Fwd: Total vs per-cpu memory
Sorry for the mistake, although otherwise clear from the context: 16GB total is
correct as there are 4GB per cpu.
--- Francesco Pietra <firstname.lastname@example.org> wrote:
> Date: Thu, 31 Jan 2008 07:39:43 -0800 (PST)
> From: Francesco Pietra <email@example.com>
> Subject: Total vs per-cpu memory
> To: debian64 <firstname.lastname@example.org>
> This question is related to problems in running a docking computation. With
> cases, RAM proves insufficient, resulting in immediate "segmentation fault",
> 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
> 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
> francesco pietra
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