2012/8/30 <comp-phys-alps-users-request@lists.phys.ethz.ch>

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Today's Topics:

1. using sparsediag (???)
2. Re: using sparsediag (Matthias Troyer)

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Message: 1
Date: Wed, 29 Aug 2012 21:35:13 -0400
From: ??? <qiaoni2233@gmail.com>
To: comp-phys-alps-users@lists.phys.ethz.ch
Subject: [ALPS-users] using sparsediag
Message-ID:
<CAEM5Jm67=pHMzhVxKwZuPKFJjiNpw8A3+LSSa3hG0MJ9zEAC=Q@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

Hi, everyone
I'm using sparsediag to get the ground state of Hubbard model, e.g. L=12,
with the particle number constraint Nup_total=6, Ndown_total=6. Using the
command line. If I calculate the correlation function , it takes 900 sec,
if not it takes 100 sec, does anyone know how to speed up this calculation?

Btw if I use python to run the result, I can't see the result from the
task.out.xml file, how to look up the result

--
Qiaoni Chen
Department of Chemistry,
Princeton University
Princeton, NJ, 08544
Tel +1-609-865-0817
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Message: 2
Date: Thu, 30 Aug 2012 09:51:23 +0200
From: Matthias Troyer <troyer@phys.ethz.ch>
To: comp-phys-alps-users@lists.phys.ethz.ch
Subject: Re: [ALPS-users] using sparsediag
Message-ID: <4751AABD-E279-4CB9-A418-AAA65D9FA5C2@phys.ethz.ch>
Content-Type: text/plain; charset=utf-8

On Aug 30, 2012, at 3:35 AM, ??? <qiaoni2233@gmail.com> wrote:

> Hi, everyone
> I'm using sparsediag to get the ground state of Hubbard model, e.g. L=12, with the particle number constraint Nup_total=6, Ndown_total=6. Using the command line. If I calculate the correlation function , it takes 900 sec, if not it takes 100 sec, does anyone know how to speed up this calculation?

What correlation function are you considering?

>
> Btw if I use python to run the result, I can't see the result from the task.out.xml file, how to look up the result

You can also instruct Python to produce XML files.

Matthias

End of Comp-phys-alps-users Digest, Vol 77, Issue 5
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