Speed/memory difference btw no hopping and hopping=0.0

Dear all,
I have a question about speed/memory performance. If I define 100 lattices with hoppings within and in between the lattices, but define most of those hoppings to be 0.0, does this lead to a significantly slower execution than not defining any hoppings at all?
(It's related to the code I'm working on that I described in my email with the subject "Dynamic number of lattices").
Thank you all for your concern and time.
Cheers,
Baris

Hi Baris
Yeah, with 100 lattices, if you're connecting all of them with a hopping, you're making some 5000 hopping per site tag, and I imagine that would lead to a big slowdown creating the system. During the solving stage we eliminate empty entries, and so that should be fine if I remember correctly.
Best, Anton
On Sun, Sep 27, 2015 at 8:24 PM, Baris Pekerten barisp@sabanciuniv.edu wrote:
Dear all,
I have a question about speed/memory performance. If I define 100 lattices with hoppings within and in between the lattices, but define most of those hoppings to be 0.0, does this lead to a significantly slower execution than not defining any hoppings at all?
(It's related to the code I'm working on that I described in my email with the subject "Dynamic number of lattices").
Thank you all for your concern and time.
Cheers,
Baris
participants (2)
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Anton Akhmerov
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Baris Pekerten