On Tue, May 28, 2013 at 10:14 AM, James Starlight <[email protected]> wrote: > I've found GTX Titat with 6gb of RAM and 384 bit. The price of such card is > equal to the price of the latest TESLA cards.
Nope! Titan: $1000 Tesla K10: $2750 Tesla K20(c): $3000 TITAN is cheaper than any Tesla and the fastest of all NVIDIA GPUs (in most cases). > Could it give me better performance in gromacs ? The GROMACS GPU kernels are ~40% faster than on a GTX 680 and ~25% faster than a K20, but when it comes to total performance, the differences will obviously be smaller. > Also assuming that 1 such card need 600 WATT power supply what supply I > need for desktop with two such cards? Nope. The peak power consumption of a TITAN is 250W and in compute-only applications I doubt it draws more than max 70-80% of that. With GROMACS as the GPU is only busy at most 70-80% of the time, the effective consumption will scale roughly with those numbers. You should use one of the online PSU calculators. > > 2013/5/28 Ehud Schreiber <[email protected]> > >> I have nothing to contribute regarding the CPUs, but note that last week >> Nvidia introduced the GTX 780 GPU (a "Titan lite"), and this week it is >> expected to introduce the GTX 770 one (probably an "overclocked 680"). >> Therefore, disregarding possible price issues, it seems that the GTX 680 >> may not be the best option. >> >> >> >> >Date: Mon, 27 May 2013 14:14:51 +0400 >> >> >From: James Starlight <[email protected]<mailto: >> [email protected]>> >> >> >Subject: Re: Re: Re: [gmx-users] GPU-based workstation >> >> >To: Discussion list for GROMACS users <[email protected]<mailto: >> [email protected]>> >> >> >Message-ID: >> >> > <CAALQopymnZm5r+3q4LK_ncM= >> [email protected]<mailto:CAALQopymnZm5r+3q4LK_ncM= >> [email protected]>> >> >> >Content-Type: text/plain; charset=ISO-8859-1 >> >> > >> >> >On Nvidia benchmarks I've found suggestions of using of the two 6 cores >> CPU for systems with the 2 GPU. >> >> > >> >> >Assuming that I'll be using two 680 GTX cards with 256 bits and 4gb ram >> (not a profesional nvidia cards like TESLA) what CPU's >could give me the >> best performance- 1 i7 of 8 cores or 2 Xeons e5 with 6 cores ? Does it >> meaningful to use 2 separate CPU's with >several nodes each for the 2 GPU's >> ? >> >> > >> >> >James >> >> -- >> gmx-users mailing list [email protected] >> http://lists.gromacs.org/mailman/listinfo/gmx-users >> * Please search the archive at >> http://www.gromacs.org/Support/Mailing_Lists/Search before posting! >> * Please don't post (un)subscribe requests to the list. Use the >> www interface or send it to [email protected]. >> * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists >> > -- > gmx-users mailing list [email protected] > http://lists.gromacs.org/mailman/listinfo/gmx-users > * Please search the archive at > http://www.gromacs.org/Support/Mailing_Lists/Search before posting! > * Please don't post (un)subscribe requests to the list. Use the > www interface or send it to [email protected]. > * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists -- gmx-users mailing list [email protected] http://lists.gromacs.org/mailman/listinfo/gmx-users * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/Search before posting! * Please don't post (un)subscribe requests to the list. Use the www interface or send it to [email protected]. * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists
