[seqfan] Re: Pieces of cake sequence A265286 and a question

Max Alekseyev maxale at gmail.com
Sun Jan 24 20:54:31 CET 2016


Ron, gurobi uses all available cores (40 in my case) by default; I had
nothing to do here.

On Sun, Jan 24, 2016 at 2:42 PM, Ron Hardin <rhhardin at att.net> wrote:

> My experience is that running two cores on a single machine slows it down
> a lot, owing to memory cache conflicts.
> It probably depends on how you access memory.  If it's mostly local per
> process, it may not hurt much. rhhardin at mindspring.com rhhardin at att.net
> (either)
>
>
>
>       From: Max Alekseyev <maxale at gmail.com>
>  To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
>  Sent: Sunday, January 24, 2016 10:33 AM
>  Subject: [seqfan] Re: Pieces of cake sequence A265286 and a question
>
> For n=6, the minimum smallest piece in an 11-piece solution equals 1/120,
> like in
> [1/120, 1/40, 1/30, 7/120, 3/40, 11/120, 13/120, 1/8, 17/120, 1/6, 1/6]
>
> It would take about 37 days of single-core computations in Sage+Gurobi.
> Luckily I run on a 40-core system and it took only about a day to establish
> the above result.
>
> Regards,
> Max
>
>
>
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>


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