sPHENIX MAPS tracker discussion

[Martin Purschke <purschke AT bnl.gov>]

All,

since I have started my long weekend off (back next Wednesday), a quick 
offline status update from me here -

1) Jakub had reminded me that Yasser and I hadn't gotten around to 
cloning the new machine you brought in. I tried this last night, but it 
will need a bit more TLC - the hardware is different from the other 
machine that is an identical twin of your others and that offered no 
resistance to being cloned like the mvtx-flXes. I could boot this in my 
network install OS, but after it's up, on touching the NVME disk I get a 
kernel panic. On it when I'm back in 1008. (This procedure needs one's 
presence in 1008 - after boot one needs to physically switch network 
cables mid-way).

2) progress on the never-ending decoder story -

Jo and I sat next to each other and went through a few things. The gold 
standard is the python decoder that offers a lot of printouts. The issue 
that was found when we had sat together before in a larger group seems 
fixed. In my debug version, I matched the printouts that the python code 
offers to be able to diff. Also, for reference, here is the file that Jo 
suggested we work with:

> Hi Martin,
>
> I checked and the following file on mvtx-flx0 should be a good one to use for 
> decoder testing:
>
> /data/runs/20230322_095715_ReadoutTest/test_00000107-0000.prdf
> It has 64 pixels being pulsed on each ALPIDE.

So here we are, first to confirm that we get all the headers alright now:

decoder.py:

> $ ddump -p 2001 -g -s  /mac_home/data/MVTX/test_00000107-0000.prdf | python3 
> /mac_home/data/MVTX/decode.py | grep 'FELIX header'
> FELIX header found: Version 1 FLXID 0 GBT_ID 3
> FELIX header found: Version 1 FLXID 0 GBT_ID 1
> FELIX header found: Version 1 FLXID 0 GBT_ID 2
> FELIX header found: Version 1 FLXID 0 GBT_ID 3
> FELIX header found: Version 1 FLXID 0 GBT_ID 1
> FELIX header found: Version 1 FLXID 0 GBT_ID 2
...

and

> $ ddump -p 2001   /mac_home/data/MVTX/test_00000107-0000.prdf | grep "FELIX 
> header"
> FELIX header found: Version 1 FLXID 0 GBT_ID 3
> FELIX header found: Version 1 FLXID 0 GBT_ID 1
> FELIX header found: Version 1 FLXID 0 GBT_ID 2
> FELIX header found: Version 1 FLXID 0 GBT_ID 3
> FELIX header found: Version 1 FLXID 0 GBT_ID 1
> FELIX header found: Version 1 FLXID 0 GBT_ID 2
...

and

> purschke@mlpvm3:~$ ddump -p 2001   /mac_home/data/MVTX > purschke@mlpvm3:~$ ddump -p 2001 
/mac_home/data/MVTX/test_00000107-0000.prdf | grep "FELIX header" > x1
> purschke@mlpvm3:~$ ddump -p 2001 -g -s  
> /mac_home/data/MVTX/test_00000107-0000.prdf | python3 
> /mac_home/data/MVTX/decode.py | grep 'FELIX header' > x2
> purschke@mlpvm3:~$ diff x1 x2
> purschke@mlpvm3:~$


Getting somewhere.

More after I'm back next week.

        Martin





On 5/25/23 06:39, Schambach, Jo via sPHENIX-MAPS-l wrote:
> Here is the indico page for today’s meeting, which includes the zoom link:
>
> https://indico.bnl.gov/event/19608/ <https://indico.bnl.gov/event/19608/>
>
> For your consideration: since the main focus of the electronics meeting 
> now is the commissioning of the detector, should we combine the 
> discussions into one meeting only per week at the Monday meeting? Or do 
> you think it is still useful to have a second weekly meeting on 
> commissioning?
>
> --
>
> Joachim Schambach
>
> Oak Ridge National Laboratory
>
> PO Box 2008
>
> Bldg. 6000, MS 6368, Rm 205-C
>
> Oak Ridge, TN 37831-6368
>
> Phone: (865) 341-0694
>
> Email: schambachjj AT ornl.gov
>
>
> _______________________________________________
> sPHENIX-MAPS-l mailing list
> sPHENIX-MAPS-l AT lists.bnl.gov
> https://lists.bnl.gov/mailman/listinfo/sphenix-maps-l


--
Martin L. Purschke, Ph.D.        ;   purschke AT bnl.gov
                                 ;   http://www.phenix.bnl.gov/~purschke
                                 ;
Brookhaven National Laboratory   ;   phone: +1-631-344-5244
Physics Department Bldg 510 C    ;   fax:   +1-631-344-3253
Upton, NY 11973-5000             ;   skype: mpurschke
-----------------------------------------------------------------------