Pyrosim and FDS

[mor2enbar]

Hi
I would like to know if there is a difference between the speed of running directly through the Pyrosim, compared to running through FDS? is there a difference in the results?

In addition, does the Linux operating system have an advantage in speeds compared to Windows
Thanks in advance

In addition, does the Linux operating system have an advantage in speeds compared to Windows?
Thanks in advance

Mor

[dr_jfloyd]

Pyrosim runs the release version of FDS associated with that specific version of Pyrosim. You should see the same results were you to run the that version of FDS outside of Pyrosim. Assuming your machine has sufficient resources to be simultaneously running Pyrosim and FDS, I would not expec that would see a large speed difference.

For large simulations (lots of grid cells over multiple cores), Linux is generally better at managing multiple cores and generally a dedicated Linux cluster will not have the same level of overhead for the operating system that a Windows machine does.

[Jonas]

Pyrosim is mainly an added Graphical User interface to FDS. So it uses the same MPI algorithm as FDS, hence no changes in simulation time. 

the "speed" of running a code is usually related to the CPU base speed. and how "fast" you can march in time is related to how many sections you decomposed your domain to (MPI).

Changing the OS wouldn't change these that much  

[mor2enbar]

Thank you all for your ansewrs