[bassaad17]

Hello,

I'm trying to get the correct Tracer file for my model properly defined in 'controlDict' but the model does NOT run in parallel when using 16 processors for OF v1612+.

The model I received was written for OF v1606+ and it is running properly when using 'mpirun -np 8 buoyantBoussinesqSimpleFoam -parallel >> buoyantBoussSimpleFoam20.log' on OFv1606+

This is the tracer definition as written in OF v1606+

SPLC_Tracer
	{
		type scalarTransport;
		functionObjectLibs ("libutilityFunctionObjects.so");
		writeControl outputTime;
		writeInterval 8;
		active 	true;
		autoSchemes false;
		nCorr	0;
		resetOnStartUp false;
		fvOptions
	 	 {

	 	 }
	}

When doing research online, i found out that OF v1612+ updated the functionObjectLibs to libs and this is the new code i'm using:

SPLC_Tracer
	{
		type scalarTransport;
		libs ("libsolverFunctionObjects.so");
		field SPLC_Tracer;
		writeControl outputTime;
		writeInterval 8;
		active 	true;
		autoSchemes false;
		nCorr	0;
		resetOnStartUp false;
		fvOptions
	 	 {

	 	 }
	}

When I run the new SPLC_Tracer with OF v1612+, my model does NOT run in parallel - it crashes saying "MPI_ABORT"

This is the error seen on my linux terminal screen:

[2] --> FOAM FATAL IO ERROR:
[2] cannot find file
[2]
[2] file: /Projects/2018_10_03/RUN2_RMR/processor2/24/SPLC_Tracer at line 0.
[2]
[2]     From function regIOobject::readStream()
[2]     in file db/regIOobject/regIOobjectRead.C at line 237.
[2]
FOAM parallel run exiting
[2]
[linux-n2:13111] 15 more processes have sent help message help-mpi-api.txt / mpi-abort
[linux-n2:13111] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages

Do you know what do i need to do to overcome this issue and properly run my tracer in OF v1612+? I've also attached the .log file. Please help!

[RobertHB]

Originally Posted by bassaad17

SPLC_Tracer
    {
        type scalarTransport;
        libs ("libsolverFunctionObjects.so");
        field SPLC_Tracer;
        writeControl outputTime;
        writeInterval 8;
        active     true;
        autoSchemes false;
        nCorr    0;
        resetOnStartUp false;
        fvOptions
          {

          }
     }

[2] --> FOAM FATAL IO ERROR:
 [2] cannot find file
[2]
[2] file: /Projects/2018_10_03/RUN2_RMR/processor2/24/SPLC_Tracer at line 0.
[2]
[2]     From function regIOobject::readStream()
[2]     in file db/regIOobject/regIOobjectRead.C at line 237.
[2]
FOAM parallel run exiting
[2]
[linux-n2:13111] 15 more processes have sent help message help-mpi-api.txt / mpi-abort
[linux-n2:13111] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages

The field you defined in your code snippet is a dictionary file containing the boundary conditions for your tracer and which has to be placed in the 0/ folder. By standard this file is called T or s, but you told your simulation the file is called SPLC_Tracer. So make sure that this file is accurately named and placed in the 0/ folder. Obviously this file has also to appear in all following timestep folder (e.g. 24).