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-rw-r--r--src/H5Pint.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/H5Pint.c b/src/H5Pint.c
index 4064b66..12582bb 100644
--- a/src/H5Pint.c
+++ b/src/H5Pint.c
@@ -5500,7 +5500,7 @@ H5P_verify_apl_and_dxpl(hid_t *acspl_id, const H5P_libclass_t *libclass, hid_t *
happens only when the environment variable H5_COLL_BARRIER is set
to non 0. */
if(is_collective && H5_coll_api_sanity_check_g) {
- MPI_Comm mpi_comm;
+ MPI_Comm mpi_comm; /* file communicator */
/* retrieve the MPI communicator from the loc_id or the fapl_id */
if(H5F_mpi_retrieve_comm(loc_id, *acspl_id, &mpi_comm) < 0)