sPHENIX MAPS tracker discussion

[Ming Liu <ming AT bnl.gov>]

FYI,
Readout discussion this Friday afternoon 2PM/BNL for tracking system: MVTX + 
INTT + TPC 

Cheers,
Ming 

-- 
Ming Xiong Liu
P-25, MS H846                     TEL: 505-667-7125 
Physics Division                            631-344-7821(BNL)
LANL                                               630-840-5708(FNAL)
Los Alamos, NM 87545      FAX:  505-665-7020
 
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    On 7/27/20, 9:42 AM, "John Haggerty" <haggerty AT bnl.gov> wrote:

        Ming, Rachid, Itaru, Takao, John K., Martin, Chris, Sasha, and Jan,

        I talked with Jin about the discussion we want to have about 
streaming 
        readout for the sPHENIX tracking systems.  We have a block of time on 
        Friday afternoon:

        > https://indico.bnl.gov/event/9042/

        I think this will be an organizational meeting where we discuss the 
        ideas and their ramifications, and then send people off with homework 
to 
        assess the feasibility.

        As the representative of the sPHENIX project, my goal is to enable 
the 
        possibility of streaming the readout, if it proves feasible, but not 
at 
        the expense of what we said we would do in sPHENIX starting in 2023.  
I 
        don't actually think it should be that hard to do, but we should 
        reconsider the data rates and volumes at potential bottleneck points 
in 
        the readout, consult the digital designers about the feasibility, and 
        consider the offline computing issues.  We may find that some small 
        adjustments in our design might be desirable (for example, more 
        segmentation in the TPC readout, or higher speed network links from 
some 
        of the servers), and it would be easier to do them now than wait 
until 
        later, but I imagine there may be things that we don't want to expend 
        time or money on now, and leave for the future.

        This will be open to everyone, but I think we need all your insights 
        into this problem.  Thanks, and I hope we can talk on Friday.

        -- 
        John Haggerty
        email: haggerty AT bnl.gov
        cell: 631 741 3358