cord trip hazards
mentioned above.
Staged 25ft rolls of cable protectors (for covering cables that are trip
hazards) at the end stations, EE lab, SB clean lab, SB high bay, and machine
shop.
Completed a walk thru audit of the sites emergency lighting, electrical panel
safe clearance areas, first aid stations, distribution of safety eye ware
(laser and non-laser), and general safety protocol.
AdL and LIGO 1 Mechanical Engineering (Spjeld)
---------------------------------------------------------------------
- reviewed BSC LOS installation tooling with Gary Traylor and Joe Hanson
- clarified specification details to potential UHV oven manufacturers
- high res. photo rendering of LLO layout 3D-models for museum exhibition
- concept design of HEPI compatible lifting fixture for HAM chamber doors
- design review and project planning of new LOS installation tooling for
AdL
- BOM for supports and assembly procedure for the photon calibrator shelf
CDS Software (Parameswariah)
---------------------------------------------------------------------
Worked with DMT Monitors and Trends. DMT Monitors running at LLO. DMT Trends -
minute trend look back had problems. First, had to fix the directory structure.
Moved all frame files created by DMT monitors to sub directories with naming
convention L-M-(first 3 characters of gpstime). Started a cron job to create
the latest sub directory and to link the current directory to the latest
directory.
Found a few of the channel.cfg - channel configuration files have right channel
names which match what is in the frame files. For those monitors, look back
works, for others dmt minute trend look back does not work. Will be working
with John to fix the channel.cfg files.
Added ramp time and gain ramping indication to all medm screens for sub-systems
HEPI, LSC, ASC and SUS. Regenerated them from epigen and updated all medm
screens in the main epigen area.
Investigated susepics, iscepics crashes over the weekend. Restarted susepics
from its original directory on Monday. I do not still understand what made us
not see any files in the original directory in susepics over the weekend which
made us make a copy and start it from there.
Sticky Slider problem reported traced to not burt restoring the processor after
the powertrip due to storm.
Looked into HEPI RM position sensor trends.
Working with Igor to get their 3510 Storedge array's (used for /dmt - DMT
Trends) controllers changed. SUN rep is here today to help us do the change.
General Computing (Evans)
---------------------------------------------------------------------
Shannon is away this week. Tom reports: We have had disk failures in two server
raid arrays. One disk has been replace and the other is on order. Since these
are raid arrays, we have not experienced any downtime as a result.
Data analysis (Yakushin)
---------------------------------------------------------------------
LDAS admin:
1) Ordered fiber for the new tape drives.
2) u1d2@t3-11 failed.
3) Controller in t3-16 was replaced after t3-16 reset itself with memory errormessages
last week.
4) Controller replacement in both 3510s and samfs/SAN/Solaris upgrade both for
LDAS and CDS will most likely happen next Tuesday since Donnie has not got the
cotrollers yet and expects to get them only on Monday afternoon.
5) Received 3 new servers.
Data analysis:
1) Still tracing a minor bug in hrss reconstruction in waveburst.
2) Published LIGO-GEO MDC frames, produced by Patrick Sutton, on LLO cluster.
HPLF, L1 Commissioning, and AdL Modeling (Franzen)
---------------------------------------------------------------------
1) Evgeny Kamenetskiy, Andrey Shaykin and Viktor Zelenogorsky finished all
their planned depolarization measurements in two TGG crystals and three DKDP
crystals which were brought to the LLO HPLF for testing. The TGG crystals were
investigated at various angles and laser powers. The DKDP crystals, which
purpose is to provide thermal compensation, were investigated in optimized
directions. The plan now is to use a Hartman-Shack sensor in order to measure
thermally induced lensing in all of the crystals separetly and also assembled
into an AdLIGO Faraday isolator prototype.
2) David Reitze visited the HPLF and conducted a high power experiment on a
bare RTP crystal, which is a candidate material of AdLIGO EOMs. A 90 W 1064 nm
beam of width ~700 micrometers passed the crystal without blowing it up and
without experiencing any dramatic thermal lensing. More quantitative studies
will follow.
3) In addition to helping out with the above mentioned activities I have continued
my test of the Melody AdLIGO Mode Cleaner model.
CDS software (Khan)
---------------------------------------------------------------------
Upgrading the Beam Centering Servo. In the new implementation we can calculate
error point for any of the optics, as well as send the corrections to it.
see also the CDS weekly meeting minutes in the commissioning archives:
Rolf Bork reporting
- Mostly working on HEPI. This includes new watchdog
features, multiple STS-2 sensors in the corner station, and bandlimited RMS. I
am also working on getting data from the ICS110B modules via the front panel
data port (FPDP) instead of the VME bus. For the FPDP, I now have data coming
out from the ICS modules and am working on the driver for the FPDP reciever.
- Alex is working on the microseismic for LHO. He will be at
LHO starting next Monday. His work there will include updating all the systems
to use the new ramped gain feature of filter modules.
- At 40m lab, have problem getting more than 6 LSC test
points. Alex is working on this.
Jay Heefner reporting
Fiber Optic Timing Link (Sander)
===========================
- Sander has issued a new requirements document in response to
the design review committee recommendations.
- Sander is making more careful jitter noise measurements
response to the design review committee recommendations.
- Paul is working on the transmitter and receiver board
layouts.
- The was some discussion and suggestions as to how the
fiber fanout should be packaged in order to meet EMI requirements. To be
continued...
Anti-Image Filters (Todd, Jay)
===========================
- 10 more boards are in the fabrication queue.
40 Meter (Ben, Jay)
===========================
- Ben is working with Brian to complete installation of the
LSC.
- Double demod PDs are being installed.
- Installing a new monitor computer for the vacuum system.
LSC PD (Ben)
============================
- Prototype tests has started.
ISS (Todd, Flavio)
==============================
- Building 2 more ISS boards for the sites. 2 more will be
started after these are completed.
AdL SEI/SUS (Jay)
===========================
- Working on vacuum cabling issues.
- Talking to ADE about capacitive position sensor
calibration blocks.
TNI (Jay)
============================
- TNI auto-locking under epics control. Adding duty cycle
calculation and logging capability.
LASTI (Jay)
=============================
- HEPI and ADCU installation completed last week.
TCS (Mohana, Jay)
=============================
- Testing of servo under epics control was successful.
- Mohana is redesigning the interface board. The prototype
has been sent to LHO for testing.
Elect Shop (Todd)
=============================
- 4 Bull's eye detectors are being tuned. Peter has
requested a fifth. We will stuff another as time permits.
- ASC QPD whitening boards are almost ready for shipment.
Ken Mailand, Phil Willems
Phil Willems, approved the laser chiller performance at
Caltech tuesday, and the assembly was sent to LHO for setup. Phil traveled to
LHO to set up and test this mechanical first article and pre-prototype
electronics for the quiet chiller. Richard McCarthy and Cheryl are working on
interfacing the system for test.
Ken is now working on an assembly, and part list, and the purchase orders for 5
more pending approval from the site.
PeterKing
Four high power photodetectors are in the final stages of
assembly. Testing with a laser will take place next week. Given that
these ones are heat-sinked, I hope that the current limit should be a little
higher than the naturally aspirated version.
The first article production intensity stabilization servo
was shipped off to LHO complete with test data.
Mike Smith
Still working on T040204-00, Astigmatic Spot Size in the
Power-Recycling Cavity Caused by BS Curvature. I have completed the calculation
of the combined Michelson spot size. I am adding the actual installed radii of
curvatures for the ITMx, ITMy, RM, and BS; because of the degenerate nature of
the power recycling cavity, the actual values of the curvatures have
significant effects on the eigenmode spot sizes. There seem to be inconsistencies
between the published radii of curvature in Garilynns COC Index, and the radii
that Hiro derives based on the measured phase maps. We will discuss this with
Garilynn.
The following quantitative measurements and numerous other anecdotal reports in
the elog have established the fact that the AS port output beam has an
elliptical shape:
1.
2K IFO, Michelson locked,on the BS transmitted arm. Unknown heating of the ITM.
Spot size measured with beam scanner at ISCT10 after beam reducing periscope
exhibits approx 25% ellipticity.
2.
4K IFO, Michelson locked on both arms. 75 mW TCS central heating of ITMy; 330
mW TCS annular heating of ITMx. The recombined AS port output beam, as measured
by the phase camera, shows > 30% ellipticity, rotated approx 30 deg. The
output beam shape is affected significantly by heating of the ITMs.
3.
Measurement of the AS port spot size with a beam scanner indicates that,
without the Michelson being locked, the one-pass reflection from either ITM
exiting through the AS port exhibits ellipticity; furthermore, the elliptical
axis of the focussed output beam rotates significantly within the Rayleigh
range. This result is independent of any influence of the power recycling
cavity modes. The observed rotation of the elliptical axis can not be
caused by astigmatic optical elements.
4.
A small amount of non-circularly symmetric higher order modes in the output
beam will create an elliptical spot whose axis rotates with propagation
distance.
There appear to be at least two mechanisms responsible for the ellipticity of
the AS port beam: 1) when the Michelson is locked, and the input beam is mode-matched
to the recycling cavity as a result of optimal heating of the ITMs, the
recycling cavity astigmatic modes "pull" the input beam into an
elliptical shape; and 2) there is >10% non-symmetric modal content in the
input optics beam that causes the rotation of the elliptical axis. A definitive
experiment that should shed light on the problem is to repeat Kawabe's 10/21/04
spot size measurements at the reflected port. Such a measurement would
completely eliminate any possible effects caused by the output optics train.
Lee Cardenas, Liyuan Zhang
OTF Lab. (W. Bridge)
The chamber has two samples, white Ceramabond, and disks of TRA-BOND #2254
color light brown epoxy. Cavity is locked.
We continue taking measurements everyday. No Change
Absorption Test Measurement prototype in standby
Scatterometer system in progress
The Inner test mass 2ITM04 fused silica mirror is in the scatterometer
enclosure.
We finished testing the standard (reflectance factor 99%) for the scattered
beam
for every two degree of angle and have calibrated as our Ligo standard.
Waiting for a new end test mirror to scan its surface.
The Quantronix 60 watt laser No change
OTF Lab at Lauritsen ROOM 38 No Change
Cavity #3
Chamber is pumping with (6) disks of TRA-BOND #2151 color blue epoxy and
(4) disks of TRA-BOND #2902 color silver epoxy. The cavity is
locked.
it has been already 15 weeks of testing and we'll continue taking daily
measurements.
data is been treated and it will be released next week (Dr. Zhang' s data
result)
Cavity #2 in standby
Mounting all the components and preparing the new chamber is in progress.
no report
LASTI Weekly Report (Allen, LaLiberty, Mason, McInnes,Middleman,Ottaway,
Sarin)
LASTI Infrastructure and High Bay
Quotes are currently being sourced for a Dome Support platform that will store
the BSC dome off over the Yarm when it is removed from the BSC. That is
valuable real estate on the high bay floor will not be wasted.
The initial Quad prototype has been dismantled and is currently boxed and
awaiting shipping to its final destination.
PSL
Wiring changes to ensure confirmation with site wiring plans are ongoing.
LASTI Vacuum
The LASTI vacuum is closed up and currently being pumped out for the testing of
the triple controls prototype. The rate of pumpdown is somewhat slower, ie
after the same amount of pumpdown time last time the pressure was a factor of
two lower. The hydrocarbon peaks are somewhat higher. This will take a little
further investigation to clarify.
HEPI Support.
Rich's cross coupling studies are ongoing in attempt to understand why the full
isolation observed at the platform is not transferred to the optical table.
Resonant gain was used to explore the effects of increased gain in a couple of
loops. Stay tuned for the results.
IMULATION AND MODELING
(Bhawal)
<Weekly Physics Meeting>
Monica from LAL, Orsay discussed her plan to validate transfer functions
of the e2e time-domain model for the advLIGO configuration of the 40m
interferometer with results from Twiddle. Sany Yoshida from Southern Louisianna
University discussed some problems in implementing the control system of the
Mode-Cleaner and other issues in input optics simulation.
<Trip to Europe>
(Hiro) From October 9 to 24, I went to Cascina to attend a simulation meeting
organized by Virgo people and the IEEE conference in Rome. During this trip, I
visited LAL/Orsay, LMA/Lyon and LAPP/Annecy, and those visits were very useful
for e2e and FFT study I am working now.
<Site-related>
- Biplab worked on analysis of the phasecamera pictures (H1 dark port) after
decomposing such images in Hermite-Gaussian modal basis upto 4th order.
- Biplab and Hiro planned to analyze the measurement (Ref: H1 elog Oct 21,
Keita) of variation in waist-size of the dark port beam with distance and in
different transverse orientation which shows that the beam is not only
astigmatic but it's rotating too. This analysis will involve extracting
information of the modal content of the beam from the data of the variation of
beam-width.
As a preliminary investigation, it is shown that merely a mixture of 80%
TEM00 and 10% each of TEM11 and TEM30 can produce an elliptical beam that
rotates as it propagates. See
http://www.ligo.caltech.edu/~bbhawal/Keita0410/Rot.pdf
<Simulation of 40m interferometer>
(Hiro) Monica had hard time validating the 40m model using e2e by
comparing existing twiddle result. I calculated anew using the input file
provided by Alan, and gave the result to Monica who could complete the
validation with good agreement.
(Monica) The static configuration of the 40m/advLIGO package implemented in e2e
framework has been validated by comparison with Twiddle simulation. Twiddle
results have been run again last week by Hiro and the same parameters have been
used to run e2e. The agreement is quite good with a relative error within 0%
and 0.6 %.
<Limitation of the paraxial approximation in modal model>
(Hiro) Raised by A.Freise, I studied the limitation of the paraxial
approximation in modal model by studying the following case. TEM00 with waist
w0 at z=0 is expanded at z=-L using a different base with waist w0' at z=0, and
calculate the amplitude of TEM00 with the original base at z=L.
For details see http://www.ligo.caltech.edu/~hiro/diffBase.pdf
The TEM00 amplitude at z=L is not 1, showing a limitation of the modal
expansion with propagation.
<Code maintenance>
(Hiro) FUNC_X support: modeler was modified to support the dual interface of
FUNC_X, a full code display and a simple parameter list display (Also see
Melody's report on Alfi). This was a oversight to have been included in the
last release.
<Alfi>
(Melody) Continuing modifications to display the FUNC_X variables in a
friendlier user interface. Currently working on the simple view which parses
the C++ code in the MemberDecl primitive setting. Working on assigning
default values for inherited nodes and functional consistency.
(Bruce) Completed box settings dialogs, tests, and made a new Alfi release.
LIGO DATA ANALYSIS SYSTEMS
<SOFTWARE SYSTEMS> (Blackburn)
[LDAS]:
Currently working on verifying code that: a) Allows FrVerify to properly detect
bad files as listed in PR#2504.
b) Allows createRDS to create short final frames (PR#2726)
c) Allows generation of per frame checksums (PR#2721)
Updated documentation for createRDS to reflect recently added
"-framesperfile" and "-secperframe" options.
Working on making RDSVerify part of a 'make system-check' target as part of
automating the system testing.
Worked on getting sinstall updated rules for VIRGO's FrameL frame I/O library
under LDCG directory tree.
Worked with Patrick Sutton to track down a syntax error in a new LDAS datapipeline
script he is developing.
Worked with Scott Koranda and Kevin Flasch at UWM to understand problem with
lsync data discovery utility which is seen at UWM but not at CIT. Currently
investigating whether or not their unthreaded TCL is the source of their
issues. We use a threaded TCL here.
Continue to work on mpiAPI PR 2451, reuse of internal masters as compute nodes.
Testing and debugging new code base on ldas-tandem3.
Working on controlMonitorAPI client PR 2150, directory tree for mount points
visualization needed.
Committed changes for PR2485, windows did not grow to fill available spaces.
Fixed the missing log messeges issue in controlMonitorAPI server associated
with PR 2164.
Ran LDAS system and integration tests on version 1.2.46. Updated results on
webpage and committed results to CVS.
Made several minor enhancements to test scripts and committed these changes to
CVS.
[Tcl/Globus]:
Still debugging on Tcl script and SWIG wrapper for testing the following
asynchronous Globus XIO functions (4 functions):
a. globus_xio_register_open()
b. globus_xio_register_close()
c. globus_xio_register_read()
d. globus_xio_register_write()
Both globus_xio_register_read() and globus_xio_register_write() have some
problems with the buffer not being returned properly. These functions are for
building client/server Globus XIO model.
Working on Tcl script using the last 4 major asynchronous Globus XIO functions
to exercise client/server model:
a. globus_xio_register_readv()
b. globus_xio_register_writev()
c. globus_xio_server_register_accept()
d. globus_xio_server_register_close()
These are Globus XIO sample C programs and we will use the programs to
construct our Tcl script and SWIG wrapper.
[Grid]:
Preparation for the demonstration of inspiral data analysis using grid
technologies at the Super Computing Conference next month continues. At the
GriPhyN/LIGO teleconference this week finishing touches were being made on the
grid infrastructure for running the inspiral jobs at CIT, UWM and LSU.
Attended OSG Blueprint workshop at Fermilab last week. The workshop focused on
the blueprint document, but also covered scheduling and planning for the OSG0
deployment.
Attended several OSG management and activities group teleconferences during the
week. Topics covered planning for upcoming meetings and conferences, policy,
deployment and scheduling. Some effort went into updating the OSG Charter to
better reflect the broader science community usage goals.
<HARDWARE SYSTEMS> (Anderson)
[Caltech]:
(Dan Kozak)
* Helped Igor with T3 controller failure in /dmt at LLO.
* Worked on findingthe source of the new (since controller swap) 3510 errors at
CIT. Continuing to work with Sun on this.
* Figured out that the stuck tape at LHO (sent back to STK with the drive)
didn't have any data on it.
* Helped Ben set up SAM for M5 run.
* Installed latest LSC Data Grid software to try to learn something about LDR
before Hari leaves.
* Wrote up instructions for 3510 controller swap for LLO.
(Hari Pulapaka)
* Installing ganglia on the test cluster.
* Documenting stuff I have worked on.
* Pulled M5 data from LHO.
* Setup the grid software on ldas-grid for Griphyn Ligo demo.
(Al Wilson)
* Installing tripwire on all production systems (LHO,LLO,MIT) getting tar
files setup for Admins to do a plug and pray type install.
* Replaced disk drive on datacache3.
* Testing new grid servers. Units passed memtest. Will run the burn in test
over the weekend.
(Stuart Anderson)
* Received and installed new CISCO Beowulf switch.
* Received and installed 3 new GRID servers.
* Worked on material for NSF review.
* Worked with Duncan to improve cluster NFS performance.
[MIT]:
(Keith Bayer)
* Received 200GB harddrives.
* Received 3 1U rack mount Intel boxes.
* Upgraded condor.
* Locked all accounts not accessed within 1 year from DMT machines.
[Livingston]:
(Igor Yakushin)
* Ordered fiber for the new tape drives.
* u1d2@t3-11 failed.
* Controller in t3-16 was replaced after t3-16 reset itself with memory error
messages last week.
* Controller replacement in both 3510s and samfs/SAN/Solaris upgrade both for
LDAS and CDS will most likely happen next Tuesday since Donnie has not got the
cotrollers yet and expects to get them only on Monday afternoon.
* Received 3 new servers.
[Hanford]:
(Greg Mendell)
* LDAS successfully archived and reduced the data during the Oct 22-23 M5
mini-run at LHO. This data is available from fortress. Raw frames
are under: /samraw/M5/ and reduced data sets using the S3 level 1 and S3 level
3 channel lists are here: /samrds/M5/. The DMT trend data is here
/samrds/dmt/ and minute and second trend data is here: /samrds/trend/
(Ben Johnson)
* Continuing to work with StorageTek toget the tape library in shape. The L700
firmware has been updated, but they are still working on the two new drives, as
well as the bad replacement from last week.
* The controller on t3-4 (/samraw)went offline. This resulted in corrupt
postS3/ frame files, but fortunately these files were duplicated in the M5/
directory. The corrupt files were deleted.
* Added async and wdelay options for the grid users' home directories
tekoa/datagateway2, and remounted all NFS clients that access that filesystem.
* Working on LSCfileAdd utility (and related classes) to allow online/offline
analyses to publish results to an LDR-like database.
* Received 145 Maxtor IDE drives for the cluster.
DATA ANALYSIS ACTIVITIES (Lazzarini)
Duncan Brown:
Writing S2 MACHO search paper for LSC meeting: Working on comparison of our upper
limit with predictions of Ioka et. al. Fixed a problem with the inspiral
coincidence code and re-ran the coincidence part of the MACHO pipeline. Ran
more injections and time slides for extra efficiency and background statistics.
Worked with Eirini on tracking down a sign error in the BBH search code. Ran
some test inspiral jobs via Globus on the LSU cluster and provided support for
running S3 MACHO search at the SC 2004 demo under Pegasus. Worked with Stuart
on fixing a problem with the /dso-test file system.
Greg Mendell:
I have added to the lscsoft/glue cvs repository a command line tool for finding
science-mode segments of data given as GPS intervals: LSCsegFind. This tool
currently works with web pages produced by Peter Shawhan and John Zweizig and is
intended for use with online analysis scripts, though it can also be used for
offline analysis. See the DASWG "howto" page, http://www.lsc-group.phys.uwm.edu/daswg/docs/howto.html,
for info on how to get software from LSCsoft. A pointer to basic
documentation for LSCsegFind is on the DASWG online project page:
http://www.lsc-group.phys.uwm.edu/daswg/projects/online.html.
Patrick Sutton:
I spent Friday-Sunday at LHO participating in the M5 run, mainly tending
SenseMonitor and the new DMT EasyCalibrate tool. Both performed well.
Since then I have been producing MDC (simulated signal) frames for the LIGO-GEO
and LIGO-AURIGA joint bursts searches. That's been technically troublesome, but
I've managed to make the necessary frames with help from Ehrens and Yakushin.
Peter Shawhan:
I have been looking into the data quality flags that have been defined for the
S3 run to see which ones should be used for burst analyses. I have also been
looking at analysis cuts for the S3 all- sky burst search.
Igor Yakushin:
Still tracing a minor bug in hrss reconstruction in waveburst. Published
LIGO-GEO MDC frames, produced by Patrick Sutton, on LLO cluster.
GENERAL COMPUTING (Wallace)
[MIT]:
(Keith)
-With Larry Wallace's help:
-Replaced failed hdd on desktop pc
-Spec'd and ordered desktop for new grad student
-Ordered projector for lab
-Prep work for LSC
-Worked with Ken on burning DVD's
-Building / experimenting with new NAT router PC
-Ordered various supplies
[Livingston]:
(Shannon)
-Finished cleaning up after the password compromise last week. Locked
several other unused accounts, waiting to determine the status of the other
suspected unused accounts.
-Assembled an AMD 64 workstation for one of our users. Installed
SuSE 9.1 64 bit on the workstation.
-Investigated a suspected hack on one of the DMT machines. I can not find
any evidence of a hack, however there are some really suspicious
symptoms. Several log files were zeroed out. The Logwatch process
that emails me daily did not function Monday morning. So far, I cannot
find any reason for any of these symptoms, so for now, I am not considering it
a hack.
-Tuesday through Friday this week - on vacation
(Tom Evans)
-We have had disk failures in two server raid arrays. One disk has been replace
and the other is on order. Since these are raid arrays, we have not experienced
any downtime as a result.
[Hanford]:
(Christine)
- Network usage can be seen at
http://www.ligo-wa.caltech.edu/~christin/mrtg/198.129.208.1_198.129.78.122.html
- Last week I attended a two day course on LAN and Internet Security. It was
mostly a presentation of the security features available in Windows 2003
Server. It was interesting, but their recommended security procedures are
much more restrictive than what we have. The course had some good
information and I'm looking forward to moving to Windows 2003.
- Modified the web server files for a user to include xhtml.
- Ran a password cracker on the unix passwords. Contacted the users whose
passwords were guessed. All of the guessed passwords are for accounts
that the users no longer use. I have removed the accounts from the
system.
- Ran security audit scanson the Sun servers. I'm now hardening the
security on the servers as recommended by the audit reports.
- I'm updating the patches on all of the Sun computers.
- Installing the latest Caltech VPN client on all the Windows computers.
I'm having problems getting it to work on one computer, but it works fine on
others.
- Started documenting the upgrades and improvements to be made in FY 05.
- Other misc. user support.
[CIT]:
(Veronica)
- LSC website: Updates to the November meeting website.
- LIGO website: Redesign of the PAC meeting website and updates to the webpages
currently posted.Updates to the NSF Review website.
- Project Science: Posted talks for the 4th workshop and updated the
webpages.
(Bruce Sears)
-Ilog Development:
- Implementing a faster search
(using indexing) for
large logs such as the
LHO Detector log.
(Lisa)
- Held down the fort while Larry and Mike were out of town.
- Did a maintenance update on the mailserver software. The next set of
updates will be a major software upgrade. I expect that to happen in
about a month.
- Continued working with Sharon on web pages.
- Began messing around with gentoo.
- Rewrote the backup scripts for the 40meter.
Mail Stats 10/21 - 10/27/04
Messages Accepted:
Spam Rejected:
Viruses Rejected:
False Positives:
Total Mail Thru:
(Larry)
-Worked with Keith on updating his servers. We had enough spare time to run a
short audit on the network and the servers. All of the major issues, which were
few, discovered from the audit have been resolved and the minor ones are being
worked on. We were able to update some of the computer documentation on the
network. Spent a little time looking at a demo version of a document control
program that David Shoemaker was investigating. From a quick look there were
enough positive features to warrant more investigation into the program.
-Spent time working on different documents in preparation for Albert's NSF
presentation.
-Continue working a number of procurement issues. The SUN contract needs to be
reworked and the company supplying the new tape robot are still having problems
getting things delivered.
From: "Thomas Frey"
<tfrey@ligo.caltech.edu>
Progress Period from 10.22 to
10.28
·
·
See http://www.ligo.caltech.edu/~tfrey/index.html for a
complete listing of all project related cost and schedule data.
Accomplishments:
·
·
Sub-system
PLANNING activities
§
§
Continued work on preparing web space for posting Adv. LIGO reports.
("The Whole Enchilada")
§
§
Continued the input of changes / preparing RFIs / responding to RFIs, as
a result of the meetings with Carol and the Subsystem Teams. (Some AOS
comment's, SEI, LDAS, and 40-Meter remain to be completed)
§
§
Started work on updating database coding to account for scope being added
to the request amount.
·
·
ROSTER DATABASE:
§
§
Continued to work with Irena to provide Barry with information regarding
FTEs and Institutions.
§
§
Assisting Irena as needed on record changes.
·
·
COST BOOK DATABASE:
§
§
Posted revised cost data as a result of the meetings with Carol and the
Subsystem Teams. (SEI, LDAS, and 40-Meter remain to be completed)
From: Larry Jones <ljones@ligo.caltech.edu>
Advanced LIGO Seismic Structure
SEI Structure:
ASI presented their latest estimate for cost to completion of this task,
with a significant increase in cost and a two month slippage in schedule. We
are discussing details of this increase and evaluating our options, with a goal
to presenting those options to LIGO management on Nov 1.
Actuators:
PSI has completed winding the bobbins for the 12 actuators for the BSC unit
prototype. High-pot testing prior to terminating the coil wires was
satisfactory, but failed on all units after terminating. This is being
investigated.
Displacement Sensors:
ADE is proceeding with fabricating and testing the 14 displacement sensors
for the BSC prototype structure. They have provided a quote for two calibration
blocks.
Accu-Glass is proceeding with fabricating and testing the 3 feedthrough flanges
for the BSC chamber at LASTI, with 16 feedthrough fittings each.
Seismometers:
Nothing new.
Galling/Dusting Test:
Nothing new.
From: Janeen Romie <romie_j@ligo.caltech.edu>
From: ctorrie <ctorrie@ligo.caltech.edu>
Weekly Report
Advanced LIGO SUS
2 weeks: From 8th October to 26th Oct 2004
1. QUAD Update
CES and the Physics shop are progressing well with the parts associated
with the suspended masses.
Blade wire clamps tests are being performed at RAL and at caltech to look at
the feasibility of using the "GEO" style clamp on the top stage where
the wire is 1mm in diameter
Mike and I are working on an overall layout for the quad ETM that will more
easily allow us to maintain an overall assembly with a defined co-ordinate
system.
2. Visits
Tim Hayler has been visiting us from RAL over the last 3 weeks or so. Tim
will continue to support the effort on the controls prototype over the next few
months.
Norna Robertson also visited us last week. Mike Perreur-Lloyd is visiting us
for 5 weeks.
3. FEA of Structure
Tim, Janeen and I worked on the FEA of several concepts for the top stage
of the structure. It look like we now have a design that will allow us to move
forward with its interface with other sub-assemblies and considering how it
will be manufactured.
Following Tim's successful visit to Caltech we are in the process of tidying up
a concept for the overall structure. I will describe this in more detail next
week.
4. Blades and Coils
The test blades have arrived from VP. As expected they are not to the
print. VP could not handle our 100 hour bake requirement so we allowed them to
replace this with our previous 4 hour bake. Ian Wilmut will test these when he
arrives from RAL next week.
CES (who are making the blades for the controls prototype) are progressing very
well. All of the shapes have been cut out and they will be rolled within the
next few days.
The coils have been wound and are now with Bob Taylor.
5. Design Meeting
For a review of this week's design meeting please refer to the following
link: -
http://www.ligo.caltech.edu/~ctorrie/QUAD_ETM/quad_etm_setup_page2.html
From: Helena Armandula <ahelena@ligo.caltech.edu>
Adv. LIGO SUS
Following on the effort to minimize vacuum out-gassing I am researching the
possibility of joining the large nickel plated magnets to the spacers and flags
by cold indium welding.
These magnet assemblies are used with hybrid OSEMS.
I am also looking for an alternative to Vacseal to bond magnets to
penultimate masses, however, for now, it is the default option. I prepared some
Vacseal samples to be tested under vacuum to see if conforms to the more
stringent Advanced LIGO requirements for out-gassing.
I am looking for a very low out-gassing, fast curing bond that will not
take a piece of glass out of the substrate if it gets knocked-off.
Advanced LIGO Coating Development
Collecting information for the up-coming NSF review.
For additional information about this report, contact whitcomb_s@ligo.caltech.edu