[petsc-users] valgrind error only with MUMPS

[Barry Smith]

On Nov 3, 2011, at 9:49 AM, Dominik Szczerba wrote:

> 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?

   Yes. Looks like they are being sloppy. Whether this is an actual error condition or irrelevant only they would know. Report it to them.

   Barry

> 
> 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)