% Speedup: general examples

clc; clf; clear

%% Generate data
cpus     = [ 1 2 4 8 16 32 64];  % #processors
time_cpu = [ 508.74  257.83  132.20  110.17  55.93 28.20  14.11];  % seconds

gpus     = [2 4 8 16 32 ];       % #processors
time_gpu = [7.576 3.509  1.712  0.925   0.692 ];                   % seconds

plot(cpus,time_cpu,gpus,time_gpu)

% Skaliere relativ zu 2 CPUs/2GPUs
% CPU: div. durch 2. Eintrag
scal_cpu = time_cpu/time_cpu(2);
% GPU: div. durch 1. Eintrag
scal_gpu = time_gpu/time_gpu(1);

plot(cpus,scal_cpu,'-sr',gpus,scal_gpu,'-*b','LineWidth',2)

legend('CPU','GPU')
xlabel('Anzahl')
ylabel('Zeit')
title('Zeiten relativ zu 2 Cores')

saveas(gcf,'speedup_11.jpg')