U.S. ATLAS HL-LHC Upgrade Level 2 and Deputies-NSF only Management Mailing List

[Elliot Lipeles <lipeles AT hep.upenn.edu>]

On Wed, Aug 28, 2019 at 3:34 AM Gustaaf Brooijmans <gusbroo AT nevis.columbia.edu> wrote:

Hi Elliot,

For Paul's 3rd question you write "Answer: The HTT plan relies
significantly more scientific labor largely to include students and
postdocs in the project for training purposes. Approximately 2/3rds of
the HTT firmware effort is scientific labor. The GEP plan is not to use
students and postdocs to write firmware and for them to only be engaged
in testing and simulation."
==> This only re-states Paul's observation.  It doesn't explain why it's
done this way.

The key point is "for training purposes". That is the primary reason it's done this way.

 

For question 5 on the R&D status: is this not described in the slides?

Yes, but I thought he was asking for a more detailed status. Mel just has in the slides:

"Demonstrators nearing submission:  schematics complete,  layout and routing underway." 

and focusses more on the work that lead up to that and less on exactly where things are.

 

Best,

Gustaaf


On 8/27/19 5:54 PM, Elliot Lipeles wrote:
>
> Here is are replies from me including the one on the science flowdown to
> trigger for HH to 4b that was in the LAr section.
>
> There was one tricky one (below) about exploring GPUs instead of a
> custom ASIC for HTT. Here is what I put, but I'm very uncertain whether
> we want to discuss the existence of this commodity hardware back-up plan
> group.
>
>  1.
>
>     Has there be an evaluation of using commercial hardware accelerator
>     (GPUs as one example) for track finding/fitting in the higher level
>     trigger? Why build a custom chip?
>
> Answer: This was investigated within ATLAS prior to the selection of HTT
> as a baseline. At that time, the GPU solution was significantly higher
> cost and impractical in terms of power consumption.
>
>
> EL: Should we add that “ATLAS continues investigate commodity hardware
> as backup plan, but HTT is the baseline plan.”
>
>
> Elliot
>
> On Tue, Aug 27, 2019 at 11:00 AM Gustaaf Brooijmans
> <gusbroo AT nevis.columbia.edu <mailto:gusbroo AT nevis.columbia.edu>> wrote:
>
>
>     And a number of management questions answered.  We'll need to read
>     through when everything is filled, as I added to some existing answers.
>
>     On 8/27/19 4:28 PM, Michael Tuts wrote:
>      > …and with an answer to the uncosted labor fraction (last question)…
>      >
>      > *From:* Thomas Schwarz <schwarzt AT umich.edu
>     <mailto:schwarzt AT umich.edu>>
>      > *Sent:* Tuesday, August 27, 2019 9:48 AM
>      > *To:* Hal Evans <hgevans AT indiana.edu <mailto:hgevans AT indiana.edu>>
>      > *Cc:* Michael Tuts <tuts AT pmtuts.net <mailto:tuts AT pmtuts.net>>;
>      > usatlas-hllhc-management-l AT lists.bnl.gov
>     <mailto:usatlas-hllhc-management-l AT lists.bnl.gov>;
>      > usatlas-hllhc-l2deputymgmt-nsf-l AT lists.bnl.gov
>     <mailto:usatlas-hllhc-l2deputymgmt-nsf-l AT lists.bnl.gov>; Mark Kruse
>      > <mkruse AT phy.duke.edu <mailto:mkruse AT phy.duke.edu>>
>      > *Subject:* Re: [Usatlas-hllhc-l2deputymgmt-nsf-l] [External]
>      > [Usatlas-hllhc-management-l] FW: questions
>      >
>      > There were only two questions on muons.  I added my answers on
>     top of
>      > Hal's.  attached.
>      >
>      > Tom
>      >
>      >
>      > ===================
>      >
>      > Tom Schwarz
>      >
>      > Assistant Professor
>      >
>      > Department of Physics
>      >
>      > University of Michigan
>      >
>      > Office: 734-764-8941
>      >
>      > Lab: 734-763-7805
>      >
>      > schwarzt AT umich.edu <mailto:schwarzt AT umich.edu>
>     <mailto:schwarzt AT umich.edu <mailto:schwarzt AT umich.edu>>
>      >
>      > ===================
>      >
>      > On Tue, Aug 27, 2019 at 9:33 AM Hal Evans <hgevans AT indiana.edu
>     <mailto:hgevans AT indiana.edu>
>      > <mailto:hgevans AT indiana.edu <mailto:hgevans AT indiana.edu>>> wrote:
>      >
>      >     Hi Mike,
>      >
>      >     To get the ball rolling, I've prepared draft answers for the
>      >     "Systems Engineering" questions and for a few of the "General"
>      >     questions. Comments are welcome.
>      >
>      >     Cheers  -  Hal
>      >
>      >     On 8/27/19 8:42 AM, Michael Tuts wrote:
>      >
>      >         This message was sent from a non-IU address. Please exercise
>      >         caution when clicking links or opening attachments from
>     external
>      >         sources.
>      >
>      >         Hi All,
>      >
>      >         FYI. The ‘homework’ assignments are pretty clear but we will
>      >         send out explicit ones shortly.
>      >
>      >         Cheers, PO
>      >
>      >         *From:* Tony Beasley <tbeasley AT nrao.edu
>     <mailto:tbeasley AT nrao.edu>> <mailto:tbeasley AT nrao.edu
>     <mailto:tbeasley AT nrao.edu>>
>      >         *Sent:* Monday, August 26, 2019 10:28 PM
>      >         *To:* Michael Tuts <tuts AT pmtuts.net
>     <mailto:tuts AT pmtuts.net>> <mailto:tuts AT pmtuts.net
>     <mailto:tuts AT pmtuts.net>>
>      >         *Cc:* Mark Coles (mcoles AT nsf.gov <mailto:mcoles AT nsf.gov>
>     <mailto:mcoles AT nsf.gov <mailto:mcoles AT nsf.gov>>)
>      >         <mcoles AT nsf.gov <mailto:mcoles AT nsf.gov>>
>     <mailto:mcoles AT nsf.gov <mailto:mcoles AT nsf.gov>>
>      >         *Subject:* questions
>      >
>      >         Mike, please find attached the questions arising from the
>     review
>      >         team.
>      >
>      >         We would like to review your responses (short) on Friday. If
>      >         anything requires a detailed explanation, please give a short
>      >         overview of the answer on Friday and deal with it during the
>      >         review.
>      >
>      >         If you can’t understand a question: set aside, and we’ll
>     return
>      >         to it during the review.
>      >
>      >         If possible – please email a copy of your response doc
>     early on
>      >         Friday, thanks.
>      >
>      >         regards.. Tony
>      >
>      >
>      >
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>     --
>     Gustaaf Brooijmans - Columbia University
>     @Columbia: (212) 854 4527; Nevis virtual phone: (914) 591 2804
>
>     Als sie mich holten,
>     gab es keinen mehr, der protestieren konnte.
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--
Gustaaf Brooijmans - Columbia University
@Columbia: (212) 854 4527; Nevis virtual phone: (914) 591 2804

Als sie mich holten,
gab es keinen mehr, der protestieren konnte.