Performance Overview

Here, we will example the performance of FNGS as a function of time on several datasets. These investigations were performed on a 4 core machine (4 threads) with a 4.0 GhZ processor.

BNU1



In [40]:

    
%matplotlib inline
import numpy as np
import re
import matplotlib.pyplot as plt

def memory_function(infile, dataset):
    with open(infile, 'r') as mem:
        lines = mem.readlines()

    testar = np.asarray([line.strip() for line in lines]).astype(float)/1000

    fig=plt.figure()
    ax = fig.add_subplot(111)
    ax.plot(range(0, testar.shape[0]), testar - min(testar))
    ax.set_ylabel('memory usage in GB')
    ax.set_xlabel('Time (s)')
    ax.set_title(dataset + ' single subject Memory Usage; max = %.2f GB; mean = %.2f GB' % (max(testar), np.mean(testar)))
    return fig

def cpu_function(infile, dataset):
    with open(infile, 'r') as mem:
        lines = mem.readlines()

    testar = np.asarray([line.strip() for line in lines]).astype(float)

    fig=plt.figure()
    ax = fig.add_subplot(111)
    ax.plot(range(0, testar.shape[0]), testar)
    ax.set_ylabel('CPU usage (%)')
    ax.set_xlabel('Time (s)')
    ax.set_title(dataset + ' single subject Processor Usage; max = %.1f per; mean = %.1f per' % (max(testar), np.mean(testar)))
    return fig

def disk_function(infile, dataset):
    with open(infile, 'r') as mem:
        lines = mem.readlines()

    testar = np.asarray([line.strip() for line in lines]).astype(float)/1000000

    fig=plt.figure()
    ax = fig.add_subplot(111)
    ax.plot(range(0, testar.shape[0]), testar - min(testar))
    ax.set_ylabel('Disk usage GB')
    ax.set_xlabel('Time (s)')
    ax.set_title(dataset + ' single subject Disk Usage; max = %.1f GB; mean = %.1f GB' % (max(testar), np.mean(testar)))
    return fig


memfig = memory_function('BNU_sub/output_single/membnu_single.txt', 'BNU 1')
diskfig = disk_function('HNU_sub/output_single/diskhnu_single.txt', 'BNU 1')
cpufig = cpu_function('BNU_sub/output_single/cpubnu_single.txt', 'BNU 1')
memfig.show()
diskfig.show()
cpufig.show()

HNU Dataset



In [39]:

    
memfig = memory_function('HNU_sub/output_single/memhnu_single.txt', 'HNU 1')
diskfig = disk_function('HNU_sub/output_single/diskhnu_single.txt', 'HNU 1')
cpufig = cpu_function('HNU_sub/output_single/cpuhnu_single.txt', 'HNU 1')
memfig.show()
diskfig.show()
cpufig.show()

DC1 Dataset



In [38]:

    
memfig = memory_function('DC_sub/output_single/memsingle.txt', 'DC 1')
diskfig = disk_function('DC_sub/output_single/disksingle.txt', 'DC 1')
cpufig = cpu_function('DC_sub/output_single/cpusingle.txt', 'DC 1')
memfig.show()
diskfig.show()
cpufig.show()



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