AW: All CUDA devices are in prohibited mode, of compute capability 1.0, or otherwise unusable.

From: Norman Geist (
Date: Fri Aug 16 2013 - 00:22:44 CDT

The manufacturers produce the boards and put the case around the card, but
keep the properties untouched, as nvidia produces the gpus. Gigabyte for
example often improves cooling. For instance the gtx560 by pny has one fan,
the gigabyte has two. If a card is an overclocked one or otherwise changed,
it will normally have a special pre-/suffix like "Ti". But you are right,
one shouldn't take the hardcore gamer overclocked gpus, as they can lack of
warranty and stability and need proper cooling. Additionally, if one wants
to put some computing power in his office/lab, without wanting to build a
expensive cluster, it's best to get a machine with many pcie x16 slots as
possible and multiple cpu sockets. In that way you can simply add and
replace cards without any need for a hpc network and be able to run multiple
simulations on one machine, having almost no interfering and a lot of power.


Norman Geist.


Von: Lucas []
Gesendet: Freitag, 16. August 2013 00:26
An: Norman Geist
Cc: Namd Mailing List
Betreff: Re: namd-l: All CUDA devices are in prohibited mode, of compute
capability 1.0, or otherwise unusable.


2013/8/15 Norman Geist <>

The Ti has about 30% better performance, similar factor for the pricing.
Same for the 700 series models. The pricing almost scales perfectly with the
performance, except of the faster memory in the newer series. So at least it
doesn't really matter.


Another thing that confuses me is that not only there are countless models
to choose from, but actually different manufacturers for the same model too
- the GTX 660 Ti model for example is available from EVGA, ASUS, MSI and
Gigabyte, with prices ranging from $239 to $312. I've been reading the
reviews comparing them, but most seem to be directed to the gaming
community, who may have different needs when compared to us (it seems most
of the difference is about "overclocking", which may be a good thing for a
gamer but perhaps not for someone who actually needs consistency through
much longer running processes). I know this is going off-topic, but I'd be
thankful for more advice about it.

Best regards,

This archive was generated by hypermail 2.1.6 : Wed Dec 31 2014 - 23:21:32 CST