Münster 2017 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 27: Poster
HK 27.74: Poster
Dienstag, 28. März 2017, 16:45–18:45, F Foyer
Test of a PCIe based readout option for PANDA — •Simon Reiter1, Heiko Engel2, Sören Lange1, and Wolfgang Kühn1 — 1Justus-Liebig-Universität Giessen, Germany — 2Goethe-Universtität Frankfurt, Germany
The future PANDA detector will achieve an event rate at about 20 MHz resulting in a high data load of up to 200 GB/s. The data acquisition system will be based on a triggerless readout concept with intelligent sampling ADCs, leading to the requirement of large data bandwidth. The data reduction will be guaranteed on the first level by an array of FPGAs running a full online reconstruction followed by a CPU/GPU cluster on the second level. This is foreseen to achieve a reduction factor of more than 1000.
The C-RORC (Common Readout Receiver Card), originally developed for ALICE (A. Borga et al., JINST 10 (2015) 02, C02022), is an expansion card which can establish the connection between the first and the second level.
A test system with 12 links (SFP, 1 Gbps) sending in parallel was tested, writing the data to memory with a PCIe 2.0 interface (8 lanes). A bandwidth of 1149.6 MB/s was reached in a long-term test of 48 hours without errors. Detailed test results will be presented.
*This work is supported by BMBF(05P15R6FPA).