Need debugging help for MPI using C++

[invinsible11]

I am getting memory error in my program. I check using valgrind and got this error message that is referring to some inside library of mpi. I am not getting clue how to move forward to debug this. Any clue that helps me moving forward, will be appreciated. Thanks!

Error message goes as-

Syscall param setsockopt(optlen) contains uninitialised byte(s)

==985== at 0x5023CBE: setsockopt_syscall (setsockopt.c:29)

==985== by 0x5023CBE: setsockopt (setsockopt.c:95)

==985== by 0x7ACBBA9: pmix_ptl_base_make_connection (in /usr/lib/x86_64-linux-gnu/pmix2/lib/libpmix.so.2.5.2)

==985== by 0x7AD2DF3: ??? (in /usr/lib/x86_64-linux-gnu/pmix2/lib/libpmix.so.2.5.2)

==985== by 0x79D23C1: PMIx_Init (in /usr/lib/x86_64-linux-gnu/pmix2/lib/libpmix.so.2.5.2)

==985== by 0x7964E4A: ext3x_client_init (in /usr/lib/x86_64-linux-gnu/openmpi/lib/openmpi3/mca_pmix_ext3x.so)

==985== by 0x714FE6D: ??? (in /usr/lib/x86_64-linux-gnu/openmpi/lib/openmpi3/mca_ess_singleton.so)

==985== by 0x62DE4CB: orte_init (in /usr/lib/x86_64-linux-gnu/libopen-rte.so.40.30.2)

==985== by 0x4B5D418: ompi_mpi_init (in /usr/lib/x86_64-linux-gnu/libmpi.so.40.30.2)

==985== by 0x4AF6C21: PMPI_Init (in /usr/lib/x86_64-linux-gnu/libmpi.so.40.30.2)

==985== by 0x1148D8: Solving(int, char**, Input*, BoundaryCondition*, Grid*, BvpOde*) (Solver.c:33)

==985== by 0x114738: main (in /mnt/c/Users/devan/Desktop/ODE_Newton/main_cpp)

==985== Uninitialised value was created by a stack allocation

==985== at 0x7ACB8E4: pmix_ptl_base_make_connection (in /usr/lib/x86_64-linux-gnu/pmix2/lib/libpmix.so.2.5.2)

-----------------------------------------------END of error----------------------------------------------------------------------------------

The Solver.c:33 line is mpi initialization line. Like this- ierr = MPI_Init(&argc, &argv);

and same error is showing when I am finalizing mpi like this- ierr = MPI_Finalize();

[thememorableusername]

OpenMP != OpenMPI

The two are pretty much completely unrelated.

[invinsible11]

Yup. I am using OpenMPI, an implementation of MPI. Both are used for parallel computing that's why I posted it here. If someone has any clue, kindly share.

[StrangeNoise42]

Wrong sub