[Wien] new/old machines file

[Wien2k User]

Dear Prof. Laurence Marks

No, for the second machines file I did not use omp_global, and i have
changed export omp_threads to 1 in bashrc in order to run both calculations
with the same number of threads (4)

Le sam. 22 juin 2019 à 16:06, Laurence Marks <laurence.marks at gmail.com> a
écrit :

> This is because you are running 4 kpt-parallel processes, and each is
> asking for 4 cores, i.e. 16 total. They interfere/clash, hence it is slower.
>
> ---
> Prof Laurence Marks
> "Research is to see what everyone else has seen, and to think what nobody
> else has thought", Albert Szent-Gyorgi
> www.numis.northwestern.edu
>
> On Sat, Jun 22, 2019, 15:35 Wien2k User <wien2k.user at gmail.com> wrote:
>
>> Dear Prof. P. Blaha;
>>
>> I did a test to compare the new machines file with the old for example
>> i have used 4 core CPU
>> the new
>>
>> 1:localhost
>> omp_global:4
>> .....
>>
>> with the old ;
>> 1:localhost
>> 1:localhost
>> 1:localhost
>> 1:localhost
>>
>> I noticed that the calculations with the new file are slower than with
>> the old one with a difference of 5 minutes for 1 cycle calculation of 23/28
>> minutes
>>
>>
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