Benchmarks Game/Parallel: Difference between revisions
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Quad-core enabled parallel Haskell benchmark entries, for | Quad-core enabled parallel Haskell benchmark entries, for | ||
the [http://shootout.alioth.debian.org/u64q/benchmark.php?test=all&lang=all 64 bit quad core | the [http://shootout.alioth.debian.org/u64q/benchmark.php?test=all&lang=all 64 bit quad core benchmarks game]. | ||
== Advice == | == Advice == | ||
* Check the GC stats with +RTS -sstderr -RTS, if that number if over 5%, use -HxxxM to set a better default heap size. (Note *this is probably not permitted by the " | * Check the GC stats with +RTS -sstderr -RTS, if that number if over 5%, use -HxxxM to set a better default heap size. (Note *this is probably not permitted by the "initial allocation area rule" for the binary-trees benchmark). | ||
* Use N capabilities for SMP, e.g. +RTS -N4 -RTS, for the quad core. | * Use N capabilities for SMP, e.g. +RTS -N4 -RTS, for the quad core. | ||
* Take the single threaded, fast programs and | * Take the single threaded, fast programs and parallelise them | ||
* Parallel strategies are the lightest way to add SMP capabilities. | * Parallel strategies are the lightest way to add SMP capabilities. | ||
* Contact dons or sbahra on #haskell for access to a quad or eight-way benchmark machine, before uploading. | * Contact dons or sbahra on #haskell for access to a quad or eight-way benchmark machine, before uploading. |
Latest revision as of 22:12, 11 January 2013
Quad-core enabled parallel Haskell benchmark entries, for the 64 bit quad core benchmarks game.
Advice
- Check the GC stats with +RTS -sstderr -RTS, if that number if over 5%, use -HxxxM to set a better default heap size. (Note *this is probably not permitted by the "initial allocation area rule" for the binary-trees benchmark).
- Use N capabilities for SMP, e.g. +RTS -N4 -RTS, for the quad core.
- Take the single threaded, fast programs and parallelise them
- Parallel strategies are the lightest way to add SMP capabilities.
- Contact dons or sbahra on #haskell for access to a quad or eight-way benchmark machine, before uploading.
- See if you can use the new parallel GC to good effect: no entries currently do.
Parallel Programs
- /BinaryTrees and /BinaryTreesDPH
- /Chameneos
- /Fannkuch
- /Mandelbrot
- /RegexDNA
- /SpectralNorm
- /ThreadRing
- /Knucleotide
Not yet parallelised
- /Fasta
- /MeteorContest
- /NBody
- /Pidigits (note GHC 6.10.1 has a GC bug illustrated by this program)
- /ReverseComplement