Everyone, I'm pleased to annouce that a new version of GMPY is available. GMPY is a wrapper for the MPIR or GMP multiple-precision arithmetic library. GMPY 1.11rc1 is available for download from:
http://code.google.com/p/gmpy/ In addition to support for Python 3.x, there are several new features in this release: - Even faster conversion to/from Python longs. - Performance improvements by reducing function overhead. - Performance improvements by improved caching. - Support for cdivmod, fdivmod, and tdivmod. - Unicode strings are accepted on Python 2.x and 3.x. - Fixed regression in GMPY 1.10 where True/False were no longer recognized. Comments on provided binaries The 32-bit Windows installers were compiled with MinGW32 using MPIR 1.3.0rc3 and will automatically recognize the CPU type and use code optimized for the CPU at runtime. The 64-bit Windows installers were compiled Microsoft's SDK compilers using MPRI 1.3.0rc3. Detailed instructions are included if you want to compile your own binary. Future plans On releasing the GIL: I have compared releasing the GIL versus the multiprocessing module and the multiprocessing module offers better and more predictable performance for embarrassingly parallel tasks than releasing the GIL. If there are requests, I can add a compile- time option to enable threading support but it is unlikely to become the default. On mutable integers: The performance advantages of mutable integers appears to be 20% to 30% for some operations. I plan to add a new mutable integer type in the next release of GMPY. If you want to experiment with mutable integers now, GMPY can be compiled with mutable version of the standard 'mpz' type. Please see the file "mutable_mpz.txt" for more information. Please report any issues! casevh -- http://mail.python.org/mailman/listinfo/python-list
