Usage:

Global Placer


FastPlace3.0_Linux_GP [options] <benchmark_dir> <aux_file> <output_dir>

    <benchmark_dir>             Path to the directory containing the benchmark files
    <aux_file>                  Bookshelf format auxiliary file
    <output_dir>                Path to the output directory for the global placement
                                and detailed placement files

    OPTIONS:
      -net_weights              Perform net weighting using the .wts file
                                (default weight for all nets = 1.0)

      -target_density <value>   Density target for the placement
                                (default value = 1.0)
  
      -window <value>           Window Height/Width (in number of rows) for target_density calculation
                                (default value = 5 circuit rows)

Detailed Placer


FastPlace3.0_Linux_DP [options] <benchmark_dir> <aux_file> <input_dir> <input_fileName>

    <benchmark_dir>             Path to the directory containing the benchmark files
    <aux_file>                  Bookshelf format auxiliary file
    <input_dir>                 Path to the input directory for the global placement file
                                (detailed placement file will be stored in this directory)    
    <input_fileName>            Global Placement file name
    
    OPTIONS:
       -legalize                Legalize the global placement before detailed placement
                                (default assumes a legalized global placement)

       -noDp                    No Detailed Placement. Stop after Legalization.
                                (default performs detailed placement)

       -fast                    Less aggressive detailed placement
                                (default is slow mode which is more aggressive)

       -noFlipping              Do not perform standard-cell flipping within rows
                                (default performs flipping of cells)

       -target_density <value>  Density target for the placement
                                (default value = 1.0)

       -window <value>          Window Height/Width (in number of rows) for target_density calculation
                                (default value = 5 circuit rows)


Or run FastPlace3.0_Linux32_GP or FastPlace3.0_Linux32_DP with no arguments to display usage.

Output Files:

Global Placement:       circuit_FP_gp.pl
Legalized Placement:  circuit_FP_lg.pl
Detailed Placement:    circuit_FP_dp.pl

Examples: (Assuming that the path to the executable has been defined)

1) Default usage for most benchmarks:

     FastPlace3.0_Linux32_GP benchmarks/adaptec1 adaptec1.aux results
     FastPlace3.0_Linux32_DP -legalize benchmarks/adaptec1 adaptec1.aux results adaptec1_FP_gp.pl
   

      - Benchmark files for circuit "adaptec1" are present under the directory "benchmarks/adaptec1"
      - Output needs to be put in directory "results"
      - Global placement file name is "adaptec1_FP_gp.pl"
      - Legalize the global placement before performing detailed placement
      - Use slow-mode for detailed placement and perform standard-cell flipping

2) For running the ISPD-2006 placement contest benchmarks:

     FastPlace3.0_Linux32_GP -target_density <value> -window 10 benchmarks/newblue1 newblue1.aux results
     FastPlace3.0_Linux32_DP -legalize -target_density <value> -window 10 benchmarks/newblue1 newblue1.aux results newblue1_FP_gp.pl
   

      - Where <value> is the appropriate target_density value for the circuit
      - Height/Width of the density bin window = 10 circuit rows for the ISPD 2006 contest

3) To perform net weighting:

     FastPlace3.0_Linux32_GP -net_weights <benchmark_dir> <aux_file> <output_dir>
   

      - Read the .wts file to get the weights for different nets
      - Convention for the .wts file:
          (a) Standard header (UCLA wts 1.0)
          (b) Followed by, for each net:
                net_name    net_weight

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Last modified: Dec 28, 2006