The OPAL Discussion Forum

[Christof Metzger-Kraus <christof.j.kraus AT gmail.com>]

Hi Chris,

I can't find anything in the changes of the source code that could have such an influence on the compute time for the external fields. I'll investigate this.

Christof

On Mon, Jan 11, 2021 at 9:44 PM Chris Hall <chall AT radiasoft.net> wrote:

Hi All,

I recently noticed that some OPAL simulations were taking much longer than expected. We upgraded to OPAL 2.4.0 from 2.2.0 not that long ago so I reran an old simulation I still had outputs for. From this I see that the average Wall and CPU times for "External field eval." have increased by almost a factor of 10 when I compare 2.4 to 2.2. This leads to a doubling of the total wall clock run time. None of the other individual timing results show significant difference between the two runs.

Is anyone aware of changes between the two versions that might have caused this, or any other factors that should be investigated that would lead to this?

I've attached the run logs (with step updates cut out) for the runs on versions 2.2 and 2.4 for reference.

Thanks!

--

Chris hall

Research Scientist | RadiaSoft

720-502-3928 x709 | chall AT radiasoft.net

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