Module rcso 

RCSO/RCSB cooked numerics for a caller-side broadcast. No MPI in this crate. RCSO cooked SoA bytes for a caller-side MPI_Bcast.

Layout matches readcon-db cooked_soa v1 (little-endian): magic RCSO, version, natoms, flags, dtype, pad, reserved, then positions, optional forces, optional velocities.

This crate never calls MPI_Init or names WORLD. Rank 0 encodes; the caller broadcasts; workers decode.

Structs

Rcso

Decoded cooked numerics.

Constants

RCSB_MAGIC

Length-prefixed RCSO blobs for one collective (ADIOS BP5 grain: many frames).

RCSB_VERSION

Batch envelope version 1.

RCSO_DTYPE_F64

Positions/forces/velocities stored as f64.

RCSO_FLAG_FORCES

Bit 0: forces block present.

RCSO_FLAG_VELOCITIES

Bit 1: velocities block present.

RCSO_MAGIC

Four-byte magic. Identical to readcon-db.

RCSO_VERSION

Layout version 1.

Functions

decode_batch

Split an RCSB envelope into RCSO blobs.

encode_batch

Pack many RCSO blobs into one RCSB envelope (one Bcast).