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Fix assertion failure in H5D__mpio_collective_filtered_vec_io (#3340) #3350

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merged 1 commit into from
Aug 4, 2023
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Fix assertion failure in H5D__mpio_collective_filtered_vec_io (#3340) #3350

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6 changes: 3 additions & 3 deletions src/H5Dmpio.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5489,6 +5489,9 @@ H5D__mpio_collective_filtered_vec_io(const H5D_filtered_collective_io_info_t *ch
for (size_t i = 0, vec_idx = 0; i < chunk_list->num_chunk_infos; i++) {
H5F_block_t *chunk_block;

if (op_type == H5D_IO_OP_READ && !chunk_list->chunk_infos[i].need_read)
continue;

/*
* Check that we aren't going to accidentally try to write past the
* allocated memory for the I/O vector buffers in case bookkeeping
Expand All @@ -5497,9 +5500,6 @@ H5D__mpio_collective_filtered_vec_io(const H5D_filtered_collective_io_info_t *ch
*/
assert(vec_idx < iovec_count);

if (op_type == H5D_IO_OP_READ && !chunk_list->chunk_infos[i].need_read)
continue;

/* Set convenience pointer for current chunk block */
chunk_block = (op_type == H5D_IO_OP_READ) ? &chunk_list->chunk_infos[i].chunk_current
: &chunk_list->chunk_infos[i].chunk_new;
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