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

Alex Granovsky
gran@classic.chem.msu.su


Hello,

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??

>Regards,
>


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