Pictures | |
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HLT Farm - SDX1, 2nd floor, rows 3 and 2. On the right: HLT Processing Units; on the left: Central File Servers |
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Closer look to part of the HLT Farm | CLICK HERE TO DOWNLOAD THE LARGE PICTURE |
SFO Farm | CLICK HERE TO DOWNLOAD THE LARGE PICTURE |
Closer look to the SFO Farm | CLICK HERE TO DOWNLOAD THE LARGE PICTURE |
Network | CLICK HERE TO DOWNLOAD THE LARGE PICTURE |
P1 Gateway | CLICK HERE TO DOWNLOAD THE LARGE PICTURE |
ACR machines | CLICK HERE TO DOWNLOAD THE LARGE PICTURE |
Overview of TDAQ system | |
Design | CLICK HERE TO DOWNLOAD THE PDF |
2010 and 2011 | CLICK HERE TO DOWNLOAD THE PDF |
2012 | CLICK HERE TO DOWNLOAD THE PDF |
Typical rates and bandwidth in 2012 | Run 214494, started on Tue Nov 13, 11:54 UTC. Peak Stable Lumi: 7.08x1033 cm-2 s-1 Peak Stable Delivered Physics Luminosity: 152.3 pb-1 ATLAS Ready Recorded: 146.8 pb-1 [96.3%] |
Level-1 Output Rate | CLICK HERE TO DOWNLOAD THE PLOT ![]() |
Level-2 Output Rate | CLICK HERE TO DOWNLOAD THE PLOT ![]() |
Event Filter Output Rate | CLICK HERE TO DOWNLOAD THE PLOT ![]() |
Level-2 Output Bandwidth | CLICK HERE TO DOWNLOAD THE PLOT ![]() |
Event Filter Output Bandwidth | CLICK HERE TO DOWNLOAD THE PLOT ![]() |
SFO Recorded Physics Events Rate | CLICK HERE TO DOWNLOAD THE PLOT ![]() |
Event Size in 2012 | |
Event Size at the Event Builder Run 214494 (see details above) |
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Event Size at the SFO Run 208811, started on Sat Aug 18, 07:29 UTC. Peak Stable Lumi: 7.42x1033 cm-2 s-1 Peak <Events>/BX: 35.22 Stable Delivered Physics Luminosity: 222.2 pb-1 ATLAS Ready Recorded: 215.4 pb-1 [96.5%] |
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Event Size at the SFO for the three main physics streams during four 2012 runs, as a function of pile-up. Run 204668, started on Thu Jun 07, 20:26 UTC Peak Stable Lumi: 6.72x1033 cm-2 s-1 Peak <Events>/BX: 31.66 Stable Delivered Physics Luminosity: 161.5 ATLAS Ready Recorded: 155.6: [96.4%] Run 203876, started on Thu May 24, 18:13 UTC Peak Stable Lumi: 6.52x1033 cm-2 s-1 Peak <Events>/BX: 30.69 Stable Delivered Physics Luminosity: 164.1 ATLAS Ready Recorded: 158.6: [96.6%] Run 203602, started on Fri May 18, 11:39 UTC Peak Stable Lumi: 5.66x1033 cm-2 s-1 Peak <Events>/BX: 27.58 Stable Delivered Physics Luminosity: 170.8 ATLAS Ready Recorded: 164.5: [96.3%] Run 203195, started on Thu May 10, 17:28 UTC Peak Stable Lumi: 3.71x1033 cm-2 s-1 Peak <Events>/BX: 18.08 Stable Delivered Physics Luminosity: 45.57 ATLAS Ready Recorded: 44.16 [96.9%] |
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ROS Performance | |
Rate limits on ROS and their improvement with CPU update, as measured for 2 ROLs per RoI and 2 Gbit Ethernet links in 2011 | CLICK HERE TO DOWNLOAD THE PDF |
Performance of ROBIN with PCI interface | CLICK HERE TO DOWNLOAD THE PDF |
Performance of ROBIN with PCIe interface | CLICK HERE TO DOWNLOAD THE PDF |
ROS PC Performance standard ROS PC, optimized, data is requested from 3 ROBs per RoI, results for four fragment sizes |
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ROS PC Performance standard ROS PC, optimized, data is requested from 3 ROBs per RoI, results for fragment size of 100 words and for different L1 accept rates |
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ROS PC Performance standard ROS PC, optimized, data is requested from 3 ROBs per RoI, results for for a fragment size of 400 words and for different number of ROBs per RoI request |
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ROS PC Performance ROS PC with new motherboard and CPU and using all 4 ports of a Silicom PEG-4 Ethernet interface card, for a fragment size of 400 words |
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HLT Farm Performance | |
Level-2 processing time Run 214777, started on Mon Nov 19, 00:15 UTC. Peak Stable Lumi: 7.42x1033 cm-2 s-1 cm-2 s-1 Peak Stable Delivered Physics Luminosity: 142.6 pb-1 ATLAS Ready Recorded: 134.1 pb-1 [93.0%] |
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Event Filter processing time Run 214777, started on Mon Nov 19, 00:15 UTC. Peak Stable Lumi: 7.42x1033 cm-2 s-1 cm-2 s-1 Peak Stable Delivered Physics Luminosity: 142.6 pb-1 ATLAS Ready Recorded: 134.1 pb-1 [93.0%] |
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Distribution of processing time per event in the Event Filter farm in July 2012. Each color corresponds to a family of processors black: older CPU model; red: older CPU model, SMP on; green: newer CPU model. The average processing time for each family is shown in the box. |
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Distribution of processing time per event in the Event Filter farm in early 2011 | CLICK HERE TO DOWNLOAD THE PLOT ![]() |
CPU Usage in the Event Filter farm, as a function of the luminosity in 2011. Each point corresponds to the peak of the CPU usage averaged over the entire EF farm, for a specific run; the peak corresponds in time to the highest luminosity at beginning of the fill. The points are indicatively grouped per different trigger menus. |
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Evolution of the average EF processing time as a function of the pile-up during run 209980 for different CPU technologies. | CLICK HERE TO DOWNLOAD THE LARGE PICTURE ![]() |
Evolution of the average L2 processing time as a function of the pile-up during run 209980 for different CPU technologies. | CLICK HERE TO DOWNLOAD THE LARGE PICTURE ![]() |
Data Taking Efficiency | More |
2010 Stable beams: 1068.3 hours Running and not busy: 1030.8 hours - 96.5% Running with RfP flag: 993.2 hours - 93% |
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2011 Stable beams: 1561.3 hours Running and not busy: 1482.9 hours - 95% Running with RfP flag: 1457.9 hours - 93.4% |
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2012 Stable beams: 1812.6 hours Running and not busy: 1710.9 hours - 94.4% Running with RfP flag: 1686.7 hours - 93.1% |
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2012 - Inefficiency sources (minutes) | CLICK HERE TO DOWNLOAD THE LARGE PICTURE ![]() |
I | Attachment | History | Action | Size | Date | Who | Comment |
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DataNetworkRun2.pdf | r1 | manage | 4807.2 K | 2015-12-16 - 17:51 | MikelEukeniPozoAstigarraga | Run 2 data acquisition network |