Performance of synthetic testcase

[Martin Sjölund]

model CheckInstantiationLimit
  extends M(i=1);

package P
  constant Integer limit=10;
end P;

model N
  parameter Integer i;
  M m(i=i+1) if i <P.limit;
end N;

model M
  parameter Integer i;
  N n(i=i+1) if i<P.limit;
end M;

end CheckInstantiationLimit;

Scales P.limit^3, see the table below:

100 0.19
200 1.07
400 8.20
500 16.5

[Per Östlund]

This model scales even worse:

model Faculty
  extends N(i = limit);
  constant Integer limit;

  model N
    constant Integer i;
    constant Integer result = if i == 1 then 1 else i * m.result if i > 0;
    M m(i = i - 1) if i > 0;
  end N;

  model M
    constant Integer i;
    constant Integer result = if i == 1 then 1 else i * m.result if i > 0;
    N m(i = i - 1) if i > 0;
  end M;
end Faculty;

model M
  Faculty f(limit = 15);
  constant Integer result = f.result;
end M;

For me it scales like:

limit     time
 5        0.05
10        0.6
15        22

[Martin Sjölund]

Milestone changed to 1.9.3 since 1.9.2 was released.

[Martin Sjölund]

Moved to new milestone 1.9.4

[Martin Sjölund]

Milestone pushed to 1.9.5

[Martin Sjölund]

Milestone renamed

[Martin Sjölund]

Ticket retargeted after milestone closed

[Martin Sjölund]

Milestone moved to 1.12.0 due to 1.11.0 already being released.

[Francesco Casella]

The milestone of this ticket has been reassigned to "Future".

If you think the issue is still valid and relevant for you, please select milestone 1.13.0 for back-end, code generation and run-time issues, or 2.0.0 for front-end issues.

If you are aware that the problem is no longer present, please select the milestone corresponding to the version of OMC you used to check that, and set the status to "worksforme".

In both cases, a short informative comment would be welcome.