PDS/homework_3/matlab/SpeedUp.m

% MATLAB script to plot Speedup (Serial Time / Total Time)

% Define Q values
Q = 20:30;

% Define Serial execution times (converted to milliseconds)
serial_times = [
       74,   154,  328,   689, 1441, 3028, 6293, 13700,  27170,  55340, 115580];

% Define Total execution times (converted to milliseconds)
total_times = [
    8.733,     12,   59,   37,   56,   98,   229,   420,   976,   1910,  3971;  % V0 - ampere
    2.676,  6.308,   10,   18,   34,   83,   134,   331,   664,   1364,  2938;  % V1 - ampere
    2.883,  5.861,   12,   21,   34,   86,   135,   331,   749,   1459,  3063;  % V2 - ampere
    6.559,     12,   23,   49,  101,  210,   442,   939,  1986,   4211,  9071;  % V0 - tesla
    4.559,  9.014,   18,   39,   80,  169,   358,   761,  1618,   3440,  7326;  % V1 - tesla
    4.407,  8.751,   17,   38,   75,  159,   338,   719,  1533,   3262,  6932;  % V2 - tesla
       16,     33,   71,  153,  327,  696,  1493,  3177,  6782,  14420,   NaN;  % V0 - gtx1650
    8.271,     17,   37,   78,  161,  353,   774,  1709,  3701,   8106,   NaN;  % V1 - gtx1650
    8.985,     18,   38,   81,  169,  370,   810,  1779,  3864,   8424,   NaN   % V2 - gtx1650
];

% Compute Speedup
speedup = serial_times ./ total_times;

% Plot in log scale
figure('Name', 'Results-SpeedUp', 'Position', [100, 100, 1600, 900]);
plot(Q, speedup', '-o', 'LineWidth', 1.5);
grid on;
xlabel('Q (Memory Size)');
ylabel('Speedup (Serial / Total)');
title('Speed up over memory size');
legend({'V0 ampere', 'V1 ampere', 'V2 ampere', 'V0 tesla', 'V1 tesla', 'V2 tesla', 'V0 gtx1650', 'V1 gtx1650', 'V2 gtx1650'}, 'Location', 'northwest');
saveas(gcf, 'speedup_plot.png');