필터 지우기
필터 지우기

How are parallel with ode45

조회 수: 7 (최근 30일)
omar A.alghafoor
omar A.alghafoor 2020년 11월 12일
댓글: omar A.alghafoor 2020년 11월 23일
Hi friends. i trying reduce execution time for my code ( system - differential equations ) by using parallel .
what are steps .... thanks in advance .
rows=1024;
cols=1024;
% interval=(rows*cols)/100;
interval=linspace(0,1,rows*cols);
[T,res]=ode45(@odefun,interval,[0.5;.4;.2]);%[0.5;.4;.2]);
% plot(T,res(:,1),T,res(:,2),T,res(:,3))
% legend('X','Y','Z')
k1=res(:,1);
k2=res(:,2);
k3=res(:,3);
function D=odefun(t,X)
x0=X(1);
y0=X(2);
z0=X(3);
a=35;
b=1.3;
c=3;
d=8;
e=10;
f=2;
g=5;
h=0.5;
x1=a*(y0-x0)+b*y0*z0;
y1=-c*x0*z0+d*y0+e*x0;
z1=f*x0*y0-g*z0+h*x0;
D=[x1;y1;z1];
end
  댓글 수: 2
James Tursa
James Tursa 2020년 11월 12일
편집: James Tursa 2020년 11월 12일
Numeric solvers such as ode45( ) rely on calculating the derivatives with the current state. This must be done in a sequential stepping process because the future estimated state at the next step depends on the estimated solution at the current step. You can't run any future steps in parallel because they depend on the estimated solution being known at that future time, and you don't have that.
omar A.alghafoor
omar A.alghafoor 2020년 11월 23일
thank you

댓글을 달려면 로그인하십시오.

답변 (1개)

Ameer Hamza
Ameer Hamza 2020년 11월 12일
MATLAB's ODE solvers do not support parallel processing capability.

카테고리

Help CenterFile Exchange에서 Ordinary Differential Equations에 대해 자세히 알아보기

제품


릴리스

R2019a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by