Re: [raxml] Floating point exception (core dumped) - modeltest-NG

[Alexey Kozlov]

Hello Bhei,

could you please post your question to the modeltest-ng support group:

https://groups.google.com/g/modeltest-ng

and/or open an issue on github:

https://github.com/ddarriba/modeltest

Best,
Alexey

On 25.10.21 07:14, EB Wong wrote:
> Hi everyone,
>
> I am running modeltest-ng to get the best-fit model for raxml-ng. Out of the 30 genes in my file,
> one of them was aborted half way in the run and received error "Floating point exception (core
> dumped)" from modeltest-ng.
>
> Here is the command I was using:
> modeltest-ng -d aa -i C0256.laln -o C0256.laln.mt -ff
>
> I saw previous discussion suggested to use only single core for the run (I tried -p 1), but the
> error still persisted in my case.
>
> I tried a few parameter options on the run and it happened to stop when it is supposed to calculate
> model+I+G4. As according to the manual, modeltest-ng was considering both the proportion of
> invariant sites (I) and gamma rate categories (G) in searching the best model with optimum rate
> heterogeneity by default. So I tested a few times to include I and G option separately in the run.
> Surprisingly, my file was able to run properly.
>
> However, I would prefer to obtain the best-fit model by including the calculation of both I and G
> for my sequences or at least understand further on what was happening in the run before opting to
> either I or G (just in case I have to). Floating point exception sounds something like zero division
> error to me. Does anybody have any idea on the error and what I should do about it?
>
> Thanks!
> Bhei
>
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