Hey Dan, Thanks for getting back.
My first concern is being able to find a compatible hardware/computer to plug the NIC into. Are these systems commercially available? Or are most of them custom-built? I could budget around 100 W for such a computer. I don't think the power draw of the NICs themselves is concerning for us, we could manage that. Also, I am not sure if the 100 GbE yellow block would be compatible with a dual 10 GbE NIC or a 40 GbE NIC, if it does then that opens up quite a few options. Regards, Mayukh ________________________________ From: 'Dan Werthimer' via casper@lists.berkeley.edu <casper@lists.berkeley.edu> Sent: Monday, September 23, 2024 1:48 PM To: casper@lists.berkeley.edu <casper@lists.berkeley.edu> Subject: Re: [casper] 100 GbE Hardware recommendation Hi mayukh, You might consider two 10 gbe links and a dual 10 gbe nic. Or a 40 gbe nic. Are you concerned with the power consumption of the 100 gbe nic, or the consumption of the computer the nic is plugged into? How much computing power and storage do you need ? Best wishes, Dan On Mon, Sep 23, 2024, 1:18 PM Mayukh Bagchi <mayukh.bag...@queensu.ca<mailto:mayukh.bag...@queensu.ca>> wrote: Hello Casperites, I hope you all have been doing well. I have been developing an RFSoC-based backend for our Balloon-borne VLBI Experiment (BVEX) project, which will be a mobile K-band VLBI station, launching in August next year. I am using the RFSoC 4x2 to digitize and stream data for our IF stage. The CASPER community has been very helpful with setup and troubleshooting. So far, I've successfully implemented a spectrometer and a power meter. While the design for the 100 GbE data streaming is almost ready, I am having trouble selecting a compatible NAS/server-side system to directly communicate with the 100 GbE Mellanox NIC<https://www.fs.com/products/119648.html?attribute=67745&id=3746425>. The reason why it is getting tricky is the size, thermal regulation, and power consumption constraints, as this will be on a balloon platform with limited resources. Our data rates should be around ~10-12 Gbps, depending on how much we end up re-quantizing, so we may not use the full capabilities of the 100 GbE network. However, at this point, any suggestion on hardware will be useful in getting us pointed in the right direction. Feel free to share your advice on working with 100 GbE Mellanox NICs. If this seems challenging, I could probably lower our data rates and try the 10GbE yellow block Ethernet core. Thanks in advance! Regards, Mayukh __________ Mayukh Bagchi (He/Him), PhD Candidate Department of Physics, Engineering Physics, and Astronomy mayukhbagchi.com<http://mayukhbagchi.com/> | mayukh.bag...@queensu.ca<mailto:mayukh.bag...@queensu.ca> [Queen's University Logo]<https://www.queensu.ca/> -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu<mailto:casper@lists.berkeley.edu>" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu<mailto:casper+unsubscr...@lists.berkeley.edu>. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/YT4PR01MB10632111BE97CE7C079D9E886916F2%40YT4PR01MB10632.CANPRD01.PROD.OUTLOOK.COM<https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/YT4PR01MB10632111BE97CE7C079D9E886916F2%40YT4PR01MB10632.CANPRD01.PROD.OUTLOOK.COM?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu<mailto:casper+unsubscr...@lists.berkeley.edu>. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAA9jdzJmp1E%3DZknwdB4V18WypD8ak0TewhDoqe8WsTSk1i1-YA%40mail.gmail.com<https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/CAA9jdzJmp1E%3DZknwdB4V18WypD8ak0TewhDoqe8WsTSk1i1-YA%40mail.gmail.com?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/YT4PR01MB1063206055042E9DCB07FFFD2916F2%40YT4PR01MB10632.CANPRD01.PROD.OUTLOOK.COM.
