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| In this page we post the official release notes and changelogs related to Prime95 30.7 build 4 - Linux 64-bit, if and as software developers make available these. However, if you need more info on Prime95 30.7 build 4 - Linux 64-bit, or relases notes are not available yet, you can always consider to read its description as well. |
| Prime95 30.7 build 4 - Linux 64-bit |
| New features in Version 30.7 of prime95.exe ------------------------------------------- 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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