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Re^2: How much computational speed boost occurs for CALL64 and multi processors??

Siddheshwar Chopra

Dear Alex,
How do I check for core parking feature in Win 7? Yes I am running two programs, one in dual core and another in i3. Core i3 I am using 4 cores. On dual core, Win xp and on i3 Win 7 is installed.


On Fri Apr 11 '14 4:40pm, Alex Granovsky wrote

>normally, Firefly scales almost linearly with respect to the number
>of cores used in computations.

>As to your dual-core and Core i3 systems, are you running Firefly
>in parallel on both of them? How much cores are you using on
>Core i3 system? What is the OS installed on your systems.
>If you are using Windows 7, is the core parking feature disabled?

>Kind regards,
>Alex Granovsky
>On Sun Mar 30 '14 10:51pm, Siddheshwar Chopra wrote
>>Dear Sir,
>>It has become all the more important to understand how more number of processors, 64 bit OS effect the Firefly computational speed, say for Hessian and TDDFT etc. calculations?
>>I have a dual core system with 2 threads and a i3 one with 2 cores and 4 threads.. But dual core one seems to work faster with all same commands used like p2p, httfix etc. How do we decide upon choosing  the no. of processors to be used??


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