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Re^4: How much computational speed boost occurs for CALL64 and multi processors??

Siddheshwar Chopra

Dear Alex,
Did it as you suggested.. But really don't know how to feel the difference now? As far as I have noticed (on Win7 only), all the processors seem to work everytime, as I keep monitoring them every now and then. They seem to use all 4 threads (on i3).


On Tue Apr 15 '14 0:53am, Alex Granovsky wrote
>Dear Siddheshwar,


>Kind regards,
>Alex Granovsky

>On Sat Apr 12 '14 6:57am, Siddheshwar Chopra wrote
>>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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