Hello,
I am running a finite element (FE) simulation using the FE software PAMSTAMP. I have noticed that when I run the solver in parallel with 4 cores, the repeatably of the results is poor; when I press 'run' for the same model twice, it gives me inconsistent answers.
However when I run the simulation on a single core, it gives me consistent answers for multiple runs of the same model.
This has lead me to believe that the simulations are divided differently between multiple cores, each time the solver is run.
Is there a way to still run the simulation in parallel (multiple cores) but have the solver divide the calculation in the same manner each time, to ensure consistency for multiple runs?
Thanks,
Hamid
Eanass Al-Shabkhoon thanks for your reply. Please could you elaborate how floating point error could occur? The amount of error (differences in multiple runs) occurs randomly each run, and I am not sure why this is.
Could you please let me know how to avoid the floating point error? Please note I am using double precision solver.
According to situations I do not know it may because of division by zero, tan inverse 90, index zero or any value out of range, debugging by any mean must indicate the case
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