Re: [Anuga-user] ANUGA

[rupal b. <rup...@gm...>]

ok. I got it. thank you very much  Ole sir and  Steve sir.

On Fri, Feb 8, 2019 at 3:18 AM Stephen Roberts <ste...@an...>
wrote:

> Hi Rupal,
>
> Yes I agree with Ole, when running with mpirun, choose np to be the number
> of cores.
>
> Cheers
> Steve
>
> ==============================
> Stephen Roberts
> Undergraduate Convenor
> Mathematical Sciences Institute
> Room 4.74 Hanna Neumann Building #145
> The Australian National University
> Canberra, ACT 2600 AUSTRALIA
> Ph: +61 2 61254445
> CRICOS: 00120C
>
>
> ------------------------------
> *From:* Ole Nielsen <ole...@gm...>
> *Sent:* Friday, 8 February 2019 7:05 AM
> *To:* rupal budhbhatti
> *Cc:* anu...@li...
> *Subject:* Re: ANUGA
>
> I'd go with cores. Threads only give speed up when some processes are
> waiting for IO.
> In parallel computing we want every core to run at full speed and as
> independent as possible.
>
> It'll still run but don't expect additional speed up.
>
> In your case use 18 as the number of processors
>
> Cheers
> Ole
>
> On Thu., 7 Feb. 2019, 22:40 rupal budhbhatti <rup...@gm... wrote:
>
> Hello,
>
> Sir, In parallel computing ANUGA uses numbers of threads or cores?
> My system has 18 cores and 36 threads. By mistake I gave 64 as number of
> processors for parallel.Still it is running. So does it means that I can
> give 18*2*2 = 72?
>
> I am not from computing background. Please help me to understand this.
>
>
>
> Kind Regards,
> Rupal
>
>