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Diffstat (limited to 'sem4/hpp/miniproject/runner.py')
-rw-r--r-- | sem4/hpp/miniproject/runner.py | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/sem4/hpp/miniproject/runner.py b/sem4/hpp/miniproject/runner.py new file mode 100644 index 0000000..1565bd5 --- /dev/null +++ b/sem4/hpp/miniproject/runner.py @@ -0,0 +1,82 @@ +#!/usr/bin/env python3 + +import matplotlib.pyplot as plt +import argparse +import os.path as path +import numpy as np +import time +from pathlib import Path +from PIL import Image +import warnings +import h5py + +# Many of the implementations overflow some of the values +# This creates warnings which can be ignored +warnings.simplefilter("ignore") + +# Implementations +impls = ["naive", "optimised", "multiproc"] + +parser = argparse.ArgumentParser(description="runs the different mangelbrot implementations") +parser.add_argument("impl", help="which implementation", default='all', choices=impls + ["all"], nargs='*') +parser.add_argument("--numreal", "--nr", type=int, help="number of real numbers", default=500) +parser.add_argument("--numimag", "--ni", type=int, help="number of imaginary numbers", default=500) +parser.add_argument("--iterations", "-i", type=int, help="mangelbrot iterations", default=100) +parser.add_argument("--threshold", "-t", type=int, help="mangelbrot threshold", default=2) +parser.add_argument("--outputfolder", "-o", help="output folder", default='.') +parser.add_argument("--createpng", help="create png images", action="store_true") +parser.add_argument("--skipz", "-z", help="do not export z", action="store_true") + +args = parser.parse_args() + +# If no implementations are specified run all +if args.impl == "all" or "all" in args.impl: + args.impl = impls + +def runtest(mangel, name): + """ + Run test on specified mangel function. + `mangel` function must be of form + + ``` + mangel(pre, pim, T, l) + ``` + + Uses the global args for options. + """ + + # Run mangel and measure runtime + start = time.time() + (rs, z) = mangel(args.numreal, args.numimag, args.threshold, args.iterations, not args.skipz) + end = time.time() + + plt.imshow(rs, cmap=plt.cm.hot, vmin=0, vmax=1) + plt.savefig(path.join(args.outputfolder, name + ".pdf")) + if args.createpng: + # Convert o simple b/w image + formatted = (rs * 255).astype('uint8') + + img = Image.fromarray(formatted, mode='L') + img.save(path.join(args.outputfolder, name + ".png")) + + # Save data as h5py + h5file = h5py.File(path.join(args.outputfolder, name + ".h5"), "w") + h5file.create_dataset("result", data=rs) + if not args.skipz: + h5file.create_dataset("z", data=z) + h5file.close() + + return end - start + +# Make sure output folder exists +Path(args.outputfolder).mkdir(parents=True, exist_ok=True) + +print(f"Running implementations {args.impl}") + +for impl in args.impl: + # Import module + m = __import__(impl) + + print(f"Running {impl}") + dur = runtest(m.mangel, impl) + print(f"{impl} took {dur} seconds") |