ecm-7.0.5.tar.gz

Changes between GMP-ECM 7.0.3 and 7.0.4:

• fixed a bug in mpres_pow: https://gforge.inria.fr/tracker/?func=detail&atid=623&aid=20712&group_id=135
• fixed a bug with P-1 or P+1 and small B2
• improved portability (OS X, Windows, Cygwin, non GNU ld)
• fixed make longcheck with out-of-source build

ecm-7.0.4.tar.gz

Changes between GMP-ECM 7.0.2 and GMP-ECM 7.0.3:

• fixed compilation issue on powerpc64

ecm-7.0.3.tar.gz

Changes between GMP-ECM 7.0.1 and GMP-ECM 7.0.2:

• fixed bug in P-1/P+1 stage 2 and -redc when -1/N mod R has less than n limbs

ecm-7.0.2.tar.gz

Changes between GMP-ECM 7.0 and GMP-ECM 7.0.1:

• fixed efficiency issue with divisors of 2^n+/-1
• allow for larger B1 values on Windows computers in batch mode
• several fixes on Debian (FreeBSD, powerpc64)
• fixed save files generated by gpu-ecm
• fixed issue with gcc-5 (CC/CFLAGS from gmp.h were no longer used)
• updated longlong.h file from GMP 6.1.0
• fixed some compiler warnings

ecm-7.0.1.tar.gz

Changes between GMP-ECM 6.4.4 and GMP-ECM 7.0:

• GMP-ECM is now thread-safe. In particular the "ecmfactor" binary can be called with say -t 17 to use 17 threads.
• Added GPU code for Step 1 (command-line option -gpu).
• Command-line option -param allows to choose the parametrization (valid values are 0, 1, 2, 3). Command-line option -sigma allows to choose the parameter. "-sigma i:s" is a shortcut to "-param i -sigma s". Use -param 0 to get historical Suyama parametrization.
• The batch mode is now chosen with -param command-line option. The default parametrization depends on other command-line options.
• For P-1 stage 2, by default the NTT code is always used.
• Speedup in stage 2 with -no-ntt
• New primality proving code with APRCL (contributed by David Cleaver) with --enable-aprcl (default=yes)
• Removed some options that were unused or not tested (-n, -nn, -ve, -cofdec, -B2scale).
• The configure --enable-shellcmd option was removed, and also the --enable-memory-debug configure option (now obsolete with valgrind).
• The -b options was removed (breadth-first mode)
• Improved source coverage (92.7% of source code lines)

ecm-7.0.tar.gz

Changes between GMP-ECM 6.4.3 and GMP-ECM 6.4.4:

• Fixed PowerPC64 assembly code with --enable-shared (thanks Leif Leonhardy)
• Fix to deal with change of semantics of internal GMP functions in GMP 5.1
• Fixed small memory leak in non-NTT P-1 stage 2
• Fixed segfaults with large non-NTT P+-1 stage 2
• Removed defunct -t command line option

ecm-6.4.4.tar.gz

Fixes incorrect NTT arithmetic on Windows systems with large input numbers

ecm-6.4.3.tar.gz

Changes between ecm-6.4.1 and ecm-6.4.2:

• Corrected the copyright headers
• Reduced memory usage in stage 1 with -batch={1,2} mode.
• Fixed bug in modular reduction (could occur only for numbers larger than 386 digits on 64-bit computers and 193 digits on 32-bit computers).
• Speedup in stage 2 with the NTT default mode

ecm-6.4.2.tar.gz