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
Posting on behalf of Dale. Please see the message below.
Thanks,
Nimish
-- Forwarded message --
From: Gary, Dale E. dale.e.g...@njit.edu
To: casper list casper@lists.berkeley.edu
Cc:
Date: Thu, 6 Jun 2013 00:40:25 +
Subject: netbooting ROACH2
Hi
message --
From: Gary, Dale E. dale.e.g...@njit.edu
To: casper list casper@lists.berkeley.edu
Cc:
Date: Thu, 6 Jun 2013 00:40:25 +
Subject: netbooting ROACH2
Hi Casperites,
I am setting up a ROACH2 rev2 for netbooting, and I think I am almost
there, but the ROACH
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
...@astro.berkeley.eduwrote:
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 matter
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. dale.e.g...@njit.edu wrote:
Good luck! I
, Gary, Dale E. dale.e.g...@njit.edu
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
ROACH.
I am using the same method for ROACH2 (using the latest ROACH2 rev 2 file
system
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
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
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
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.
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
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,
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
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
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 wishes,
dan
On Fri, Jan 24, 2014 at 4:30 PM, Gary, Dale E. dale.e.g...@njit.eduwrote:
Hi All,
Could
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
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
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
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
wer 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 to reduce to real design. T
tennas, 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
> SWARM design m
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
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,
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. <dale.e.g...@njit.edu> wrote:
> Hi Yan,
>
> This sounds like the problem we had until Matt Dexter and Dave MacMahon
> determine
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
ou 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:
>
> Hi
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
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
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
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
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
> 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 bring up a new ROACH2 bo
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
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
/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
>
>
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 Gary, Dale E wrote:
> >
>
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
twork 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 upgraded my remote boot server
ing 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 E wrote:
ou
> 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 the environmen
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
> dnsmasq on the old se
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