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================================================================= Scaffold Compiler Working Group https://github.com/epiqc/ScaffCC Scripts README Document ================================================================= Contents: ========= example scripts to test some of ScaffCC's functionalities. please direct any questions/feedback to email@example.com Important Note: =============== The assumption in these scripts is that they are separated from the ScaffCC directory by only one directory level. Therefore let the scripts remain in ScaffCC/scripts ================================================================= $ ./gen-ll.sh ------------- Lowers .scaffold source file to .ll file (intermediary LLVM format). Creates <algorithm>.ll The .ll file is the main file in LLVM on which all transformations, optimizations and analysis are performed. NB: In general, to run a pass in LLVM, you invoke the opt program as follows: build/Release+Asserts/bin/opt -S -load build/Release+Asserts/lib/Scaffold.so <desired_pass_name> <input_ll_file> > <output_ll_file> 2> <log_file> (These scripts basically automate the above command for several passes) $ ./gen-cp.sh ------------- Finds critical path information for several different flattening thresholds by doing the following: 1- Finding module sizes using the ResourceCount2 pass. 2- Flattening modules based on the found module sizes and the requested threshold. flattening_thresh.py: divides modules into different buckets based on their size, to be used for flattening decision purposes. 3- Finds length of critical path, in terms of number of operations on it. Look for the number in front of "main" in the output. $ ./gen-scheds.sh ----------------- This is the wrapper script around all the different schedulers. Generates communication-unaware Multi-SIMD schedules and commnication-aware LPFS, RCP and SS scheudles. Options: K=number of SIMD regions / D=capacity of each region Calls the following scripts: $ ./regress.sh -------------- Runs the 3 different communication-aware schedulers, LPFS, RCP, SS, with different scheduler configurations. Look in ./sched.pl for configuration options. For example using -m gives metrics only, while -s outputs entire schedule. $ ./sched.pl ------------ The main scheduler code for LPFS and RCP. $ ./leaves.pl ------------- Finds leaf (i.e. flat) modules. $ ./comm_aware.pl ----------------- Applies the communication penalty to timesteps. All output files are placed in a new directory to avoid cluttering.
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