Hi Jack, Dan, et al,
I’ve linked to two .mrp files in this message. The first is here
<https://drive.google.com/file/d/0BwvomAqfDQ2DNFZJOEZnS2NUZHd0QV9GamN4S3F6dkl6MXpj/view?usp=sharing>
and contains the utilization report for the spectrometer logic on a SX95T
chip. The second, this one
<https://drive.google.com/file/d/0BwvomAqfDQ2DcEdNUGpJWWNHQXIzeS1CanhKT1lxOFF1ZHRv/view?usp=sharing>
is the utilization report for essentially the same design but with a quarter
of the FFT/PFB channels on a LX110T chip. The sad thing is that it looks like
I’m way over the LX110T limits..even with only 512 channels (as opposed to the
original 2k channels). The compile with a quarter of the channels failed, btw.
What do you think?
L
links to utilization reports:
LX110T:
https://drive.google.com/file/d/0BwvomAqfDQ2DcEdNUGpJWWNHQXIzeS1CanhKT1lxOFF1ZHRv/view?usp=sharing
SX95T:
https://drive.google.com/file/d/0BwvomAqfDQ2DNFZJOEZnS2NUZHd0QV9GamN4S3F6dkl6MXpj/view?usp=sharing
> Louis P. Dartez
> Graduate Research Assistant
> STARGATE
> Center for Advanced Radio Astronomy
> University of Texas Rio Grande Valley
> (956) 372-5812
> On Oct 29, 2014, at 4:10 AM, Jack Hickish <jackhick...@gmail.com> wrote:
>
> Hi Louis,
>
> You can grab the report from the terminal, but it's also at the top of
> the map report file, at
> <compile-directory>/XPS_ROACH_base/implementation/system_map.mrp
>
> Cheers,
> Jack
>
> On 29 October 2014 03:31, Louis Dartez <louisdar...@gmail.com> wrote:
>> Hi Dan,
>> I cut the number of frequency channels from 2k to 512 this afternoon. When I
>> left the lab the design was still compiling so I won’t know how it fared
>> until morning. I forgot to grab the resource utilization to post here.
>> What’s the best way to get the utilization report anyway? Should I just cut
>> it from the xps output in the terminal?
>>
>> I haven’t tried changing the number of PFB taps yet. It’s currently set to 4
>> in my design.
>>
>> The model I use now utilizes a single PFB block and a single FFT block, both
>> configured for four simultaneous inputs.
>>
>> L
>>
>> Louis P. Dartez
>>
>> Graduate Research Assistant
>>
>> STARGATE
>>
>> Center for Advanced Radio Astronomy
>>
>> University of Texas Rio Grande Valley
>>
>> (956) 372-5812
>>
>>
>> On Oct 28, 2014, at 10:26 PM, Dan Werthimer <d...@ssl.berkeley.edu> wrote:
>>
>> can you cut back the number of frequency channels?
>> or the number of PFB FIR taps?
>> or do away with the PFB FIR entirely?
>>
>> best wishes,
>>
>> dan
>>
>>
>> On Mon, Oct 27, 2014 at 5:36 PM, Louis Dartez <louisdar...@gmail.com> wrote:
>>
>> Hi Dan,
>> Slices is what seems to be problem from the error report (which I can send
>> around tomorrow morning when I’m back in the lab). I seem to remember that
>> that the compiler raised an error stating that I was trying to ~80k slices
>> when only ~60k are available. I knew this would be a slippery slope when I
>> started. But it would be great if we could salvage our LX110T.
>>
>> Any chance someone out there has a ROACHI SX95T that’s just collecting dust?
>> L
>>
>> Louis P. Dartez
>>
>> Graduate Research Assistant
>>
>> STARGATE
>>
>> Center for Advanced Radio Astronomy
>>
>> University of Texas Rio Grande Valley
>>
>> (956) 372-5812
>>
>>
>> On Oct 27, 2014, at 7:31 PM, Dan Werthimer <d...@ssl.berkeley.edu> wrote:
>>
>> hi louis,
>>
>> are you running out of memory? dsp48's? slices?
>>
>> if memory, the easiest thing to do is cut back on
>> number of frequency channels.
>>
>> best,
>>
>> dan
>>
>>
>> On Mon, Oct 27, 2014 at 4:59 PM, Louis Dartez <louisdar...@gmail.com> wrote:
>>
>> Hi all,
>>
>> I have implemented a 4 channel 200MHz correlating spectrometer on a ROACH 1
>> using the Virtex5 SX95T. Currently, I am trying to get this same design to
>> compile and run on a LX110T chip instead. I know that the SX95T is much more
>> DSP intensive and more suitable for this sort of thing. During compilation
>> for the LX110T I ran into the expected issues with resources and trying to
>> use more than were available on the LX110T. I was wondering if anyone had
>> any tips/advice on how to go about this? Has anyone out there run into
>> similar situations? What knobs should I be able to tweak to get the design
>> to compile for a LX110T? Is it even possible?
>>
>> I’d be more than happy to share my mdl (slx) files if needed. :)
>>
>> Thanks in advance!
>> L
>>
>> Louis P. Dartez
>>
>> Graduate Research Assistant
>>
>> STARGATE
>>
>> Center for Advanced Radio Astronomy
>>
>> University of Texas at Brownsville
>>
>> (956) 372-5812
>>
>>
>>
>>
