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Compilation flows #1599

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merged 2 commits into from
Mar 19, 2024
Merged

Compilation flows #1599

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abd0f65
Updated compilation flows
alaindargelas Mar 19, 2024
0703a71
Updated compilation flows
alaindargelas Mar 19, 2024
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32 changes: 22 additions & 10 deletions etc/init/flow.tcl
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Original file line number Diff line number Diff line change
Expand Up @@ -8,18 +8,21 @@
# ------------------------------------------
# Area driven compilation flow
proc area_flow { } {
analyze
synthesize area
packing
place
route
sta
power
}

# ------------------------------------------
# Congestion driven compilation flow
# Two options: "uniform" for uniformely congested high utilization designs
# "hotspot" for hotspots of congestion in moderately utilized designs
proc congestion_flow { {congestion_type "uniform"} } {
analyze
synthesize delay
packing_options -clb_packing timing_driven
if {$congestion_type == "uniform"} {
Expand All @@ -35,6 +38,7 @@ proc congestion_flow { {congestion_type "uniform"} } {
place
route
sta
power
}

# ------------------------------------------
Expand All @@ -47,6 +51,7 @@ proc congestion_flow { {congestion_type "uniform"} } {
# The result is then passed through the simulated annealing (SA) placer.
# - 'default': Use VPR's default initial placer (default).
proc timing_flow { {initial_placer_type "default"} } {
analyze
synthesize delay
packing_options -clb_packing timing_driven
if {$initial_placer_type == "analytic"} {
Expand All @@ -56,22 +61,29 @@ proc timing_flow { {initial_placer_type "default"} } {
place
route
sta
power
}

# ------------------------------------------
# Routability driven compilation flow. This proc accepts two optional arguments:

# Routability driven compilation flow. This proc accepts three optional arguments:
# - number_of_molecules_in_partition: Average number of molecules in each cluster (default is 200).
# - hmetisPath: The path to the hmetis executable (default is "~/bin/hmetis").
proc routability_flow { {number_of_molecules_in_partition 200} {hmetisPath "~/bin/hmetis"} } {
if {![file exists $hmetisPath]} {
puts "The 'hmetis' binary file does not exist at: $hmetisPath"
exit 1
}
# - congestion: medium, high
# - initial VPR placement constraints file
proc routability_flow { {number_of_molecules_in_partition 200} {congestion "medium"} {vpr_constraints_file ""} } {
analyze
synthesize delay
pnr_options --use_partitioning_in_pack on --number_of_molecules_in_partition $number_of_molecules_in_partition
pnr_options --hmetis_path $hmetisPath --target_ext_pin_util clb:0.6 dsp:1.0,1.0 bram:1.0,1.0 0.8
set options ""
append options "--use_partitioning_in_pack on --number_of_molecules_in_partition $number_of_molecules_in_partition "
if [file exists $vpr_constraints_file] {
append options "--read_vpr_constraints $vpr_constraints_file "
}
if {$congestion == "high"} {
append options "--target_ext_pin_util clb:0.6 dsp:1.0,1.0 bram:1.0,1.0 0.8 "
}
pnr_options $options
packing
place
route
sta
power
}
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