Re: [casper] Problems using bee_xps / IBOB board

to generate a valid file identifier. 2013/12/7 John Ford jf...@nrao.edu xc2vpc50 is not in system generator! Is this a Webpack ISE? You have to use the real downloaded and licensed ISE for the bigger chips. Attached a picture 2013/12/7 Rolando Paz flx...@gmail.com Hi

[casper] I2C oddity to beware of on ROACH-2

Hi all. We have discovered that if the USB cable is hooked up to a ROACH-2 and the cable is plugged into a computer, the I2C bus cannot be written to by the ROACH-2 anymore. At least not reliably. We chased this around the lab today for a few hours before realizing it only failed when I had the

Re: [casper] system.twx missing

Hi all, I'm compiling a model file for ROACH1 but I have to solve some timing constraints which are not met. Unfortunately, the system.twx file to be opened with the timing analyzer which should be found in XPS_R..BASE/implementations/ is missing. Hmm. If it got as far as the snapshot

Re: [casper] E10G81GT2CX4 Intel 10GbE card

Hi Casperites, Does anybody have experience with this Intel card??? I would like to buy a new one but the two listed in the CASPER Wiki (https://casper.berkeley.edu/wiki/Recommended_10_GbE_Hardware) are not available on local sellers. Do you have tested any other cards? Hi Andrea. We

Re: [casper] Spare iBOBs?

Mo has excess stock of iBOBs that he's offering to sell off (very) cheaply! You might just want to buy a spare or two. Thanks, Jason! Good idea... Jason On 11 Sep 2013, at 23:20 , John Ford wrote: Hi all. Does anyone have any spare iBOBs that they could spare for a few weeks/months

Re: [casper] Spare iBOBs?

Hi all. I've got a couple loaners on the way. Thanks to the many other offers of help! John Mo has excess stock of iBOBs that he's offering to sell off (very) cheaply! You might just want to buy a spare or two. Thanks, Jason! Good idea... Jason On 11 Sep 2013, at 23:20 , John Ford

[casper] Spare iBOBs?

Hi all. Does anyone have any spare iBOBs that they could spare for a few weeks/months? We need it for a spare part for GUPPI. And can these be repaired by anyone? We have a couple with dodgy Cx-4 connectors, and a couple with dodgy zdok connectors. Thanks! John

Re: [casper] {Disarmed} Re: How do you program a ROACH-2 that is soloboot mode?

Alec, progdev does not exist on my ROACH2 when booted with soloboot: /usr/bof # wget http://169.254.241.40/casper_test_2013_Aug_21_1251.bof Connecting to 169.254.241.40 (169.254.241.40:80) casper_test_2013_Aug 100%

Re: [casper] casper libraries

...@aps.anl.gov To: John Ford jf...@nrao.edu Cc: casper@lists.berkeley.edu Sent: Monday, August 19, 2013 10:19:58 AM Subject: Re: [casper] casper libraries I am in, T - Original Message - From: John Ford jf...@nrao.edu To: Timothy Madden tmad...@aps.anl.gov Cc: casper

Re: [casper] casper libraries- casper_xps in new mlib_devel?

Message - From: John Ford jf...@nrao.edu To: Timothy Madden tmad...@aps.anl.gov Cc: casper@lists.berkeley.edu Sent: Friday, August 16, 2013 4:40:37 PM Subject: Re: [casper] casper libraries Folks It seems that the libraries listed on https://casper.berkeley.edu/wiki/Repositories are all

Re: [casper] casper libraries

Folks It seems that the libraries listed on https://casper.berkeley.edu/wiki/Repositories are all at least 2 years old. Is there REALLY no development on Casper libraries for 2 years? Where does one get something more recent? Tim Madden It's all been moved to github. There are other

Re: [casper] Fwd: Error when execute .bof files

Hi Dave When it run uname -a, it shows this: Linux xroach.osf.alma.cl 2.6.32-358.11.1.el6.i686 #1 SMP Wed May 15 10:48:56 EDT 2013 i686 i686 i386 GNU/Linux Hi Alex. That's not a ROACH board, it must be your host attached to your roach board. you should do something like: ssh

Re: [casper] Hello CASPER

Hi rolando. I'll add a little to what Dan said in his mail. Hello CASPER I have some doubts, and I hope you can help me understand. Regarding correlators: 1. What is the reason of using one Roach (exclusively) for F engine, and one Roach (exclusively) for the X Engine, through one

Re: [casper] SFP+ Cables

just as Dan says larger gauge cables are definitely recommended for longer runs. The exact mapping of xx AWG to NN meters may be ill defined. not just set by COTS switch but also when the Roach2 and SFP+ Mezzanine card are included in the mix. We've had one particular brand of cables of

Re: [casper] Possible CASPER workshop lecture topic

Hi Rich, In hoping to get a yellow block tutorial up and running (there is a tutorial Dave George wrote a few years ago which I'll use as a starting point), probably based around a bidirectional gpio block. But if you (or anyone else) have any thoughts or requests, do get in touch. I think

Re: [casper] strange problem in the FFT

Hi John We are building several new pulsar and spectral line personalities, and we have a weird problem with the FFT block. No matter how many channels we configure a block for, the last channel in each 1/8th of the spectrum is getting lost. For instance, if we have a 64 channel

[casper] strange problem in the FFT

Hi all. We are building several new pulsar and spectral line personalities, and we have a weird problem with the FFT block. No matter how many channels we configure a block for, the last channel in each 1/8th of the spectrum is getting lost. For instance, if we have a 64 channel personality,

Re: [casper] (no subject)

Hi, Jeff, Matt pointed out to me that the crystals on the ROACH2 are pretty nice (100 MHz +/- 25 ppm). Maybe this one misbehaving ROACH2 has a bad crystal (or a badly soldered crystal)? FWIW, when the PAPER correlator used FPGA-based X engines, the X engines ran asynchronously from the F

Re: [casper] Problem receiving ROACH2 packets

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

[casper] Fwd: how to stop casper_xps?

Hi all. Posted for Paul Original Message Subject:how to stop casper_xps? Date: Fri, 14 Jun 2013 12:53:22 -0400 From: Paul Marganian pmarg...@gb.nrao.edu To: casper@lists.berkeley.edu Hi all, Sorry if this is a silly question: once you click 'Run XPS' on the

Re: [casper] netbooting ROACH2

(rw,relatime) devpts on /dev/pts type devpts (rw,noexec,relatime,mode=620) tmpfs0 on /var/tmp type tmpfs (rw,relatime,size=32768k) tmpfs1 on /tmp type tmpfs (rw,relatime,size=16384k) root@vegasr2-2:~# John Thanks, Dale On Thu, Jun 6, 2013 at 4:44 AM, John Ford jf...@nrao.edu wrote: In our

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. The root filesystem is probably mounted read-only. We got around this by mounting the /boffiles directory

Re: [casper] lower limit of the ROACH clock rate?

Hi Louis, I have the same problem of roach adc sampling rate. We want to use ROACH as a holography correlator,but the sampling frequency is too high. After we reset the MSSGE block clock rate to 50 MHz, and also used the method you have been used(change all of the instances of 'HIGH' to

Re: [casper] netbooting ROACH2

In our R2 systems, we have the following kernel: root@vegasr2-2:~# uname -a Linux vegasr2-2 3.7.0-rc2+ #20 Fri Jan 4 18:04:26 SAST 2013 ppc GNU/Linux I'm pretty sure the Roach-2 kernels are all 3.x. Can you get a checksum (md5sum) of the uimage? I think you have the right one, but it may be too

Re: [casper] QDR problems

, at 23:01, John Ford wrote: Hi all. On ROACH-1, we have a design using 2 QDR snap blocks. The one using QDR1 does not work, but the one with QDR0 works fine. Even if there is only one qdr snap block in the design, qdr1 doesn't work. Is there a known problem with QDR1 on ROACH-1? John

Re: [casper] QDR problems

Hi, John, On Jun 3, 2013, at 6:03 AM, John Ford wrote: We use both simultaneously quite reliably on KAT-7. I'm not aware of any issues. Have you tried another ROACH board? Yes, three different ones exhibit the same problem. Here's the library we have: Yes, Master1017 git describe

[casper] Interfacing PPC and FPGA on ROACH-1

Hi all. We have set before ourselves a task to read blocks of data from the FPGA through some shared BRAMs or something, and send it out through the 100 Mbit Ethernet. Does anyone have a good idea for synchronizing the data transfers? I was thinking of using: 1) 2 ping-pong shared FIFOs.

Re: [casper] Fault LED

Hi All, Fault LED DS27 sometimes comes on on my ROACH2. Is there a way to query for the source of the problem, from both the USB port and ethernet connection? Also, my power switch sometimes does not work? Is anyone having this sort of problem? Hi Rich. I'm pretty sure your power

Re: [casper] ROACH2: Cannot communicate over USB

Hi Ryan, What machine you are using? FWIW, we had hard time time connecting from RedHat, it just worked smoothly with Windows and Ubuntu. This reminded me that I that our sysadmin installed a udev rule for this in my redhat 6 laptop: Yes, Master1000 more /etc/udev/rules.d/99-ftdi.rules

[casper] ROACH gigabit Ethernet status

Hi all. Can someone tell me if the ethernet port on the newer ROACH boards is reliable at 1 gb/s? Also, what is the maximum data rate expected through that interface? Thanks! John

Re: [casper] ROACH gigabit Ethernet status

. it's tricky to write PPC software that gets more than 20Mbit/sec out of the port, but i'm not sure about this 20Mbit/sec number. OK. I wonder if anyone else has experience with this? I guess we'll test it if not... John best wishes, dan On Sun, Apr 28, 2013 at 1:57 PM, John Ford jf

Re: [casper] bug in shared bram block?

I attached the model for good measure. Well, I thought about it, but I didn't actually do it... Here it is. jford_sbram.mdl Description: Binary data

Re: [casper] bug in shared bram block?

. Obviously not! Dave On Apr 24, 2013, at 11:59 AM, John Ford wrote: Hi all. When trying to use the shared bram block in a recent (march 15ish) version of the casper xps blockset from mlib_devel, we have a problem. The munge_io block inside the yellow block doesn't work. It has a bad parameter

Re: [casper] bitstream: command not found

Hi all, I have a new error when I ran the .bof to using ./tut3_2048.py 192.168.100.2 -b tut3_1ghz_2013_Apr_09_1815.bof this is: \nAuthor: Jason Manley, November 2009. : File name too long ./tut3_2048.py: line 15: bitstream: command not found ./tut3_2048.py: line 18: syntax error near

Re: [casper] No ADC clock signal in ROACH2 Rev. 2

Hi Thanks of prompt response I have compared the schematics of both versions . The clock pins are kept the same. I compiled the bof files using the rev 2 ucf file. Hi Homin. We are successfully using the ASIAA 5 GS/s ADC and Rev 2 roach together using the ADC clock input. Maybe Glenn

Re: [casper] Roach Conduction Cooling

Thanks for everyone's suggestions. For the CPUs on our old payload, we used heat straps straight to the gondola frame (a very large heatsink). A giant metal (or graphite/carbon foam) plate that attaches to the ROACH and is then attached to the gondola frame would work. Another thing to note

Re: [casper] ska-sa CASPER Bitgen fails within gen_xps_files but not the shell

Hi Dan. This looks like the mixed-case model filename problem, but obviously your filename is not mixed case. Send me your .mdl and let me try it here. John I recently installed Xilinx 14.4, MATLAB 2012b on Red Hat 6, and checked out the latest ska-sa toolset. I followed the instructions

Re: [casper] Configuring ROACH2 boards for netboot

Hello all, We have been using our ROACH2 boards so far with soloboot. We are running into some problems (e.g., missing tgtap), and we think it is best to migrate to netboot. (We anyways wanted to have that eventually). We are starting from scratch here in terms of configuring ROACH2 boards

[casper] Building a new romfs

Hi all. We are going to attempt to update the standard romfs file system to support some additional stuff, like ssh and ???. Can someone give me a hint where to start? Or is there a better way? John

Re: [casper] Building a new romfs

On Wed, Apr 3, 2013 at 1:30 PM, John Ford jf...@nrao.edu wrote: Hi all. We are going to attempt to update the standard romfs file system to support some additional stuff, like ssh and ???. Can someone give me a hint where to start? Well, the current romfs is mainly busybox (unmodified

Re: [casper] ROACH2 Login failed while NFS booting

Hi everyone, We are trying to boot the ROACH2 board through NFS. As we interrupt the default boot and issue the command for NFS boot (*run netboot*), the booting starts. Once the booting is over, we could see the login prompt but the username root is treated as invalid. However, trying the

Re: [casper] Xilinx System Generator_error

I think there are missing environment variables. Most of us have a script that sets them on Linux, and on Windows, you have to set some environment variables in your profile. I don't think we open system generator from the start menu, generally. I take it you are trying to use it outside of the

Re: [casper] triggering off ROACH GPIO

Does anyone have any input on trying to use the GPIO A and B headers for very simple inter-ROACH direct FPGA to FPGA communication? I'm know that ROACH supports this sort of thing using 10 gbe, but for conveying trigger pulses, this (to my rather casper-naive intuition) seems simpler and

Re: [casper] ERROR:Xflow - map: application received signal 9

Hi. Not sure of your error, but signal 9 is a sigkill by the system. Did someone kill your process or did you run completely out of memory? Running out of memory is a common cause of a spontaneous signal 9. John hi all, I am trying to compile the correlator of tutorial 4 but i changed the

Re: [casper] CASPER 10 GbE yellow block

Hi, Rich, We've sustained 9.9 Gpbs simultaneously from two 10 GbE ports (19.8 Gbps aggregate) on a ROACH into a PC with two 10 GbE NICs without dropping any packets. This was direct connect (i.e. no switch) and transmit only (i.e. no packets were sent back to the ROACH). Rich, Dave, can

Re: [casper] CASPER 10 GbE yellow block

On Feb 13, 2013, at 1:30 PM, John Ford wrote: Hi, Rich, We've sustained 9.9 Gpbs simultaneously from two 10 GbE ports (19.8 Gbps aggregate) on a ROACH into a PC with two 10 GbE NICs without dropping any packets. This was direct connect (i.e. no switch) and transmit only (i.e. no packets

Re: [casper] IIC on R2, again...

if I'm using nfs? John Regards Alec On Thu, Jan 3, 2013 at 5:46 AM, John Ford jf...@nrao.edu wrote: Hi all. Ive picked up where Glenn Jones left off on Dec 5th, working on the iic for our R2 system, and I have got to where I think the driver's missing or just not loaded. When I try to open

[casper] IIC on R2, again...

Hi all. Ive picked up where Glenn Jones left off on Dec 5th, working on the iic for our R2 system, and I have got to where I think the driver's missing or just not loaded. When I try to open the i2c-X devices, I get : root@vegasr2-1:/usr/local/etc# i2cdetect -r 0 Error: Could not open file

Re: [casper] Fwd: 10Gb fiberoptic cable

hi rick, there are no cx4-sfp+ cables, as there's a format conversion (8/10 encoding to 64/66) so you need electronics. you can purchase single cx4-sfp+ adapters, made by ~three different companies, $1Kish. there are less expensive CX4 fiber cables than the one you received a quote on.

Re: [casper] xilinx glibc issues

... In the meantime, I found an old source rpm for glibc 2.5-65. As soon as a I finish building and installing it I'll let everyone know how it goes. If it works, I'll post an ftp link to the rebuilt rpm's. Very cool. John -Alex On Fri, Aug 10, 2012 at 9:00 AM, John Ford jf...@nrao.edu wrote

[casper] CASPER workshop 2012

Hi all. Preparations for the meeting are coming along! We have quite a few participants in the workshop, but there's still time to register for the conference. We would like to have a full count of participants by August 1, so that we can prepare the accommodations and food. We will keep the

[casper] Some workshop notes

Hi all. The workshop is coming up quickly! If you need a letter of invitation for a visa, please send a request to casper2...@nrao.edu. If you would like to apply for a student travel support, please have your advisor send a request to casper2...@nrao.edu. The transportation from Dulles to

[casper] Some workshop notes

Hi all. The workshop is coming up quickly! If you need a letter of invitation for a visa, please send a request to casper2...@nrao.edu. If you would like to apply for a student travel support, please have your advisor send a request to casper2...@nrao.edu. The transportation from Dulles to

Re: [casper] resolv.conf setup in the ROACH filesystem

Werthimer wrote: jason, mark, john asked if we could fix this in github. who should do this? dan -- Forwarded message -- From: John Ford jf...@nrao.edu Date: Mon, Jun 18, 2012 at 2:08 PM Subject: [casper] resolv.conf setup in the ROACH filesystem To: casper

[casper] ROACH hardware failures

Hi all. We've had a couple of ROACH failures with identical causes. Maybe some of you have seen this, but it's worth keeping in mind in case you have a problem. The symptom is that the ROACH would sort of power on, but then turn off spontaneously. On one, as soon as the bof was loaded the

Re: [casper] ROACH hardware failures

a laptop into the Xport to query it directly after it self-shutdown. Jason On 19 Jun 2012, at 15:23, John Ford wrote: Hi all.  We've had a couple of ROACH failures with identical causes. Maybe some of you have seen this, but it's worth keeping in mind in case you have a problem

[casper] resolv.conf setup in the ROACH filesystem

Hi all. In our Roach file systems, we have the following resolve.conf: Yes, Master1019 more resolv.conf search sensysnetworks.net nameserver 192.168.1.1 This isn't really a Good Thing. It causes slowdowns and general lossage in the DNS system, since there's no 192.168.1.1 on our networks. We

[casper] CASPER workshop 2012

session, if a poster is desired. Several Invited Papers will be solicited to allow for adequate presentation of larger or complex topics. Please contact casper2...@nrao.edu if there are any questions. John Ford for the SOC Call.pdf Description: Adobe PDF document

Re: [casper] Bidirectional IO?

Hi John 1) add the inout choice to the mask pulldown 2) add it to the mask script, and check to make sure it's a good config for the bits specified, and redraw the block with the extra direction port. 3) modify xps_gpio.m to handle the inout case 4) Write/modify a vhdl module to implement

Re: [casper] Bidirectional IO?

way to go about it? As far as handling the simulation part, it seems to me that the model of the shared bram is a reasonable model. But we really don't know at this point... Any ideas are welcome! John Regards Andrew On Tue, 2012-04-17 at 10:43 -0400, John Ford wrote: Hi All

Re: [casper] Roach1 uboot network curiosity

Glen, The problem you describe sounds like an issue we had during testing at Green Bank last December where the NRAO DHCP server would release the DHCP entry if the client did not renew it at regular intervals. It turns out that the ROACH linux was not renewing the DHCP entries. I think the

Re: [casper] Matlab crashes with tutorial 3

Hi all. Rich Lacasse at NRAO in Charlottesville has the same problem. I also tried it on our machine in Green Bank, with the same bad results. That's three separate machines and users with the same problem. Something's wrong with this tutorial, or it is incompatible with the latest

Re: [casper] Matlab crashes with tutorial 3

directory *should* work (along with their python counterparts). Feel free to give those a go and give me a shout if you still have problems. Very cool, Jack! I'll try it out tomorrow on our GB installation. John Cheers, Jack On 9 May 2012 20:49, John Ford jf...@nrao.edu wrote: Hi all

[casper] 2012 CASPER Workshop

Hi all. We're working on organizing the 2012 workshop. We plan to have lots of tutorials, science talks, and technical talks. It there's something in particular you'd like to see, let me know. Here's a link to the conference web site. It's also linked to the CASPER home page. It's mostly

Re: [casper] Tutorial 2 Compilation Problems

When I try to compile Tutorial 2b I got the following errors. Rich tried compiling Jason Ray's enhanced Tutorial 2 and got similar platgen errors. Does anyone have any inputs on the possible cause and cure for these errors? Thanks, What did you name your .mdl file? You can't have any

Re: [casper] Tutorial 2 Compilation Problems

`implementation/system.bof': No such file or directory cp: cannot stat `implementation/system.bof': No such file or directory Error using == gen_xps_files at 702 Programation files generation failed, EDK compilation probably also failed. On 05/03/2012 10:37 AM, John Ford wrote: When I try

Re: [casper] Latest ROACH firmware/software versions

planning to host the binaries. Maybe these should be hosted on the CASPER account at github? Probably that would be a good idea. Then everything will be in one place. Thanks for looking that over. John Jason On 23 Apr 2012, at 19:48, John Ford wrote: Hi all. Could someone look at the web

Re: [casper] reliable data streaming protocol for 100Mbps ethernet

Hey Andrew, Thanks for the reply - we are looking forward to the ROACH 2 in the future. I haven't been able to open all of the tutorials, but I have seen a few. So I apologize if I may have missed something obvious, and I would even really appreciate an answer that says hey you, go read

[casper] roach linux

Hi all. Has anyone got any ideas about getting the dns resolver working on roach? Ours doesn't. :) Also, the lack of proper DHCP on network booting is a pain. John

Re: [casper] BEE2 with a misbehaving internal PSU

Hi Matt. We've had failure of the connections at the BEE2 board itself. The connectors lose their spring and oxidize. We just soldered the wires on instead of changing the connectors. For us the symptom was that the bee2 would boot up fine, but would fail once a few of the FPGAs were loaded up

Re: [casper] missing python modules

I'm trying to run the bof file from Workshop 2010 Tutorial 3, r_spec_2048_r105_2010_Jul_26_1205.bof. I installed katcp and corr and then when I ran spectrometer.py I began to get one missing module after another. iniparse was easy. It's standard Python. There were a few others that were

Re: [casper] CASPER workshop videos

(335J) melissa.a.sori...@jpl.nasa.gov wrote: Hi John, I am interested in the videotaped CASPER tutorials also. Regards, Melissa On 2/17/12 11:49 AM, John Ford jf...@nrao.edu wrote: Hi all. I'm wondering about the value of the workshop videos. Each year's workshop has been recorded

Re: [casper] beware of non-xilinx supported operating systems

using. best wishes, dan On Fri, Feb 17, 2012 at 12:36 PM, Tom Kuiper kui...@jpl.nasa.gov wrote: On 02/17/2012 11:49 AM, John Ford wrote: I'm wondering about the value of the workshop videos. Each year's workshop has been recorded and posted to the internet for the benefit of all

Re: [casper] Fresh set up with Ubuntu

And to make sure I understand, are you guys using RHEL 5 64 bit without updates? Our University seems to have subscriptions for RHEL 6. Hi Laura. We are using RHEL-5 with most updates except for the latest glibc update, which exposes a fatal bug in one of the Xilinx tools. I think that one

[casper] (no subject)

This looks pretty cool... *** HPC News *** Solarflare turns network adapters into servers When a CPU just isn't fast enough http://www.theregister.co.uk/2012/02/08/solarflare_application_onload_engine/ Solarflare, a maker of 10 Gigabit Ethernet server adapter cards for performance-obsessed

Re: [casper] Correct versions to use?

Jan 2012, at 18:47, G Jones wrote: The casper libraries have been migrated to github. I always find this most easily by googling casper-astro github which gives this link: https://github.com/casper-astro Glenn On Tue, Jan 31, 2012 at 7:56 AM, John Ford jf...@nrao.edu wrote: Hi all. What

Re: [casper] Initial Board Startup

We have an new Roach board from the factory. I understand it should have uboot installed in flash, and I should be able to observe the boot procedure via the serial port. When I observe with a serial port setup to 115,200,N,8 I see no activity on powering up the card. What do I need to do

Re: [casper] Roach I Board Power Requirements

Hi Joe. Check these out: http://www.mini-box.com/picoPSU-90 We have one in GB if you want to try it out. Works fine. John hi joe, can you leave the DC-DC converters on the roach board? then you only need to supply the 12, 5 and 3.3 volts that come from the ATX power supply. best

Re: [casper] Roach I Board Power Requirements

hi joe, the DC-DC converters are standard on the roach boards, so you only need to supply 3.3, 5 and 12 volts to the ATX connector. if you use john ford's $30 pico-PSU-90, then you only have to supply one voltage: +12 Volts at 8 amps. I'd echo this. The supplies to the FPGA are finicky

Re: [casper] MSSGE toolflow software

Hi All, We will be procuring, soon, the required software to run the MSSGE toolflow. I wanted to check to make sure that the web page is up-to-date. This is what it says: * Matlab R2008a or R2008b (v7.7.0) * Simulink R2008b (v7.2) * Xilinx System Generator v10.1.3.1386

Re: [casper] Short Error Message from gen_xps_files at 328

I need to check some logs, but I do think somebody did some of the CentOS updates that were announced available by the CentOS system updater. I don't see the reference to the glibc problem in recent CASPER email. May mail seems to have bounced that I sent. In any case, there is a bug in

Re: [casper] Short Error Message from gen_xps_files at 328

A new problem is preventing me from compiling even simple models with bee_xps. For example, when I compile a model containing only the system generator, XSB Core Config, Xilinx constants and CASPER software registers, I receive the following messages from bee_xps. Detected Linux OS

Re: [casper] Error: An error encountered whil running XST

I think you missed some of the messages from the terminal, and I bet that the top message says something like glibc detected a memory error: freeing memory that is already freed or some such. There has recently been an update to glibc on Red Hat that evidently traps when it encounters this

[casper] 64 input ADC board

Hi all. Does anyone have a 64 input ADC board we could borrow for some SFDR and crosstalk tests? We'd need it for a couple of weeks. Thanks! John

Re: [casper] NVIDIA open sources CUDA

Hey all, Not sure if this is interesting/helpful to anyone, but nvidia just announced that they were open sourcing CUDA and it's compiler. This is used in high-performance GPU computing and might provide some insights. http://developer.nvidia.com/content/cuda-platform-source-release Looks

Re: [casper] Spectrometer using ADC on PCI Express card feeding NVidia GPU

On further investigation, I see that the big problem with trying to build a board with ADC to PCIe x16 is the lack of a suitable FPGA to do the PCI end. The lowest-cost FPGA from Xilinx that will handle x8 PCIe costs $3000. Methinks that the FPGA makers don't want us building boards that

Re: [casper] Spectrometer using ADC on PCI Express card feeding NVidia GPU

I think it is entirely possible, depending on your need for sample rate (bandwidth) and the rest of the application. At NRAO, we're using the FPGA/digitizer as a front end to compute nodes as Dan mentioned. Right now, we can't do a dual channel 2.5 Gs/s 16k channel spectrometer in a PC. The

Re: [casper] I2C and SPI on roach {I,II}

Thanks, David. What voltage levels are on the IIC bus on R and R2? John Hi John. We have a need for an I2C *or* an SPI port on ROACH 1 and 2. There are actual headers on R1 that say SPI and IIC. Are these attached to the PPC? Is there any driver support for them? These do attach to

[casper] I2C and SPI on roach {I,II}

HI all. We have a need for an I2C *or* an SPI port on ROACH 1 and 2. There are actual headers on R1 that say SPI and IIC. Are these attached to the PPC? Is there any driver support for them? On R2, these ports are not obviously present. I suppose the GPIO pins connected to the PPC could be

Re: [casper] 10 gbe packets received at a reduced rate

Hi all, I am working on a correlator design (3 antenna, single polarization) targeted toward a Roach board (250 MHz FPGA clock). It has 3 F engines and an X engine on the same Roach board. We are accumulating the correlator ouput (and some other calculations), packetizing it (8 packets per

[casper] Open hardware site

Some cool stuff here... http://www.ohwr.org/projects/cernohl/wiki/CernOhlProjects

[casper] TI DSPs

Interesting article on TI DSP chips and HPC. Claims they are more power-efficient in terms of flops/watt. John http://www.hpcwire.com/hpcwire/2011-10-27/texas_instruments_makes_hpc_play_with_new_multicore_dsp_chips.html

[casper] Forcing 100 mb on Ethernet

I've spelunked through the mail archive, but I can't find anything that tells me how to force the roach to NFS boot at 100 mbit. What's the magic incantation? John

[casper] CASPER Advisory Board meeting and membership

Hello, all. At the CASPER workshop at NCRA in Pune, India next month, the CASPER advisory board will meet to discuss the accomplishments of the collaboration, as well as callenges and plans for the future. The board seeks input from anyone associated with the collaboration, and so if you have

Re: [casper] ROACH and ADC RFI tests

to package them better than they currently are packaged, for sure, likely either packaging them individually in the SA MeerKAT custom enclosure, or in a common shielded rack. John Thanks, Dave On Sep 6, 2011, at 1:14 PM, John Ford wrote: Hi all. We tested a ROACH and and 2 ADC boards (3 GS

Re: [casper] ROACH and ADC RFI tests

Thanks, John! On Sep 6, 2011, at 1:47 PM, John Ford wrote: Hi, John, That's very interesting. How does this compare with a laptop or other PC? Why was it tested with the lid off? Is that how it will be deployed? Laptops and other PCs are a different kettle of fish altogether

Re: [casper] Workaround for read and write requests timing out?

snip I've already forced the computer's network connection going to the roach network to be 100Mbit and verified that it's running at that rate with ethtool. Is there anything else that should be set? I need to find a serial cable so I can take a look at those diagnostic messages Have

Re: [casper] Trouble running tutorial 3

Hi Ricardo. If you can send me your .mdl file, I will try it on our system. John Hello Jack, Thanks for your email. in fact I did not place the xilnx system and bee xps on that try. I did it now, and the outcome after a ctrl-d is the same (screenshoot attached). The matlab command

Re: [casper] UDP

Thanks for pointing out that the spec differed from the catalog description I had read. I think I'm going to go with a Cisco SG200-26. It has a 4MB shared buffer for 24+2 mini-GBIC gigabit ports. This is the largest shared buffer I've seen for ~24 ports. It supports frame sizes up to 10kbytes

Re: [casper] UDP packet sizes and 1Gbe routers

Hi Tom. Most newer switches support jumbo frames, and most support ~9000 byte packets. I say most because you just have to look at the feature set in the data sheet. Some of the inexpensive Netgear 5,8, and 16 port switches support a packet size of from 9000 to 10240. Another problem might be

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