Name		Name	Last commit message	Last commit date
parent directory ..
src		src
volta		volta
Cargo.toml		Cargo.toml
benchmark.sh		benchmark.sh
build.rs		build.rs
readme.md		readme.md

readme.md

Stencil

This is the generic stencil ISPC benchmark.

Usage

cargo run --release --features=ispc

will run all benchmarks including the ISPC ones.

Results

./benchmark.sh

On a dual core AVX1 i5 @1.8 GHz:

800 x 600	time [ms] Rust	speedup vs `scalar` [-]
`scalar`	2842	1.0x
`vector`	630	4.5x
`vector_par`	444	6.4x
`ispc`	558	5.0x
`ispc_tasks`	470	6.0x

vector_par is 1.06x faster than ispc_tasks.

On a 28 core Xeon CPU E5-2690 v4 @ 2.60GHz:

800 x 600	time [ms] Rust	speedup vs `scalar` [-]
`scalar`	1499	1.0x
`vector`	276	5.4x
`vector_par`	167	9.0x
`ispc`	287	5.2x
`ispc_tasks`	395	3.8x

vector_par is 1.72x faster than ispc_tasks.

On a 40 core Xeon Gold 6148 CPU @ 2.40GHz:

800 x 600	time [ms] Rust	speedup vs `scalar` [-]
`scalar`	1654	1.0x
`vector`	278	6.0x
`vector_par`	148	11.2x
`ispc`	185	9.0x
`ispc_tasks`	401	4.1x

vector_par is 1.25x faster than ispc.