On 10/20/2017 07:25 PM, Richard Mcallister via USRP-users wrote:
Hi all,
I'm currently using 4 X310's with LFTXs to transmit. The flowgraph
hasn't changed from last semester when I made it, but its attached.
When I run it with more than one USRP, it will eventually crash and
freeze. UHD will output a single U (underrun) and then continuously
print L (late sample?). With 4 USRPs, this will happen almost immediately.
I've tried running it on a different computer after system monitor
showed that (roughly) for each USRP being used, one of the 16 cores
would go to around 100% while the others stayed low. I also tried
changing the Ethernet cable, with no success. No success. I've also
tried using ethtool to add more TX/RX descriptors, and I've raised the
sysctl rmem/wmem buffers as UHD indicates. Does anyone else have any
good suggestions on what to try?
Thanks,
Rich McAllister
_______________________________________________
USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
What version of UHD?
You're using a 1GiGe interface to your X310s?
_______________________________________________
USRP-users mailing list
USRP-users@lists.ettus.com
http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
