Module: Pwrake::Parallelism

Defined in:
lib/pwrake/report/parallelism.rb

Class Method Summary collapse

Class Method Details

.count_start_end_by_pattern(csvtable, pattern) ⇒ Object 



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# File 'lib/pwrake/report/parallelism.rb', line 233

def count_start_end_by_pattern(csvtable, pattern)
  h = Hash.new
  start_time = nil

  csvtable.each do |row|
    command = row['command']
    if command == 'pwrake_profile_start'
      start_time = Time.parse(row['start_time'])
    elsif command == 'pwrake_profile_end'
      t = Time.parse(row['start_time']) - start_time
      h.values.each do |a|
        a << [t,0]
      end
    elsif start_time
      cmd = get_command_key(command, pattern)
      h[cmd] ||= []
      t = Time.parse(row['start_time']) - start_time
      h[cmd] << [t,+1]
      t = Time.parse(row['end_time']) - start_time
      h[cmd] << [t,-1]
    end
  end

  h.each do |k,a|
    a.sort!{|x,y| x[0]<=>y[0]}
  end
  h
end

.count_start_end_from_csv(file) ⇒ Object 



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# File 'lib/pwrake/report/parallelism.rb', line 6

def count_start_end_from_csv(file)
  a = []
  start_time = nil

  CSV.foreach(file,:headers=>true) do |row|
    if row['command'] == 'pwrake_profile_start'
      start_time = Time.parse(row['start_time'])
    elsif row['command'] == 'pwrake_profile_end'
      t = Time.parse(row['start_time']) - start_time
      a << [t,0]
    elsif start_time
      t = Time.parse(row['start_time']) - start_time
      a << [t,+1]
      t = Time.parse(row['end_time']) - start_time
      a << [t,-1]
    end
  end

  a.sort{|x,y| x[0]<=>y[0]}
end

.count_start_end_from_csv_table(csvtable) ⇒ Object 



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# File 'lib/pwrake/report/parallelism.rb', line 27

def count_start_end_from_csv_table(csvtable)
  a = []
  start_time = nil

  csvtable.each do |row|
    if row['command'] == 'pwrake_profile_start'
      start_time = Time.parse(row['start_time'])
    elsif row['command'] == 'pwrake_profile_end'
      t = Time.parse(row['start_time']) - start_time
      a << [t,0]
    elsif start_time
      t = Time.parse(row['start_time']) - start_time
      a << [t,+1]
      t = Time.parse(row['end_time']) - start_time
      a << [t,-1]
    end
  end

  a.sort{|x,y| x[0]<=>y[0]}
end

.exec_density(a) ⇒ Object 



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# File 'lib/pwrake/report/parallelism.rb', line 48

def exec_density(a)
  reso = 0.1
  delta = 1/reso
  t_end = (a.last)[0]
  n = (t_end/reso).to_i + 1
  i = 0
  t_next = reso
  d = (n+1).times.map{|i| [reso*i,0]}
  a.each do |x|
    while d[i+1][0] <= x[0]
      i += 1
    end
    if x[1] == 1
      d[i][1] += delta
    end
  end
  d
end

.get_command_key(s, pattern) ⇒ Object 



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# File 'lib/pwrake/report/parallelism.rb', line 213

def get_command_key(s, pattern)
  pattern.each do |cmd,regex|
    if regex =~ s
      return cmd
    end
  end
  if /\(([^()]+)\)/ =~ s
    s = $1
  end
  a = s.split(/;/)
  a.each do |x|
    if /^\s*(\S+)/ =~ x
      k = $1
      next if k=='cd'
      return k
    end
  end
  nil
end

.plot_parallelism(file) ⇒ Object 



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# File 'lib/pwrake/report/parallelism.rb', line 67

def plot_parallelism(file)
  a = count_start_end_from_csv(file)
  return if a.size < 4

  density = exec_density(a)

  base = file.sub(/\.csv$/,"")
  fpara = base+"_para.dat"

  n = a.size
  i = 0
  y = 0
  y_max = 0

  File.open(fpara,"w") do |f|
    begin
      t = 0
      y_pre = 0
      n.times do |i|
        if a[i][0]-t > 0.001
          f.printf "%.3f %d\n", t, y_pre
          t = a[i][0]
          f.printf "%.3f %d\n", t, y
        end
        y += a[i][1]
        y_pre = y
        y_max = y if y > y_max
      end
    rescue
      p a[i]
    end
  end

  t_end = (a.last)[0]

  IO.popen("gnuplot","r+") do |f|
    f.puts "
set terminal png
set output '#{base}.png'
#set rmargin 10
set title '#{base}'
set xlabel 'time (sec)'
set ylabel 'parallelism'

set arrow 1 from #{t_end},#{y_max*0.5} to #{t_end},0 linecolor rgb 'blue'
set label 1 at first #{t_end},#{y_max*0.5} right \"#{t_end}\\nsec\" textcolor rgb 'blue'

plot '#{fpara}' w l axis x1y1 title 'parallelism'
"
  end

  #puts "Parallelism plot: #{base}.png"
end

.plot_parallelism2(csvtable, base) ⇒ Object 



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# File 'lib/pwrake/report/parallelism.rb', line 122

def plot_parallelism2(csvtable, base)
  a = count_start_end_from_csv_table(csvtable)
  return if a.size < 4

  density = exec_density(a)

  fimg = base+'/parallelism.png'

  n = a.size
  i = 0
  y = 0
  y_max = 0

  para = []
  begin
    t = 0
    y_pre = 0
    n.times do |i|
      if a[i][0]-t > 0.001
        para.push "%.3f %d" % [t, y_pre]
        t = a[i][0]
        para.push "%.3f %d" % [t, y]
      end
      y += a[i][1]
      y_pre = y
      y_max = y if y > y_max
    end
  rescue
    p a[i]
  end

  t_end = (a.last)[0]

  if system("which gnuplot >/dev/null 2>&1")
  IO.popen("gnuplot","r+") do |f|
    f.print "
set terminal png
set output '#{fimg}'
#set rmargin 10
set title '#{base}'
set xlabel 'time (sec)'
set ylabel 'parallelism'
set y2tics
set ytics nomirror
set y2label 'exec/sec'

set arrow 1 from #{t_end},#{y_max*0.5} to #{t_end},0 linecolor rgb 'blue'
set label 1 \"#{t_end}\\nsec\" at first #{t_end},#{y_max*0.5} right front textcolor rgb 'blue'

plot '-' w l axis x1y1 title 'parallelism', '-' w l axis x1y2 title 'exec/sec'
"
    para.each do |x|
      f.puts x
    end
    f.puts "e"

    density.each do |t,d|
      f.puts "#{t} #{d}"
    end
  end
  end

  #puts "Parallelism plot: #{fimg}"
  fimg
end

.plot_parallelism_by_host(csvtable, base) ⇒ Object 



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# File 'lib/pwrake/report/parallelism.rb', line 341

def plot_parallelism_by_host(csvtable,base)
  fpng = base+"/para_host.png"
  data = read_time_by_host_from_csv(csvtable)
  return fpng if data.size == 0

  grid = []
  hosts = data.keys.sort
  hosts.each do |h|
    a = timeline_to_grid(data[h])
    grid << a
  end

  if system("which gnuplot >/dev/null 2>&1")
  IO.popen("gnuplot","r+") do |f|
    f.puts "
set terminal png
set output '#{fpng}'
#set rmargin 7
set lmargin 16
set pm3d map
set pm3d corners2color c1
set xlabel 'time (sec)'
set ytics nomirror
set ticslevel 0
set format y ''
"
    hosts.each_with_index do |h,i|
      if /^([^.]+)\./ =~ h
        h = $1
      end
      f.puts "set ytics add ('#{h}' #{i+0.5})"
    end
    f.puts "splot '-' using 2:1:3 with pm3d title ''"

    grid.each_with_index do |a,j|
      a.each do |x|
        f.printf "%g %g %d\n", j, x[0], x[1]
      end
      f.printf "\n"
    end
    j = grid.size
    grid.last.each do |x|
      f.printf "%g %g %d\n", j, x[0], x[1]
    end
    f.printf "e\n"
  end
  end
  fpng
end

.plot_parallelism_by_pattern(csvtable, base, pattern) ⇒ Object 



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# File 'lib/pwrake/report/parallelism.rb', line 262

def plot_parallelism_by_pattern(csvtable, base, pattern)
  y_max = 0
  t_end = 0
  para = {}
  t_pat = count_start_end_by_pattern(csvtable, pattern)
  t_pat.each do |cmd,a|
    n = a.size
    i = 0
    y = 0
    para[cmd] = dat = []
    begin
      t = 0
      y_pre = 0
      n.times do |i|
        if a[i][0]-t > 0.001
          dat.push "%.3f %d" % [t, y_pre]
          t = a[i][0]
          dat.push "%.3f %d" % [t, y]
        end
        y += a[i][1]
        y_pre = y
        y_max = y if y > y_max
      end
    rescue
      p a[i]
    end
    if (a.last)[0] > t_end
      t_end = (a.last)[0]
    end
  end

  fimg = base+'/para_cmd.png'

  if system("which gnuplot >/dev/null 2>&1")
  IO.popen("gnuplot","r+") do |f|
    #begin f = $stdout
    f.print "
set terminal png
set output '#{fimg}'
set title '#{base}'
set xlabel 'time (sec)'
set ylabel 'parallelism'
"
    f.print "plot "
    f.puts para.map{|cmd,re| "'-' w l title '#{cmd}'"}.join(",")
    para.each do |cmd,dat|
      dat.each do |x|
        f.puts x
      end
      f.puts "e"
    end
  end
  end

  #puts "Parallelism plot: #{fimg}"
  fimg
end

.read_time_by_host_from_csv(csvtable) ⇒ Object 



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# File 'lib/pwrake/report/parallelism.rb', line 188

def read_time_by_host_from_csv(csvtable)
  a = {}
  start_time = nil

  csvtable.each do |row|
    host = row['host']
    if row['command'] == 'pwrake_profile_start'
      start_time = Time.parse(row['start_time'])
    elsif row['command'] == 'pwrake_profile_end'
      t = Time.parse(row['start_time']) - start_time
      a.each do |h,v|
        v << [t,0]
      end
    elsif start_time
      a[host] ||= []
      t = Time.parse(row['start_time']) - start_time
      a[host] << [t,+1]
      t = Time.parse(row['end_time']) - start_time
      a[host] << [t,-1]
    end
  end
  a
end

.timeline_to_grid(a) ⇒ Object 



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# File 'lib/pwrake/report/parallelism.rb', line 320

def timeline_to_grid(a)
  resolution = Rational(1,10)

  a = a.sort{|x,y| x[0]<=>y[0]}
  t_end = (a.last)[0]

  ngrid = (t_end/resolution).floor
  grid = [[0,0]]

  j = 0
  a.each do |x|
    i = (x[0]/resolution).floor
    while j < i
      grid[j+1] = [j*resolution,grid[j][1]]
      j += 1
    end
    grid[i][1] += x[1]
  end
  return grid
end