[NewKid]

Hi, everyone,
I encountered one problem while running post_convert_msmpi_64.exe, which was said to be a parallel converter, to convert the 'out' files. It seems running the exe file solely didn't save more time than running post_convert.exe to convert the 'out' file which had a size more then 42G.
Then I tried to run post_convert_msmpi_64.exe with msmpi library, like 'mpiexec -n 64 post_convert_msmpi_64.exe' on my AMD ThreadRipper 2990WX CPU. Emm......, nothing better happened, sometimes even need more time, and the 2990WX CPU looked like only one core reached 100% while many of the cores stayed 0% and some of them reached 1-2% from time to time. CPU looked like the figure below.
Cache.jpg

So I want to know how to run post_convert_msmpi_64.exe parallelly to use the AMD TR 2990WX fully and shorten the duration to convert 'out' file?

Thanks in advance!

[nitesh.attal]

Originally Posted by NewKid

Hi, everyone,
I encountered one problem while running post_convert_msmpi_64.exe, which was said to be a parallel converter, to convert the 'out' files. It seems running the exe file solely didn't save more time than running post_convert.exe to convert the 'out' file which had a size more then 42G.
Then I tried to run post_convert_msmpi_64.exe with msmpi library, like 'mpiexec -n 64 post_convert_msmpi_64.exe' on my AMD ThreadRipper 2990WX CPU. Emm......, nothing better happened, sometimes even need more time, and the 2990WX CPU looked like only one core reached 100% while many of the cores stayed 0% and some of them reached 1-2% from time to time. CPU looked like the figure below.
Attachment 67570

So I want to know how to run post_convert_msmpi_64.exe parallelly to use the AMD TR 2990WX fully and shorten the duration to convert 'out' file?

Thanks in advance!

It appears that you are running the post converter (64 process) on a machine with 32 core which may be the cause of slowdown (2 process per core). Please try running less than 32 processes on your 32 core machine, e.g.,

mpiexec -n 16 post_convert_msmpi_64.exe

[NewKid]

Thanks so much for your suggestion! Now parallel converting is OK with 16, 8, or 4 cores. Anyway, it seems running the converter directly takes the shortest time to complete the conversion...
P.S: We complete the conversion using post_convert_ompi_64 on Ubuntu right now.

Regards！