diff options
Diffstat (limited to 'src/H5Cimage.c')
| -rw-r--r-- | src/H5Cimage.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/H5Cimage.c b/src/H5Cimage.c index 7421c90..98c1291 100644 --- a/src/H5Cimage.c +++ b/src/H5Cimage.c @@ -997,6 +997,9 @@ H5C__read_cache_image(H5F_t *f, H5C_t *cache_ptr) #endif /* H5_HAVE_PARALLEL */ /* Read the buffer (if serial access, or rank 0 of parallel access) */ + /* NOTE: if this block read is being performed on rank 0 only, throwing + * an error here will cause other ranks to hang in the following MPI_Bcast. + */ if (H5F_block_read(f, H5FD_MEM_SUPER, cache_ptr->image_addr, cache_ptr->image_len, cache_ptr->image_buffer) < 0) HGOTO_ERROR(H5E_CACHE, H5E_READERROR, FAIL, "Can't read metadata cache image block") |