Software and Computing

Software and Computing Meeting

2017-06-07 12:00
2017-06-07 13:00
America/New York
Wednesday, 7 June 2017
1-189, SRN, at 16:00 (GMT), duration : 01:00
TimeTalkPresenter
12:00Data production update ( 00:15 ) 0 filesLidia Didenko (BNL)
12:15Test production request ( 00:10 ) 1 fileAll (BNL)
12:25AOB ( 00:20 ) 0 filesAll (All)

OCS inventory agent upgrade and encryption notes (2.0.5 to 2.3)

Encryption is enabled with the following line in the /etc/ocsinventory/ocsinventory-agent.cfg (and of course the crt file has to be present!):

Disabling Online Linux Pool users

Steps used to disable a user in the Online Linux Pool:


(will use "exileduser" as the username for examples)

in SKM, toggle the user to disabled

Globus gridftp server with multiple interfaces

Notes for myself, setting up gridftp servers with multiple NICs

Software and Computing Meeting

2017-04-12 12:00
2017-04-12 13:00
America/New York
Wednesday, 12 April 2017
1-189, SRN, at 16:00 (GMT), duration : 01:00
TimeTalkPresenter
12:00HLT recent activities ( 00:20 ) 1 fileH. Ke (BNL)
12:20VF study in d+Au ( 00:20 ) 1 fileX. Dong (LBNL)
12:40Misalignment table issues ( 00:15 ) 0 filesJ. Webb (BNL)
12:55AOB ( 00:05 ) 0 filesAll (All)

dean performance issues - RHEL 7, XFS, RAID and IO schedulers

Background

A new RHEL 7 installation was performed on the former backup online web server (aka dean3) in mid-September 2016.

20161026

This meeting was about a few reminders but is mostly focused on CHEP 2016 lesson learn from the team who attended.

starp communication with BNL systems external to starp

This is a roughhewn list of communication between starp and other networks internal to BNL.  Initially, most of it is pulled from the *limited* sFlow sampling available on some starp network swit

Compare cpu per event for varios version of gcc compiler for 2013 pp510 W sample

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Software and Computing Meeting

2016-08-03 12:00
2016-08-03 13:00
America/New York
Wednesday, 3 August 2016
1-189, SRN, at 16:00 (GMT), duration : 01:00
TimeTalkPresenter
12:00Run 16 AuAu200 TOF calibration status ( 00:20 ) 1 fileD. Brandenburg (Rice)
12:20BeamLine calibration + general Run 16 calibration status ( 00:20 ) 1 fileG. Van Buren (BNL)
12:40SSO/Shibboleth for STAR ( 00:20 ) 1 fileD. Arkhipkin (BNL)

Software and Computing Meeting

2016-06-15 12:00
2016-06-15 13:00
America/New York
Wednesday, 15 June 2016
1-189, SRN, at 16:00 (GMT), duration : 01:00
 
TimeTalkPresenter
12:00News from the front ( 00:10 ) 1 fileL. Yi (Yale)
12:10HFT Calibrations Status ( 00:20 ) 1 fileX. Dong (LBNL)
12:30Production Status ( 00:10 ) 0 filesL. Didenko (BNL)
12:40AOB ( 00:20 ) 0 files

Software and Computing Meeting

2016-06-08 12:00
2016-06-08 13:00
America/New York
Wednesday, 8 June 2016
1-189, SRN, at 16:00 (GMT), duration : 01:00
TimeTalkPresenter
12:00News from the front ( 00:10 ) 1 fileL. Yi (Yale)
12:10Offline software summary ( 00:15 ) 0 filesJ. Webb (BNL)
12:25Progress with Dubna Grid based production ( 00:15 ) 2 filesL. Hajdu (BNL)
12:40Calibration status ( 00:15 ) 0 filesG. Van Buren
12:55AOB ( 00:20 ) 0 filesAll (All)

MIRA: Fake IOC Development

Minutes from the meeting ( 2016-05-16 )

Attendees: Jerome, Tonko, Dmitry A.

Software and Computing Meeting

2016-04-13 12:00
2016-04-13 13:00
America/New York
Wednesday, 13 April 2016
1-189, SRN, at 16:00 (GMT), duration : 01:00
TimeTalkPresenter
12:00News from the front ( 00:15 ) 1 fileO. Eyser (BNL)
12:15Sti/StiCA evaluation ( 00:35 ) 0 filesD. Gunarathne / S. Fazio (Temple / BNL)
12:55AOB ( 00:05 ) 0 filesAll (All)

file systems with on-the-fly compression, part 2

Some perfomance results...

A sampling of trigger files was copied from the trgscratch machine to sl7beta (17GB gzipped with compression (1703 files) and 41GB non-gzipped (1454 files)):<

Software and Computing Meeting

2016-02-17 12:00
2016-02-17 13:00
America/New York
Wednesday, 17 February 2016
1-189, SRN, at 17:00 (GMT), duration : 01:00
TimeTalkPresenter
12:00News from the front ( 00:15 ) 0 filesD. Tlutsy (Rice)
12:15Calibration updates ( 00:20 ) 1 fileG.V. Buren (BNL)
12:35HFT hit matching in p+p Run 15 ( 00:20 ) 1 fileH. Qiu (LBNL)
12:55AOB ( 00:05 ) 0 filesAll (All)

Software and Computing Meeting

2015-12-23 12:00
2015-12-23 13:00
America/New York
Wednesday, 23 December 2015
1-189, SRN, at 17:00 (GMT), duration : 01:00
TimeTalkPresenter
12:00Adding support for misalignment into AgML ( 00:20 ) 2 filesJ. Webb (BNL)
12:20StiCA performance evaluation ( 00:20 ) 1 fileH. Ke (BNL)
12:40AOB ( 00:20 ) 0 filesAll (All)

file systems with on-the-fly compression

Looking into filesystems for Linux that support on-the-fly, transparent compression.  Reducing the space used for a given set of data/files is naturally of interest - it directly means less raw s

Software and Computing Meeting

2015-10-14 12:00
2015-10-14 13:00
America/New York
Wednesday, 14 October 2015
1-189, SRN, at 16:00 (GMT), duration : 01:00
TimeTalkPresenter
12:00Status update from the HLT ( 00:20 ) 1 fileH. Ke (BNL)
12:20HFT (hit) efficiency studies & progress on SST ( 00:20 ) 2 filesJ. Webb (BNL)
12:40Production readiness for Run 15 ( 00:10 ) 0 filesJ. Lauret (BNL)
12:50AOB ( 00:10 ) 0 filesAll (All)

PAM notes, particularly blocking users from logging in

First notes, to be expanded later: