Re: [casper] Issue with Fujitsu FPD-010R008-0E + FOC-CCxxxx
rick, one more note: the SFP+ based NIC boards that myricom suggested won't work, because roach I, ibob, bee2 all use CX4 connectors, not SFP+. roach II will support SFP+ connectors, - it will also support CX4 and 10GbaseT connectors, because the 10Gbe/infiniband PHY's will be on a mezzanine board, and hopefully the casper communitity will generate several mezzanine boards with different connectors and protocols. dan On 05/20/2010 08:24 AM, Rick Raffanti wrote: Hey Dan all, I asked the Myricom guy about the power on the NIC card; his reply is attached. They don't provide active ports, and think it's a bad idea. He says buy the SFP+ NIC, which can also be used with Direct Attach copper cables, for short runs (but I don't know what that means, really). Since we are about to buy NIC and Zarlink cable, I'm now concerned they won't work together. Any thoughts? Rick Dan Werthimer wrote: hi shilpa, if you look on your NIC card, you can see if it's got the op-amp and associated circuitry to detect a cable that needs power and then send power to it. it should be right next to the CX4 connector. or you could call or email myricom and ask them if their cards supply DC power through the connector. best wishes, dan On 5/19/2010 7:39 PM, John Ford wrote: hi shilpa, the early CX4 10Gbe spec didn't supply optional power through the connector, and the first revision bee2's and ibob's we built didn't have powered connectors. but the spec changed several years ago, so i would have guessed that any modern NIC board would have powered connectors. do you have a really old NIC? No, these are pcie Myricom NIC's, some of them just purchased in September. Shilpa told me the optical converters don't work with the Fujitsu xg-700 either. Just with the Bee2. Odd. John best wishes, dan On 5/19/2010 1:19 PM, Shilpa Bollineni wrote: Hi All, I'm trying to use a optical transceiver to adapt CX4 to optical fiber: Fujitsu FPD-010R008-0E + FOC-CC. I'm using it for a short distance of 10m. I did the loop back test on BEE2 and it works fine. So I'm sure that the cable and the module is working fine. But when I have one end of the cable connected to the 10Gbe NIC card on the system I don't see the module getting any power from the NIC card. Does anyone know any specific 10Gbe NIC card that would work with these modules? Any suggestions? Thanks Shilpa Bollineni -- Dan Werthimer Space Sciences Lab and Berkeley Wireless Research Center University of Calfornia, Berkeley
Re: [casper] Issue with Fujitsu FPD-010R008-0E + FOC-CCxxxx
So I reckon I'll just buy the Chelsio board N310E-CXA- it's the same price, and specifically states Active Cable Compatible. I'll buy some 5m copper cables and some of the 15m Zarlink. Any reason that won't work? Rick Dan Werthimer wrote: rick, one more note: the SFP+ based NIC boards that myricom suggested won't work, because roach I, ibob, bee2 all use CX4 connectors, not SFP+. roach II will support SFP+ connectors, - it will also support CX4 and 10GbaseT connectors, because the 10Gbe/infiniband PHY's will be on a mezzanine board, and hopefully the casper communitity will generate several mezzanine boards with different connectors and protocols. dan On 05/20/2010 08:24 AM, Rick Raffanti wrote: Hey Dan all, I asked the Myricom guy about the power on the NIC card; his reply is attached. They don't provide active ports, and think it's a bad idea. He says buy the SFP+ NIC, which can also be used with Direct Attach copper cables, for short runs (but I don't know what that means, really). Since we are about to buy NIC and Zarlink cable, I'm now concerned they won't work together. Any thoughts? Rick Dan Werthimer wrote: hi shilpa, if you look on your NIC card, you can see if it's got the op-amp and associated circuitry to detect a cable that needs power and then send power to it. it should be right next to the CX4 connector. or you could call or email myricom and ask them if their cards supply DC power through the connector. best wishes, dan On 5/19/2010 7:39 PM, John Ford wrote: hi shilpa, the early CX4 10Gbe spec didn't supply optional power through the connector, and the first revision bee2's and ibob's we built didn't have powered connectors. but the spec changed several years ago, so i would have guessed that any modern NIC board would have powered connectors. do you have a really old NIC? No, these are pcie Myricom NIC's, some of them just purchased in September. Shilpa told me the optical converters don't work with the Fujitsu xg-700 either. Just with the Bee2. Odd. John best wishes, dan On 5/19/2010 1:19 PM, Shilpa Bollineni wrote: Hi All, I'm trying to use a optical transceiver to adapt CX4 to optical fiber: Fujitsu FPD-010R008-0E + FOC-CC. I'm using it for a short distance of 10m. I did the loop back test on BEE2 and it works fine. So I'm sure that the cable and the module is working fine. But when I have one end of the cable connected to the 10Gbe NIC card on the system I don't see the module getting any power from the NIC card. Does anyone know any specific 10Gbe NIC card that would work with these modules? Any suggestions? Thanks Shilpa Bollineni
Re: [casper] Issue with Fujitsu FPD-010R008-0E + FOC-CCxxxx
rick, sounds like a good plan. we've had good luck with chelsio NIC's connected to roach, ibob and bee2's and 10Gbe switches, although i'm not sure if we've tested this particular model. you might want to make sure that chelsio has the drivers you need to support the operating system you've chosen. dan On 05/20/2010 10:01 AM, Rick Raffanti wrote: So I reckon I'll just buy the Chelsio board N310E-CXA- it's the same price, and specifically states Active Cable Compatible. I'll buy some 5m copper cables and some of the 15m Zarlink. Any reason that won't work? Rick Dan Werthimer wrote: rick, one more note: the SFP+ based NIC boards that myricom suggested won't work, because roach I, ibob, bee2 all use CX4 connectors, not SFP+. roach II will support SFP+ connectors, - it will also support CX4 and 10GbaseT connectors, because the 10Gbe/infiniband PHY's will be on a mezzanine board, and hopefully the casper communitity will generate several mezzanine boards with different connectors and protocols. dan On 05/20/2010 08:24 AM, Rick Raffanti wrote: Hey Dan all, I asked the Myricom guy about the power on the NIC card; his reply is attached. They don't provide active ports, and think it's a bad idea. He says buy the SFP+ NIC, which can also be used with Direct Attach copper cables, for short runs (but I don't know what that means, really). Since we are about to buy NIC and Zarlink cable, I'm now concerned they won't work together. Any thoughts? Rick Dan Werthimer wrote: hi shilpa, if you look on your NIC card, you can see if it's got the op-amp and associated circuitry to detect a cable that needs power and then send power to it. it should be right next to the CX4 connector. or you could call or email myricom and ask them if their cards supply DC power through the connector. best wishes, dan On 5/19/2010 7:39 PM, John Ford wrote: hi shilpa, the early CX4 10Gbe spec didn't supply optional power through the connector, and the first revision bee2's and ibob's we built didn't have powered connectors. but the spec changed several years ago, so i would have guessed that any modern NIC board would have powered connectors. do you have a really old NIC? No, these are pcie Myricom NIC's, some of them just purchased in September. Shilpa told me the optical converters don't work with the Fujitsu xg-700 either. Just with the Bee2. Odd. John best wishes, dan On 5/19/2010 1:19 PM, Shilpa Bollineni wrote: Hi All, I'm trying to use a optical transceiver to adapt CX4 to optical fiber: Fujitsu FPD-010R008-0E + FOC-CC. I'm using it for a short distance of 10m. I did the loop back test on BEE2 and it works fine. So I'm sure that the cable and the module is working fine. But when I have one end of the cable connected to the 10Gbe NIC card on the system I don't see the module getting any power from the NIC card. Does anyone know any specific 10Gbe NIC card that would work with these modules? Any suggestions? Thanks Shilpa Bollineni -- Dan Werthimer Space Sciences Lab and Berkeley Wireless Research Center University of Calfornia, Berkeley
[casper] Arista switches
G'day all, does anyone have any experience or words of advice/warning on Arista 10GbE switches (http://www.aristanetworks.com/)?
Re: [casper] Issue with Fujitsu FPD-010R008-0E + FOC-CCxxxx
Hi Dan, On Thu, 20 May 2010, Dan Werthimer wrote: one more note: the SFP+ based NIC boards that myricom suggested won't work, because roach I, ibob, bee2 all use CX4 connectors, not SFP+. Yes, all available converters are Infiniband. roach II will support SFP+ connectors, - it will also support CX4 and 10GbaseT connectors, because the 10Gbe/infiniband PHY's will be on a mezzanine board, and hopefully the casper communitity will generate several mezzanine boards with different connectors and protocols. Not sure if mezzanine boards are a good idea since the fiber optics only need some footprint on the board, one hour of work for PCB designer. No current info about 10GbaseT, sounds more useful than CX4 but about useless even in our small telescope to bring the signals down. Some concern of RFI too, although some fiber optic converters are notorious for generating it, too. For your information: At the moment I am involved in merging the Finnish supercomputer, Australian/USA/Japanese correlators and the Indiana University distributed file system into a working combination. Surprisingly tedious even to get user accounts. Anyway the Indiana University approach seems to be very promising but so far the Lustre filesystem below seems to be kind of flaky and very dependent on operating system versions. Some competing distributed filesystem efforts are around but seem kind of less developed. Cheers, Jouko
Re: [casper] ADC documentation
hi dean, cc casper lists here are the doc's we have on the 3Gsps board: 1) schematic 2) pcb layout 3) simulink blocks for interfacing this adc to casper dsp libraries and other instruments. 4) verilog and vhdl interface code (under the simulink block). 5) various spectrometers that use this board, some use a pair of boards in interleaved mode. (example designs that might help you?) 6) adc data sheet (from national semiconductor). and data sheets of other parts on the board. 7) adc board test document (it's one of the casper memo's). if you need anything else, please let me know - i can put you in touch with the adc board designer and/or some of the guys who have built spectrometers using this board. or even better, you can email the casper list serve and pose your questions to the whole casper community. this way, your questions and answers will be archived for the community. best wishes, dan On 05/20/2010 10:09 AM, Holt, Dean A (3457) wrote: *Dan,* * * *I work at JPL and will be performing tests using an ADC1x3000-8 Casper board. I have schematics of the board, but would like to locate a datasheet or users manual. I couldn’t locate any of these items on the Caper webpage. Please email me any documentation you have on this board (ADC1x3000-8).* * * *---Dean
[casper] 64-bit toolflow computer?
We're setting up a new toolflow computer after Ubuntu stopped working. Should we be installing RHEL 64-bit install or 32-bit? The wiki mentions 64-bit in passing, but I remember there being some problems with 64-bit earlier... -- Bay Grabowski b...@umail.ucsb.edu
Re: [casper] Connections of ADC2x400-12
Thanks, but I'm just trying to find out the definition of the four sma connectors. There aren't any labels and I haven't found a schematic or pcb layout (or info in memo #34) Steve On Thu, May 20, 2010 at 5:25 PM, Dan Werthimer d...@ssl.berkeley.eduwrote: hi steve, according to casper memo #34, full scale range on the 12 bit adc board is 1.28 Vpp. (50 ohm input). there are some frequency response plots in this memo as well. best, dan On 5/20/2010 11:30 AM, Steve Maher wrote: Hi, Can someone point me to info on the inputs of a ADC2x400-12 board? Thanks, Steve
Re: [casper] 64-bit toolflow computer?
Hi Andrew, I did try Fedora 12, which didn't work either. I really wasn't happy with RHEL5 for the same reason you mention, but it was the only OS I was able to get to work with the newest tools. It also meant Xilinx would answer our questions, or at least attempt to. Mark http://www.mail-archive.com/casper@lists.berkeley.edu/msg01202.html On Thu, May 20, 2010 at 6:39 PM, Andrew Lutomirski l...@mit.edu wrote: On Thu, May 20, 2010 at 9:34 PM, John Ford jf...@nrao.edu wrote: Hi Bay, We had to move to RHEL5 (64-bit ok) to get versions above 11.3 working. I've heard that CentOS works too. And you really need 64 bit... We're in the process of setting up a Fedora 13 system, since it's annoying to have packages as old as RHEL's. Has anyone had any trouble with that? (There's also RHEL6 Beta, but I haven't gotten that to install without crashing, so I don't think it's quite ready for prime time.) --Andy John Mark On Thu, May 20, 2010 at 3:49 PM, Bay E. Grabowski b...@umail.ucsb.eduwrote: We're setting up a new toolflow computer after Ubuntu stopped working. Should we be installing RHEL 64-bit install or 32-bit? The wiki mentions 64-bit in passing, but I remember there being some problems with 64-bit earlier... -- Bay Grabowski b...@umail.ucsb.edu
