Re: C99 and GMP

> I'd like to move to C99 soon. Nice. Any particular C99 features you'd like to use? Some of the features (from the list on https://en.wikipedia.org/wiki/C99): I am aware of that there are no compelling features provided with C99, and that the ones at all relevant to us will not bring new

Re: How large are arbitrarily large integers? (Was Re: Bitfield subtlety)

On 2018-03-29 11:27:24 +0200, Niels Möller wrote: > Richard Biener writes: > > > I would be surprised if that wouldn't work everywhere - any reason > > you have doubts? To clarify, allocation would work like > > > > void *ptr = malloc (... + sizeof (size_t)); > > ->_mp_d =

Re: C99 and GMP

Ciao, Il Mer, 4 Aprile 2018 9:00 am, Niels Möller ha scritto: > t...@gmplib.org (Torbjörn Granlund) writes: >> I'd suggest to make a 6.2 release of pretty much what we have today. > > Sounds good to me. Looking through my entries in ChangeLog, most > interesting change was the merge of my changes

Re: Any interest in multi-threaded code?

Presumably, that idea will work. But based on my experience with multi-threading, because of various overheads and latencies involved, you have to make sure that there is enough work to do per thread to make it worthwhile. Parallelizing the inner loops like this may or may not yield the expected

Re: Any interest in multi-threaded code?

"Richard Foster" writes: > Even it looks OK in today's code, does Nisse's new FFT code change > anything? The small-prime FFT code uses fft-based multiplication of polynomials over Z_p for a couple of single-limb primes p. Usually in the range from 3 to 5 primes, depending on

Re: Any interest in multi-threaded code?

Hi all, Since this FFT code is sitting around, I wonder if there's a chance I could adapt it to NTL. I've actually implemented David Harvey's ideas a few years ago (and his work is actually based on older NTL logic which I never really publicized). NTL currently only uses special types like

Re: Any interest in multi-threaded code?

Hi It is probably not useful to work much on the current FFT code. We have long planned--and worked quite a bit on--replacement FFT code with much better memory access pattern. The replacement code works with multiple small coefficient fields instead of a large ring. It also implements

Re: Any interest in multi-threaded code?

Victor Shoup writes: > So I guess I'm just asking where the FFT code is at and if there would be any > objections to my using it in that way. Here: https://gmplib.org/repo/gcd-nisse/ The relation to gcd is that subquadratic gcd includes multiplication of 2x2 matrices, and I

Re: Any interest in multi-threaded code?

Thanks! > On Apr 4, 2018, at 4:53 PM, Niels Möller wrote: > > Victor Shoup writes: > >> So I guess I'm just asking where the FFT code is at and if there would be >> any objections to my using it in that way. > > Here:

Re: C99 and GMP

t...@gmplib.org (Torbjörn Granlund) writes: > I'd like to move to C99 soon. Nice. Any particular C99 features you'd like to use? Some of the features (from the list on https://en.wikipedia.org/wiki/C99): * Better floating point support (e.g., standardized float.h). * Standard inline (with