set terminal postscript eps
set output "read.eps"

set xrange [1:24]
set xlabel "number of cpus"
set ylabel "speedup"

plot "read.dat" using 1:2 with lines linewidth 2 linecolor rgbcolor "red" title "read", "read_with_qa.dat" using 1:2 with lines linewidth 2 linecolor rgbcolor "navy" title "read with affinity", "linear.dat" using 1:2 with lines linewidth 2 linecolor rgbcolor "purple" title "linear"