Date: Thu, 14 Dec 2017 10:43:02 +0800 From: blubee blubeeme <gurenchan@gmail.com> To: galtsev@kicp.uchicago.edu Cc: FreeBSD <freebsd-questions@freebsd.org> Subject: Re: CUDA under FreeBSD Message-ID: <CALM2mEmqxCiHVDFXM3vT%2BE1aduZQk171ouM5QhrH5dgLXu_rqQ@mail.gmail.com> In-Reply-To: <22836.128.135.52.6.1513189941.squirrel@cosmo.uchicago.edu> References: <34331.107.77.207.211.1512384505.squirrel@cosmo.uchicago.edu> <0545699d-9df7-ced2-4990-27e3ecb8e531@ShaneWare.Biz> <BN6PR2001MB17307310025DD6DE64A563A9803D0@BN6PR2001MB1730.namprd20.prod.outlook.com> <22836.128.135.52.6.1513189941.squirrel@cosmo.uchicago.edu>
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On Thu, Dec 14, 2017 at 2:32 AM, Valeri Galtsev <galtsev@kicp.uchicago.edu> wrote: > On Tue, December 5, 2017 4:04 am, Carmel NY wrote: > > On Tuesday, December 5, 2017 2:53 AM, Shane Ambler stated: > >> On 04/12/2017 21:19, galtsev@kicp.uchicago.edu wrote: > >> > On Mon, December 4, 2017 4:24 am, Carmel NY wrote: > >> >> Out of morbid curiosity, I was wondering if anyone could tell me the > real reason that Nvidia does not support CUDA under > >> > > >> > Arrogance would be my guess. > >> The morbid part is that they give us the linux libcuda, so we should be > able to > >> run linux binaries that use cuda, just not native apps. > >> >> FreeBSD? Also, what are the realistic expectations for it getting > supported shortly? > >> > > >> > Zero is my estimate. The way to let one's steam about them is just > not > >> > to buy ther hardware. Their attitude to open sourse and unwillingness > to disclose details of their hardware was always much worse than that > of their competitors (ATI/AMD, matrox...). > >> > > >> > This is just my opinion based on my subjective observations. > > > > Personally, I have always considered Nvidia products to be superior. > > Well, this is just your subjective opinion opposing my subjective opinion. > With all due respect. > > I have seen nvidia chips giving artifacts (probably after mild overheat, > really just mild). I can not compare some product (to consider it superior > to another) if I can not use that product fully under variety of systems > _I_ use. And the last is true about nvidia video chips. As opposed to > variety of their competitors. > > At some point Apple agreed with me (well, of course independent on me made > up their opinion ;-). There were infamous MacBook Pro 15 inch made by > Apple somewhere around 2012. These contained discrete video chip by NVIDIA > (in addition to integrated on intel CPU substrate... I'm lying, it was > inside CPU case, but etched on different substrate...). Anyway, there was > some crap about that NVIDIA chip, so Apple didn't manage to make later > releases of MacOS work with later hardware and with that 2012 MacBook Pro, > kernel just crashed inside NVIDIA kernel module. Apple even had (really > short lived) program of replacing that hardware, realizing that this is > just crap. Program closed very quickly, so only small portion of bad > hardware was actually replaced. My guess is: nvidia decided not to carry > their side of financial losses. After which Apple made good IMHO decision, > and switched over to AMD (which are actually bought out by AMD well known > ATI). Incidentally, way back someone made excellent argument when > comparing ATI with NVIDIA. Here it is: NVIDIA releases new drivers (or > driver updates) almost monthly. ATI takes about half a year to release > driver. From which the conclusion can be made (which I fully agree with) > that ATI thoroughly tests and debugs drivers before releasing them (and > doesn't need to fix crap in the driver soon after release). Not true about > NVIDIA, whose drivers quite likely are much buggier. > > Anyway, just my observations, potentially a bit biased by the fact that > NVIDIA discloses much less about chip internals than, say, ATI (hence the > ability or lack of such by open source driver developers to write decent > open source drivers. > > > > >> I'm sure on an episode of bsdnow, they mentioned asking an nvidia dev > at > >> one of the conferences and they said there shouldn't be any technical > reason, it just isn't enabled in the build and they would look into it. > Still hasn't helped any. > > > > Which just confirms that individual developer is likely less arrogant than > a company as a whole. > > Well, all I said is just my subjective opinion based on my (by no means > thorough) observations. > > Valeri > > > Interesting. I was not aware of that. It would seem to me that there > should be more of an > > concerted effort to get this issue resolved. > > > > -- > > Carmel > > > > > ++++++++++++++++++++++++++++++++++++++++ > Valeri Galtsev > Sr System Administrator > Department of Astronomy and Astrophysics > Kavli Institute for Cosmological Physics > University of Chicago > Phone: 773-702-4247 > ++++++++++++++++++++++++++++++++++++++++ > > > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions- > unsubscribe@freebsd.org" > Here's a thorough overview of the history of ATI/AMD vs NVIDIA it's a three part but very good, for those who want to know. https://www.youtube.com/watch?v=_j6TiSdKT0A https://www.youtube.com/watch?v=Jd1bp9eSfwo https://www.youtube.com/watch?v=dE-YM_3YBm0
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