> a new workstation with 16 cores and 192GB of RAM memory. 

That sounds like a really beefy machine! Unfortunately, the Xilinx tools don't 
multi-thread very well. We've found it better to have fewer cores that run at 
higher clock rates. The modern trend for many cores clocked at lower speeds 
isn't helping our cause.

Hopefully Vivado's a bit better. Anyone got any experience with large designs 
in Vivado for comparison? I played with it briefly last year and it seemed much 
faster. I think this is going to be important for ROACH-3.

Jason

> 2014-04-12 20:24 GMT+02:00 Matt Strader <[email protected]>:
>> Thanks, Glenn.  Increasing the matlab java heap did the trick.    And
>> thanks, Ryan, for your tip.  I may have to do that next.
>> 
>> Matt
>> 
>> 
>> On Fri, Apr 11, 2014 at 6:46 PM, Ryan Monroe <[email protected]>
>> wrote:
>>> 
>>> If you're filling a roach 2, you'll have to use the black box trick (on a
>>> phone so I can't find it).  split the design into 2-4 equal parts on terms
>>> of resources used!
>>> 
>>> On Apr 11, 2014 6:34 PM, "G Jones" <[email protected]> wrote:
>>>> 
>>>> Did you increase your matlab java heap? Search the mailing list archives,
>>>> sounds like it could be the culprit.
>>>> 
>>>> Glenn
>>>> 
>>>> On Apr 11, 2014 9:31 PM, "Matt Strader" <[email protected]>
>>>> wrote:
>>>>> 
>>>>> Hi all,
>>>>> 
>>>>> I have a rather large design I'm trying to compile for Roach2.
>>>>> Compilation never gets past xst in System Generator, but doesn't give any
>>>>> error.  Progress seems to halt while trimming pins, stopping in the middle
>>>>> of printing a warning, such as
>>>>> "WARNING:Xst:1710 - FF/Latch <fft_stage_6_".
>>>>> Then cpu usage drops to near zero, and it just hangs there.  It never
>>>>> takes more than 16% of my RAM, so it's not lagging from lack of memory.
>>>>> 
>>>>> If I cut a big chunk out of my design, it compiles successfully.
>>>>> 
>>>>> Any suggestions?
>>>>> 
>>>>> Thanks,
>>>>> Matt Strader
>>>>> UCSB Physics Dept.
>> 
>> 
> 
> 
> 
> -- 
> Andrea Mattana
> 
> I.N.A.F. - Istituto di Radioastronomia
> Radiotelescopi di Medicina
> Via Fiorentina, 3513 - 40059 Medicina (Bo)
> Tel. 051/6965834      Fax. 051/6965810
> 


Reply via email to