Parallel processing trouble

SWAPNASRITA · May 8, 2019, 04:16

Hello,

I am using OpenFOAM-4.1 and dsmcFoam for my application.
I have my own solver which I have added to the dsmc library.
I had to change workstation and that is when the problem started with parallel processing.
In this new workstation, I get correct results with single processor.
But if I try to use parallel processing with 8,9 or 10 processor it does not work. It only works with 5, 7 or 12 processors

Case details:
I have a 200 X 200 X 1000 porous structure and I decompose it in the z direction only. Then I use dsmcReactionFoam (my own) to get concentration of gas flowing through the porous structure.

As it is a very specific kind of issue, I couldn't find any help online.
Any help would be appreciated.

SWAPNASRITA · May 20, 2019, 08:00

It was due to typecasting a variable wrong.. I initialised a varibale as scalar and it needed to be int.

May 8, 2019, 04:16	Parallel processing trouble	#1
SWAPNASRITA New Member odisha Join Date: Dec 2016 Posts: 8 Rep Power: 9	Hello, I am using OpenFOAM-4.1 and dsmcFoam for my application. I have my own solver which I have added to the dsmc library. I had to change workstation and that is when the problem started with parallel processing. In this new workstation, I get correct results with single processor. But if I try to use parallel processing with 8,9 or 10 processor it does not work. It only works with 5, 7 or 12 processors Case details: I have a 200 X 200 X 1000 porous structure and I decompose it in the z direction only. Then I use dsmcReactionFoam (my own) to get concentration of gas flowing through the porous structure. As it is a very specific kind of issue, I couldn't find any help online. Any help would be appreciated.

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May 20, 2019, 08:00		#2
SWAPNASRITA New Member odisha Join Date: Dec 2016 Posts: 8 Rep Power: 9	It was due to typecasting a variable wrong.. I initialised a varibale as scalar and it needed to be int.