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7142db28a8
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Author SHA1 Message Date
David Shah
7142db28a8 HeAP: Make HeAP placer optional 
A CMake option 'BUILD_HEAP' (default on) configures building of the
HeAP placer and the associated Eigen3 dependency.

Default for the iCE40 is SA placer, with --heap-placer to use HeAP

Default for the ECP5 is HeAP placer, as SA placer can take 1hr+ for
large ECP5 designs and HeAP tends to give better QoR. --sa-placer can
be used to use SA instead, and auto-fallback to SA if HeAP not built.

Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
1c824709e2 HeAP: Switching from TAUCS to Eigen 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:54 +00:00
David Shah
589b267a93 HeAP: Fix regression 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:54 +00:00
David Shah
8e4e03d980 HeAP: Fix occupancy count 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:54 +00:00
David Shah
6cf001d355 HeAP: Legaliser fixes 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
352f15e96b HeAP: Avoid getting stuck in legaliser ripup 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
70a6379bf6 HeAP: Chain support 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
87edf6305f ci: Add OpenBLAS to Dockerfile 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
2e2f44c82e HeAP: tidying up 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
fb02fc69c6 HeAP: Make strict legalisation wirelength driven where needed 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
8295f997ae HeAP: Use for ECP5 as well as iCE40 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
ba1e05f16b HeAP: Implement 'all+rotate' HeAP strategy 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
3dedc62593 HeAP: Weight arcs by criticality for timing-driven placement 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
05e9ae183d HeAP: Add multithreading 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
eb638c47b3 HeAP: fine tuning 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
2a0c117662 HeAP: Add performance counters 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
f3d9b45387 HeAP: Add SA-based iterative refinement after AP 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
0570cb7ae9 HeAP: Spreading working acceptably 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
030b02588b HeAP: Make cut-based spreading recursive 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
b483008cdf HeAP: Cut peturbation, binning and intra-bin linear spreading 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
8a791e8309 HeAP: Cut finder for spreading 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
4d2906378f HeAP: Region finder for spreading and strict legaliser 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
d1808c2594 HeAP: Fix how initial placement handles chains 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
d5cfd38179 HeAP: Successful solver convergance 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
ea56dc9d08 HeAP: Add TAUCS wrapper and integration 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
e36460b83e HeAP: Initial infrastructure 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
4cf8549f5c placer1: Legalise after reaching a diameter, not temperature 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
9cd5980d35 placer1: Add (currently-unused) option for fanout threshold for timing cost calc 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:54 +00:00
David Shah
bd0a33022b placer1: Implement non-timing-driven mode 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:54 +00:00
David Shah
1780f42b9a ice40: Add examples folder including floorplan example 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
0118ac00c4 placer1: Improve handling of regions 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
a8289b699f pycontainers: Implement __contains__ 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
493d6c3fb9 Add Python helper functions for floorplanning 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
ae33ff397f placer1: Consider regions during placement 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
ade72de02f placer1: Optimise for performance 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
0cb351df52 placer1: New temperature heuristic 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
222abb5be2 placer1: Encourage chain swaps 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:54 +00:00
David Shah
c926b273de placer1: Tweaks 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:54 +00:00
David Shah
23306c163f placer1: Allow chain position swaps after legalisation 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:54 +00:00
David Shah
3650c8a0e7 placer1: Tweaking temperature 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:54 +00:00
David Shah
0d80181c5e placer1: Make budget-based placement an option 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:28 +00:00
David Shah
a218c27305 placer1: Tuning 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:28 +00:00
David Shah
3938ea41fc placer1: Fix cost delta calculation 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:28 +00:00
David Shah
2ef2d2b2cb placer1: Bugfixes 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:28 +00:00
David Shah
f8f89cea71 placer1: Rework to use new criticality-based weighted cost function 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:00 +00:00
David Shah
3e40f0b9c3 placer1: New cost calculation infrastructure 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:29:59 +00:00
David Shah
0d064c05f9
Merge pull request #252 from YosysHQ/tristate_json 
json: Fix inputs directly driving inouts
 2019-03-21 12:36:11 +00:00
David Shah
85bff66393
Merge pull request #251 from YosysHQ/ice40-u4k-fix 
ice40: Fix u4k in external chipdb mode.
 2019-03-20 17:26:51 +00:00
David Shah
997a66791e json: Fix inputs directly driving inouts 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-20 16:07:47 +00:00
Marcin Kościelnicki
1060810d7a ice40: Fix u4k in external chipdb mode. 
Signed-off-by: Marcin Kościelnicki <marcin@symbioticeda.com>
 2019-03-19 15:23:43 +01:00