RE: [casper] Myricom 10G-PCIE-8A-C

2018-03-06 Thread Michael D'Cruze
...@gmail.com] Sent: 06 March 2018 18:50 To: casper@lists.berkeley.edu Subject: Re: [casper] Myricom 10G-PCIE-8A-C Hi Dan I placed a 64-bit counter directly at the input of 10G block, and then adjusted the accumulation length. The behavior was the same, it only works correctly

Re: [casper] Myricom 10G-PCIE-8A-C

2018-03-06 Thread Dan Werthimer
hi rolando, what is your packet rate? and how many bytes in each packet? i suggest you use tcpdump or wireshark or some other packet sniffer program to examine your packets, and see how fast they are coming in (look at the time stamps of each packet), and whether the data look correct... dan

Re: [casper] Myricom 10G-PCIE-8A-C

2018-03-05 Thread Rolando Paz
Hi Dan After doing what you advised me, I managed to observe the following: When I adjust the accumulation length to 2048 everything works correctly, then I adjust the accumulation length to 1024 and everything continues to work fine, then I adjust the accumulation length to 512 and the PC stops

Re: [casper] Myricom 10G-PCIE-8A-C

2018-03-05 Thread Dan Werthimer
hi rolando, it's possible that the problem you see is because your sample rate has changed or the valon's power output is too low for the adc. the valon display can sometimes mislead. i suggest you power cycle the valon, and re-program it with the settings you want (don't use the flash to boot

Re: [casper] Myricom 10G-PCIE-8A-C

2018-03-05 Thread Dan Werthimer
hi rolando, are you dropping packets? have you used tcpdump or other packet sniffer code (eg: gulp...), to investigating what's going on when you change the integration time? is the number of packets/second correct for the integration time you set? if not, perhaps you accidently changed the