[Wien] new/old machines file

[Wien2k User]

Dear Prof. Laurence Marks

Thank you very much for this information

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

> Ignore my last email.
>
> Running 4 k-pts as you had before is always faster than multithreading.
>
> On Sat, Jun 22, 2019, 16:06 Laurence Marks <laurence.marks at gmail.com>
> wrote:
>
>> 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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