Fwd: Total vs per-cpu memory

From: Francesco Pietra <chiendarret(at)yahoo.com>
Date: Thu Jan 31 2008 - 10:52:12 EST

Sorry for the mistake, although otherwise clear from the context: 16GB total is correct as there are 4GB per cpu.
francesco

• Francesco Pietra <chiendarret@yahoo.com> wrote:

> Date: Thu, 31 Jan 2008 07:39:43 -0800 (PST)
> From: Francesco Pietra <chiendarret@yahoo.com>
> Subject: Total vs per-cpu memory
> To: debian64 <debian-amd64@lists.debian.org>
>
> This question is related to problems in running a docking computation. With
> big
> cases, RAM proves insufficient, resulting in immediate "segmentation fault",
> so
> that "top" cannot inform. Though, from the code it is clear that memory is
> insufficient to rotate the object in a non-parallelized part of the program.
> Smaller objects do not give problems.
>
> My question is: with Tyan S2895 Thunder K8WE, two dual opterons and 1GB RAM
> per
> cpu (amd64 etch), are the 16GB available to the single cpu involved in the
> computation, or are 4GB available?
>
> Memory was set with shmmax:
>
> kernel.shmmax = 16000000000
> kernel.shmall = 16000000000
>
> sysctl -p
>
> Thanks
> francesco pietra
>
>
>
>

---

> Never miss a thing. Make Yahoo your home page.
> http://www.yahoo.com/r/hs
>

---

Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs

-- 
To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org 
with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org

Received on Thu Jan 31 11:15:47 2008