pin_workers: Pin shard workers to CPU cores

In shard: Deterministic, Zero-Copy Parallel Execution for R

Pin shard workers to CPU cores

Description

Best-effort worker pinning to improve cache locality and reduce cross-core migration. Currently supported on Linux only.

Usage

pin_workers(pool = NULL, strategy = c("spread", "compact"), cores = NULL)

Arguments

pool	Optional shard_pool. Defaults to current pool.
strategy	"spread" assigns worker i -> core i mod ncores. "compact" assigns workers to the first cores.
cores	Optional integer vector of available cores (0-based). If NULL, uses 0:(detectCores()-1).

Value

Invisibly, a logical vector per worker indicating success.

Examples

affinity_supported()

shard documentation built on April 3, 2026, 9:08 a.m.