0.8.4 Release Highlights

(adapted from Conduit's Changelog)

Added

General

• Added variants of Node::to_json, Node::to_yaml, and Node::to_string that take formatting options via a Conduit Node.
• Added C API methods conduit_node_to_json, conduit_node_to_yaml, conduit_node_to_string, and conduit_node_to_summary_string.
• Added DataArray::count method.
• Added DataAccessor::{min,max,sum,mean,count} methods.
• Added Schema and Python Buffer variants to Python Node.set() and Node.set_external().

Blueprint

• Added blueprint::mesh::paint_adjset, which paints fields that encode adjacency set counts and ordering details.
• Added blueprint::mesh::examples::strided_structured which creates a structured mesh with arbitrarily strided vertex and element fields.
• Added support for mixed element topologies to the mesh blueprint.
• Added blueprint::mesh::examples::braid examples with mixed element topologies (mesh_type={"mixed", "mixed_2d"})
• Added 1D mesh example support to blueprint::mesh::examples::basic().
• Added adjacency set aware generate functions (genearte_points(), etc) to the non-mpi blueprint library.

Relay

• Added any source, any tag variants of mpi receive functions: recv, recv_using_schema, and irecv.
• Added subpath support for relay::io::{save,load,save_merged,load_merged} for basic protocols (json, yaml, etc).

Changed

Relay

• Changed HDF5 CMake sanity checks to issue WARNING instead of FATAL_ERROR, since Cray system HDF5 installs do not always present the info we use for sanity checks.
• Changed HDF5 version guards to also check requested HDF5 API.

Fixed

General

• Fixed bug with to_json() where leaf arrays of size 0 lead to malformed json.
• Fixed parsing issue with conduit_json protocol for leaf arrays of size 0.
• Fixed roundtrip parsing of numeric arrays with nan, infs, etc for JSON cases (Node::to_json() followed by Node::parse(...,"json")).

Blueprint

• Fixed a bug with blueprint::mesh::index::generate, where a uniform grid with no origin would lead to invalid coordinate system name logical in the resulting index. This case now defaults to cartesian.
• Improved relay::io::blueprint::{save_mesh|write_mesh} blueprint index generation for cases where fields do not exist on all domains.
• Fixed a bug that labeled internal faces as shared in generated adjsets.

Relay

• Fixed a bug with blueprint root file creation, where the file_pattern was not relative to the root file location
• Fixed missing header include for relay io csv support.
• Fixed a bug with relay mpi all reduce.