Dear Jong Hui,
I'm not an expert, but I'm pretty sure that deviceQueryDrv will do the
indexing based on the cards it sees (as set by CUDA_VISIBLE_DEVICES).
This means that there is probably nothing wrong with your setup, it is just
that your original "Device 1" will be called "Device 0" if you don't
include 0 in CUDA_VISIBLE_DEVICES.
--Marc
On 21 November 2012 10:42, 홍종희 <croshong.nate.com> wrote:
>
> Dear Amber users
>
>
> My name is jong hui hong in Korea
>
>
> Hi recently We have installed Amber12
>
>
> and It seems to works quiet well
>
>
> But in case of multiple GPU card system, our ssystem has a problem in
> selecting
>
>
> a specific GPU device
>
>
> suppose We have 3 GPU card
>
>
> [user1.cs-g ~]$ deviceQueryDrv -noprompt | egrep "^Device"
> Device 0: "Tesla C2075"
> Device 1: "Tesla C2075"
> Device 2: "Tesla C2075"
>
>
> If I wanto select device 0
>
> [user1.cs-g ~]$ export CUDA_VISIBLE_DEVICES="0"
> [user1.cs-g ~]$ deviceQueryDrv -noprompt | egrep "^Device"
> Device 0: "Tesla C2075"
>
> It;s OK
>
>
> But If I want select device 1
>
> [user1.cs-g ~]$ export CUDA_VISIBLE_DEVICES="1"
> [user1.cs-g ~]$ deviceQueryDrv -noprompt | egrep "^Device"
> Device 0: "Tesla C2075"
>
> even I set the CUDA_VISIBLE_DEVICES to 1
>
> It only shows Deice 0
>
>
> If I want to select device 0,1
>
> [user1.cs-g ~]$ deviceQueryDrv -noprompt | egrep "^Device"
> Device 0: "Tesla C2075"
> Device 1: "Tesla C2075"
>
>
> It show both of them
>
>
> But In case of I want to select device 0,2
>
> [user1.cs-g ~]$ export CUDA_VISIBLE_DEVICES="0,2"
> [user1.cs-g ~]$ deviceQueryDrv -noprompt | egrep "^Device"
> Device 0: "Tesla C2075"
> Device 1: "Tesla C2075"
>
>
> even I set CUDA_VISIBLE_DEVICES to 0,2
>
> It still shows device 0,1
>
>
> I think there's somethin's wrong with cuda setup in our system, but I
> can
> not manage at all..
>
>
> Any kind of suggestion would be reall appreciated.
>
>
> Best Regards
>
>
> Jong hui
>
>
> [?usn=13646389&email=croshong.nate.com
> &key=dc8a17ea8fa5db6b89fb11119905a9a4$
> 2d84fe89.mail3.nate.com]
> _______________________________________________
> AMBER mailing list
> AMBER.ambermd.org
> http://lists.ambermd.org/mailman/listinfo/amber
>
_______________________________________________
AMBER mailing list
AMBER.ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber
Received on Wed Nov 21 2012 - 03:30:02 PST
