[casper] KATADC boards

Are there any spare/surplus KATADC boards out there in Casperland? I have one non-functional board that I need to replace. Thanks, Dale Gary -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu"

Re: [casper] Help with ROACH2 uboot issue

pdate the netboot variable to add the nolock and then saveenv, correct? And I'll have to do that procedure on all 8 ROACH2s? Regards, Dale On Wed, Aug 24, 2022 at 4:32 PM David Harold Edward MacMahon < dav...@berkeley.edu> wrote: > Hi, Dale, > > On Aug 24, 2022, at 1:1

Re: [casper] Help with ROACH2 uboot issue

"cat /proc/filesystems". > > If so then try specifying the filesystem type explicity, using a "-t > nfs". If I recall correctly the mount executable is busybox, so might > not be as featureful as the mount we normally encounter. > > regards > > marc

Re: [casper] Help with ROACH2 uboot issue

ggest something else to test local mounting in soloboot? Regards, Dale On Wed, Aug 24, 2022 at 3:05 AM Marc wrote: > On Wed, Aug 24, 2022 at 12:57 AM Gary, Dale E > wrote: > > > > Hi Dave, > > > > There is only one interface on the server. I am not actually sure ho

Re: [casper] Help with ROACH2 uboot issue

e a helpful(?) error message instead. > > Dave > > On Aug 23, 2022, at 5:57 PM, Gary, Dale E wrote: > > Hi Dave, > > There is only one interface on the server. I am not actually sure how it > works with the private network, but it is not a dedicated NIC. I was using > dnsmas

Re: [casper] Help with ROACH2 uboot issue

e to be using IP address 192.168.24.1 (or some other address on the > 192.168.24.0/24 subnet). This is something that would get changed in the > DHCP config files. Are you using dnsmasq for DHCP/TFTP/DNS for the ROACH2s? > > Dave > > > On Aug 23, 2022, at 5:08 PM, Gary, Dale

Re: [casper] Help with ROACH2 uboot issue

n doubt, you > can always reboot to “undo” any unsaved changes. > > Good luck, > Dave > > On Aug 23, 2022, at 3:19 PM, Gary, Dale E wrote: > > Hi Dave, > > I think you are right that I found the place to do it, but I don't know > what syntax to use to set

Re: [casper] Help with ROACH2 uboot issue

FS server’s > network interface. I think setting it to larger than 1500 won’t work for > the ROACH2s. > > I’m curious to know what the solution ends up being! > > Cheers, > Dave > > On Aug 23, 2022, at 12:08 PM, Gary, Dale E wrote: > > Hi All, > > I upgra

Re: [casper] Help with ROACH2 uboot issue

ested - so the "bootargs" variable would > contain references other ${variables}. Be careful to escape them > propery, and only use saveenv once you are sure they do what you want. > > All the best and regards > > marc > > > > On Tue, Aug 23, 2022 at 7:08 PM

[casper] Help with ROACH2 uboot issue

Hi All, I upgraded my remote boot server to a new machine running ubuntu 20.04, and although I tried to set everything up the same for remote booting the ROACH2s, the process fails as shown in the attached file because the root file system could not be mounted. I found one suggestion on the web t

Re: [casper] Weird python problem

It is always good practice to Google the error. Others have met with it, e.g. https://stackoverflow.com/questions/12805044/python-console-importerror-pyunicodeucs4-fromstring . This might help (suggests there is a .pyc file compiled under another version of Python), or check other links on a Googl

Re: [casper] seeking high accuracy GPS disciplined time/frequency standards ?

Hi Dan, We use a PRS10 Rubidium clock from Stanford Research Systems ( https://www.thinksrs.com/products/prs10.html). This takes a 1 pps from a GPS clock, and produces a highly accurate (and stable) 10 MHz signal, which we use to lock all of our time and frequency sources. You can read about the

Re: [casper] Bringing up a new ROACH2

YMMV. At SKA, > we've mostly moved on to SKARAB. However, there's quite a bit of > organisational memory, so if you battle, just shout. > > Regards, > James > > > On Sun, Feb 3, 2019 at 8:51 PM Gary, Dale E. wrote: > >> Hi All, >> >> We need to br

[casper] Bringing up a new ROACH2

Hi All, We need to bring up a new ROACH2 board from scratch for the purpose of introducing students to the tools based on the Casper 2018 tutorials. Although I did all of this 3-4 years ago at our observatory, I need to refresh my memory, and I would like to take advantage of any new developments.

[casper] CASPER design question

Hi Casperites, I received an inquiry from Neal Hurlburt, from Lockheed Martin (Palo Alto), who wants to look into the possibility of using CASPER hardware and tools to design a prototype system for interferometry of optical signals. So far the specifications are quite fluid (see message below)--t

Re: [casper] 10 GBE Network Slowdown with Ubuntu 18.04

t that the NIC is connected to? > > FWIW, the Hashpipe program includes a script (hashpipe_topology.sh) that > will summarize the NUMA topology of a system vis a vis network cards and/or > GPUs. > > > https://github.com/david-macmahon/hashpipe/blob/master/src/hashpipe_topology.s

Re: [casper] 10 GBE Network Slowdown with Ubuntu 18.04

gt; > You may wish also to get rid of systemd, which takes cycles for a > questionable purpose, but the issue is hazardous. Anyhow we took this > option. > > systemd gets worse at each OS release. > > > Jean Borsenberger > > On 22/09/18 01:56 PM, Gary, Dale E. wrote: &

[casper] 10 GBE Network Slowdown with Ubuntu 18.04

Hi All, We are running a multi-core (32-core) system at Owens Valley that has a dual-port Myricom 10GBe NIC. We ran the system very successfully under Ubuntu 12.04 for more than 1 year, but after upgrading to Ubuntu 18.04 (generic) we are now experiencing reliability problems, despite the tuning

Re: [casper] KAT-7 KatADC on ROACH2

Hi Tom, I am resending my reply of about a month ago to another, similar question. Regards, Dale On Wed, Mar 7, 2018 at 8:14 AM, Gary, Dale E. wrote: > Hi Yan, > > This sounds like the problem we had until Matt Dexter and Dave MacMahon > determined that some KatADC registers ne

Re: [casper] ROACH1 est_brd_clk()

Hi Tom, What digitizer are these using? We have had issues with the KATADC on ROACH2, which turns out to need some register initializations in order to function properly, and the symptom is a bad est_brd_clk() result. Regards, Dale On Wed, Apr 18, 2018 at 1:48 PM, Tom Kuiper wrote: > What sit

Re: [casper] KAT-7 KatADC on ROACH2

Hi Yan, This sounds like the problem we had until Matt Dexter and Dave MacMahon determined that some KatADC registers need to be set for correct ADC operation. Below is the python code we use to set them: addr = [0x, 0x0001, 0x0002, 0x0003, 0x0009, 0x000A, 0x000B, 0x000E, 0x000F]

Re: [casper] Application of SMA correlator design to a larger array

king at porting SWARM to newer platforms, primarily to > expand bandwidth in the SMA’s case, rather than number of antennas. We > have also studied application of CASPER-like methods to ALMA, which of > course has far more than 8 antennas, but those studies were on paper, we > have yet t

Re: [casper] Application of SMA correlator design to a larger array

as far more than 8 antennas, but those studies were on paper, we > have yet to reduce to real design. Taking SWARM as-is (8 antennas 2 GHz > 16384 channels on ROACH2) is fairly simple. Expanding SWARM to 16 antennas > and/or porting to a new FPGA platform will be a significant project—the

[casper] Application of SMA correlator design to a larger array

Dear Jonathan (and the rest of the CASPER list, in case anyone has additional comments), I am looking into a new project that would require processing around 2 GHz of bandwidth on of-order 10 (but more than 8) dual-polarization antennas. Our science case calls for at least 4096 frequency channels.

Re: [casper] VEGAS PFB / FFT

Hi Richard, I will let someone else say how the PFB block is actually implemented, but the correct method is as you have described, so that each sample in a 4-tap PFB will be used 4 times. I do not see how it could work otherwise, and indeed the whole point of the PFB is to give the effect of a w

Re: [casper] Colombian Radio Interferometer

Hi Juan Camilo, This is certainly doable with ROACH hardware. Before embarking on it, though, you should do some tests of the radio-frequency interference (RFI) environment there. Your target frequency range is one of the toughest in terms of RFI, so you may be frustrated in your goal even if ev

[casper] Problem with reading ROACH-2 sensors

Hi All, We have 8 identical (I hope) ROACH-2 boards. We have been using 4 of them for a long time, and I just brought two more online, but one of them is behaving differently than the others. One problem is that the sensor list is different. If I run the katcp routine to get the sensor list re

[casper] KatADC est_brd_clk

Hi All, We are bringing multiple ROACH2 boards online, each equipped with two KatADC boards. To my surprise, 3 of our 8 ROACH2s show a 401 MHz FPGA clock rate, as returned from the Python KATCP est_brd_clk() function, when supplying an 800 MHz clock to the ADCs. The others show the correct value

Re: [casper] adc5g block run at 2500MHz

> i think NRAO's DiBAS design (led by John Ford) uses > a Roach2 board to sample a pair of ADC's at 5 Gsps, > and one of the DiBAS modes does stokes spectroscopy. > and Jack Hickish's AMI correlator also samples a > pair of 5 Gsps ADC's using Roach2. > > best w

Re: [casper] adc5g block run at 2500MHz

Hi All, Could someone summarize this discussion for me re: the case I am interested in, which is as follows? I have a need for a dual-pol spectrometer covering an RF of at least 1-18 GHz (0.5-18 GHz is better). From the discussion, it sounds like one option is to use the 1x5GSPs board at 1:1 (8-

Re: [casper] Questions of getting Xilinx 14.5 license

I just updated our old license, which had ended in Dec. 2012, by entering a request on XUP (Xilinx University Program), and they fulfilled the request in about 1 day. However, the license they gave me was for UEF-VIVADO-SYSTEM-25, which I hope includes ISE, but I fear it may not. Nimish, did you

Re: [casper] Matlab components for toolflow

Hi Andrew, We are desperate to complete a design by this week in order to support our software development team over the weekend, but we are stuck right now due to this issue. If you do manage to find a work-around and can provide a block update, please let us know. Many Thanks, Dale On Thu, S

[casper] Configuring a DELL 8024F 10gbe SFP+ switch

Hi All, I would like to configure a DELL 8024F switch to get its out-of-band IP address via DHCP, and just forward packets on the 10GBe side between ROACH boards and a Myricom dual-port board on a linux PC (two subnets: 192.168.1.x and 192.168.2.x). Does anyone have a succinct set of instructions

[casper] SFP+ Cables

Hi All, I need to order the cables for connecting our ROACH2 SFP+ mezzanine cards to a 10GBE swtich. We need only 1 m cables. I find some rather cheap "passive copper" cables (e.g. http://www.cablesondemand.com/pcategory/91/category/SFP%2B+CBL/URvars/Catalog/Library/InfoManage/SFP+_CABLES_%28DIR

[casper] Netbooting ROACH and ROACH2 from same server

Hi All, I would like to get a ROACH1 to netboot on the same network as our ROACH2s, but I am not sure how to specify two different directories from which to serve uImages to different machines. Is it possible? I am using the Ubuntu tftp server, whose config file (/etc/xinetd.d/tftp) specifies th

[casper] Testing KatADC board

Hi All, Is there anyone out there who is not on vacation and can give me some pointers about running the ratty2 design for ROACH2? I cloned the ratty2 github and ran setup.py. I successfully programmed the board "manually", but I am not able to figure out how to configure or run the script r2_spe

Re: [casper] Problem receiving ROACH2 packets

> In particular the kernel may answer arp requests for one interface on the > other interface This was exactly what we were seeing. The tap_start command was not working, so I manually set the ARP table, but with tap_start still running the kernel would set both IPs (on the same subnet) to the sa

[casper] Problem receiving ROACH2 packets

Hi All, I am having a problem receiving 10gbe packets from one of the interfaces on a dual-port Myricom NIC. I believe the packets are properly addressed, and wireshark sees them fine, but programmatically we cannot receive them on 10.0.0.102 via C or Python (recvfrom() just hangs), while on 10.0

Re: [casper] Real-time control of ROACH2 with KATCP

e (time.time() - tic < timeout): > if fpga[-1].is_connected(): > break > time.sleep(0.01) > else: > print "fpga connection timed out" > > Glenn > > On Mon, Jun 10, 2013 at 9:40 AM, Gary, Dale E. > wrote: > > Hi All, > > > &

[casper] Real-time control of ROACH2 with KATCP

Hi All, This may be a Python question rather than a CASPER/KATCP one, but I have not been able to solve it. I am trying to connect to multiple ROACHes in order to write delays to the coarse delay registers once per second. I attempted to do the following (minimal code that displays the bug) to c

Re: [casper] Setting up 10gbe core for ROACH2

Hi Marc, Thanks for pointing out the ?tap-info command. In fact, the problem I am having does not seem to be the tgtap server alone (although it may be implicated), and is certainly not due to too much ARP traffic. I found that after the startup script is done the ARP table is not correct, but I

Re: [casper] Setting up 10gbe core for ROACH2

; > source, built it on the ROACH 2 (which requires mounting the > > filesystem rw so you can apt-get the libz package and perhaps > > another), and then run that version of tcpborphserver3. > > > > Glenn > > > > On Fri, Jun 7, 2013 at 9:45 AM, Gary, Dale E

Re: [casper] Setting up 10gbe core for ROACH2

archive. > > Glenn > > On Fri, Jun 7, 2013 at 9:14 AM, Gary, Dale E. > wrote: > > Hi All, > > > > We previously were successful in setting up the 10gbe core for ROACH1 > using > > tap_start, which I believe resulted in a process tgtap appearing in the > >

[casper] Setting up 10gbe core for ROACH2

Hi All, We previously were successful in setting up the 10gbe core for ROACH1 using tap_start, which I believe resulted in a process tgtap appearing in the ROACH. I am using the same method for ROACH2 (using the latest ROACH2 rev 2 file system loaded via netboot), and there is no reported error,

Re: [casper] netbooting ROACH2

Sorry for all of the questions, but now when I try to program the FPGA with katcp is complains about a read-only file system. /etc/exports declares it rw, so I seem to be stuck again. Thanks, Dale On Thu, Jun 6, 2013 at 5:02 PM, Gary, Dale E. wrote: > > Good luck! I don't have

Re: [casper] netbooting ROACH2

ote: > Hi, Gary, > > On Jun 6, 2013, at 9:20 AM, Gary, Dale E. wrote: > > > Hmm, I was just trying to follow the instructions in the roach nfs > guide, which says to create a directory named etch to put the root file > system. I probably renamed the directory to etch. Will that

Re: [casper] netbooting ROACH2

Hi Dave, Hmm, I was just trying to follow the instructions in the roach nfs guide, which says to create a directory named etch to put the root file system. I probably renamed the directory to etch. Will that matter? It is the correct file system--just a different directory name. However, I fix

Re: [casper] netbooting ROACH2

image? I think you have the > >> right > >> one, but it may be too old. > >> > >> Yes, Master<1017> md5sum uImage-current > >> 300753db387044c3cb8f5f9d92c4fb37 uImage-current > >> > >> We also used the following: > >> Yes

Re: [casper] netbooting ROACH2

> md5sum u-boot.bin > e396454ffa9d1e2dcbf87abf9eafccba u-boot.bin > > Hope this helps! > > John > > > Posting on behalf of Dale. Please see the message below. > > > > Thanks, > > > > Nimish > > > > > > -- Forwarded mess

[casper] Faculty Position in Big Data at NJIT

Dear Casperites, The Physics Department of New Jersey Institute of Technology is searching for an Assistant Professor in the area of "Big Data." Since many new radio instruments excel in producing lots of data, there are likely some in your groups or at your institutions who are doing front-li

Re: [casper] NFS server + Casper tutorials

Hi Fabien, I am working through your ROACH NFS guide, and have found it very useful so far. Thanks! Not everything is yet working, but I wanted to report a couple of issues that I found so far. First, there are a couple of typos in the section titled "The filesystem," where the directory roa