stable

primecount-6.3-1.fc34

FEDORA-2021-452c43ebc0 created by jjames 2 years ago for Fedora 34

Changes in primecount 6.3:

This is a minor new release, the API and ABI (Application binary interface) are backwards compatible.

The memory usage of the PiTable and SegmentedPiTable has been reduced by about 2x, this speeds up the computation of the easy special leaves (S2_easy & AC formulas) by up to 30% for large pi(x) computations with x ≥ 1e23. Furthermore, the partial sieve function a.k.a. phi(x, a) has been improved significantly, it now runs 3 to 5x faster for most input. phi(x, a) is used extensively by many other functions such as pi_legendre(x) and pi_meissel(x) which now also run up to 5x faster.

  • PiTable.cpp: Reduce memory usage by 2x.
  • SegmentedPiTable.cpp: Reduce memory usage by 2x.
  • Sieve.cpp: Reduce memory usage of counters array by 2x.
  • phi.cpp: Fixed integer overflow #39.
  • phi.cpp: Cache 40x more phi(x, a) results.
  • phi.cpp: Use pi(x) if a > pi(sqrt(x)).
  • phi.cpp: Use larger c constant if phi(x, larger_c) is cached.
  • generate_phi.hpp: Same optimizations as phi.cpp.
  • LoadBalancer.cpp: Tune for new phi(x, a) implementation.
  • FactorTable.hpp: Reduce number of branches.
  • DFactorTable.hpp: Reduce number of branches.

How to install

Updates may require up to 24 hours to propagate to mirrors. If the following command doesn't work, please retry later:

sudo dnf upgrade --refresh --advisory=FEDORA-2021-452c43ebc0

This update has been submitted for testing by jjames.

2 years ago

This update's test gating status has been changed to 'ignored'.

2 years ago

This update's test gating status has been changed to 'waiting'.

2 years ago

This update's test gating status has been changed to 'ignored'.

2 years ago

This update has been pushed to testing.

2 years ago

This update can be pushed to stable now if the maintainer wishes

2 years ago

This update has been submitted for stable by bodhi.

2 years ago

This update has been pushed to stable.

2 years ago

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Metadata
Type
enhancement
Karma
0
Signed
Content Type
RPM
Test Gating
Settings
Unstable by Karma
-3
Stable by Karma
3
Stable by Time
3 days
Dates
submitted
2 years ago
in testing
2 years ago
in stable
2 years ago

Automated Test Results