sPHENIX is a new detector at RHIC.

["Huang, Jin" <jhuang AT bnl.gov>]

 

 

Congratulations to Cesar da Silva and Haiwang Yu as recipients of the inaugural RHIC/AGS Users' Executive Committee Merit Awards

News article on our Engineer Daniel Cacace: https://www.energy.gov/articles/meet-daniel-cacace-designer-subsystems-sphenix-detector

 

 

Collaboration news - Gunther Roland, Dave Morrison

 

·       Successful CD-1/3A review!

o   Expecting official notification noonish (July?)

·       Summer collaboration meeting last week.

o   Next meeting @ Tallahassee (University of Florida), date TBD

·       IB meeting

o   New institution presentations: Xiaomei LI (CIAE) and Astrid Morreale, vote shortly.

o   Preparing for rotation/renewal of TG convener positions and for spokesperson election

·       PAC meeting

o   Presentations by Dave/Christine

o   Well received. Encourage the finding of resources to include the MVTX, which is essential for HF. Encouraged that sPHENIX could serve as basis for EIC. Comments on recovering EMCal scope

·       Conferences

o   Annual User’s meeting this week, nice talks by Darren, Songkyo, Tony

o   HP18 abstract in preparation: https://paper.dropbox.com/doc/Hard-Probes-2018-Abstracts-rEFF6StIbaq490z05lVgm

·       Computing review next week (see last talk today)

·       MVTX review

o   BNL management (coordinated with DOE) remains to go ahead with stave and RU purchase in fall.

o   Possible start of sPHENIX stave production in Oct ’18

o   “Mini”-review foreseen for July 19^th

o   Procurement readiness review in September (?)

 

 

Project News - Ed O’Brien

 

·       DOE and Upper BNL Management have both expressed how pleased they were at the outcome of the sPHENIX CD-1/3A review. CD-1/3A approval memo in summer expected

·       Coming months

o   Beam Test of TPC prototype at FNAL                                                                                             Jun

o   Start of EMCal full sector block (pre)production at UIUC                                                           Jun

o   Order of ~1500 HCal (20% of production) Scintillating Tile as preproduction test                       Jun/Jul

o   Arrival of first HCal steel sector from the vendor                                                                        Aug/Sep

o   ESAAB review and subsequent CD-1/3A approval memo from DOE                                   Jul/Aug

o   Order of all SiPMs following CD-3A approval                                                                               Jul/Aug

o   Begin set up of HCal production/assembly factory at BNL (B912)                               Aug/Sep

·       New budget situation made Contingency available start 2020. Possibility to buy back scope if contingency not used at later stages

·       The committee recommended that we receive authorization to buy 100% of the scintillation fibers and tungsten powder to reduce risk in the event of a delayed CD3 approval.

·       Bring WBS 2.x (Infrastructure & Facility Upgrade) and 3.x (MVTX&INTT) to the level of maturity of 1.x (MIE)

·       Recommendations Post Approval has a few very useful items

o   Prior to CD-2, aggressively pursue options (possibly with in-kind contributions from new Collaborators) to restore the pseudorapidity coverage of the EMCal. Extending message to their funding agencies

 

Discussion:

Grazyna Odyniec/Glenn: schedule merge will not be ready for mini-review for MVTX

Ed: suggested charge change to focus mini-review for MVTX on stave purchase. Not sure whether the charge can be changed

Gunther: as many MVTX member is not available, plan to schedule a more focused discussion on MVTX when hopefully the scope of the review being better defined.  

 

 

Computing review - Chris Pinkenburg

 

Charged on reviewing what kinds of resource sPHENIX need. Helps us clean up picture on our side too.

 

Are the resources required to transmit and store the data adequately understood?

Our data rates and total volumes are adequately understood.

They are based on projections of our present run plan, and, where possible, informed by experience from the PHENIX experiment.

The data rates and volumes do not present a technical challenge today and will become less expensive by 2022.

 

Are the resources required to process the data to a form suitable for physics analyses adequately understood?

We do have a good understanding of the required resources. At the current time

the cpu needs exceed the available resources by about an order of magnitude. But building

on already existing proof of principles we can reasonably expect to be able to speed up

the reconstruction significantly. The needs for disk storage to buffer the incoming data

for two weeks to leave sufficient time for initial calibrations tasks are in the 20PB range.

 

Is the plan for developing software processes and framework adequately understood?

sPHENIX has a fully developed framework and a conditions DB. The framework is flexible and highly modular and fulfills the needs of sPHENIX. The available manpower is focused on the actual reconstruction software. Software development emphasizes the use of existing 3^rd party software (e.g. genfit, rave) rather than starting from scratch.

Special attention is paid to code verification and checking by using state of the art code analysis tools. Proposed code changes use pull requests followed by an informal code review, depth depending on the nature of the change. Setting up a continuous integration server (Jenkins) is in beta testing.

 

Total resources (rhic+atlas) in racf

•       70000 cores

•       60 PB distributed storage

•       130PB on 60000 tapes

•       57 Tb/s internal network

•       200Gb/s External network connectivity

 

Discussion

Glenn: conclusion likely be used as input to future RCF reviews

Stefan: in PHENIX experience, calibration prevents prompt reconstruction

Gunther: expect later years later years of sPHENIX can perform prompt reconstruction following LHC computing model

Jin/Glenn: require commitment of preparation and manpower prior to data taking to realize prompt calibration

 

 

 

______________________________

 

Jin HUANG

 

Associate Physicist

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________

 

 

> -----Original Message-----

> From: sPHENIX-l [mailto:sphenix-l-bounces AT lists.bnl.gov] On Behalf Of David

> Morrison

> Sent: Friday, June 15, 2018 12:01 PM

> To: Morrison, David <morrison AT bnl.gov>; sphenix-l AT lists.bnl.gov

> Subject: Re: [Sphenix-l] 50th sPHENIX General Meeting today, Friday, June 15

> at noon ET

>

> Hi all,

>

> Just a reminder that the general meeting is getting underway! Talk to you

> soon.

>

> Regards,

> Dave

>

> On 6/15/18 6:14 AM, David Morrison wrote:

> > Dear collaborators,

> >

> > The 50th sPHENIX general meeting will be held today, June 15 at noon

> > ET, recognizing that there is a conflict with the final hour of the

> > RHIC/AGS Users' meeting,  At BNL, we'll meet in Rm. 2-219. The agenda is

> here:

> > https://indico.bnl.gov/event/4738/ and the bluejeans connection info

> > is below.  See you there!

> >

> > Regards,

> > Dave and Gunther

> >

> > To join the Meeting:

> > https://bluejeans.com/913283451

> >

> > To join via phone :

> > 1)  Dial:

> >     +1.408.740.7256

> >     +1.888.240.2560

> >     +1.408.317.9253

> >     (see all numbers - http://bluejeans.com/numbers?ll=en)

> > 2)  Enter Conference ID : 913283451

> >

>

> --

> David Morrison  Brookhaven National Laboratory  phone: 631-344-5840

>                 Physics Department, Bldg 510 C    fax: 631-344-3253

>                           Upton, NY 11973-5000  email: dave AT bnl.gov

>

> _______________________________________________

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