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NaNet is a modular design of a family of FPGA-based PCIe Network Interface Cards specialized for low-latency real-time operations. NaNet features a Network Interface module that implements RDMA-style communications both with the host (CPU) and the GPU accelerators memories (GPUDirect P2P/RDMA) relying on the services of a high performance PCIe Gen3 x8 core. NaNet I/O Interface is highly flexible and...
The main goal of the NA62 experiment is to measure the branching ratio of the K+ ?? ??+?????? decay, collecting O(100) events in two years of data taking. Efficient online selection of interesting events and loss-less readout at high rate will be key issues for such experiment. An integrated trigger and data acquisition system has been designed, where the processing of timing information from the...
We present the design of a common trigger and DAQ system for the high energy Physics experiment NA62. The first level of trigger runs online as usual in such kind of experiments, but here is designed as a segment of the DAQ chain, instead of an additional independent system. FPGAs are used to evaluate fast trigger conditions, entirely on the digitized information from read-out electronics. In this...
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