Full global placement (all three)

Full global placement. The real job: satisfy all three objectives at once. Place the cells so:

• Timing closes - the bold critical path stays under its budget (keep those cells tight and short).
• Density under limit - no tile on the heat map goes over the limit (the cells cannot all pile up).
• Wirelength under target - the total wire stays under target (connected cells want to be close).

They pull against each other: clustering for wirelength and timing drives the density up, while spreading for density lengthens the wires. Find the balance that clears all three, then Submit design.