[petsc-users] Writing Vector to HDF5 file - Valgrind debug

[Que Cat]

Dear Petsc-User,

I used the following comment to write to a HDF5 file:

PetscViewer         H5viewer;
PetscViewerHDF5Open(..., & H5viewer)
PetscObjectSetName( (PetscObject) vector, Name);
VecView(vector,H5viewer);
PetscViewerDestroy(&H5viewer);

As I debug using valgrind, I received the following error:

==29820== Use of uninitialised value of size 8
==29820==    at 0x828B87B: H5D__chunk_lookup (H5Dchunk.c:2274)
==29820==    by 0x82ACEA3: H5D__link_chunk_collective_io (H5Dmpio.c:856)
==29820==    by 0x82AC858: H5D__chunk_collective_io (H5Dmpio.c:696)
==29820==    by 0x82ACC8B: H5D__chunk_collective_write (H5Dmpio.c:781)
==29820==    by 0x82A8C47: H5D__write (H5Dio.c:672)
==29820==    by 0x82A72E9: H5Dwrite (H5Dio.c:265)
==29820==    by 0x53E6393: VecView_MPI_HDF5 (pdvec.c:786)
==29820==    by 0x53E6E5A: VecView_MPI (pdvec.c:851)
==29820==    by 0x5398A7C: VecView (vector.c:717)

I have checked that my vector used in VecView(vector,H5viewer) was
initialized before calling VecView(vector,H5viewer). Check the output hdf5
file, all the data was recorded correctly. Should I worry about the error
detect by valgrind? Thanks.

Que
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