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Diffusion FENNECS: Finite Element Non-Neutral Electron Cloud Simulator (breakdown) Browse

fennecs/matlab/sscalling.m
81171805e064breakdown

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sscalling.m
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%% Strong scaling for a collisional system with 10M electrons using FENNECS
% the geometry is a coaxial configuration of constant radius
Ncores = [ 1 2 4 8 16 32];% 36 72];
time = [ 9418 4536 2510 1449 874 608];% 1665 1155];
Ncores = [ 1 2 4 8 16];% 32 36 72];
timeomp = [ 3279 1712 945 502 312];% 196 1665 1155];
f=figure;
plot(Ncores, timeomp(1)*Ncores(1)./timeomp,'r-','displayname','Measured','linewidth',2)
hold on
plot(0:Ncores(end),0:Ncores(end),'k--','displayname','Ideal','linewidth',2)
ylabel('t_1/t_{N_{cores}} [-]')
yyaxis right
plot(Ncores,timeomp(1).*Ncores(1)./(timeomp.*Ncores),'bx:','linewidth',2,'markersize',12,'displayname','Efficiency')
xlabel('N_{cores} [-]')
ylabel('Parallel efficiency [-]')
set(gca,'fontsize',16)
grid on
grid on
legend('location','north')
ax = gca;
ax.YAxis(1).Color = 'k';
ax.YAxis(2).Color = 'b';
ylim([0 1.2])
xlim([0 35])
name='sscalingOMP';
print(f,name,'-dpdf','-fillpage')
savefig(f,name)
exportgraphics(f,sprintf('%s.png',name),'Resolution',600)
set(f, 'Color', 'w');
exportgraphics(f,sprintf('%s.eps',name))
%% MPI with 4 cores per task
Ntasks = [ 1 2 4 8 16];
time = [1449 758 768 326 447];
%time = [2510 1695 840 521 584];
Ntasks = [ 1 2 4 8 16];% 32];
time = [ 945 490 268 160 107];% 102];
f=figure;
plot(Ntasks*4, timeomp(1)./time,'r-','displayname','Measured','linewidth',2)
hold on
ylabel('t_1/t_{N_{cores}} [-]')
plot(0:64,0:64,'k--','displayname','Ideal','linewidth',2)
yyaxis right
plot(Ntasks*4,timeomp(1)/4*Ntasks(1)./(time.*Ntasks),'bx:','linewidth',2,'markersize',12,'displayname','Efficiency')
xlabel('N_{cores}=N_{tasks} x N_{omp,cores} [-]')
ylabel('Parallel efficiency [-]')
set(gca,'fontsize',16)
grid on
legend('location','north')
ylim([0 1.2])
xlim([0 70])
ax = gca;
ax.YAxis(1).Color = 'k';
ax.YAxis(2).Color = 'b';
name='sscalingMPI';
print(f,name,'-dpdf','-fillpage')
savefig(f,name)
exportgraphics(f,sprintf('%s.png',name),'Resolution',600)
set(f, 'Color', 'w');
exportgraphics(f,sprintf('%s.eps',name))
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