Hardware Platform Considerations R. Halsall, K. Manolopoulos, C. Shepherd-Themistocleous Rutherford Appleton Laboratory
DUNE Hardware Requirements Minimum hardware requirements for a FPGA platform • – Be able to fit at least 1 APA onto a PCIe board – Ten 10Gbps links per APA – At least two NVMe drives per APA – At least 32GByte of RAM per APA ( better with 48GByte ) Currently looks like we can fit one APA onto a ZU19. • Should we look into the possibility of using commercially available FPGA • platforms? Acknowledgement: used info provided by D. Cussans regarding boards that could be used while waiting for custom boards Kostas Manolopoulos (RAL) 2
Fidus Sidewinder Features: • Xilinx Zynq US+ XCZU19EG-2 – 2 M.2 interfaces to support onboard SSDs – Connectors to access off-board NVMe SSDs – Two 16GB DDR4* PC4-2400 memory modules – Two QSFP cages – PCIe x8 Gen3/4 Expansion Interface – Fidus Sidewinder has almost enough fibres ( 2xQSFP ). • – Fidus would charge about US$80k in order to modify their design to have three QSFP and easy interface to 2 x NVMe drives ( via U.2 sockets ) Kostas Manolopoulos (RAL) TMTT 3
Bittware XUP-P3R PCIe FPGA Board Features: • Can be fitted with Xilinx Virtex UltraScale+ VU7P/VU9P/VU11P – Up to two PCIe x16 interfaces – Four QSFP28 cages for 1x 400GbE, 4x 100GbE, – 4x 40GbE, 16x 25GbE, or 16x 10GbE 4 DIMM sites, each supporting: – • Up to 128 GBytes DDR4 x72 with ECC • Up to 576 Mbits dual QDR-II+ x18 (2 independent 288 Mbit banks) Much more logic than a ZU19. • Already has enough input links for 1 APA & enough RAM. • Could be fitted with QSFP-DD optical transceivers • Price is ~US 8k per board for VU9P. • Bristol is ordering one (might get one at RAL as well) – Would need a transition board to couple two U.2 cables for NVMe • Kostas Manolopoulos (RAL) 4
Other considerations • It should be clear that whatever choice we make, most likely will not be the final solution. • New generations cards will be available soon with much more potential and within the same price range. Kostas Manolopoulos (RAL) TMTT 5
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