[petsc-users] valgrind error only with MUMPS

[Dominik Szczerba]

When solving my linear system using:

-pc_type lu -pc_factor_mat_solver_package mumps -ksp_monitor
-ksp_converged_reason -ksp_view

I get the below cited error. When solving with:

-ksp_type bcgs -pc_type jacobi -ksp_rtol 1e-9
-ksp_converged_use_initial_residual_norm -ksp_norm_type
unpreconditioned -ksp_monitor -ksp_converged_reason -ksp_view

there are no errors reported. Problem with MUMPS?

Dominik

==19601== Syscall param writev(vector[...]) points to uninitialised byte(s)
==19601==    at 0x6791F59: writev (writev.c:56)
==19601==    by 0x552CD8: MPIDU_Sock_writev (sock_immed.i:610)
==19601==    by 0x5550DB: MPIDI_CH3_iSendv (ch3_isendv.c:84)
==19601==    by 0x53B83A: MPIDI_CH3_EagerContigIsend (ch3u_eager.c:541)
==19601==    by 0x53DA03: MPID_Isend (mpid_isend.c:130)
==19601==    by 0x1440C71: PMPI_Isend (isend.c:124)
==19601==    by 0x1453DED: MPI_ISEND (isendf.c:190)
==19601==    by 0x124069F: __dmumps_comm_buffer_MOD_dmumps_62
(dmumps_comm_buffer.F:567)
==19601==    by 0x12C1B4C: dmumps_242_ (dmumps_part2.F:739)
==19601==    by 0x120C987: dmumps_249_ (dmumps_part8.F:6541)
==19601==    by 0x120599F: dmumps_245_ (dmumps_part8.F:3885)
==19601==    by 0x1229BCF: dmumps_301_ (dmumps_part8.F:2120)
==19601==    by 0x128D272: dmumps_ (dmumps_part1.F:665)
==19601==    by 0x1178753: dmumps_f77_ (dmumps_part3.F:6651)
==19601==    by 0x1151A79: dmumps_c (mumps_c.c:422)
==19601==    by 0x791075: MatSolve_MUMPS (mumps.c:547)
==19601==    by 0x73ABA0: MatSolve (matrix.c:3108)
==19601==    by 0x7FC5B9: PCApply_LU (lu.c:204)
==19601==    by 0xD95AAB: PCApply (precon.c:383)
==19601==    by 0xD98A70: PCApplyBAorAB (precon.c:609)
==19601==  Address 0x86df168 is 8 bytes inside a block of size 144 alloc'd
==19601==    at 0x4C28F9F: malloc (vg_replace_malloc.c:236)
==19601==    by 0x124235E: __dmumps_comm_buffer_MOD_dmumps_2
(dmumps_comm_buffer.F:175)
==19601==    by 0x12426E7: __dmumps_comm_buffer_MOD_dmumps_55
(dmumps_comm_buffer.F:123)
==19601==    by 0x121F28B: dmumps_301_ (dmumps_part8.F:989)
==19601==    by 0x128D272: dmumps_ (dmumps_part1.F:665)
==19601==    by 0x1178753: dmumps_f77_ (dmumps_part3.F:6651)
==19601==    by 0x1151A79: dmumps_c (mumps_c.c:422)
==19601==    by 0x791075: MatSolve_MUMPS (mumps.c:547)
==19601==    by 0x73ABA0: MatSolve (matrix.c:3108)
==19601==    by 0x7FC5B9: PCApply_LU (lu.c:204)
==19601==    by 0xD95AAB: PCApply (precon.c:383)
==19601==    by 0xD98A70: PCApplyBAorAB (precon.c:609)
==19601==    by 0x8D817F: KSPSolve_BCGS (bcgs.c:79)
==19601==    by 0x86B189: KSPSolve (itfunc.c:423)
==19601==    by 0x56013D: PetscLinearSystem::Solve() (PetscLinearSystem.cxx:221)
==19601==    by 0x4E34F6: SolidSolver::Solve() (SolidSolver.cxx:1153)
==19601==    by 0x4EFF56: main (SolidSolverMain.cxx:684)