sPHENIX EMCal discussion

[Martin Purschke <purschke AT bnl.gov>]

Dear all,

John, Dan and I set up the readout of the EmCal rack 1E3 today. Among 
the bigger news and changes are the fact that we run from the actual 
seb00.sphenix.bnl.gov machine in its final (minus the inevitable tweaks) 
configuration - a first!

With that comes the ability to write the data directly to the 
bufferboxes, and from there we can just "cp" to the RCF/SDCC.

In the phnxrc account we set up a new "operations" directory

> [phnxrc@seb00 ~]$ ls -l operations/
> total 5
> drwxr-xr-x 2 phnxrc sphenix3 6 Mar 27 19:00 emcal
> drwxr-xr-x 2 phnxrc sphenix3 8 Mar 27 18:06 HCal

and an ad-hoc "standard" where (for now) ${HOSTNAME}_setup.sh points to 
the right setup script for a given machine -

> [phnxrc@seb00 emcal]$ ls -l
> total 7
> -rw-r--r-- 1 phnxrc sphenix3 1433 Mar 27 18:30 libconfuse_emcal_1E3.txt
> -rw-r--r-- 1 phnxrc sphenix3 2074 Mar 27 19:00 rcdaq_setup_emcal_1E3.sh
> lrwxrwxrwx 1 phnxrc sphenix3   24 Mar 27 19:43 seb00_setup.sh -> 
> rcdaq_setup_emcal_1E3.sh

The filerules have been adjusted to go to the bufferboxes' 
"commissioning" area:

>   -- defined Run Types:
>           cosmics - /bbox/commissioning/emcal/cosmics/cosmics-%08d-%04d.prdf
>              junk - /bbox/commissioning/emcal/junk/junk-%08d-%04d.prdf
>               led - /bbox/commissioning/emcal/led/led-%08d-%04d.prdf
>         led_tower - 
> /bbox/commissioning/emcal/led_tower_by_tower_hcal/led_tower.prdf
>          pedestal - /bbox/commissioning/emcal/pedestal/pedestal-%08d-%04d.prdf
>            pulser - /bbox/commissioning/emcal/pulser/pulser-%08d-%04d.prdf

After some flailing, and after all was working alright, we took two good 
runs tonight to look at,

> [phnxrc@seb00 emcal]$ ls -l /bbox/commissioning/emcal/junk/
> total 1095484
> -rwxr--r-- 1 phnxrc sphenix3   78118912 Mar 27 19:40 junk-00004286-0000.prdf
> -rwxr--r-- 1 phnxrc sphenix3 1043652608 Mar 27 19:42 junk-00004287-0000.prdf

with slow, 1Hz forced-accepts in 4286 and then faster, like 500Hz, 
triggers in 4287.

After Dan had found one not-properly connected fiber, all packets check 
in ok:

> [phnxrc@seb00 emcal]$ dlist -e 3  
> /bbox/commissioning/emcal/junk/junk-00004287-0000.prdf
> Packet   6009  5981  0 (Unformatted)    93 (IDDIGITIZER_31S)
> Packet   6010  5981  0 (Unformatted)    93 (IDDIGITIZER_31S)
> Packet   6011  5981  0 (Unformatted)    93 (IDDIGITIZER_31S)
> Packet   6012  5981  0 (Unformatted)    93 (IDDIGITIZER_31S)
> Packet   6013  5981  0 (Unformatted)    93 (IDDIGITIZER_31S)
> Packet   6014  5981  0 (Unformatted)    93 (IDDIGITIZER_31S)
> Packet   6015  5981  0 (Unformatted)    93 (IDDIGITIZER_31S)
> Packet   6016  5981  0 (Unformatted)    93 (IDDIGITIZER_31S)

and they look like proper pedestal events.

Just to exercise this, I transferred the data to the SDCC file system, 
where they appear under /sphenix/lustre01/sphnxpro/commissioning/ :

> purschke@rcas2067 ~ $ ls -l 
> /sphenix/lustre01/sphnxpro/commissioning/emcal/junk/
> total 1095488
> -rwxr--r-- 1 sphnxpro sphenix   78118912 Mar 27 19:40 junk-00004286-0000.prdf
> -rwxr--r-- 1 sphnxpro sphenix 1043652608 Mar 27 19:42 junk-00004287-0000.prdf

(this is exactly what we'll be doing with the real data once we run with 
beam.) So, a good day's work.

Just so that our HCal friends who are subscribed to this list don't feel 
left out - we are also able to read out the HCal (both E+W 
simultaneously) with the respective SEB machines. More about that in a 
separate mail later or tomorrow morning.

Best,

        Martin + John + Dan.

--
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
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