When you do this, could you also do:

cd tune
make tune

and send me the results for each machine. The crossovers have now changed a
lot after I fixed numerous performance issues.

Bill.


On 17 February 2014 21:06, Bill Hart <goodwillh...@googlemail.com> wrote:

> Excellent. Here are the (abbreviated) instructions:
>
> git clone https://github.com/wbhart/mpir
> ./configure {check it really detects as a nehalem/atom}
> make -j
> cd tune
> make speed
> ./speed -s 1-100 -t 1 mpn_sqr_basecase
>
> Record the values somewhere.
>
> Now, on the nehalem, remove the file mpn/x86_64/nehalem/sqr_basecase.as
> On the atom, remove mpn/x86_64/atom/sqr_basecase.as
>
> Now time it again (go to top level directory):
>
> ./configure
> make clean
> make -j
> cd tune
> make speed
> ./speed -s 1-100 -t 1 mpn_sqr_basecase
>
> Check the clock speed reported in both runs is the same on each machine.
>
> Tell me whether the numbers in the second run are mostly lower or not.
>
> If they are can you send the numbers to me and the output of
>
> ./speed -s 1-100 -t 1 mpn_kara_sqr_n
>
> for each machine.
>
> Thanks.
>
> Bill.
>
>
> On 17 February 2014 20:58, Jean-Pierre Flori <jpfl...@gmail.com> wrote:
>
>>
>>
>> On Monday, February 17, 2014 7:31:35 PM UTC+1, Bill Hart wrote:
>>>
>>> I have access to quite a few machines, but currently not atom, nehalem,
>>> bobcat, bulldozer or haswell chips.
>>>
>>> I have access to an atom and a nehalem (Core2).
>>
>
>

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