LIGO Weekly Report for the week of 12 March - 16 March 2018
Past Weekly Reports
There will be no meeting of the Executive Committee this coming Monday due to the LVC spring meeting.
LIGO Laboratory Administration
Revision of FY1923 proposal budget
- Processing of property dispositions and transfers at CIT and LHO
- Capital equipment screenings
- Managed logistics activities across the laboratory
- Updates to S&R processes
- Write-up of FRS ticket wish list for S&R
- Assisting with LHO inventory data updates to PCS
- Continued data entry for electronic filing project in DCC
- Self assessment request completion to PS
- Assisting procurement with shipment records in ICS
- 3IFO request updates
- Revision of FY19–23 proposal budget
Procurements and Subcontracts Management
- LLO-Director Mod. (Complete)
- CIT-Flanges (Complete)
- CIT-SolidWorks PDM Pro with modules (Complete)
- CIT-PDM Pro. Install and other services (Complete)
- CIT-LIGO 03 Cluster (In Progress)
- LIGO-Main Turbomolecular Pump Station & Dry Mech. Pump Bundle (In Progress)
- LIGO-Turbomolecular Carts (In Progress)
- LLO MIC (In Progress)
- MIT-LIGO Ops Support Mod. 19 (In Progress)
- LIGO General Provision Updates (In Progress)
- CA Tax Audit (In Progress)
General Business Services
- Calendar updates: LIGOMeetings, Vacation & Travel calendars
- Processing, reconciling Cardquest - Barish, Hiroto
- Processing travel for Barish
- Processing reimbursements
- Reconciling receipts for LOSC Workshop
- Working on LIGO Emergency Address roster update
- Worked on Diversity meeting minutes
- Preparing for LIGO Staff Committee meeting
- Worked with external customers to facilitate travel accommodations.
- Updated CIT and LHO travel calendar.
- Tracked status of visitor’s through the approval process.
- Answered some questions regarding LSC Activities fee.
- Researched information for upcoming Management retreat.
- Verified lodging for summer SURF students at LHO and secured additional Fellows lodging at LHO.
LIGO Laboratory Safety
Albert Lazzarini (Richard Oram, Bubba Gateley)
The safety committee held its monthly meeting.
- Investigate replacement network vulnerability scanning software.
- Looking into performance issues with log analysis system.
- Installing and starting configuration of new servers (replacing old hardware, new VM host).
- Issuing new, renewal certificates through InCommon for GC, security systems.
- Applying patches, upgrading OS releases on older servers.
- Providing patch notices to sysadmins.
LIGO Hanford Observatory (LHO) and Interferometer Operations
- C. Carrasco, B. Gateley, K. Roland, C. Soike - Facilities
- Fabricate platforms and trays around HEPIs at HAM 6.
- Replaced various hydraulic hoses on forklifts.
- Replaced carpet in Chandra's soon to be new office in the OSB Rm 135.
- Worked on BOE for budgets.
- Prepare and deliver weekly safety meeting.
- Erect scaffolding in OSB optics lab to wrap up try and complete the HVAC controls upgrade project.
- Closed BSC10 chamber at EY with Travis, Kissel and Jim. This involved 2 rounds of First Contact cleaning on ETMY and the usual gamut of SUS/SEI transfer function tests and chamber contam control steps before handing off to the door crew.
- Met with Aidan to go over full TCS/HWS LHO task list of actions needed before O3 start. Worked through prioritization and staffing plan to delegate these tasks.
- Weekly coordination of Greg G’s ongoing TCS work.
- Ran into small personnel snag which required delaying of the ETMX weld week from Mar 19th to Mar 26. Coordinated with involved staff and visitors effected. PCAL will use a day or so of the time attempting to realign the PCAL periscope.
- Started prep work for removal of ETMX Quad from BSC9.
- Worked through weekly FRS cleanup, FRS weekly meeting.
- Set jig and glued AERM, last prism.
- Worked with PSL team on documentation work as well as 3IFO inventory issues (while Matt was here last few weeks.
- Coordinated staff on vent tasks
- Shipped 2 broken BOSEMs to Stuart at LLO for further investigation
- Swapped ETMx oplev laser for a new one due to glitching as a precaution to keep the oplev alive; ETMx oplev is the alignment reference for upcoming ETM work. See LHO alog 40987. New laser is SN 197–2, old laser is SN 130–1.
Electronics, Control and Data Systems Operations
F. Clara, C. Perez, M. Pirello, Ed Merilh, G. Moreno
- Doing some work on changing configuration on our E-Stop cabling. Have cables run through conduits, identified and ready to terminate. This will require a day when no lasers are needed.
- Continued support for EY closeout we conducted a HIPOT test of ESD cables at EY. All tested up to 1kV, all passed..
- Fixed in-vac cable issue for BOPO DCPD1.
- Repaired issue with TTFSS slow output opamp, implemented proposed solution to shunt ESD from virtual ground to actual ground.
- Applied E1800064 modification to increase transimpedance gain in both CLF photodetectors.br>
- Modified SQZ common mode board to fix flawed 4kHz low pass path.
- Looking at POP Air 90 cabling trying to figure out what is going on with phase problems when working in racks.
- Continue to make progress on Access control conduits and cabling. Mid and End stations cables are run but equipment not installed yet.
Control Room Operators
OPERATOR OFF-SHIFT WORK
- Sort & take blue scrubs to laundry for cleaning.
- Start work on garb cleaning contract renewal.
- Sort, bin, and stow PSL chiller plumbing parts and fixtures in H2 Chiller Room.
- Participated in Saturday Outreach Tour.
- AERM: Lent a hand to Gerardo with handling/positioning the AERM (for prism bonding & baking). And loading a Test Mass into a shipping container.
- Squeezer/OPO: Helped balance HAM6 ISI.
- Baffle/Stray Light: Helped Baffle team install PCal Baffles at EX. Found baffle clamps.
- HAM6 In-vac accelerometer organizing & tool-buying (including a Techmart Punch-out walk-through by Eric).
- Ryan helped me switch to the new @caltech.edu email server.
- FAMIS Tasks Completed: 7481, 6191
- Re-centered EX OpLev laser.
- PSL Work - assisting in the implementation of the new 70W amplifier.
- Closeout of ETMy BSC chamber.
- Start disassembly of ETMx Quad for upcoming removal.
- Packaged fibers for LLO’s upcoming ETMy replacement.
- PCalX periscope realignment work.
- ZM1 was still showing signs of rubbing, so I replaced the flag and adjusted the height. alog#4101
- OPOS needed to swap pins on a cable bracket wire on the suspended platform. alog#41000
- VerbalAlarms: Final testing underway. Slow process because I want to see how it acts as it would on a normal day to day.
- Guardian: Trying to push the new version of the SEI configuration nodes that Jim W and I have been working one. Biggest difference is the the sensor correction and blends are now placed into two separate nodes. This takes a different management structure, but give us much more versatility. The code is also written for LLO to be able to do what they feel is best for them.
TCSY Chiller Glitches: Identified all of the electronics that have been swapped on TCSY, progress in identifying the exact electronics chain for TCS laser temperature sensors, both TCSX and TCSY share a Beckoff Module, diagnostic work continues.
PSL ECR E1700160 - GigE Cameras: Both cameras moved to new locations: (1) Downstream of the PMC and (2) Downstream of the bottom periscope mirror (no beam, alignment is ongoing).
PSL 70W: Modeled the beam from the front end, and identified the lens locations to mode match into the 70W amplifier.
- Built guardian test machine on DTS.
- Wrote code to calculate EPICS rate-of-change to support CP4 bake-out.
- Wrote bypass code for my cell phone alert system to temporarily mute alarms while changes are being made to the bake-out system (prevent alarm-text fatigue)
- Completed the raw minute trend offloading from h1tw1 SSD-RAID to h1fw1 HDD-RAID.
- Supported h1susopo and h1ecatc1plc4 SQZ code changes and additional guardian nodes (DAQ restarts, SDF updates, SNAP updates).
- Fixed h1hwinj1-h1guardian0 NFS problem which was preventing INJ-TRANS startup and impacting on Det Char.
- Attending the remote data distribution workshop
Daniel Sigg (Keita Kawabe)
No commissioning due to vent activities.
LIGO Livingston Observatory (LLO) and Interferometer Operations
After the installation of the four acoustic mode dampers (AMD) on ETMX the full interferometer locking was resumed for one week (until the end of this week) to evaluate the AMD performance as well as potential impact on the interferometer noise. The Q factor of the parametric instability modes was significantly reduced such that the ringdown time for modes at ~20 kHz became <~1s but for modes at lower frequency ~15 kHz the Q factor reduction was 10–100 apparently due to detuning of the AMD resonant frequency by ~5 kHz (this needs more modeling to understand). Never the less the current version of AMDs would extend the interferometer operation from 25 to ~140 W without active damping with ESDs. The contribution of the AMD thermal noise to DARM was evaluated: no excess noise was found in 100–200 Hz frequency range at the level of ~1% of the OMPDs cross spectrum (the averaging is not statistically limited, on the other hand the stationarity of the cross correlated noise has not been investigated at this level).
The squeezed light injection commissioning continued this week. A ~1.5 dB improvement of the shot noise down to ~100 Hz was achieved in full interferometer lock (the bns range at the time was ~95 Mpc due to the HAM6 vacuum pump) without a significant noise injection (from backscatter etc). The squeezer control loop optimization, commissioning and noise investigation are in progress. The squeezer angular control loops are not yet fully operational due to the limited range of one of the two tip-tilt actuators (ZM1) which will be addressed during the upcoming shutdown for the ETMs swap.
Scott Mccormick (Richard Oram)
Reporting for the Vacuum Team, Harry Overmier, Justin Schexnayder, Brent Hymel, Scott McCormick
- Performed installation tasks for LGV–11 shroud.
- Continued assembly and inspections on LGV11 actuator replacement. Performed multiple tests and trouble shooting of the control system. The first mock up assembly is fully functional with the new control system.
- Installed scaffolding around GV–11.
- Y-end dry air maintenance performed.
- Participated in on-site interviews.
- Attended daily operations meetings.
- Clean and Bake activities on going.
- Updated FRS shipping and receiving tickets.
- On going procurement activities in process for vacuum related tasks.
- Updated FAMIS tasks associated with vacuum tasks.
Janeen Romie (Richard Oram)
Detector Engineering weekly summary for Stuart Aston, Matt Heintze, Adam Mullavey & Arnaud Pele
We are in commissioning mode. This week we have participated in operations specialist candidate interviews.
Finalized analysis for HEPI HAM-ISI resonance.
Continued end-y BRS installation. Measured the transfer function of the BRS by driving the piezoelectric feet. We had to reopen the vacuum chamber in order to add 0.9g of mass to lower the distance between the center of mass and center of rotation. After pumping down, the resonance frequency was measured to be around 3.3mHz. We wrapped the chamber with foam for additional thermal insulation. We are now collecting data to check on the tilt spectrum.
Continuing work on the BSC-ISI model in preparation for the integration of the BRS in the control system.
Ongoing investigations into the ZM1 pitch-to-yaw coupling attempting to determine if the fault resides with the electronics chain or in-chamber, further testing is scheduled for the next Tuesday maintenance period, see alog 38183.
Taking and analyzing charge measurements for both ETMs. Noting that BSC4 was recently open for vent work, but following the subsequent pump down and opening of GVs, the charge on ETMX has remained near zero, we continue to monitor should the excessive charge return, see alog 38182.
Flip the signs of HTTS output filters and damping loop gains, to comply with the recently updated sign convention. Further implications were that the signs of alignment biases, as well as ISC locking filter gains, needed to be flipped too, see alog 38170.
Monitoring of Beamspliter OpLev, which is pending replacement of the laser, see alog 38146.
Completing testing of another batch of AOSEMs in the Optics-Lab on the dedicated x2isc0 test-stand and Automated Test Equipment. A batch of 8 AOSEMs have been bagged and remain at LLO to support vent work, see alog 38104
Working with LLO, LHO and SYS staff on P-cal baffle prep work for vent next week.
Continuing documentation effort for PSL and IO parts not provisioned for LIGO-India.
Working with AEI/LZH staff to obtain further drawings for the HPO–70W amplifier.
Control Room Operators
Gary Traylor (Richard Oram)
Gary Traylor, Mike Fyffe, Doug Lormand, Joe Hanson, Danny Sellers, Tom Evans, William Parker
- Site safety, security and Commissioning support with daily work schedule
Assigned FAMIS work orders
Completed assigned FAMIS work orders
Conducted on site Operations Specialist interviews
Supported fiber welding practice
Created posters for outside of PSL
Troubleshoot air-bake oven issues
Took photos of NPRO laser for use in upgrading
Fiber welding lab setup
Fiber welding practice
Computing and Electronics (CDS, etc.)
- Upgraded three workstations in the corner and end station electronics rooms to SL7
- Patched and rebooted cr9 workstation near HAM6
- Patched and rebooted non-active half of auto-failover fileservers
- Backed up network switch configurations
- Rotated raw trend files on secondary trend-writer
- With Matt Cowart, Satya Mohapatra (MIT), identified and fixed issue with some CDS users losing their LLO CDS group membership.
- Added strain bands strip chart from wall-display to the CDS website
Alyssa Bramley (on leave)
- Went to beam-tube enclosure for field measurement of beam tube temperature to compare with the new non-contact thermocouple.
Carl Adams, Michael Laxen
- Squeezed Light install: Whitening Binary Controls power up, Cable making
- Beam Rotation Sensor install: Install 2nd +24V Digital (Beckhoff) power strip at the Y-end. Cable making
Mid-station PEM install:
- Received PEM Mid station AA chassis (unpacking and ICS)
- Determined that pre-install into (new) dedicated racks in the EE Lab would be best
- PZT ALS driver X end power cable swap
- Timing Comparator ECRs continued
- SLED Driver Trouble-shooting
- Parts research and ordering for ISC
- Assist with Troubleshooting of ZM1 coupling issues
Education and Outreach
- Exhibited at a Family Math and Science night.
- Conducted tours for visitors from the QCMC conference. Facilitated by Gabriela Gonzalez, Joseph Giaime, Brian O’Reilly, Tien Huynh-Dinh, Kathy Holt, and William Katzman.
- Conducted 3 school field trips. Facilitated by Tien Huynh-Dinh, William Katzman & Kathy Holt.
- Conducted a public tour. Facilitated by Terra Hardwick.
- Scheduled summer groups & sent out field trip evaluations.
- Prepared for upcoming Science Saturday.
- Exhibited at LASM’s “Engineering Day” event.
- Facilitated one job shadow. Facilitators included Marie Kasprzack, Arnaud Pele, and Janeen Romie.
- Continued to pursue design for an in-chamber electrometer. [Rich Abbott, Calum Torrie, Eddie Sanchez, Norna Robertson]
- Assembled and shipped 4 chevron baffles to LHO & LLO (2 each) [Stephen Appert, Alena Anayeva, Bob Taylor, Norna Robertson]
- Defined positional requirement for end station chamber relative to the vertex for LIGO-India in T1800103 [Dennis Coyne]
- Continuing to gather information to create/revise documentation regarding equipment that the LIGO-India project must procure (i.e. not provided by LIGO Lab) (Calum Torrie, Dennis Coyne, et. al.)
- A+ proposal work (all under separate Caltech funding) [many staff members, led by Mike Zucker]
- Revising operations renewal proposal BOEs and scope based on NSF feedback [Dennis Coyne, Calum Torrie, Rolf Bork, Rich Abbott]
- Completed optical contamination testing for EPO-TEK 302–3M; adhesive approved for use with the AMDs; E1800020 [Bob Taylor, Dennis Coyne]
- Participated in a Next Generation Data Delivery Workshop [Jamie Rollins, Jonathan Hanks, Patrick Brockill, John Zweizig, Rolf Bork, Stuart Anderson, Ed Maros, Jonah Kanner, Peter Couvares, Philippe Grassia, Dennis Coyne]
Mechanics, Optics & Vacuum
- Took data on prototype of revised design of E-field meter (EFM) suspension with Calum, see T1800063-v2.
- Worked on organising and gathering input for GWIC 3rd generation R&D documentation.
- A+ work: read though proposal and gave comments.
- Continued checking info and DCC links for suspension items not being supplied to LIGO-India.
- Helped Stephen with assembly of a chevron baffle for LHO.
Squeezer engineering: A first round of gasket change has been performed on the VBO needed to bake the spare parts, but it was unfortunately not sufficient to fix the leak. We’ll disassemble and try to inspect the knife edges on Monday. Continuing to produce spare components in the meantime.
- Continued working with Rich A. and Calum T. on Electric field Meter. Finalized drawing details, prepared SOW, and submitted RFQs to various shops.
- Prepared various step files of the PCAL Periscope to help in the construction of a new Zemax model of the PCAl optical path.
- Designed and detailed new cable bracket for a 15D connector that will be used in the EFM.
- Working on integrating the new EFM SUS, rebalancing BSC ISI, and updating top level system layouts.
Control and Data Systems
- The design of the in-air portion of the Electrometer support circuitry has been completed by Ben.
- Quotes coming in for construction of the internal wiring to the IO chassis upgrade
- Zach has shifted to some needed modification to the chassis power regulator boards that we have in inventory.
- Todd has shipped the PEM AA units to both observatories, plus the 120 AA boards that were recently completed by Zach. Todd is now working on the implementation of a 3 headed cable for in-vacuum installation of the Electrometer. He is using left-over parts from the aLIGO cable build to save money.
- Luis is working on a laptop based program for doing common-mode trim of the internal digital potentiometers associated with the electrometer trim circuitry.
Vacuum System Sustainability
Jon Feicht (Michael Zucker)
GV–11 repair: Motion system tested on ISI stand with actual hardware. UHV cleaning underway, final assembly will occur at x-end cleanroom. Note GV–11 currently closed.
GV-Shroud: Shroud 1 at LLO, being installed on GV–11.
Ion Pump Baffle: 3 baffles will ship to sites this week, 4th unit next week. All have been cleaned, assembled and are ready to install.
Cryo-regen heater: Cryo is hot, ~ 80 C, regenerating. Fixing minor heat leaks. Still in “shake down” mode with new heating system.
Large and Aux turbopumps: Bids received for both main and aux pumps, expect award for Aux pumps this week, main pumps by end of month.
MIC corrosion. Bids received, selection committee has met, bid award anticipated next week.
Data Analysis and Astrophysics LabWide Activities
- Complete the review of Pcal for precision calibration.
- SURF admission is almost complete.
- Starting to work with my SURF students on project proposals.
- More CBC open boxes on C02-calibration, noise canceled strain data from some O2 chunks.
- LOSC prep work for O1 16 kHz frames and O2 bulk data. Work is being done by Kent and Agata.
- Inform DAC that O1 16 kHz data frames will be remade to exclude non-observation time, for public release. The debate continues.
- More discussions about details of CBC O2 event catalog paper and database.
- Come up to speed on CBC Rates multicomponent FGMC review.
- Continued to work with Agata Trovato on GWOSC development
- Tested a number of code changes to support recent changes in the segment database
- Tested prototype code for generating 16K sample/sec bulk data releases
- Worked with Agata to propose name changes to GWOSC frames and channel names
- Provided Max Razzano some insight on Django settings.py file and aspects of security
- Requested GWOSC specific O2 veto-definer files from Laura Nuttall and tested these
- Read several collaboration papers
- Attended LVC working group meetings
Work on thesis preparation.
- Worked on the CBC Rates review.
- Gave an outreach talk.
- Gave a talk on GW170817 and the Rate of Binary Neutron Star Mergers at
the INT-JINA Symposium on GW170917 at UW in Seattle:
Advanced Distributed Data Analysis R&D
- Continued to work on 16K sample/sec GWOSC data products to supplement the current 4K
LIGO Analysis and Open Data
Kent Blackburn (Jonah Kanner)
- Updating all the bulk data product scripts with help from Agata Trovato (from Virgo) to
support Virgo data in future GWOSC releases.
- Updating all bulk data product scripts to support 4K and 16K samples/sec strain data
LDAS Software Systems
- Studied core dump in Python interface to frameCPP and came up with a workaround while efforts continue to fix the underlying issue.
- Worked on preparing 0.15.3 release.
- Worked on testing MacPorts Portfile for current release of software
LDAS System Administration
hp 5940–3 installation into rack 5.3
- currently not secured by ears due to slightly less than 1U width where ears connect. Downtime, when moving 10G connections from 5412R, on dcs-admin and von-admin should help.
- simply double move in rack 4.2 with Ed’s help - rail kit issues. Ordering a new pair, system is on line but sitting at the bottom of the rack.
New Try and Buy C6400/C6420 installed and cabled.
- rack elevation guide updated, labeling mostly complete
GPU and skyline nodes kickstarted with new drives
- new Juan provided sl7-gpu/skylake-zfs-[raidz] needed, failed drives RMA’d
- Misc supply orders and tracking on existing POs
- Worked with facilities to scope out work needed for rack 4.5 rewiring
Work rearchiving T10KC -> T10KD continues at CIT and LLO. Another 10
tapes will be done at CIT by tomorrow (just running the last of the md5
checks) leaving 133 to go. 31 tapes have been done at LLO since the
beginning of Feb, with 591 to go.
Finished rsync of gracedb.processor account to oldacct1, have started
writing it to tape and given Juan the goahead to change the LDAP entry
of the account.
Copied some of /home2 to /home8 using samfsdump -U.
Decommissioned 2 SataBoy units.
Opened SR #3–17008877461 with Oracle re: showqueue -v dumps core a lot.
Applied POD software licenses to the 6510 switches in Annenberg leaving both of them fully licensed.
Checked that there’s no way to move 6510 port licenses between switches.
Moved the SATAbeast from the Qlogic SAN to the Brocade SAN and switched
ldas-cit to mount /backup via QFS rather than NFS.
Had Michael Thomas figure out why I couldn’t log in at LLO any more (I’d been removed from some group).
Got LLO’s samhome1 archiving again.
Moved O2 hoft_C02_clean files around so that they were in GPS-truncated
directories with 5 digits and then made symlinks from their previous
locations (in 4 digit directores).
Found out that one of 6510–2’s IBMFlash connections was running at 4Gb,
had to set the config to 8Gb–AUTO wasn’t working.
Managed CIT cleaning tapes (pull old, put in new).
- Tried further debugging of OSG test jobs.
- Followed up on gaps in the data after framewriter downtime on March
13, at LHO.
Replaced failed Supermicro PSU
Continued iSCSI testing with a SL7 target. Installed dual-port 10GbE iSCSI NIC in the new E48 unit. Installed dual-port 10GbE NIC in sun-spare. Comparing performance of ipmp vs. link aggregation on the iSCSI initiator.
Fiber and copper cable cleanup in the DCS racks
Backed up network switch configurations
- Working on the provisioning script changes (KAGRA user provisioning)
- Clearing rarely accessed large files from dcc-lho.ligo.org since it’s low in space
- Working on updating the database for default group access for new documents
- Bring back the Advanced Search in the public DCC site.
- Working with a Caltech undergrad on a DCC project
- Changed Amber Strunk’s name in the system (without having a new enrollment record)
- Worked on validating non-expired Kerberos credentials
- Add a new group in the LSC roster
- Work on migrating SQLite Bugzilla data to MySQL
- Much work this week doing research on the PDM PRO upgrade, getting quotes to purchase hardware, plus working with our VAR to get to get more specifics on certain SQL functionalities to get a better view on how this is to get rolled out.
- Worked on migration server installed new ssd hard drives configured them as RAID 0 to pickup a 4TB data storage for the migration to take place. Updating Vaultdata from network and test SSD's I/O's on this current configuration.
- Loaded a new Engineering workstation for one of our Engineers, plus migraded his data over, and getting SolidWorks loaded plus other software configured and copied over.
- Loaded a visitors Engineering workstation with SolidWorks and Zemax for an upcoming Engineer who us coming to work on campus with us for a few weeks.
- Maintenance on the main PDM Server.
- Added more users to our GoodSync server and also troubleshooted some minor issues that occurred when a few users were trying to sync up.
- Ran updates on Linux / NTSRV's I maintain.
- Some work on spam filters.
- Other misc. User support.
- GWADW web support
- Work on a new responsive page template
- Minor tweaks to ligonews.blogspot.com
- GWIC website updates, other ongoing web maintenance
- Worked quite a bit on getting paperwork together for the PDM Pro upgrade purchase. The PO has been placed.
Working on configuration possibilities for the PDM Pro support boxes.
Time spent working on paperwork for different orders.
Worked on budget updates for both FY18 and the FY19-FY23 plans. Also, worked on support documentation for others working on similar issues.
Received the new engineering workstation and turned it over to Mike for its build.
Ordered a few support items.
- This was a week of looking for and supplying converter cables for different people. Mostly power cables for different devices.
- Attended a few sessions at the SCALEX conference.
- Assembled the h/w of a couple of support servers. OS installed on one unit and the second unit is just about ready for its OS installation.
- Assisted a number of people in installing and setting up TeamSpeak on their computers.
Also, some minor work with Zoom. We have more people starting to use the application.
- Helped with a number of different meeting setups and tests. Also, logistics work for upcoming LVC meeting.
Some minor logistics assistance to a couple of groups on campus for some meetings they are having.
- Minor trouble-shooting of video connections on a couple of different monitor systems.
- Patches on server and client boxes.
- Regular user assistance locally. Some minor assistance in configuration updates and cert request generation.
- Modifications to the spam appliance rule sets.
Multiple service table updates.
- Setting up demo CoManage system for CDS account provisioning.
- Setting up router for vault/remote seismometer access.
- Access control network layout updates w/ Richard.
- Puppet policy cleanup and module upgrades, tagmail configuration (monitoring SSH changes).
- Moving offices and GC equipment between buildings.
- More server operating system upgrades (or upgrade by replacement of server).
- Assembling yearly staff laptop and related equipment replacement order.
- Assembling server order - virtualization cluster replacement.
- Planning replacement/upgrade of CAD drawing vault system for observatory.
- User mail migration to CIT-provided system.
- Cleaning up older mail accounts (service accounts, old aliases).
- Monthly FY18 budget review w/ business group.
- FY19–23 budget planning with Stuart (GC), Randy (security).
- Weekly patches checked/applied to servers.
- Security server maintenance, alerting/incident follow-up.
- Other misc. user support and daily sysadmin tasks.
- Weekly patch cycle
- Continued network configuration to provide operators the ability to enable or disable wireless during observation run
- Attempted an upgrade of windows from version 7 to 10. The laptop only makes it to 2% and errors, investigating
- Assisted S. McCormick and a contractor on debugging errors in GV11 control software. The errors were fixed with two new revisions of the code
- Installed RGA software on a new PC and began configuring for a replacement of a laptop
- Printed posters for SEC
- Minor spam filter modifications
- Attended LIAM meeting
- Attended GC meeting
- Misc user requests
Data Computing System (DCS)
Data Analysis Optimization
- continued investigating recent excessive use of the explore.test computing accounting tag on the LIGO Data Grid.
- continued discussing O2 (and planned O3) dedicated computing resources for compact binary coalescence searches and parameter estimation at AEI-Hannover with AEI staff and Satya M. (MIT) to ensure accurate accounting of those LIGO computing resources not managed and accounted for by HTCondor.
- continued debugged unresolved issues launching the PyCBC compact binary coalescence search pipeline at Caltech for production O2 analysis on the Open Science Grid.
- attended regular LSC Executive Committee, Join Run Planning Committee (JRPC), Data Analysis Council (DAC), and computing (CompSoft and DASWG) meetings, as well a number of internal and ad-hoc computing meetings with LSC scientists.
- performed LSC Computing and Software Committee chairperson duties (agenda preparation, chairing calls, coordinating work).
- with Patrick B. (UW-Milwaukee), continued planning for a LSC computing face-to-face meeting this summer to assess future LSC computing needs and plan directions.
- discussed current and future LIGO XSEDE allocations with Josh W. (CIT)
- worked to ensure the latest “cleaned” O2 data is available on the Open Science Grid for LIGO data analysis.
- met with optimization team staff to discuss status and plans of ongoing work.
- Debugging OSG workflow from caltech (data issues). Workflow running successfully.
- Continued debugging GPU workflow and verified no memory issues after bugfix last week. Now investigating building a bundled executable to run GPU jobs via OSG.
Data Analysis Optimization Operations supported
- narrowed down why 1+1 fault tolerant PS behavior was temporarily not working on remote benchmarking system - faulty PS.
- Stress test power draw remote benchmarking system with just one PS plugged in to verify throttling down, with nodes fully loaded, works ok, rather than shuts down system.
- O3 compute RFQ technical justification
- vacation March 15,16