Jaltantra-Code-and-Scripts

NOTE: This has been moved to https://github.com/jaltantra/Jaltantra_loop

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Code and Scripts written for Jaltantra Project

• Shared Drive Folder
  • Time vs Objective Function Value
• Programs/Scripts
  • auto_run_model_and_data_in_parallel.py - Automatically execute solver for multiple model and data files while monitoring the system resources
  • htop_monitor_writter.sh - Monitor system resource usage using htop and save them to a file at regular interval
    • htop_monitor_reader.sh - Read the output generated by the above monitoring program
  • output_table_extractor_baron.sh - Extract important values from the output generated by Baron solver
  • output_table_extractor_octeract.sh - Extract important values from the output generated by Octeract solver
  • CalculateNetworkCost.py - Automatically execute multiple Solvers and multiple Models on input graph/network (i.e. data/testcase file) and return the best solution
    • python3 CalculateNetworkCost.py -p Files/Data/m1_m2/d9_HG_SP_4_2.dat --solver-models 'baron 1 2' 'octeract 1 2' --time '0:5:0' --debug
    • To clean up the temporary file created by this program in the /tmp directory, execute the below commands

      # Make sure that the below GLOB does not match any other important file or
      # directory created by someone other than CalculateNetworkCost.py
      # And, do not perform this clean up when any instance of CalculateNetworkCost.py is running
      rm -r /tmp/pid_* /tmp/at*octsol /tmp/baron_tmp*

  • CalculateNetworkCost_ExtractResultFromAmplOutput.py - Extract the following values from stdout/stderr logs of AMPL + Solver
    1. head for each node
    2. flow for each arc/edge
    3. pipe ID and pipe length for each arc/edge

Overview

Original thing	Similar to
AMPL	Shell
Solver	Java bytecode interpreter
Model file	Algorithm / Java function
Network/Data file	Testcases / Input / Function parameters

• AMPL is like shell because we use it to define variables pointing to data file and model file, and then execute the solver on them. Similar to

  solver --data-file DATA_FILE_PATH --model-file MODEL_FILE_PATH --solver-parameter1 value1 --solver-parameter2 value2 ...

• Solver is like bytecode interpreter because multiple bytecode interpreter exists and they work in their own way ( Oracle interpreter, OpenJDK interpreter, Kotlin interpreter)
• Model file is like an algorithm
• Network/Data file has Graph data

AMPL Commands

• AMPL execution commands are present in Files/main.run

Model Files

• Present at Files/Models
• These are written in R language
• According to the AMPL Dev User Guide, these files should have .mod file extension. However, we have used .R so that we get syntax highlighting in text editors like VSCode and SublimeText

Unique Name	Original Name
m1	Basic
m2	Basic2 Basic2_v2
m3	Descrete Segment
m4	Parallel Links

Data Files

• For model m1 and m2, data files are in Files/Data/m1_m2
• For model m3 and m4, data files are in Files/Data/m3_m4
• According to the AMPL Dev User Guide, these files should have .dat file extension. However, we have used .R so that we get syntax highlighting in text editors like VSCode and SublimeText

Unique Name	Original Name
d1	Two Loop
d2	Cycle Hanoi
d3	Double Hanoi
d4	Triple Hanoi
d5	Taichung
d6	HG_SP_1_4
d7	HG_SP_2_3
d8	HG_SP_3_4
d9	HG_SP_4_2
d10	HG_SP_5_5
d11	HG_SP_6_3