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263-0007-00L-Advanced-Syste…/scripts/roofline.py
T
[Quy Anh] «Elliot» Nguyen b86c856e08 Inlining + Reorganization + Roofline
2026-05-19 23:17:44 +02:00

160 lines
3.3 KiB
Python

import matplotlib.pyplot as plt
from matplotlib.ticker import FuncFormatter
import numpy as np
ram_beta = 1.91
l1d_l2_beta = 64
l3_beta = 32
pi_scalar = 6.0
pi_vector = 48.0
I_vals = np.logspace(-50, 8, 500, base=2)
plt.figure(figsize=(10, 7))
plt.gca().set_facecolor('lightgrey')
plt.plot(I_vals, ram_beta * I_vals, 'k-', label='_nolegend_')
plt.plot(I_vals, l1d_l2_beta * I_vals, 'k-', label='_nolegend_')
plt.plot(I_vals, l3_beta * I_vals, 'k-', label='_nolegend_')
ram_bound_x_pos = 0.25
ram_bound_y_pos = ram_beta * ram_bound_x_pos + 0.175
plt.text(
ram_bound_x_pos,
ram_bound_y_pos,
f'Read β mem. ({ram_beta} bytes/cycle)',
color='black',
va='center',
ha='center',
fontsize=8,
rotation=20.5,
)
l1d_l2_bound_x_pos = 0.25
l1d_l2_bound_y_pos = l1d_l2_beta * l1d_l2_bound_x_pos + 3.5
plt.text(
l1d_l2_bound_x_pos,
l1d_l2_bound_y_pos,
f'Read β L1D/L2 ({l1d_l2_beta} bytes/cycle)',
color='black',
va='center',
ha='center',
fontsize=8,
rotation=20.5,
)
l3_bound_x_pos = 0.375
l3_bound_y_pos = l3_beta * l3_bound_x_pos + 3.5
plt.text(
l3_bound_x_pos,
l3_bound_y_pos,
f'Read β L3 ({l3_beta} bytes/cycle)',
color='black',
va='center',
ha='center',
fontsize=8,
rotation=20.5,
)
plt.plot(I_vals, [pi_scalar] * len(I_vals), 'k-', label='_nolegend_')
plt.text(
85,
pi_scalar + 1.5,
f'Peak π seq. ({pi_scalar} flops/cycle)',
color='black',
va='center',
ha='center',
fontsize=8,
)
plt.plot(I_vals, [pi_vector] * len(I_vals), 'k-', label='_nolegend_')
plt.text(
85,
pi_vector + 12.5,
f'Peak π par. ({pi_vector} flops/cycle)',
color='black',
va='center',
ha='center',
fontsize=8,
)
def fraction_formatter(x, _pos):
if x == 0:
return '0'
log2_x = np.log2(x)
if abs(log2_x - round(log2_x)) < 1e-6:
exponent = int(round(log2_x))
if exponent < 0:
denominator = 2**(-exponent)
return f'{1/denominator:.2f}'
elif exponent == 0:
return '1'
else:
return str(int(x))
return f'{x:.2f}'
formatter = FuncFormatter(fraction_formatter)
plt.xscale('log', base=2)
plt.yscale('log', base=2)
plt.gca().xaxis.set_major_formatter(formatter)
plt.gca().yaxis.set_major_formatter(formatter)
plt.xlabel('Operational Intensity [flops/byte]', fontsize=10)
plt.title("""Roofline Plot for the Social Force Model
CPU: AMD Ryzen AI 7 350 w/ Radeon 860M @ 2 GHz
Compiler: g++ (Debian 15.2.0-16) 15.2.0
Command: ./main 100 10000
Performance [flops/cycle]""",
loc='left',
size=10)
plt.scatter([53], [0.0936126],
c='black',
marker='o',
edgecolors='black',
label='baseline (-O0)')
plt.text(
53,
0.0936126 - 0.03,
f'0.09 flops/cycle',
color='black',
va='center',
ha='center',
fontsize=8,
)
plt.scatter([53], [0.627801],
c='black',
marker='s',
edgecolors='black',
label='baseline (-O3 -march=native)')
plt.text(
53,
0.627801 - 0.2,
f'0.63 flops/cycle',
color='black',
va='center',
ha='center',
fontsize=8,
)
plt.legend(loc='lower right',
fontsize=11,
frameon=True,
facecolor='white',
edgecolor='black')
plt.grid(True, which="both", ls="-", color='white', alpha=0.8, linewidth=1)
plt.xlim(0.05, 200)
plt.ylim(0.0005, 100)
plt.tight_layout()
plt.show()