mauricio_soares
New member
Using the same libraries and compilers to compile WRF in serial, smpar, and dmpar I got different numerical results. Is it right?
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Numerical results obtained from serial, smpar and dmpar simulations must necessarily be the same?
- Thread starter mauricio_soares
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mauricio_soares
New member
On PC, the simulations produce identical results, but on clusters, I don't get similar or close results. In some cases, I get differences greater than 5°C at a given grid point for the T2 variable. I really don't know what to do. I'm attaching the configure.wrf files from the serial and parallel builds (dmpar).
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mauricio_soares
New member
Hi,
In both simulations (serial and parallel) I used the same attached namelists files. I emphasize that I did not compile WPS in parallel, that is, the same met_em.d0?* files were used in both simulations. In the last tests I did I used version 4.5, but I already had the same problem with other versions.
Thank you in advance for the attention of the whole team.
In both simulations (serial and parallel) I used the same attached namelists files. I emphasize that I did not compile WPS in parallel, that is, the same met_em.d0?* files were used in both simulations. In the last tests I did I used version 4.5, but I already had the same problem with other versions.
Thank you in advance for the attention of the whole team.
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Hi,
I tried to replicate your issue using V4.5 and essentially your namelists. I was unable to run a serial simulation with the domain sizes you are using (I'm not sure how you were able to), so I had to decrease the domain sizes. However, the serially-compiled simulation and a dmpar-compiled simulation produced identical results.
Have you made any modifications to your WRF code? Are there any differences, whatsoever, between the simulations, besides the fact that one is compiled serially and one is compiled for dmpar?
I tried to replicate your issue using V4.5 and essentially your namelists. I was unable to run a serial simulation with the domain sizes you are using (I'm not sure how you were able to), so I had to decrease the domain sizes. However, the serially-compiled simulation and a dmpar-compiled simulation produced identical results.
Have you made any modifications to your WRF code? Are there any differences, whatsoever, between the simulations, besides the fact that one is compiled serially and one is compiled for dmpar?