Re: [Anuga-user] ANUGA

[Ole N. <ole...@gm...>]

You are welcome.

On Fri., 8 Feb. 2019, 15:01 rupal budhbhatti <rup...@gm... wrote:

> 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
>>
>>