Placer class #2813
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Placer class #2813
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soheilshahrouz
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Nov 20, 2024
| /* Allocated here because it goes into timing critical code where each memory allocation is expensive */ | ||
| IntraLbPbPinLookup pb_gpin_lookup(device_ctx.logical_block_types); | ||
| //Enables fast look-up of atom pins connect to CLB pins | ||
| ClusteredPinAtomPinsLookup netlist_pin_lookup(cluster_ctx.clb_nlist, atom_ctx.nlist, pb_gpin_lookup); |
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@vaughnbetz
pb_gpin_lookup and netlist_pin_lookup are initialized after the placement timer starts in line 215. Is their initialization times intentionally included in the total placement time?
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titan_quick_qor
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Hi @soheilshahrouz these changes look great to me! I left some minor comments. I am excited to see this PR merged!
| costs.cost, costs.bb_cost, costs.timing_cost, placer_opts.place_chan_width); | ||
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| // Draw the initial placement | ||
| update_screen(ScreenUpdatePriority::MAJOR, msg_.data(), PLACEMENT, timing_info); |
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Why is drawing code in the logging utility? Was this intentional? Or is this just printing the initial placement stats to the screen? If it is the latter, I recommend updating the comment above this line.
…once in header files
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Add
Placerclass that encapsulates all objects and variable that are placement instance specific. Shared objects like delay model are still constructed outside this class and shared across allPlacerinstances.Don't look at the code yet; it's a mess! :)