prolly the FFT, where it is doubtlessly crucial. But it is almost all incs and decs, which kill core2.
Bill. 2009/3/6 <ja...@njkfrudils.plus.com>: > > > mpn_copy is hardly used in MPIR , so I dont understand how they could make > that much difference. > - Show quoted text - > On Friday 06 March 2009 01:09:57 Bill Hart wrote: >> Deleting them doesn't make any difference that I can see. mpirbench is >> still 15600 on my Opteron, which is what I think it was before. >> >> Bill. >> >> 2009/3/6 Bill Hart <goodwillh...@googlemail.com>: >> > Doing that right now. >> > >> > 2009/3/6 <ja...@njkfrudils.plus.com>: >> >> On Friday 06 March 2009 00:56:42 Bill Hart wrote: >> >>> That was it. Time jumps back to 10300 if I delete those two files. >> >>> >> >>> I recommend getting rid of those, or optimising them. :-) >> >>> >> >>> Phew!! >> >> >> >> I moved them as fat build needs a native copyi/d , if not we have to >> >> write a wrapper like for mul_basecase , no problem, I'll do it in a mo >> >> I'm more surprised they make that much difference , I think we better >> >> check they are faster on AMD as well?? >> > >> > - Show quoted text - >> > >> >> - Show quoted text - >> >> >> >>> Bill. >> >>> >> >>> 2009/3/6 <ja...@njkfrudils.plus.com>: >> >>> > On Friday 06 March 2009 00:33:57 Bill Hart wrote: >> >>> >> I checked all the speed times we have for this machine and they've >> >>> >> not changed. But something is broken. Before the commit you did we >> >>> >> have 10100, now 9500. Of course before the yasm changeover it was >> >>> >> 10300. >> >>> > >> >>> > r1671 I moved amd copyi/d to x86_86 directory , so now they are >> >>> > used on core2 , but even if they were junk , you wouldn't get a >> >>> > slowdown like that >> >>> > >> >>> > I'm mystified >> >>> > - Show quoted text - >> >>> > >> >>> >> And yeah, I mean mpirbench. >> >>> >> >> >>> >> Bill. >> >>> >> >> >>> >> 2009/3/6 <ja...@njkfrudils.plus.com>: >> >>> >> > On Thursday 05 March 2009 23:02:50 Bill Hart wrote: >> >>> >> >> I just don't get this. We are 10% down on what we had before on >> >>> >> >> sage.math. I've tried deleting the files that you say we being >> >>> >> >> left out before and that doesn't change anything. >> >>> >> > >> >>> >> > Welcome to the wacky world of assembler !!!!! >> >>> >> > >> >>> >> >> What else got changed? >> >>> >> > >> >>> >> > I assume you mean mpirbench ? >> >>> >> > I cant see any differences in times for speed for >> >>> >> > add,mul,mulbase,sqrbase - Show quoted text - >> >>> >> > >> >>> >> >> Bill. >> >>> >> >> >> >>> >> >> 2009/3/5 <ja...@njkfrudils.plus.com>: >> >>> >> >> > On Thursday 05 March 2009 21:05:32 Bill Hart wrote: >> >>> >> >> >> Yeah I suspect we'll have lot's of opportunity to speed up >> >>> >> >> >> core 2 eventually. >> >>> >> >> >> >> >>> >> >> >> If I recall correctly it was about 4.5 c/l for core 2. Does >> >>> >> >> >> anyone know if this is optimal? >> >>> >> >> > >> >>> >> >> > I've got a 4.4c/l , Agner Fog's says the thruput on 64 bit mul >> >>> >> >> > is 4c/l , but in another section it says you can issue one >> >>> >> >> > every cycle , if the latter section means 32bit then , 4c/l >> >>> >> >> > could be right ( I say could not would as consider the K8) , I >> >>> >> >> > expect I can do a bit better than 4.4c/l , but who knows.A lot >> >>> >> >> > of the speed comes from reducing the overhead in mul_basecase. >> >>> >> >> > >> >>> >> >> > It quite a wide cpu , I would expect the combined >> >>> >> >> > functions(like addlsh1) to make a real difference on it. >> >>> >> >> > - Show quoted text - >> >>> >> >> > >> >>> >> >> >> Supposedly you can do 4 or even 5 instructions at once with >> >>> >> >> >> instruction fusion. >> >>> >> >> >> >> >>> >> >> >> Bill. >> >>> >> >> >> >> >>> >> >> >> On 05/03/2009, ja...@njkfrudils.plus.com >> >>> >> >> >> <ja...@njkfrudils.plus.com> >> >>> >> > >> >>> >> > wrote: >> >>> >> >> >> > the functions missed out were >> >>> >> >> >> > addadd >> >>> >> >> >> > addsub >> >>> >> >> >> > addlsh >> >>> >> >> >> > sublsh >> >>> >> >> >> > the 2% due to them is not bad , considering they were >> >>> >> >> >> > written for an AMD chip. >> >>> >> >> >> > The other new functions like redc,sumdiff are used >> >>> >> >> >> > unconditionally >> >>> >> >> >> > >> >>> >> >> >> > I think sumdiff is still in the optional section of >> >>> >> >> >> > configure , must change this some time , it's confusing , >> >>> >> >> >> > but it doesn't hurt. >> >>> >> >> >> > >> >>> >> >> >> > On Thursday 05 March 2009 18:42:20 Bill Hart wrote: >> >>> >> >> >> >> If the mpirbench is about 10300 on sage.math then it >> >>> >> >> >> >> worked. >> >>> >> >> >> >> >> >>> >> >> >> >> I can't check it till I'm home. >> >>> >> >> >> >> >> >>> >> >> >> >> Bill. >> >>> >> >> >> >> >> >>> >> >> >> >> On 05/03/2009, ja...@njkfrudils.plus.com >> >>> >> >> >> >> <ja...@njkfrudils.plus.com> >> >>> >> >> >> >> >> >>> >> >> >> >> wrote: >> >>> >> >> >> >> > commited , and I think I should be >> >>> >> >> >> >> > >> >>> >> >> >> >> > On Thursday 05 March 2009 17:50:59 >> >>> >> >> >> >> > ja...@njkfrudils.plus.com >> >>> > >> >>> > wrote: >> >>> >> >> >> >> >> Done it , just cant commit at the moment !!! >> >>> >> >> >> >> >> >> >>> >> >> >> >> >> On Thursday 05 March 2009 17:43:04 Bill Hart wrote: >> >>> >> >> >> >> >> > Damnit I am still not getting anything in config.h. I >> >>> >> >> >> >> >> > must be doing something wrong. I'm going to let Jason >> >>> >> >> >> >> >> > fix this. Perhaps dos2unix isn't doing the job. >> >>> >> >> >> >> >> > >> >>> >> >> >> >> >> > I have to go out for a few hours. >> >>> >> >> >> >> >> > >> >>> >> >> >> >> >> > Bill. >> >>> >> >> >> >> >> > >> >>> >> >> >> >> >> > 2009/3/5 Bill Hart <goodwillh...@googlemail.com>: >> >>> >> >> >> >> >> > > It's not clear to me why WinSCP didn't change the >> >>> >> >> >> >> >> > > line endings. It probably didn't identify the files >> >>> >> >> >> >> >> > > as text files. >> >>> >> >> >> >> >> > > >> >>> >> >> >> >> >> > > Bill. >> >>> >> >> >> >> >> > > >> >>> >> >> >> >> >> > > 2009/3/5 Bill Hart <goodwillh...@googlemail.com>: >> >>> >> >> >> >> >> > > - Show quoted text - >> >>> >> >> >> >> >> > > >> >>> >> >> >> >> >> > >> Should do the same for all files in >> >>> >> >> >> >> >> > >> /mpn/x86_64/core2, /mpn/x86_64/amd64 and >> >>> >> >> >> >> >> > >> /mpn/x86_64/amd64/k10 >> >>> >> >> >> >> >> > >> >> >>> >> >> >> >> >> > >> It's just a matter of running dos2unix *.as in each >> >>> >> >> >> >> >> > >> dir I think. >> >>> >> >> >> >> >> > >> >> >>> >> >> >> >> >> > >> Bill. >> >>> >> >> >> >> >> > >> >> >>> >> >> >> >> >> > >> 2009/3/5 <ja...@njkfrudils.plus.com>: >> >>> >> >> >> >> >> > >>> On Thursday 05 March 2009 17:37:31 Cactus wrote: >> >>> >> >> >> >> >> > >>>> On Mar 5, 5:37 pm, ja...@njkfrudils.plus.com > wrote: >> >>> >> >> >> >> >> > >>>> > must be Brian script , they are all full of >> >>> >> >> >> >> >> > >>>> > "\r" which of course means the matching name is >> >>> >> >> >> >> >> > >>>> > mpn_name\r not mpn_name removing the "\r" is >> >>> >> >> >> >> >> > >>>> > easy on all files, but we will probably hit the >> >>> >> >> >> >> >> > >>>> > problem again , and/or I can put a tr -d "\r" >> >>> >> >> >> >> >> > >>>> > to delete all "\r" in that specific piece of >> >>> >> >> >> >> >> > >>>> > configure We could hit the problem in other >> >>> >> >> >> >> >> > >>>> > places!!! >> >>> >> >> >> >> >> > >>>> >> >>> >> >> >> >> >> > >>>> Only because you got me to run it on Windows. My >> >>> >> >> >> >> >> > >>>> guess is that it >> >>> >> >> >> >> >> > >>>> would produce the right line endings if the >> >>> >> >> >> >> >> > >>>> Python code was run on Linux >> >>> >> >> >> >> >> > >>> >> >>> >> >> >> >> >> > >>> Great , if it only those few that Bill asked you >> >>> >> >> >> >> >> > >>> to convert , then >> >>> >> >> >> >> >> > >>> I'll delete the \r and leave the configure script >> >>> >> >> >> >> >> > >>> alone - Show quoted text - >> >>> >> >> >> >> >> > >> >> >>> >> >> >> >> >> > >> - Show quoted text - >> >>> >> >> >> >> >> > >> >> >>> >> >> >> >> >> > >>>> Brian >> >> > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "mpir-devel" group. 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