The LIGO Executive Committee Agenda for Monday January 31, 2005 will be:
(Meeting time: 10:30 am Pacific Time)
Special Items:
Minutes of LSC Executive Committee telecon
21 Jan 2005, 1130 Eastern 0830 Pacific
Attendance: Bruce Allen, Patrick Brady, Sam Finn, Joe Giaime, Albert Lazzarini, Dave Reitze, Keith Riles, Peter Saulson
(minutes), Bernard Schutz, David Shoemaker, Ken
Strain, Rai Weiss, Stan Whitcomb, Benno
Willke, Alan Wiseman
Brief items:
* Einstein@Home is making
excellent progress toward public release. Soon, it will be opened to the
backlog of users (about 16,000) who have signed up at the APS web site. Bruce
Allen expects that the system is in shape to handle of order 100,000 users.
(About 4,000 have been participating in the present testing phase, which
functions as the equivalent of a 1,000 node cluster.) Checks of scientific
results have been successful.
* There has been progress on a new draft of the LSC Charter.
David Shoemaker, Norna Robertson, and Sam Finn have
written a draft that will soon be ready for wider readership. The plan is to
discuss the new draft at the February 18 LSC Exec Comm
telecon, and if the reaction is favorable then to
discuss the proposed new Charter at the March LSC meeting.
* Sam Finn asked about the status of the election for
Spokesperson, due by the March LSC meeting. Stan Whitcomb reported that a
nominating committee had been assembled, but was waiting for the Spokesperson
to appoint a chair before starting work. (After the meeting, Norna Robertson agreed to serve as chair. The other
committee members are Stan, Fred Raab, and Gabriela
Gonzalez.)
* The first meeting of the LSC's
MOU Review Panel will take place at MIT on 4-5 March, chaired by Alan Wiseman
and Albert Lazzarini. It will review the 15 Feb
updates of MOUs, with the intention of having all
"signable" MOUs
signed before the March LSC meeting. The Panel will also take a first look at
the health of the overall research program, with a view toward being able to
write an Annual Report and Work Plan for integration into LIGO's
reporting to NSF.
LSC thesis prize:
Stan reported that Fermilab offers an annual prize to the graduate student who
writes the best thesis related to a Fermilab
experiment, and proposed that the LSC do something similar. There was
substantial enthusiasm for this idea. It would be a way both to recognize
individual talented students and to raise the visibility of grad student work
in the collaboration. Depending on throughput, it might make sense to offer the
prize only every other year. Sam asked us to be clear that thesis work on all
LIGO-related topics would be eligible.
Rai Weiss, Stan
Whitcomb, and Albert Lazzarini offered to work out
the details, and to bring forward a specific proposal that could be adopted by
the LSC.
Global collaborative data analysis:
Peter Saulson
reported on the start of a GWIC-mandated initiative to clarify the present
regime of bilateral collaborative analysis agreements and to explore the
possibility of a multi-lateral global collaboration on gravity wave data
analysis. The GWIC committee looking into this consists of Masa-Katsu
Fujimoto, Benoit Mours, Giovanni Prodi,
and Bernard Schutz, with Saulson
as chair.
Five possible actions are on the table as
possible ways forward. They are:
1. Publish all current bilateral data analysis MOUs on the GWIC website.
2. Set up an online system that would report the run status
of all of the world's detectors.
3. Carry out a joint technical study of the scientific
benefits of different modes of operation
of a network.
4. Set up procedures for checking a detection claim made by
a single project or a subset of
the global network.
5. Explore how to structure a fully global collaboration.
Item 1 seemed a simple thing to do, and no one
could think of any reasons not to do it. The LSC will coordinate with the GWIC
secretary (Sam Finn) to ensure that LIGO's MOUs are posted.
Item 2 is also not controversial. Again, the
GWIC web site seems the natural place for this to reside. Sam reported that the
only problem he foresaw was having GWIC members fulfill their responsibility
for updating the system. Rai said that at least a
"last updated" date could be posted with each entry. Another
possibility might be to set up a link between the GWIC site and internal sites
of inidividual projects that they would maintain
anyway for their own purposes. Here again, the GWIC secretary and the LSC will
work together to set up LIGO's contribution to this
new system.
The technical study was the subject of
substantial comment. A key goal of the study should be to determine when
network analysis makes sense. Once we understand this, then we will have
guidance in facing the question of which detectors should be in the network for
which kinds of searches. Bernard Schutz pointed out
that the act of carrying out the study jointly could also build confidence
among the participants, and help ease the way for future joint analyses of
data.
Patrick Brady and Sam Finn raised questions
about the composition of the study team. How much should be based on
pencil-and-paper, on simulated data, and on real data? It seemed sensible to
focus first on studies that don't need real data, to lay out the basic issues;
at this level of study, all projects can contribute equally. Questions that can
only be answered with real data are those to be addressed as the time for a
true joint search approaches.
Albert Lazzarini
informed us that TAMA is indeed interested in extending their MOU with LIGO to
cover S4 and perhaps beyond. Peter Saulson reported
on discussions with Eugenio Coccia
in which he expressed strong interest in collaborating with LIGO on data
analysis; Coccia also mentioned ongoing discussions
with Virgo. So it looks like all of the active detectors are as interested in
collaborating as one could hope.
One of the most important open questions is how
to actually organize the technical study. It should not be divorced from
previous work on collaborative data analysis, but at the same time can't unduly
burden people who are carrying major responsibility for ongoing analysis
projects; that is a tricky question to resolve. Patrick pointed out that the
technical issues are different enough for different classes of signals that the
study probably ought to have separate subcommittees for each signal class.
Peter Saulson will
bring these suggestions to the GWIC committee, with the recommendation that we
start on this technical study as soon as possible.
Discussion on checking a detection claim was
less extensive. Several members proposed that the LSC should push forward with
its own study of how, internally, we would check a detection, and use that as a
foundation from which to propose procedures for either checking others'
detection claims or asking others to check our own claims. Here, too, the
technical study probably will illuminate the different circumstances under
which one expects other detectors to see a particular signal or not. The LSC
Detection Committee will be reconvened soon to address this part of the issue.
The meeting adjourned before any serious
discussion could occur on item 5.
STATUS
OF LSC MOUs (Petrac)
LSC MOUs
and Research Plans and Progress Reports
For a web page summary showing the
status of LSC MOUs and associated Attachment updates
through August 15th and Progress Reports through February 12th see:
http://www.ligo.caltech.edu/~irena/Revstatus/Reviewstat.doc
SITE
TELECONFERENCE (Lindquist)
A site teleconference was held on
Thursday, January 27, 2005. The following items were among those discussed:
PROPERTY
MANAGEMENT (Chargois)
>From: Ed Chargois
<chargois_e@ligo.caltech.edu>
>From: Linda Turner -
turner@ligo.caltech.edu>
No report.
>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>
SUBCONTRACTS
MANAGEMENT (Petrac, Jasnow)
>From:
irena@ligo.caltech.edu (Irena Petrac)
>From: Ed Jasnow <jasnow@ligo.caltech.edu>
SUPPORT
(Baldon, Lloyd)
>Irene Baldon
>Dorothy Lloyd
PROPOSALS
and REPORTS (Lindquist)
Nothing to report.
DCC Steering
Committee (Lindquist)
We held a meeting of the DCC steering committee on
Wednesday, January 26, 2005. The purpose of the steering committee is to
establish a direction for the DCC over the next year or so. This week the
meeting focused on establishing a process and initiating a requirements
analysis. We have scheduled a meeting next week. By that time we
hope to start collecting lists of needs.
CHANGE
CONTROL/CONTINGENCY MANAGEMENT (Lindquist)
>From: Cindy Akutagawa <cindy@ligo.caltech.edu>
Quality/Safety
(
>From: Bill Tyler
<tyler@ligo.caltech.edu>
The safety audit of the LIGO Caltech campus labs was
completed this week. In addition, a draft of the lab audit report (except
the 40M lab) was distributed to the audit team members for comments and
revisions. A draft of the 40M audit report will be distributed during the
next week. Some of the main concerns identified by the audit team were
the need to increase efforts to dispose of unneeded items and chemicals, and to
improve "housekeeping." There is also a problem with the
extensive use of daisy-chained power cords.
Summary of Commissioning Activities at
LIGO
All at LHO are sorry to see Stefan Ballmer go, returning to MIT to finish his
thesis! We wish him all the best and hope to see him back for visits to
the 4k chair regularly.
A sampling of commissioning efforts at LHO for the week are
bulleted below. Please see the elog for more
details.
4K IFO
2K IFO
DAQ
L1 Commissioning (
---------------------------------------------------------------------
Interferometer Commissioning
Report (
The interferometer locking
has been stable for the most of the week enabling the data collection and DMT
testing during the M6 mini run. Although most of the weekend was spent chasing
the DAQ and slow control problems the interferometer was locked in the science
mode for the most of Sunday night and Monday morning. The interferometer best
sensitivity improved this week from 4 to 5 Mpc (the
overall scale still has uncertainty of ~20% from recent hardware changes). The
EPICS problems and DAQ data corruption errors persisted this week.
Some highlights of the
interferometer commissioning activities:
the atomic clock diagnostic was reinstalled and data
logging restarted.
the interferometer noise budget was updated.
the
transfer function of the oscillator phase noise to the ifo dark port was measured.
the low noise AS photodetectors
were switched to the new RF distribution system. It was found that we are not
limited by the RF distribution system at this time
the HEPI - optical lever correction path was implemented
to reduce the coupling to optical lever from HEPI over the 0.01 - 0.3 Hz band.
Safety and Security (Riesen)
---------------------------------------------------------------------
Found no site safety concerns
during my weekly site tour.
Updated the Laser User and
Authorized Machine shop users signage.
Found no errant beams on all
IO tables during my routine LVEA walk thru.
Assisting Doug Lormand in getting the Photon calibration units light pipes
modified and machined.
Working with Ken Franzen on getting the IPG 100 watt laser shipped back to
the manufacturer.
L1 Commissioning (Peter King)
---------------------------------------------------------------------
Modified a
2-omega I&Q demodulator board (S/N 101). I looked at the trend data for the laser over
the past month, everything seems okay. I also looked at the lock loss
transients but have not found anything noteworthy.
L1 and AdL
Mechanical Engineering (Spjeld)
---------------------------------------------------------------------
- Re-designed Quad Suspension
Installation Tooling fixtures (for review).
- Technical notes document
from ASI Transition Meeting in progress.
- Attempting to post released
AdL SEI models and drawings to PDM server.
- Familiarization of AdL SEI models from ASI, preparing for tooling design.
- Received last two new valves
from Parker; complete six new valves.
- Replaced LASTI servo valve.
- Calibration of new servo
valves.
- Re-design of HAM door
lifting fixture delayed due to ASI meeting.
LLO General Computing and
LIGO CyberSecurity (Roddy)
---------------------------------------------------------------------
Ran another
test early this morning on our router.
The results I have so far are as follows:
3550 with all rules
applied: ~10 mbit
3550 with outside interface
rules removed: ~130 mbit
slow Linux router with no rules applied: ~250 mbit
3550 with all rules
removed: ~360 mbit
There are currently ~1,250
lines of firewall rules, which is why the 3550 is having performance
issues. I am confident that I can reduce this and also improve performance
by switching to a Linux netfilter/iptables
firewall. I am currently working on translating the Cisco IOS rules to iptables rules. This is turning out to be a tedious
task but I believe will be well worth it. Also, after reading through the
documentation, it will be worthwhile to do some testing with QoS enabled on the firewall. This should allow
prioritizing of traffic, ie. LDAS traffic prioritized
over web traffic, etc.
Preparing
for the meeting next week at LHO.
High Power Laser Facility,
Optics Modeling and L1 Commissioning (Franzen)
---------------------------------------------------------------------
1) The IPG laser finally died
after running the high power endurance test of the RTP crystal. We are shipping
it back to the manufacturer for a prompt repair. More bad news is that we can
from the side see a black bullet shaped discoloration bullet at the upstream
end. We will try to study it this more in detail as soon as time permits with a
microscope and take some close-up picture. If it is true it might indicate that
RTP is not a suitable material for an AdvLIGO EOM.
2) Preparing some Melody
based material for short presentation at next weeks
optics simulation workshop at Caltech.
LDAS/Condor Sysadmin and Burst Analysis (Yakushin)
---------------------------------------------------------------------
Condor/LDAS admin:
1) All linux
machines (except for IDE RAIDs and ldas-gridmon which we shall upgrade later) were upgraded to
Fedora Core 3. New Condor and LDAS versions are running now.
2) M6 raw and RDS data has
been archived and published for LDR retrieval.
3) Replaced /dev/hda in node35 and 3 failed T3 disks.
4) /frames are mounted on
each node.
5) Rebooting dataserver
yesterday seems to cause fb1 problems although it should not. Investigating.
from Dennis
Coyne
see also the CDS weekly meeting minutes in the commissioning archives:
no report
Rich
Abbott reporting
1.
Set up travel plans for LLO site visit during the week of 7 Feb. 2005.
Trip will be for general site support of electronics.
2. Met with DCC planning group convened by Phil Linquist.
I am preparing some information outlining perceived issues with electronics
documentation that I obtained from staff members during my recent trip to LHO
3. Preparing list of all instances of AD-620 op amps
being used as pseudo-differential drivers such that a complete check can be
done for proper grounding at sites.
===========================
-
1 set of boards built. Chassis should be assembled by Thursday, then testing will start.
-
Test plan is being written.
===========================
-
New test procedure in progress.
-
Making spares for sites.
===========================
-
LHO set for S4. They have new ISS installed on H1 and may install a monitoring
PD after the mode cleaner for S4.
-
Working on the test procedure.
-
Need a board to send to LLO.
-
Ben found a cable and strain relief appropriate for the 30ft.
run from the PD after the mode cleaner.
===========================
-
2 boxes sent to LLO.
============================
-
Will request priorities at todays CDS meeting.
John
Zweizig
This
week I participated in the the M6 run at LLO. Before
the run we
Peter
King
A
minor modification was made to the state code controlling the laser
Ken
Mailand
The
TCS Chillers have been plumbed in and are running at LHO. John Worden will
install filters in the chilled water lines and metering valves to limit the
flow thru the heat exchangers. The drain on the house chiller supply is too
much with a free flow thru the heat exchangers, some limiting of the flow will
not hurt the chiller performance.
Bill
Kells
On
going work on analysis of scatter data from sites and OTF for
I
am preparing presentation material regarding the
TCS optical design and the astigmatic behavior of the LHO antisymmetric
beam for discussion at the CIT Optical Modeling Workshop to be held of 1/31-
2/1.
Lee
Cardenas, Liyuan Zhang
making all the preparation
necessary to cover all the laser system and equipment.
We'll take care of it by Thursday Feb.
3rd.
This chamber has two samples, white Ceramabond,
and disks of TRA-BOND #2254
color light brown epoxy. Cavity still locked.
Absorption Test Measurement prototype in standby
Scatterometer system in progress!!
The fused silica substrate RM06-B is in the scatterometer
enclosure.
We are scanning this substrate for beam scattering after a preliminary
cleaning.
The fabrication of a mount to hold END TEST MASS BLANK
(40 meter) of ~ 4.92" in dia. by 53mm in
thickness is in hold.
The Quantronix 60 watt laser
Alignment and optical train set-up is in hold due to the
scanning for beam scattering of the RM06-B fused silica substrate.
The laser is shut down due to the chiller in need of recovery.
OTF Lab at Lauritsen ROOM 38
Cavity #3
The contamination test for (6) new disks of VAC SEAL Epoxy samples
is in progress. Cavity is locked and we are taking measurements for absorption
and ring down for contamination loss every day.
The measurements continue to be the same which means, samples are
"clean"
Cavity #2 in standby
A new chamber is been baked and got back.
Misc.. tasks, machining of
small plate to relocate lens holder for the scanning of the substrate
has been completed, drilling of a new output hole on the enclosure has been
performed.
Continue fixing some of the items needed to comply with safety inspection in
the two labs.
no report
no report
Simulation and Modeling
(Bhawal)
Weekly Physics Meeting
-------------------------
Sany Yoshida presented results of simulation for the
Mode-cleaner motion and its effect on laser. Viewgraphs available at
http://www.ligo.caltech.edu/~e2e/ME2ET/Minutes05/050127/
Matt gave an update about
commissioning activities at LLO.
Commissioing Related
----------------------
(Hiro)
The effect of TCS has been studied, including the effect of BS. Also the
astigmatic beam measured by Keita has been analyzed. The results will be
presented in the workshop next week.
(Biplab)
Collected output optics data for Wave Front Sensors from Andri
and Mike Smith and calculated variation in beam-width and accumulation of Gouy phases in the current set-up. These set-ups at sites
are empirically fixed by finding the 'optimum' positions through experiments.
The Gouy phase values of the current set-up at LLO
differ significantly from those in H1 set-up. The Gouy
phase values for H1 set-up matched well with theoretical 'optimum' values
obtained from FFT studies [LIGO Note: T040066].
Despite these
differences, wave front sensor system at LLO is working well.
Plots are posted in LLO
elog (27th January).
Simulation of 40m
interferometer
------------------------------------
(Monica) I'm doing transfer
functions simulations with e2e and Twiddle using a white noise to move the end
mirrors of the simulated interferometer. Comparisons between the two codes are
in progress. The same thing will be done in e2e with sweep sine. Some
improvements to the 40m package in e2e framework have been done to speed up the
simulation .
Modeler
--------------
(Melody) Worked
on performance testing using a stramlined static
library to be used with the FUNC_X dynamic library.
Documenting the attempts used
in speeding up the link process in the modeler.
ALFI
------------
(Bruce) - Completed
implementation of chained Parameter Links and the various dialogs associated
for the setting of.
- Released new Alfi version.
(Melody) Received
a beta version of the JGO 5.1.
Currently
testing it with ALFI.
Data Analysis Activities (Lazzarini)
Brown:
<ol>
<li> Finished the MACHO paper and sent it to the inspiral review committee for approval! We will discuss any
comments or questions at the inspiral face to face
meeting Feb 5/6 and release a draft for LSC approval after that.
<li> Attended a meeting with the GriphynLigo group at ISI to discuss plans for using the
grid to do inspiral analysis. Developed
a short term plan to move the inspiral analysis from
single clusters to the whole LSC data grid. Discussed long term
strategies for the development of the GRID tools used by the inspiral group and making these tools accessible by other
groups (the excess power burst search, the string
search and the ringdown search are currently using
these tools).
<li> Finished the review of an LSC paper for Peter Saulson.
<li> Helped Stuart clean up a few things with the
FC3 upgrade at CIT and LLO.
</ol>
Chatterji:
Working on
incorporating calibration into the Q Pipeline and improving computational
efficiency.
Creighton:
Ihave continued working on the validation code for Einstein@home. The new validator
is working fine, and runs much faster than the older one. In a typical
24-hour sample, 2 of 2500 or so results have been rejected due to file
corruption, and another 2 contain correctly-formatted but highly peculiar data
-- investigations continue.
Mandic:
I worked on understanding the
results of the time-shifted stochastic analysis. In particular, I was
interested in quantifying the difference between the time-shifted and unshifted cross-correlation spectra. This is still work in
progress.
I also worked on preparing
the hardware injections code for the E12/S4 runs. First tests of the inspiral injection code at LLO were successful.
Mendell:
I have updated the comparison
of StackSlide, PowerFlux,
and Hough methods, showing the Detection Efficiency for a Fixed False Alarm
Rate on the password protected PULG S2 investigations page:
http://www.lsc-group.phys.uwm.edu/cgi-bin/enote.pl?
nb=puls2stackslide&action=view&page=22
I have posted example
estimated S3 H1 upper limits from the StackSlide code
on the password protected PULG S3 investigations page:
http://www.lsc-group.phys.uwm.edu/cgi-bin/enote.pl?
nb=puls3stackslide&action=view&page=2
I will be attended in the
PULG F2F meeting in
Shawhan:
* Investigated and debugged
some lalapps build problems.
* Reviewed pulsar analyses.
* Did maintenance on conlog code and configuration files in preparation for M6
and E12 engineering runs.
* Prepared for hardware
signal injections during E12 and S4 runs.
Weinstein:
- Did a careful read of
- Last week, did a careful
read of the LIGO-TAMA burst paper and passed comments on to Patrick and the
Burst group.
Lazzarini:
Working on
transcribing the toy maximum entropy model to matlab. A number of people who do not have access to Mathemtica would be able to use it under matlab. Effort much more time consuming than I thought.... Working with Vuk on developing and better
understanding the time shift and differencing signal recombination analysis for
the H1+H2 stochastic background measurement.
LIGO Data Analysis System
Software Systems (
LDAS:
Continued to support the
upgrades at the sites to the new version of LDAS as each site is upgraded to
Fedora Core 3.
Suspended work on porting
LDAS to work with Tcl 8.4.9. One minor issue was
resolved but the next issue will require a significant effort. Began working on
the more urgent issue of the new memory leak in the diskCacheAPI
associated with the migration to Fedora Core 3. Only this API show the increased memory leak of all the LDAS APIs running
on Fedora Core 3. It is suspected that the issue is in the use of dynamically
loaded libraries which are used differently in this API from others to assure
thread safety.
Completed fixes for Problem
Report 2778 (test for 290 node clusters), and for PR 2775 (cmonClient
crashes on large datasets). Still working on PR 2773 to analyze correlations of
different jobs to memory leak in the dataConditionAPI
(mentioned above).
Ran locked segment
walk-through test on LDAS-Test and updated the results on the website.
Installed DB2 8.1.5 on CIT
and LLO metaserver boxes and other LDAS tandem
systems. Restored databases from backup and updated resource
files for these sites.
Began working on merging
changes left by Mark Turner for the LDAS diskCacheAPI
into the next release of LDAS. Further testing will be needed, as well as
porting to Fedora Core 3.
Tcl/Globus:
Had a group meeting to go
over progress and discuss the next steps in the project. Want to set up enough infrastructure so that the overall size of the project is
assessed and progress can be measured. Also want to have a clearer division of
the packages in Globus so that the work can be
divided up cleanly without interference between the developers.
Created a
new webpage on the TclGlobus webserver
to track progress of the wrapping of Globus into Tcl calls, along with test scripts and the associated
documentation. The page is linked
off the may home page.
Finished
coding XIO attributes and control functions to support pointer data types and
added tests to the Tcl test scripts.
Worked on implemention
of several blocking Globus I/O functions (6 out of
the 96 in the package):
a) globus_io_file_open()
b) globus_io_read()
c) globus_io_write()
d) globus_io_try_read()
e) globus_io_try_write()
f) globus_io_writev()
Grid Computing:
Attended a two day workshop
at USC-ISI to learn about and use Pegasus abstract workflow management tools.
Conducted hands on instruction using a demonstration example. Discussed changes that would facilitate using Pegasus in the Inspiral and Stochastic data analyses.
Hardware Systems (
Caltech
-------
(Phil Ehrens)
* Various small tasks
associated with LDAS 1.4.0 release.
* Engaged in some minor
run-around with the Maxtor VIP blanket RMA program.
* Continued work on patch.tcl remote system administration utility.
(Stuart Anderson)
* Helped upgrade CIT and LLO
LDAS clusters to FC3 and LDAS-1.4.0, work on LHO has just started.
* Determined that improved
FC3 NFS performance will allow us to start testing direct cluster access to
SAM-QFS filesystems.
* Worked with Dan to retrieve
and archive all the M6 frames.
(added
by Lazzarini)
* We are providing spare
cycles to CaRT for numerical relativity calculations
on a non-interference basis.
MIT
---
(Keith Bayer)
* Created several lsc accounts on cluster.
----------
(Igor Yakushin)
* All linux
machines (except for IDE RAIDs and ldas-gridmon which we shall upgrade later) were upgraded to
Fedora Core 3. New Condor and LDAS versions are running now.
* M6 raw and RDS data has
been archived and published for LDR retrieval.
* Replaced /dev/hda in node35 and 3 failed T3 disks.
* /frames are mounted on each
node.
* Rebooting dataserver yesterday seems to cause fb1 problems although
it should not. Investigating.
-------
(Greg Mendell)
* Science-mode discovery for
E12 online analysis is ready to go using the command line tool LSCsegFind (in the lscsoft/glue
CVS repository) and web pages set up by Peter Shawhan
and John Zweizig.
* RDS generation for E12 is
ready to go at LHO, with only the channel list to be finalized before the run
starts. RDS generation has been tested at CIT using LDAS v1.4.0, and
update createrds scripts have been tested at LHO and
CIT. The E12 RDS generation process will be monitored from the usual URL:
http://ldas-jobs.ligo-wa.caltech.edu/dsorun/cgi-bin/index.cgi.
(Note
that
LDAS is down on Jan 27-28, if you visit this page.)
* More information about
science-mode discovery, rds generation, and all
online analysis tasks is available on the DASWG online analysis project home
page:
http://www.lsc-group.phys.uwm.edu/daswg/projects/online.html
General Computing (Wallace)
MIT:
(Keith)
-Compiled and ordered matlab concurrent license toolboxes
-Ordered standalone matlab licenses for several laptop users
-Created accounts (gc and dmt)
for several UROPS:
Silvia Poggi
Katherine Romer
Benjamin Bloom
-Worked with several UROPs to get started on system
-Looking into X window
servers
-Installed new software on
library PC
-Looking into problems with dtt dataviewer on GC network
-Restarted aneirin (cds net) after power
outage
-Ordered new laptop for postdoc
-Ordered Femlab
software
(
-Ran another test early this
morning on our router. The results I have so far are as follows:
3550 with all rules
applied: ~10 mbit
3550 with outside interface
rules removed: ~130 mbit
slow Linux router with no rules applied: ~250 mbit
3550 with all rules
removed: ~360 mbit
-There are currently ~1,250
lines of firewall rules, which is why the 3550 is having performance
issues. I am confident that I can reduce this and also improve
performance by switching to a Linux netfilter/iptables
firewall. I am currently working on translating the Cisco IOS rules to iptables rules. This is turning out to be a tedious
task but I believe will be well worth it. Also, after reading through the
documentation, it will be worthwhile to do some testing with QoS enabled on the firewall. This should allow prioritizing
of traffic, ie. LDAS traffic prioritized over web
traffic, etc.
-Preparing for the meeting
next week at LHO.
(Christine)
- Network usage can be seen
at
http://www.ligo-wa.caltech.edu/~christin/mrtg/
198.129.208.1_198.129.78.122.html
- Two site computers
connecting to the network via DHCP were constantly requesting IP addresses that
had not been assigned to them. This was causing IP address conflicts for other
computers trying to use DHCP. Those two computers have been given static IP
addresses while I investigate why they were behaving badly.
- Set up a meeting with
Albert, myself and the two main players at PNNL to discuss the upcoming network
connection changes. I am also continuing to talk with NoaNet
about a possible alternate network connection. Richard left messages for
his contact at the phone company, but he hasn't received a reply.
- Fixed a laptop that had
been dropped or something. The cdrom drive was
loose and jammed at an angle in the case. The floppy drive was also
loose. Took the opportunity to upgrade all the software
on the laptop.
- Putting together some
drawings of the current LAN configuration and security measures for next weeks cybersecurity meeting.
- Created a couple new user
accounts and other misc. user support.
CIT:
(Veronica)
- LIGO: Win2k security
audits and VRVS tests. Updates to the LIGO website.
Updates to the
- LSC: Set up a website
for the upcoming March meeting. Updates to the webpage
for papers under review. Assisting Irena Petrac with setting up a webpage for MOU reviews.
- CaJAGWR:
Website updates. Videotaped and compressed the last talk for streaming.
- Project Science:
Prepared the information on the attendees of the last workshop for the NSF.
(Larry)
-Purchased a couple of misc.
network items. Ordered and received a new computer for Janeen.
Received two new rack mount computers to replace a couple of
the PC servers. Still working some issues out with the
Foundry maint. contract.
There are some errors in the paperwork that Foundry is now working out.
-Spent time going over logistical
issues in relation to the abatement of the Subbasement and basement of Bridge.
The time schedule has been bumped up a week so a few more adjustments have been
made. All of the people affected will have temporary office locations.
-Spent a great deal of time
restoring files for people.
-Worked on a couple of backup
items. The increased amount of data being backed up has made it to where we
only keep about 1 weeks worth of daily backup tapes.
We've started working on a new scheme to get us back to two weeks worth.
-Added a number of new user
accounts. Along with that a number of modifications for existing accounts has taken place. Setup a new calendar account and
modifications to others.
-Resolved a couple of
printing and PC issues at
-Assisted the DCC with a
number of issues. Downloading of files from different locations and getting
files moved for them internally.
-Mail serviceshave
been pretty normal with the exception of mail using Japanese fonts. There have
been some problems getting the filters to re-send e-mail with this font. Something to work on in our spare time. Going through the
filters has been averaging about 45 minutes a day when there are no problems.
Mail Statistics Jan 20, 2005
- Jan 26, 2005
Rejected
9,901
Virus
1,414
False Positive
109
Allowed 12,385
Total e-mail 22,286
From: "Thomas Frey"
<tfrey@ligo.caltech.edu>
Progress Period from 01.21 to
01.27
Out of the office on
01.24, 25, and 26
·
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 work on the 40-Meter schedule changes.
§
Executed telcom with
Carol.
§
Continued work on AOS schedule changes.
·
ROSTER
DATABASE:
§
Assisting Irena as needed on record changes.
§
Continue to assist Irena with setting up her web
site to accommodate review of attachment As.
·
COST
BOOK DATABASE:
§
Continued work on changes to estimates for AOS and
IO.
From: Carol Wilkinson
<wilkinson@apex.ligo-wa.caltech.edu>
Advanced LIGO Project Management
Dwight Carter from ARES Corporation in Richland, Washington will be working for
the next six months with Carol Wilkinson and Thomas Frey on Advanced LIGO
Project planning. He has expertise in all aspects of project planning from
scheduling to cost estimating. He will be concentrating on updating cost and
resource estimates and on developing a cost tracking system for the MREF funded
portion of the project.
Adv.
LIGO Systems
from Dennis
Coyne
See
also the AL
Systems web page
Records
Of Decision or Agreement (RODA)
See
also the RODA
status web page
No
new RODAs this week
Requirements
·
nothing new
Interface
Issues
See
the "Interfaces" section of the AL Systems web
page
·
worked on some interface issues with the SUS group as part of the Monolithic
Suspensions Summit Meeting:
1.
The SUS quad violates the allocated planform
envelope. For the ITMy chamber this impinges upon the
space allocation for the BS pick-off mirror structure. SUS will look into
trying to minimize their envelope. SYS will look into a modification for the
layout which may mitigate the interference.
2.
SUS has asked if the current SEI 2" x 2" hole grid in the optics
table can be changed to a 1" x 1" optics table hole
grid in order to reduce the size of clamps used to mount structures to the
table. SEI has estimated that the additional cost is $9.7K per chamber. This is
still under active consideration.
Reviews
·
AL SEI/BSC System Critical Review: Carol Wilkinson circulated a draft report to
the SEI team and review committee; Report should be finalized this week.
From: Ken Mason
<kmason@ligo.mit.edu>
Advanced LIGO Seismic Structure
SEI Structure:
ASI has posted a matlab tool for analysis of the
springs and rods onto the ASI web site this week. There have
been no additional fabrication drawings submitted.
Larry Jones has submitted 50 ASI contract files to the DCC.
Ed Jasnow has worked out an agreement with the
supplier of the maraging steel to hold the material
set aside for ASI. This is important as there is a 25-28 week delivery on this
material if we lose this order.
Actuators:
The actuators are scheduled to be delivered by 1/31, but it appears PSI
will miss this date.
Displacement Sensors:
Nothing new.
Seismometers:
Nothing new.
From: Janeen Romie <romie_j@ligo.caltech.edu>
AdLIGO Suspensions
Working on tablecloth design details and interface
with Calum, Tim and Mike PL.
Met with Riccardo about maraging
steel. We have some sheet material that he may use. He showed us his rolling
machine.
Reviewed Justin's UK Scope document and provided comments.
Reviewed some drawings for Ian and Calum.
From: Michael Smith <smith@ligo.caltech.edu>
40 METER
I completed a preliminary design of the output mode matching telescope (OMMT)
for the output mode cleaner (OMC). The design is similar to the design of the
input MMT; however, it uses off-the-shelf spherical mirrors. The
calculated coupling efficiency into an OMC with a beam waist of 0.37 mm is 99.5
%.
I updated the layout of the 40m output chamber and beam paths to provide for
the OMMT, 2 PZT steering mirrors, OMC, and in-vacuum photodetector
with focus lens.
I prepared a cost estimate for these additions to the output beams.
VIRGO VISITORS
I was host to Paolo La Penna and Olivier Francois
from VIRGO. Discussions were held regarding the different results obtained by
VIRGO and by LIGO on the output mode cleaner.
The apparent differences are: 1) the LIGO IFO is 100 times more sensitive than
VIRGO and therefore is more sensitive to noise generated by the OMC, and 2) the
VIRGO OMC is on a suspended optical bench and may be less noisy than the LIGO
OMC. I built an off-axis parabolic telescope breadboard and assisted the VIRGO
visitors in investigating several alignment procedures using a combination of
autocollimators and expanded collimated laser beam. The best procedure, similar
to the procedure we had used for the LIGO PO telescopes, was to use a
projection autocollimator and a receiver autocollimator for the initial, single
pass setting of the focus and on-axis alignment of the parabolic mirrors; this
was followed by retroreflecting from an external
mirror and double passing through the telescope back into the projection
autocollimator for the final focus and mirror alignment. Trying to achieve the
preliminary alignment with a single autocollimator and a retroreflecting
mirror was extremely difficult because of the extreme alignment sensitivity
when double-passing through the telescope. Substituting a collimated laser beam
for the projection autocollimator was helpful for establishing the preliminary
alignment, but was not as easy as using a projection autocollimator.
CIT OPTICAL MODELING WORKSHOP
I am preparing presentation material regarding
the TCS optical design and the astigmatic behavior of the LHO antisymmetric beam for discussion at the CIT Optical
Modeling Workshop to be held of 1/31- 2/1.
From: Peter King
<pking@ligo.caltech.edu>
AdvLIGO PSL
===========
The draft conceptual design
document was assembled. A working group discussion about the document is
to be scheduled soon.
For additional information about this report, contact whitcomb_s@ligo.caltech.edu