[Pw_forum] Memory usage estimate of the calculation

[Paolo Giannozzi]

Yes, those are "Megabytes", not "Megabits"

Paolo

On Thu, Jan 5, 2017 at 12:25 AM, Jun Jiang <jiangjun413 at gmail.com> wrote:

> Dear All,
>
> I was running the qe6.0 (pw.x)
> I find the memory usage estimate in the output files like below
> "
>
> Estimated max dynamical RAM per process > 3207.98Mb
> Estimated total allocated dynamical RAM > 153983.19Mb
> "
> To make full use of the RAM and CPU, is it means if I allocated 3208 MB
> /cpu and 153984 MB in total for the job, it would be enough for this
> calculation ?
> If the real RAM usage would be larger than that, how much should I add to
> this estimation or how to estimated the other part ?
>
> PS: Is this "Mb" in the code means Megabyte(MB) or Megabit(Mb), I think it
> should be Megabyte(MB).
>
> Thanks,
> Jun Jiang
>
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-- 
Paolo Giannozzi, Dip. Scienze Matematiche Informatiche e Fisiche,
Univ. Udine, via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222
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