Difference between revisions of "OWG meeting 29-Aug-2007"
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=Overview= | =Overview= | ||
| − | This is a special one-topic meeting whose goal is to try to understand the event size given the recent simulation results on occupancies, especially in the FDC. Note that the 2002 Hall D design document lists 4kB event size, although it is possible that the FDC itself may take 4kB (or even more). The average event size affects the design of the DAQ system in a number of ways, so this needs to be understood sooner rather than later. Fortunately the DAQ architecture is highly scalable, so accomodating higher event sizes and event rates is not a big problem. | + | This is a special one-topic meeting whose goal is to try to understand the event size given the recent simulation results on occupancies, especially in the FDC. Note that the 2002 Hall D design document lists a 4kB average event size, although it is possible that the FDC itself may take 4kB (or even more). The average event size affects the design of the DAQ system in a number of ways, so this needs to be understood sooner rather than later. Fortunately the DAQ architecture is highly scalable, so accomodating higher event sizes and event rates is not a big problem. |
The goal of this meeting is to: | The goal of this meeting is to: | ||
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# Devise a plan to learn what we need to learn | # Devise a plan to learn what we need to learn | ||
| − | We need to hear about | + | We need to hear about: |
| − | |||
| + | =Agenda= | ||
| + | * Brief intro and overview - Elliott W | ||
| + | * Channel counts, etc. - Fernando B | ||
| + | * Latest simulation results on occupancies - David L | ||
| + | * Constraints from VME and network interfaces - Dave A | ||
| + | * Recent results on extracting time from ADC data - Simon T | ||
| + | * Design of 125 MHz FADC, FPGA capabilities, etc. relevant for event size - Gerard V | ||
Revision as of 11:32, 24 August 2007
Contents
Overview
This is a special one-topic meeting whose goal is to try to understand the event size given the recent simulation results on occupancies, especially in the FDC. Note that the 2002 Hall D design document lists a 4kB average event size, although it is possible that the FDC itself may take 4kB (or even more). The average event size affects the design of the DAQ system in a number of ways, so this needs to be understood sooner rather than later. Fortunately the DAQ architecture is highly scalable, so accomodating higher event sizes and event rates is not a big problem.
The goal of this meeting is to:
- Understand what we know and do not know about event size, occupancies, etc.
- Devise a plan to learn what we need to learn
We need to hear about:
Agenda
- Brief intro and overview - Elliott W
- Channel counts, etc. - Fernando B
- Latest simulation results on occupancies - David L
- Constraints from VME and network interfaces - Dave A
- Recent results on extracting time from ADC data - Simon T
- Design of 125 MHz FADC, FPGA capabilities, etc. relevant for event size - Gerard V
Time/Location
10:00am Thu 9-Aug-2007 Cebaf Center F326
To phone in, dial xxx.
Announcments
Next Meeting
- TBD (some of us will be out of town the first week of Sep, and OECM review is second week of Sep)
