The Project Control Meeting
Agenda for Monday June 28, 1999 will be:
(Meeting time: 10:30 am Pacific Time)
LHO 2K Mode Cleaner starting to lock in short stretches
We have all of our summer students engaged in their research. This includes
three undergraduates, three high-school students and two high-school teachers.
Additionally we have three long-term (> 2 months) visiting graduate
students from Caltech, MIT and U. of Oregon.
On Tuesday, June 22, we had a victory celebration for the conclusion
of the beam-tube bakeouts at LHO. Mark Lubinski and Mark Guenther have
now started
new assignments to aid detector installation. We sorely miss Corey
and Hugh and cannot wait to get them back.
Facilities:
-----------
O. Matherny
Water Well Problems: To get water out of a well should be easy. It is
not new technology, yet we have a myriad of problems, from pumps burning
up to flange
gaskets failing. Hopefully we will get all the problems corrected shortly.
New staging Building: The contractor is 95% complete with the building.
Interior painting and clean up is remaining.
Compressors: Discussed the problem again with Levernier. They will go to Apollo's Bonding company to seek restitution.
Bake Oven:
----------
(K. Ryan)
LHO Vacuum Bake Oven A load #37 consisting of three HAM bellows was
released last week. The Vacuum Bake Oven A extender spool was used
for the first
time for this load. This spool extends the overall length of
Vacuum Bake Oven A by approx 20". The additional length facilitated
some individual long pieces
comprising load #38.
LHO Vacuum Bake Oven A load #38 consisting of mixed (approved by waiver)
aluminum, stainless steel and glass components as part of COS optical baffle
assemblies was released this week. One of the "long" (telescope
tube?) parts was physically dropped during unloading which created a leak
in the RGA arm of the
vacuum bake oven system. This part was deemed undamaged by Mike
S..
LHO Vacuum Bake Oven A load #39 consisting of two 10" optics, a folding
mirror and the beam splitter mirror was aborted midway through its vacuum
bake
cycle. It was determined that the locations of the magnets were
incorrect, so this bake was stopped. Load #40 is slated to consist
of more Mike Smith beam
dump/baffle parts and should be released on Monday June 8th.
"In other news...." fabrication of Vacuum Bake Oven B has begun.
When available, this vacuum bake oven will allow for quick turn around
of small parts/loads.
Seismic Isolation Installation:
-------------------------------
(C. Gray, H. Radkins)
Hugh and Corey are working in Livingston this week.
PreStabilized Laser:
--------------------
(Rick Savage)
This week has been spent working with Hiro Yamamoto and Malik Rakhmanov
on the WA-2k-ifo model. With the help of Jay Heefner and Peter King, we
think
we now understand the electronics as implemented. Most of the
parameters have been entered into the model and we are beginning to shake
down the control
loops (in the model). We hope to integrate the IOO modecleaner
length control loop and PSL control loops by the middle of next week.
Optics:
-------
(D. Cook)
I would like to thank the sub-system leaders and
others who have responded positively to my request to have their people
prepared with laser "baseline" eye exams
before coming to Hanford. Reviewing the Visitors
Form on the WEB page before traveling to the sites will also short cut
the
amount of time needed by visitors to get settled
in.
The ITMy-2k and the FMy-2k are now installed into BSC8 "thanks" to all
who participated. The FM took two attempts, using two different setups
as the laser
autocollimator did not have enough intensity to make the required double
pass on the mirror. The returning signal was too weak to detect. The COC
mirrors are very
"lossy" for the 670nM laser autocollimator. The autocollimator manufacturer
will not increase the power due to safety liability issues. This required
setting new survey
monuments and repositioning the optical flat, which allowed us to shoot
from the south door with a single pass. I believe Stan and I have smoothed
out the
BSC-LOS installation techniques making the alignment positioning easier
to attain. I am working on a document that reflects the latest techniques
for installing the
LOS optics into the BSC and HAM chambers. We should have the optical
levers installed by this afternoon so we can monitor the ITM and FM
positions. We have a lot of activities ongoing in the optics and vacuum
prep labs with 4 Core optics being processed along with several COS components.
We have
two student projects in there as well. One measuring the reflectivity
of the Core optics and the other looking into the epoxy
bonding processes.
As the laser beam is now in the beam tube and it is entering the IOT7 ISC table we need to be more cautious in how we are working in this area. Beam paths are contained by the enclosures and in light pipes, but as the beam paths increase and the system continues to grow we need to continually think about any changes or additions to laser safety plans.
Core Optics Support:
--------------------
Betsy Weaver
Last week and this week have been very busy! I assisted in the
processing of the 2k BS mirror and the 2k FMx mirror with Mark Barton.
We had our good days,
and our bad. Needless to say, the processing of these two mirrors
will be ongoing next week as well. I also assisted in the initial
installation of the ITMy into BSC
8. Late in the week, I switched gears and began to unpack box after
box of Mike Smith's COS stuff. The Beam Dump (BD) assemblies for
BSC 8 were loaded
into the vacuum bake oven on Friday and taken out on the following
Tuesday. Mike and Steve Bell arrived Monday, and after unloading
the oven, we began
assembling beam dumps in the vacuum prep. lab. Wednesday, we
installed our first beam dump into BSC 8. It went well, and the next
one (tomorrow-Friday) will
go even faster. We are currently in the midst of cleaning the
BSC 4 BD and PO Mirror hardware, to put into the bake oven today. Busy!
Computing Systems:
------------------
(C. Patton)
This has been a very busy week for Sys. Admin. While trying to
troubleshoot a scsi error on rainier, the PROM on the clock board went
bad. Fortunately we have
a service contract for rainier and I was able to get a replacement
clock board installed the next working day. The problem occurred
Friday evening and was
replaced Monday afternoon. There were some minor installation
problems, but all is well now. The scsi problem is still a mystery
and still happening intermittently.
I'm still trying to troubleshoot it.
With the start of the Summer programs I have created 12 new user accounts
in just the last few days, one or two at a time as the students showed
up. Thanks to
Suresh for getting the accounts at Caltech set up.
I have set up an apps4 directory on rainier for installation of freeware
software applications, like gnuplot, gcc compilers, etc. It seems
that this software is updated
every other month and it would be a full time job just trying to keep
the latest version installed. This way anyone
who needs a particular version can install it themselves. Also,
if someone needs a particular software application installed immediately
they have a place to put it.
A path problem with the current gnuplot software was fixed. There
were several problems with frozen email processes which were cleared up
by rebooting the
email server, apex. One of the Sun workstations lost its network
connection, finally traced it to a crimped network cable. I have
been helping get a list of required
patches for the CDS servers. I ran the SUN Y2K Compliant scan software
to determine patches for Y2K on the CDS computers.
Electronics & Electrical Systems:
---------------------------------
(R. McCarthy)
Accelerometer cables in the LVEA have been installed and terminated
in rack 2X5. Josh could not terminate one cable due to lack of connector.
He contacted
Matt Smith for a replacement.
Phone circuits to the Mid and End station are being installed this week. Hopefully they will be fully functional early next week.
The UPS for CDS equipment in the MSR arrived and installation began.
One problem arose in that an incorrect switch was sold to us. We
are working on getting
the proper equipment.
Worked with Jay H. on testing out IOO equipment associated with the
Mode Cleaner. Interesting problems have been solved.
Seismic installation: This week's activity was centered around installation work on BSC3. Both support tubes and the support table/downtube were installed, and all 4 V-block assemblies were installed and torqued. Also, all 4 bellow assemblies, which includes the inner bellows (connects to support tube) and the large outer bellows (connects to the chamber) have been torqued. The work platform end-sections and their hand rails were installed. We are presently staging all equipment and tools for Isolation Stack installation and positioning the downtube on the isolation stacks. This activity will begin friday 6/25/99. (Rich Riesen)
We have finished baking the first LOS and are preparing to bake parts for the SOS. We have received a replacement forepump, and will install it before pumping down the SOS parts. (Tom Evans)
ISC-Initial Alignment/SEI: All the buildings at LLO have baseline monuments parallel to the LIGO Global coordinate axes (X & Y) as defined by LIGO-T980044-05. These baselines are offset from the axes by 1850 mm. The monuments are a combination of punch marks on brass plates epoxied to the Beam Tube Slab, scribe marks on the VEA floors, and targets glued to the walls. Each building has at least three monuments inside and the vertex has seven plus the intersection point of the x and y axes (IAM-L2). Further work remaining includes using these monuments and baselines to locate the final IAM monuments and also establishing the vertical control for Optics Table (SEI) positioning and initial alignment instrument setup. (Hugh Radkins)
Optics: Received two additional frames for the new flowbenches. Installed, cleaned and leveled breadboards within the flowbenches in the Vacuum Prep lab. Received, steam cleaned and Liquinoxed additional parts baskets for the bake ovens, and ordered a larger air-bake oven for optic and suspension work. Receiving an increasing quantity of optics and suspension components, which are being stored in the labs. Machined and modified tooling parts in the shop for Seismic Installation. Received 4 wall units from LISTA for shop storage which have been set-up. Continue to receive hardware and tooling for general site support.
Electrical installation: We have installed the fiber connection
between the Mass Storage Room and the fourth control computer in the Control
Room. That computer is missing the ATM card. Juilien is ordering us one
to fulfill our immediate need and Rolf is ordering some for our future
needs. A temporary 10base-T connection will be made until the board arrives.
Doug Armen from Creative Presentations in Metarie will be here to hook-up
a Proxima AV9310 multimedia projector in our control room on June 30 for
a demonstration on July 1 at 10:00 am cdt. Cable tray in the South End
Station is 95% complete. Cable tray in the West End Station is 50% complete.
The cable tray job will be complete next week. Juilien has prepared a rather
extensive list of testing instruments that are not currently in the Electronics
Lab. Some have been signed out while others are just missing. There is
some instrumentation laying around in the West End Station but wedo not
know what is being used and what is not. Anthony will be checking with
some of the people that he has been working with to see if any of this
can be recovered. We may need to discuss what to
do about this since it has clearly gotten out of control. The final
assembly and wiring of the SOS test rack is underway. Anthony will be getting
software updates in the next few days. He and I will begin I/O testing
of that rack in the next week. We have received three signal generators
required for the LSC & ASC modulation system from Jay. More are due
soon.
(Rus Wooley, Juilien Svoboda)
Beam tube bakeout: The cryo pumps for BT bake have been staged at the pump ports and are being installed and leak checked. We have stripped the insulation at the cable attachment points and reinstalled the insulation that was removed for alignment. New personal to support BT bake are being brought up to speed. (Allen Sibley)
General computing: We have received and installed an 8mm tape drive. (Tom Evans)
Weather Station: 162 for weather station has been configured and installed in mass storage room. Code for data logger that avoids open and closing the CSI port is now being tested. Problem of 162 shutting down being investigated. Database file modified to show polar plot of wind data. Interface box did not fix noise problem and Campbell Scientific is looking into this problem. (Anthony Rizzi)
GRASP: Progress made on snapshot program and optimalf--currently
debugging c-code... A. Rizzi organized a conference call with Bruce Allen
and Adrian Ottewell and Mike Werda to discuss collaboration and our activities
and future plans to modify grasp.
(Anthony Rizzi)
----------------------------------------------
Interferometer Sensing and Control -- M Zucker
(WBS 1.2.1.1.6, 1.2.1.1.7)
----------------------------------------------
Interferometer sense/control (Zucker)
-------------------------------------
Zucker, Fritschel, Mavalvala, and Daw (among others) will be at LHO
next week for a plethora of IO commissioning, ISC installation, initial
alignment, and other miscellaneous tasks.
No major site shipments are planned for the next several weeks, save
some ETM optical lever supports (see Matt Smith's report below).
A few PO's slipped through the cracks and were not rediscovered until
the Caltech purchasing "blackout" had achieved totality; so far, these
are being covered OK by MIT purchase "loans" and/or the generosity
of
CIT P-card holders. No threat to critical path items is currently
foreseen, although we have some vendors getting pretty sore at us.
Livingston initial alignment baseline monument survey (H. Radkins)
------------------------------------------------------------------
All the buildings at LLO have baseline monuments parallel to the LIGO
Global coordinate axes (X & Y) as defined by LIGO-T980044-05.
These
baselines are offset from the axes by 1850 mm. The monuments
are a
combination of punch marks on brass plates epoxied to the BeamTube
Slab,
scribe marks on the VEA floors, and targets glued to the walls.
Each
building has at least three monuments inside and the vertex has seven
plus
the intersection point of the x and y axes (IAM-L2). Further
work
remaining includes using these monuments and baselines to locate the
final
IAM monuments and also establishing the vertical control for Optics
Table
(SEI) positioning and initial alignment instrument setup.
#MZ note: This is an extraordinary
level of accomplishment for
the short time Hugh et al
have been on the job. These
monuments will really help
us get the core optics in straight
the first time at LLO with
high confidence. Thanks guys!!
Core optic installation alignment (MZ for K. Mason, M. MacInnis)
----------------------------------------------------------------
The Y arm folding mirror FMy and 2km cavity mirror ITMy were installed
and fine-aligned to global references last week and this week,
respectively.
The reflectance of the beamsplitter for the IAS autocollimator beam
at 45 degrees was checked (Stan & others) to verify that the
BS will not suffer from the low-power readout problem found with the
FMy (discussed here last week).
Installation and tuning of the FMy and ITMy optical levers is ongoing.
ISC Fabrication (M. Smith)
--------------------------
The ETM transmission monitor parts have been placed on order with all
the
various vendors. Longer lead times are 3-4 weeks.
The optical lever platforms are almost complete. The legs are
painted, the
support weldments are ready for paint, and the table tops are at machining.
#MZ these are for the ETM optical
levers; we made a late design
change to simplify the supports,
mainly to save $, but they're
coming in "just in time" as
a result. Other 2k optical levers
are all delivered and ready
to go (if not already going).
The Kinematic plates are all finished and were shipped this week.
All the
assembly hardware has been delivered as well, to Hanford.
ISC supervisory control/diagnostics coding (Ed Daw)
---------------------------------------------------
This week I have been working on upgrades and
improvements to routines for diagnostic software
for the GDS system, in preparation for my visit
for the next fortnight to Hanford. The software
is documented on the MIT ligo web site (pointer
on the LIGO homepage) under current research,
diagnostics, gds, [fft,avg].
ISC installation & implementation (Fritschel, Mavalvala)
---------------------------------------------------------
o LHO Mode Cleaner update:
Last week we completed the in-air alignment
of the mode cleaner, and put the doors on HAM
7 & 8. We positioned the
sensing table IOT7 and aligned the two output
beams onto their beam
lines. This week the crew (Haisheng, Rana, Jay)
first obtained short
(~10 sec) locked stretches of the mode cleaner
still operating in air!
#MZ note: YAHOO! Way to go.
They then proceeded to pump out the system. They
are now working on
tuning the various loop gains to achieve a more
robust lock.
o Back at MIT, I (PF) have mostly been working on finishing up the ASC
Epics code.
-------------------------------------------
Lasers and Optics -- J. Camp
(1.2.1.1.2, 1.2.1.1.3, 1.2.1.1.4,1.2.1.1.5)
--------------------------------------------
Prestabilized Laser -- Peter King
--------------------------------------------
- During the previous reporting period, the LLO 4k IFO PSL frequency
stabilization servo was locked. However the loop oscillated at
high
frequencies and exhibited some low frequency oscillations (~ a few
Hz).
The alignment of the phase-correcting EOM, located between the NPRO
master
oscillator and the power amplifier, was checked and seemed okay by
previous
standards. A half-waveplate inserted before the EOM failed to
reduce the
amplitude modulation on the light, when a signal was applied to the
EOM.
This suggests some parasitic cavity in the optical train to the PSL
reference cavity.
- The EPICS files for the LHO 2k IFO PSL have been re-organized.
Some
files were altered to automatically load the pre-modecleaner lock
acquisition and slow loop software whenever PslVme, the Baja47 IOC,
reboots.
- The request files for backing up and restoring the PSL EPICS settings
have been written and tested. A user's document is currently
in
preparation.
Input/Output Optics -- Dave Reitze, UF
-----------------------------------------
The big news
of the week is the successful locking (both in air and
in vacuum) of the mode cleaner.
It was truly a team effort with
Jay, Rich, Haisheng, Rana, Peter
K, Stan, and Rai participating.
The MC was locked to the TEM_00 mode in air on
Tuesday morning for
typically several seconds. After pumpdown
and realignment, the MC
locked in vacuum for up to 2 minutes, long enough
for preliminary
diagnostics:
1) Cross coupling between position and pitch/yaw
motion of the mirror
(MC2). We need to diagonalize the sensor/actuator
matrices to minimize the
cross coupling.
2) Scattered laser light picked up by the OSEM
sensors excites the mirror
motion when the cavity starts resonating. Clear
correlation can be seen
between the OSEM sensor signal and MC transmitted
light intensity. We also
can see the scattered light in the chamber using
camera or IR viewer.
3) When the MC is locked, in both the control
signal and transmitted light
signal we see a oscillation at about 1.5-2 Hz
(close to the stack
resonance).
Experiments are ongoing to understand these things,
measure the MC
length, frequency noise, and test the PSL stabilization
loop.
Several things were learned in the alignment of
the MC which will
result in a slightly revised procedure.
Andreii Pashin is developing and testing the alignment
fixture for
centering the beam on MMT3.
Core Optics Procurement and Metrology -- GariLynn Billingsley
-------------------------------------------------------------
We've got a short run on one of 6 measurements for SPETM04, which is
the
next optic to go to Hanford. The temperature then changed by
0.5C, so
we're working on getting the room back to near 20C before we take more
data.
Almost No report received.
Core Optics Coatings -- Helena Armandula
--------------------------------------------------
REO Contract - COC's coatings: The recently coated optics are arriving
at
Caltech. Received:
SPETM05 and 07; 4ITM02-C and 4ITM03-C
Three large and four small coated parabolas, part of COS, have been
received at Hanford.
One large coated parabola has arrived at Livingston.
Core Optics Support -- Michael Smith
------------------------------------
(Mike Smith is at Hanford this week.)
--------------------------
Isolation Group -- M. Fine
--------------------------
>--------------------------------------
>1. Electronics Rack:
>The rack assembly has been completed. The power has been turned
on and Hytec
>is currently debugging the electronics. There have been no problems
>identified at this time. Software changes are being incorporated
into this
>rack, including changes suggested by Hugh and others to improve
>software performance.
>
>2. Scissors Tables:
>Hytec has received the April shipment of 8 scissors tables from Hand
>Precision. The May delivery has not been received. The assembly
efforts at
>Hand have slowed as a result of the Fine Stage delivery. The
8 tables
>delivered to Hytec will be assembled and delivered to LLO on the next
>shipment.
>
>3. Fine X-Stage:
>Hand Precision has delivered one assembly to HYTEC on last Thursday.
>There were some minor machining errors that have been corrected.
>HYTEC is working through the assembly procedure to ensure proper machining
>and fit, as well as completing the assembly procedure. The hardware
for 4
>fine actuator assemblies was shipped to Hanford last Friday; one has
arrived
>and the remainder are still in transit.
>
>Suspension -- (Janeen Hazel/Mark Barton/Mike Fine)
>-------------------------------------------------------------------
>1. Report from Janeen:
>-Mark Barton has discovered a problem with Dennis Rose's surface normal
paper
> and determined that the BS and FMx are balanced incorrectly. Stan
and Larry
> are removing the optics from the oven. I hope to have Betsy remove
the guide
> rods and wire standoffs from these optics, with Mark's new, optic-preserving
> method. Hopefully, she can reglue new guide rods on before friday
night so
> Helena and I can rebalance those optics next week while we are at
LHO.
>-PAM brackets fabricated from PFA 440HP are due here tomorrow.
>-Oliver has started to serialize and track the osems. I have two small
osems
> that Oliver measured a full-light voltage of 1.45V. They are rejected
below
> 1.5V. I will take them to LHO next week and check that voltage with
the
> suspesnion controller to compare the values.
>
---------------------------------------------------------
Detector Systems Engineering -- D. Shoemaker/D Coyne
(WBS 1.2.1.1.9)
---------------------------------------------------------
Physics Environmental Monitor(Matt Smith, David Shoemaker)
-----------------------------------------------------------------------
This week I visited Livingston to ascertain the status of PEM equipment.
I had
unpacked a lot of the material and placed them in a dedicated PEM storage
area(for now anyway) in the mechanical room.
I installed the PEM interface plates an LHAMS 1 thru 4. There
are two
minimal interference problems with the cable trays. Rusyl Wooley
will make
the necessary modifications.
I assembled the, LHO loaned, electromagnetic shaker onto the PEM interface
plates to see if there was any interference problems. The seismic
support
tubes at LLO are 1" longer than the ones at Hanford so no shims were
required to mount the PEM plates without interfering with the v-blocks.
However there was interference with the shaker assembly, if it was
to be
shaken in the orthogonal direction from the beam tube. I fixed
this
problem by milling out the side of the shaker assembly, in lieu of
using
shims.
I was planning on assembling the LLO electromagnetic shaker assemblies
this
week, but I could not find any of the material here. I went through
my
records and had placed the orders for these but after contacting the
vendors they had never received an order. I placed the orders
this week,
verbally, and will need to obtain a PO number before the parts ship.
I shipped the Microphone power supplies to Caltech to be retrofitted.
I located the holes for the PEM stay clear zone in the LLVEA.
The holes
will not be drilled for sometime until the chamber doors are close.
I am planning on getting to the end stations today to mark the locations
there as well.
The reworked base plates for the PEM stay clear zones are complete and
were
shipped this week to Hanford.
The seismometers arrived today at the California distributors.
They will
be checked out in the next few days, so we all should be seeing them
early
next week.
-----------------------------------------
Control and Data System -- R. Bork
(WBS 1.2.2)
-------------------------------------------
Global Diagnostics System
(Daniel Sigg, John Zweizig)
Working at LHO to install new version of the DMT code, to
fix installation problems that were left over from the last time John
was
here, to test the DMT components in a high rate on-line environment
and to interface with users or potential user to spread the gospel
and
to gather feedback. Installing the DMT software required reloading
the
egcs-1.1.2 c++ compiler and GNU binary utilities, These are different
from
those used by the CDS and the installation is complicated by the fact
that
the only CDS machine which has the include files necessary for compilation
(hanford1) is not connected to the GC network and is running a different
version of the operating system than the rest of the CDS machines.
These
complications will no longer exist once the DMT code is moved to the
GDS
compute server (Sun 450 to arrive in July).
At present we are reading almost 9MB frames from the NDS. This is
saturating the ATM-OC3 network connection, resulting in the loss of
about
25% of the frames. This makes it (nearly) impossible to collect continuous
time series of >2 seconds for the time being. Again, this problem should
not occur once the GDS server is installed and connected with a higher
speed network. No other problems have been relating to the high data
rate
have been observed.
One concern is that the copying the 9MB frame seems to take about 35%
of a
(300MHz?) CPU. Since the data pusher and each monitor process must
currently copy the whole frame (FrameCPP doesn't yet allow selective
unpacking or virtual copies) this will place an unacceptable limit
on the
number of monitors that can run simultaneously on the processor.
Have started to look into how this might be alleviated. It should be
noted, however, that the 9MB/s rate is greater than the expected rate
for
a full interferometer (much of the 9MB is disconnected test points).
Also, an independent measurement of the copy speed indicates that the
frame unpacking speed is not limited either by the bus speed or
by alignment issues.
Testing of the diagnostics tests for estimating the power spectral
density and measuring the triggered time response continued.
The analysis routines from Peter F. were added to the sine response
test. The patching of the Sun sparcworks compilers (version 5.0)
seems to have solve the problems we encountered when running the
diagnostics test software under Solaris 2.7.
Suspension
====================================
- The cross connect harness for the LLO 4K COS suspension systems should
be complete by next week.
ASC
=====================================
- Testing on the quad PD amplifier is nearly complete.
- Wiring of the 2X2 cross connect harness will be started next week.
This
is the wiring harness for the LHO 2K ASC systems in the LVEA.
- All boards for the 2K one arm test have been received and are in
various
stages of fabrication and testing.
EO Shutter Controller (S. Liu)
==============================
Delivered one unit to Hanford. Working on another unit in the shop.
Document D980264 released to DCC.
Antialiasing Filter ( S. Liu)
========================
a. BNC Version - Delivered one unit to Hanford. Released document
D990146 to DCC.
b. LEMO Version - PCB on order. Released document D990147 to DCC.
LSC CDS: (D. Ouimette)
===============
The Mode Cleaner Length Control electronics and EPICS screens are all
operational at Hanford. This involved some on-site modification on
the
servo electronics to deal with a 60 Hz ground loop between rack 2X6
and
2X8. The problem was that the DACs that we use to send DC control signals
to the servo electronics is no truly differential. One side is referenced
to ground. There is no problem as long as both ends of the cable are
in the
same rack. But if they get split (as in this case) between two separate
racks you can get a ground loop. We didn't find this problem until
all of
the cabling was completed.
Timing System: (D. Ouimette)
================
We were not able to get the new GPS Clock Driver to work with the ICS
110B
ADCs at Hanford over the past two weeks. We currently have three of
the
first version drivers working at Hanford. The new board is back at
Cal Tech
until we solve the problem. I am also looking into acquiring a digital
simulator and setting up a permanent test stand at Cal Tech to better
deal
with complex digital circuits in the future.
Assisted the Detector Group (M. Fine) with the packaging and shipping of springs to the LHO attn: S. Whitcomb. Acct # 5F511
Prepared two (2) transfer orders for Excess Personal Property (SF 122) to the General Services Administration (GSA) via National Science Foundation for equipment acquired from the Commodity Future Trade Commission .
From: Sarita Moore<moore_s@ligo.caltech.edu>
Press here for ACCOUNTS PAYABLE HISTORY DATA.
From: Kris Duncan <kris@ligo.caltech.edu>
No report this week.
Biplab Bhawal
* Part of the week I was at Hanford working with Rick
Savage on PSL modelling. Also did some testing on frequency
noise simulation.
* Discussed with Sergey Klimenko about some of his questions
on E2E implentation.
* Discussed with Hiro and Matt various aspects of E2E implementation
* Teaching E2E to our two SURF students, I am generating problems
for Michelle and Sam.
problems for them.
* Had put some warning statements in mirror2 module so that Adlib
warns when someone is trying to do calculations in nonperturbative
regime.
* Working on documents.
Ed Maros
* Worked some on [unix software] path issues in E2e environment
Conrad Taylor
* benchmarked SGI STL 3.2 container classes by testing
insertion, lookup, and traversal using GNU C++ compiler
* updated some of the AdLib and ALParser source with the
appropriate ANSI C++ STL equivalents
* optimized additional methods within the AdLib library
* evaluated a matrix template library
[Kent Blackburn]
* (KB) Had several meetings with Bruce Allen and Walid Majid
to discuss software designs for
prototype functions for
the LLAL project. In my opinion,
they have a very nice
implimentation that will provide
a user-friendly, robust
library.
* (KB) Participated in a LSC teleconference to discuss LLAL
style issues that have come up
in association with the
LLAL style documentation.
* (KB) Held several meetings with software engineers to discuss
status and planned activities
for the week. The FrameAPI
is nearing completion and the
LightWeightAPI now has an
XML parser which uses autoconfig
and automake. Three commands
for getting various types of data
from the LDAS system were
outlined in a meeting which included
Bruce Sears.
* (KB) Discovered several new needs for the system configuration
of the LDAS at Hanford. Ed Maros
is making necessary changes
to the cfengine scripts to support
additional services of
email, http, ftp.
* (KB) Spoke with Patrick Brady of the LSC this week to discuss
plans for documentation tools.
Currently the LDAS is moving
away from DOC++ as it is leaving
the C++ style of commenting
in favor of the JAVA style. A
new package called "percepts"
has been identified which is being
supported and should be
able to provide the functionality
we need once C++ namespace
support is added.
[Mary Lei]
* (ML) Modified metadataAPI to accept macro arguments
coming in from test driver
simulating manager.
Handle keeping an interp
around for repeated
retrievals.
* (ML) Attended userAPI meeting on getData message format.
Changed getData for metadata
to conform to the keywords
decided at the meeting.
Also need to change
metadataAPI to a batch handling
of getData instead
of interactive (perform
sqlquery in background
and remove interp when done).
And output to ilwd
rather than text.
* (ML) Test ingestion of blob test data. Needs metadataAPI.so
changes to handle blobs.
* (ML) Downloaded openlink pre-release of Solaris 7 drivers
and request broker to run
on propus and spica.
Works ok with previous database
agent. Currently have
request broker running on
spica.
* (ML) Updated metadataAPI to ingest burstevent, directed periodic,
ringdown, statistics, source
independent ilwd data
into ldas.
* (ML) Tested a complex query provided by Xiao. Modified
timeout (udbc.ini) to accomodate
the long search time.
* (ML) Investigated threading mode for C++ objects to see
if sqlquery execution should
be done in the background
so metadataAPI can respond
faster to queries.
Currently these are queued
up if there is a long query.
[Masha Barnes]
* (MB) Finished writing autoconfig and automake files for IBM XML parser.
* (MB) Traced IBM's bug in XML parser code using ddd debugger, got a
fix for it
from IBMalphaworks discussion
group.
* (MB) Built IBM's XML parser library using autoconfig and automake
files on
LINUX and SOLARIS platforms, tested
IBM provided samples.
* (MB) Checked automake/autoconfig version of XML parser into the repository
under ldas/lib/xml4c directory
(original IBM XML parser code is moved
under ldas/lib/xml4c_old directory
in repository).
* (MB) Had a meeting with Dave, Kent, and Albert on differences and
similarities of FrameAPI and LightweightAPI.
* (MB) Met with Stuart on NFS problem.
[David Farnham]
* (DWF) continued debugging and testing the C++ portion of the Frame
API.
* (DWF) added more complete support for searches using the
getFrameAttribute and getFrameData
commands in the Frame API. The
user may now search for
an item in 3 ways: by index (e.g., the 5th
adc object. this could be
used for iterating through all adc objects),
by name (this is an exact
match), or by a regular expression.
Furthermore, there is now
support for continuing a search to find the
next element matching a
query.
* (DWF) continued working with Phil to 'put together' the C++ and TCL
portions of the Frame API.
* (DWF) met with Masha, Kent & Albert to discuss the model for
the Light-
Weight API (specifically,
how to use the components of the FrameAPI
as a model for the LightWeight
API).
[Edward Maros]
* (EFM) Worked on extending the bind of the metadataAPI to accept ILWD
data types.
[Barbara Kratochiwill]
* (BK) Completed another iteration of the Channel Configuration web
application to be turned over
to Rolf shortly. Finished testing
and made numerous small changes.
Added ability to enter comments
at top of export file. Tweaked
the server configuration. Resolved
server problems after installing
Netscape 4.61 and production release
of WebBase on my pc.
[Phil Ehrens]
* (PSE) Worked on the getData frame components with Dave Farnham
* (PSE) Met with Dave, Masha, Mary, Xhao, and Kent to discuss
Status.
* (PSE) Met with Albert, Kent, Mary, and Bruce Sears to discuss the
format of the user request
"getData".
* (PSE) Posted web-page describing the syntax of the "getData"
command's "meta macro".
* (PSE) Continued testing and development of user command macro
syntax. Started documenting
the syntax of the low level
API macro language.
[Xiao Hu]
* (XHU) worked on ilwd files
* (XHU) worked on handling blob in ilwd files
* (XHU) worked on sql statements
[Bruce Sears]
* (BS) iLog system:
- Met with Albert and Stuart to discuss additions
and changes
to the ilog system. Here
is a list of their (and other) suggestions:
* Remove annoying
"Initialize Today's Log?" form. TBD.
* Remove almost as
annoying auto "Log Initialized" entry. TBD.
* Enable linked lists
of obsoleted and updated entries which
automatically
track and notate previous entries in the lists. TBD.
* Create a simple
entry removal method for users for entries
with mistakes
in them. (This should probably only allow
deletion
of an entry by the same user within an hour (or
day?)
of the entry, so that once the entry has been around
for a
certain time, it can only be corrected via a sub-entry
or obsoletion
instead of being removed. To avoid confusion
of people
who have already seen the entry and expect it there. TBD.
* Enable the merging
of logs, e.g. the detector logs from the
Hanford
and Livingston installations. Includes entry titles
for ease
of identification of where the entry originated. TBD.
* Auto update of currently
showing pages are appended to by
another
user elsewhere. TBD.
* Enable easily placed
hyperlinks in entries. TBD.
* Provide more info
in the contents pages. TBD.
* New keyword type
(key:subkey1:subkey2) searches. TBD.
* Fix possible "reader"
user's search problem. TBD.
* Enable search for
attached files by type. TBD.
* Dump a block of
days to the printer. TBD.
* Multidimensional
menus for selecting keywords. TBD?
* Multiperson entry
signatures. TBD?
- Enabled simple pre-formatted tables to keep
their format when
placed in an entry.
- "Fixed" PC Windows Netscape bug of not being
able to read some
entry time stamps on printout
of ilog pages.
* (BS) LDAS User API:
- Met with Kent, Phil, Mary, and Albert to
discuss the format for
getData command. Resulted
in specification of the commands
getFrameData, getMetaData, and
getLightWeightData as specified
at http://www.ligo.caltech.edu/~pehrens/getData_samp.html
* (BS) LIGO Majordomo system:
- Tried to analyze problems occuring with
the system while I was
away on vacation, but failed to
pinpoint causes. Retesting the
system this week on a smaller
scale basis.
- Added ilog-users list and am hunting down
email addresses for all
involved users. This list
will be used for important ilog
use notifications.
* (EFM) Continued to modify the cfengine scripts for Hanford
Stuart Anderson [SBA]
Finished testing and put into production the daily cron jobs to
mirror LDAS software to LHO and pull back system configuration files
to both the LHO GC and Caltech for automated backup purposes.
Further research on ~1TB disk cache solutions with a possible high
performance solution found at the $100/GB print point.
Identified and isolated a severe network file system problem on the
main
LIGO caltech filesystem server (sirius) which prevents the building
of
at least one software package over NFS.
Walid Majid:
Spent most of last week and this week writing some of the foundation
(atoms) of the algorithm library. Using the foundation library
tools,
implemented the first high level component of the library to do power
spectrum estimation using Welch's method. This work was carried
out in
a joint collaboration with Bruce Allen. The code has now been
tested and
includes a suite of test functions as called for in the style guide
for
the algorithm library.
The tools developed so far have been:
create, destroy, print, copy and extract functions for the sequence
container. create, destroy, print, fill functions for timeseries
container. create, destroy, print functions for frequency series
container. These tools supports all 12 datatypes as stated in
the style
guide and a test suite is supplied for each functionality.
create several types of windows for various data types along with test
suite.
arithmatic operations on sequences of float, double, complex of
type float and complex of type double along with test suites.
signal generators to generate white gaussian noise (wgn), wgn and one
sinusoid, wgn and two sinusoids along with test suite.
functions to calculate mean, variance, skewness and kurtosis of a
sequence.
power spectrum function with test suite to calculate power spectrum
of a
timeseries using Welch's method with and without an overlap along with
test suite.
MIT:
Nothing to report
Livingston:(Tom E.)
Installed IslandDraw, two seismic analysis packages, PASSCAL and SAC
2000.
We have installed an 8 mm tape drive.
Hanford: (Christine P.)
This has been a very busy week for Sys. Admin. While trying to
troubleshoot a scsi error on rainier, the PROM on the clock board went
bad. Fortunately we have a service contract for rainier and I
was able
to get a replacment clock board installed the next working day.
The
problem occurred Friday evening and was replaced Monday afternoon.
There were some minor installation problems, but all is well now.
The
scsi problem is still a mystery and still happening intermittently.
I'm
still trying to troubleshoot it.
With the start of the Summer programs I have created 12 new user
accounts in just the last few days, one or two at a time as the students
showed up. Thanks to Suresh for getting the accounts at Caltech
setup.
I have setup an apps4 directory on rainier for installation of freeware
software applications, like gnuplot, gcc compilers, etc. It seems
that
this software is updated every other month and it would be a full time
job just trying to keep the latest version installed. This way
anyone
who needs a particular version can install it themselves. Also,
if
someone needs a particular software application installed immediately
they have a place to put it.
A path problem with the current gnuplot software was fixed. There
were
several problems with frozen email processes which were cleared up
by
rebooting the email server, apex. One of the Sun workstations
lost its
network connection, finally traced it to a crimped network cable.
I
have been helping get a list of required patches for the CDS servers.
I
ran the SUN Y2K Compliant scan software to determine patches for Y2K
on
the CDS computers.
CIT:
(Samantha)
Set up computers for Fred A. and Elizabeth W. (PC's).
Found the necessary 2000 patches and will be placing them in the pcapps
directory for users if they need them.
Researching software package to discover 2000 issues, believe that
have
Made a few modifications to Syd's computer
Fixed the cd burner again.
Brought down computer from third floor, found it didn't work and using
it to
repair another one of the PC's.
(Barbara K.)
Made changes to Amaldi web site, mostly to the Program page.
Set up the
first paper received to be web-accessible. Made some database
changes
requested by attendees.
Attended several APE presentations on new systems and their support.
Made changes to the LIGO web site, mostly to the MOU page. Prepared
a
public bulletin board page.
(Suresh)
Set up a number of LIGO accounts for SURF students at Hanford Observatory
and
at Caltech.
Working on daily incremental backup to function properly.
Added additional print queues in some machines enabling them to access
most
of the LIGO network printers.
Resolved login and booting up problems with some Sun systems this week.
Provided usual support services.
The group as a whole worked on a NT installation in order for everyone
to become
familiar with NT since we will have to support it on a few more machines.
Also,
we are taking the oppertunity to document the process and have it put
on the web
in the computer section.
Attended various meetings concerning the CIT switch over to a new accounting
system. From the information we have been able to get a number of computers
will
need to be upgraded. Details will be given out in another forum.
Setup a number of computers for the training session which we soon
found did not
meet the new h/w criteria. We are now looking at using the units as
visitor
terminals for the Amaldi conference.
Sean has been working on a number of s/w pkgs. and working on getting
the new
tape robot to work with the Amanda s/w. The Artestak s/w just arrived
and we
will be shipping it to the Observatories. It has some h/w limitations
and will
work for now but we will have to look for another pkg. to use in the
future.
The ssh pkg. for the pc's has been ordered and should ship this week.
The CD's
for each Observatory and MIT will be shipped from CIT.
Still working on the Cadence installation.
Worked out the logistics for the moving of the fiber from Bridge to
Wilson
house, in order to accommodate the construction of the new parking
garage.
Wilson House will be down this weekend but should be backup on Monday.
Working a number of network issues now that some of the equipment we
have been
waiting for has arrived.
The usual of fixing broken hardware and redoing computer setups has
taken some
extra time this week but nothing out of the ordinary.
Irene:
WE ARE NOW IN THE "DARK PERIOD."
This "Dark Period" is scheduled to continue until July 6th (we hope).
Thanks
for your help during this difficult time in getting all your trips
into me and
Vee so that we could get you ticketed and a healthy Advance for your
upcoming
trip(s) done. You all should be pretty much set through August.
I realize
there might be an exception/emergency trip and we'll have to deal with
it at
that time one way or the other.
Due to the overwhelming amount of new trips and Expense Reports, I concentrated
first on the paper work involved for new trips, then worked on Expense
Reports. I completed 14 new trips (14 Purchase Requisitions and
6 Advance
Requests) as well as all the necessary additional arrangements required
for
these trips. I have no new trips at this time. I then worked
on and completed
59 Expense Reports. This completely emptied my in-box.
They were submitted
before the cutoff and I was assured that they will be paid.
The Travel/Vacation Itinerary for the Week of June 21st, 1999, was put
off due
to a lack of time. It will be completed as soon as possible.
Attended Oracle Training from Monday morning (June 21st) thru Thursday
noon
(June 24th).
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.
Rita:
For week ending 6/23/99
Went through Oracle training most of the week, from 6/21 through 6/24.
For I Petrac searched for a missing FedEx package (containing MOU) sent
in
May; found name of person who signed for it at Penn State. Formatted
Attachments D and Z to the TAMA MOU. Thanks to L. Wood and B.
Kratochwill,
obtained an electronic list of LSC and other members; updated the list
to
capture names of those with whom we have MOUs. Obtained DCC numbers
for
several new MOUs.
For W. Tyler/M. Zydowicz arranged laser training for LIGO people.
For. W.
Althouse/F. Raab coordinated production and shipment of items for 6/22/99
presentation dinner. Helped I. Baldon copy several sets of travel
documents.
Rita Torres, LIGO Project
X8443 M/S 18-34
For additional information about this report, contact sanders@ligo.caltech.edu