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 Release notes  Prime95 30.7 build 7 - Windows 64-bit  |
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| In this page we post official release notes and changelogs related to Prime95 30.7 build 7 - Windows 64-bit, if and as software developers make available these. However, if you need more info on Prime95 30.7 build 7 - Windows 64-bit, or relases notes are not available yet, you can always consider to read its description as well. |
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1) Better prime pairing in stage 2 of ECM/P-1/P+1. This usually results in slightly better
stage 2 timings or less memory used. Save file formats changed - upgrading to 30.7 while
ECM/P-1/P+1 work is in stage 2 will result in stage 2 being restarted from scratch.
2) P-1 converted to use P+1 style stage 2. From the users perpective there is no difference.
Internally a modular inverse is required at stage 2 init, but there is one multiplication
saved for every D-block processed. For all common P-1 cases, this is a little faster.
3) ECM/P-1/P+1 no longer use a bit map for prime pairs. Instead a compressed pairing map is
created to save memory. For large B2 values this also results in fewer calls to generate
pairing maps. It also makes stage 2 save files smaller.
4) Some minor changes in AVX-512 FFT crossovers. ECM/P-1/P+1 all changed to rollback to the
last save file and switch to a larger FFT size should an excessive roundoff error be
encountered.
5) Support for asymmetric processor architectures such as Intel's Alder Lake.
6) Torture test dialog now asks for number of cores to test along with a "Use hyperthreading"
checkbox. Previously, the dialog box asked for total number of torture threads to execute.
7) Versions 30.4/30.5/30.6 were underestimating the cost of P-1 stage 2 relative to P-1 stage 1.
Expect this version to use lower stage 2 bounds in P-1.
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