kicad-developers team mailing list archive

[Tomasz Wlostowski <tomasz.wlostowski@xxxxxxx>]

On 19/11/17 16:18, Heikki Pulkkinen wrote:
> Hi,
> 
> You can dowload it from:
> 
> https://forum.kicad.info/t/testbench-board-for-kicad/1127
> 
> I do some more test, and found that new algo would be very fast with my
> parallell zone filling algo, but it get stuck after filled all 128 pours
> below 10 seconds and started to removing insulated areas. Other boards
> just works fine. Maybe it is too good to be true to get results like that.

It's a board that I codesigned a long time ago (the White Rabbit Switch
v3.0) and crudely converted from Altium to Kicad as a performance test.
It's a very pathological test case, including split power planes
converted to many polygons with extremely complex outlines and lots of
tracks not centered on pads/vias (which Altium frequently does).

It takes approx 3 mins to refill all zones on my machine ( i7-4700MQ, 16
GB RAM).

For comparison, two rather complex designs done from scratch in Kicad
take much less time to refill.
- A64-Olinuxino : 17 s
- cible_ccd (JP's project) : 21 s

Heikki, I'm interested in your parallel zone filling algorithm. Do you
have it in your Github?

Tom
> 
> Rgards
> 
> Heikki
> 
> 
> 
> On Sun, Nov 19, 2017 at 4:39 PM, Tomasz Wlostowski
> <tomasz.wlostowski@xxxxxxx <mailto:tomasz.wlostowski@xxxxxxx>> wrote:
> 
>     On 19/11/17 15:35, Heikki Pulkkinen wrote:
>     > Hi,
>     >
>     >
>     > Sorry to tell that, but it seems that new connectivity algorithm is slow
>     > with bigger boards. Doing some tests I noticed that  new algo is
>     > speeding recalculating ratsnest, but it costs manual routing and
>     > dragging performance. This video shows how big difference is. And that
>     > board is just nothing big.
>     >
>     > Zones filling, that was really big difference. Old algo below 3 mins.
>     > New one almost 17  minutes. Old algo, has my parallelism algo in zone
>     > filling, but it is doing it twice, with 2 core processor, and most of
>     > the time it is calculating ratsnest before and after filling.
>     >
>     >
>     >
>     Heikki,
> 
>     Can you send us (privately) the board that shows the drops in
>     performance? I'd greatly like to optimize it, with your help if
>     possible!
> 
>     Best,
>     Tom
> 
>     PS. What's the CPU/RAM of your PC?
> 
> 
> 
>     > Regards
>     >
>     > Heikki
>     >
>     >
>     > https://youtu.be/JS57hRyzmdg
>     >
>     >
>     >
>     >
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