Hi fwjmath, I have now fixed the duplicate symbol issue you were seeing, in our master branch. The actual assembly files themselves contained the wrong symbol names, doubtless due to copy and paste error.
If you build using MinGW or Cygwin at present you need to do autoreconf -fiv before running configure. This extra step won't be necessary in the final release, due out within days. I hope this fixes the issue for you. Bill. On 27 February 2014 14:19, fwjmath <fwjm...@gmail.com> wrote: > Hi all, > > I am cooperating with a volunteer computing project (yoyo@home, if anyone > knows it), and I need MPIR to build a performance-crucial application on > Windows that will be run on heterogenous CPU. The last version I built also > uses MPIR, and I am really grateful of all your work. > > This time, since the performance of the arbitrary-precision arithmetic is > extremely important, a fat binary is needed. I downloaded the master branch > from Git, and I used mingw64 on msys as build environment, with the > following option for configure > > ./configure --disable-fft --disable-shared --enable-fat > > The "make" and "make check" were successful, but when compiling the > application, mingw64-g++ hinted that there are duplicated symbols, namely > g?mpn_k8_redc_1 in mpn/bobcat/redc_1.asm and ?mpn_core2_redc_1 in > mpn/sandybridge/redc_1.asm. I did a renaming to get rid of this problem, > and the application compiles. > > But then when I tested it against another build with the following option > > ./configure --disable-fft --disable-shared > > the fat binary is slower by about 10%. Furthermore, comparing to GMP on > cygwin64, there is also a large slowdown. Here are some rough timing: > > msys-mpir-fat ~60min > msys-mpir-nofat ~55min > cygwin64-gmp-nofat ~40min > > I was not able to build MPIR on cygwin, it was more or less stucked when > building libmpn.la with libtool. I have used the --with-system-yasm > option (or else it complains on cygwin-style symbolic links). > > The build environment: > CPU: i7 3720QM (Ivy Bridge) > Memory: 8GB > MPIR version: 2014-02-26 > Mingw64 version: gcc-4.8.2 > Msys version: 2011-11-23 > > I would deeply appreciate any useful suggestion. Thank you in advance! > > Cheers, > fwjmath. > > -- > You received this message because you are subscribed to the Google Groups > "mpir-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to mpir-devel+unsubscr...@googlegroups.com. > To post to this group, send email to mpir-devel@googlegroups.com. > Visit this group at http://groups.google.com/group/mpir-devel. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "mpir-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to mpir-devel+unsubscr...@googlegroups.com. To post to this group, send email to mpir-devel@googlegroups.com. Visit this group at http://groups.google.com/group/mpir-devel. For more options, visit https://groups.google.com/d/optout.
