Merging in latest from upstream (HDFFV/hdf5:refs/heads/develop)

* commit '906c1819188755a04fde6cc0ad7346775a6e61b8':
  Skip tests for page buffering in test/fheap.c for parallel build Skip the two tests for page buffering in test/fheap.c because this feature is disabled in parallel. Activate full testing when this feature is re-enabled in the future for parallel build.
  Due to HDFVIEW-19 add read VL as string function
  Fix URL name
  updated with README changes
  DAILYTEST-250 change test props to reduce timeout
  Combined the README_DEVEL and README, and removed out-dated README material
  Fix for H5Dset_extent test failure with extensive array indexing (HDFFV-9771) 1) Calculate chunk index for extensive array index based on swizzled max chunks when unlim_dim > 0 2) Minor fixes to test/fheap.c that somehow were missed from last check in.  See pull request #396 review comments.

2 files changed, 13 insertions, 3 deletions

diff --git a/src/H5Dearray.c b/src/H5Dearray.c
index e9dbd0d..240afb7 100644
--- a/src/H5Dearray.c
+++ b/src/H5Dearray.c
@@ -1137,7 +1137,7 @@ H5D__earray_idx_get_addr(const H5D_chk_idx_info_t *idx_info, H5D_chunk_ud_t *uda
         H5VM_swizzle_coords(hsize_t, swizzled_coords, idx_info->layout->u.earray.unlim_dim);
 
         /* Calculate the index of this chunk */
-        idx = H5VM_chunk_index(ndims, swizzled_coords, idx_info->layout->u.earray.swizzled_dim, idx_info->layout->u.earray.swizzled_down_chunks);
+        idx = H5VM_chunk_index(ndims, swizzled_coords, idx_info->layout->u.earray.swizzled_dim, idx_info->layout->u.earray.swizzled_max_down_chunks);
     } /* end if */
     else {
         /* Calculate the index of this chunk */
@@ -1202,7 +1202,8 @@ H5D__earray_idx_resize(H5O_layout_chunk_t *layout)
 
     /* "Swizzle" constant dimensions for this dataset */
     if(layout->u.earray.unlim_dim > 0) {
-        hsize_t swizzled_chunks[H5O_LAYOUT_NDIMS];    /* Swizzled form of # of chunks in each dimension */
+        hsize_t swizzled_chunks[H5O_LAYOUT_NDIMS];      /* Swizzled form of # of chunks in each dimension */
+        hsize_t swizzled_max_chunks[H5O_LAYOUT_NDIMS];  /* Swizzled form of max # of chunks in each dimension */
 
         /* Get the swizzled chunk dimensions */
         HDmemcpy(layout->u.earray.swizzled_dim, layout->dim, (layout->ndims - 1) * sizeof(layout->dim[0]));
@@ -1215,6 +1216,14 @@ H5D__earray_idx_resize(H5O_layout_chunk_t *layout)
         /* Get the swizzled "down" sizes for each dimension */
         if(H5VM_array_down((layout->ndims - 1), swizzled_chunks, layout->u.earray.swizzled_down_chunks) < 0)
             HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "can't compute swizzled 'down' chunk size value")
+
+        /* Get the swizzled max number of chunks in each dimension */
+        HDmemcpy(swizzled_max_chunks, layout->max_chunks, (layout->ndims - 1) * sizeof(swizzled_max_chunks[0]));
+        H5VM_swizzle_coords(hsize_t, swizzled_max_chunks, layout->u.earray.unlim_dim);
+
+        /* Get the swizzled max "down" sizes for each dimension */
+        if(H5VM_array_down((layout->ndims - 1), swizzled_max_chunks, layout->u.earray.swizzled_max_down_chunks) < 0)
+            HGOTO_ERROR(H5E_DATASET, H5E_CANTSET, FAIL, "can't compute swizzled 'down' chunk size value")
     } /* end if */
 
 done:
@@ -1414,7 +1423,7 @@ H5D__earray_idx_remove(const H5D_chk_idx_info_t *idx_info, H5D_chunk_common_ud_t
         H5VM_swizzle_coords(hsize_t, swizzled_coords, idx_info->layout->u.earray.unlim_dim);
 
         /* Calculate the index of this chunk */
-        idx = H5VM_chunk_index(ndims, swizzled_coords, idx_info->layout->u.earray.swizzled_dim, idx_info->layout->u.earray.swizzled_down_chunks);
+        idx = H5VM_chunk_index(ndims, swizzled_coords, idx_info->layout->u.earray.swizzled_dim, idx_info->layout->u.earray.swizzled_max_down_chunks);
     } /* end if */
     else {
         /* Calculate the index of this chunk */
diff --git a/src/H5Oprivate.h b/src/H5Oprivate.h
index f0fbe72..0a4ed74 100644
--- a/src/H5Oprivate.h
+++ b/src/H5Oprivate.h
@@ -584,6 +584,7 @@ typedef struct H5O_layout_chunk_earray_t {
     unsigned    unlim_dim;              /* Rank of unlimited dimension for dataset */
     uint32_t    swizzled_dim[H5O_LAYOUT_NDIMS]; /* swizzled chunk dimensions */
     hsize_t    	swizzled_down_chunks[H5O_LAYOUT_NDIMS];	/* swizzled "down" size of number of chunks in each dimension */
+    hsize_t     swizzled_max_down_chunks[H5O_LAYOUT_NDIMS]; /* swizzled max "down" size of number of chunks in each dimension */
 } H5O_layout_chunk_earray_t;
 
 typedef struct H5O_layout_chunk_bt2_t {