;>>
>>>> I am not surprised that PARDISO was found to be slower than ‘\'. Most
>>>> of the power system test cases in MATPOWER are so small that having a
>>>> multi-threaded linear solver may not yield any appreciable speedup. The
>>>> thread la
;mari...@gridquant.com>
> Reply-To: MATPOWER discussion forum <matpowe...@list.cornell.edu>
> Date: Monday, October 19, 2015 at 12:15 PM
>
> To: MATPOWER discussion forum <matpowe...@list.cornell.edu>
> Subject: Re: Question about sparsity-based implementation in
Ray
>>>
>>>
>>> On Oct 19, 2015, at 1:05 AM, Shruti Rao <sra...@asu.edu> wrote:
>>>
>>> Thank you Dr. Abhyankar for the guidance. I appreciate your time and
>>> effort.
>>>
>>> Shruti
>>>
>>> On Sun, Oct 18, 2015
a...@asu.edu <mailto:sra...@asu.edu>>
> Reply-To: MATPOWER discussion forum <matpowe...@list.cornell.edu
> <mailto:matpowe...@list.cornell.edu>>
> Date: Sunday, October 18, 2015 at 8:31 PM
> To: MATPOWER discussion forum <matpowe...@list.cornell.edu
> <mailto:mat
ruti,
>>> MATPOWER does use “\” operator for the linear solves. However note
>>> that, internally, MATLAB does perform some sort of matrix reordering to
>>> reduce the fill-ins in the factored matrix. For instance, UMFPACK uses an
>>> approximate minimum degree r
nds on the symmetry of the
>>> Jacobian matrix. For MATPOWER test cases that have symmetric Jacobians (due
>>> to inactive taps), a Cholesky factorization is used (LL^T = A). For cases
>>> that lead to non-symmetric Jacobian, MATLAB uses UMFPACK for performing the
>>>
matpowe...@list.cornell.edu<mailto:matpowe...@list.cornell.edu>>
Subject: Question about sparsity-based implementation in MATPower
Greetings MATPower community,
I had a question about the way sparsity-based techniques are used in the
Newton-Raphson solver of the power flow algorithm in MA
Greetings MATPower community,
I had a question about the way sparsity-based techniques are used in the
Newton-Raphson solver of the power flow algorithm in MATPower.
I ran the code step-by-step and from my understanding, the way the sparsity
of the Jacobian matrix is exploited is that it is
WER discussion forum <matpowe...@list.cornell.edu>
> Date: Sunday, October 18, 2015 at 5:37 PM
> To: MATPOWER discussion forum <matpowe...@list.cornell.edu>
> Subject: Question about sparsity-based implementation in MATPower
>
> Greetings MATPower community,
>
> I had a que
...@list.cornell.edu>>
Subject: Re: Question about sparsity-based implementation in MATPower
Thank you Dr. Abhyakar,
My main aim was to confirm that MATPower uses the inbuilt "\" to solve the
matrix equations and not Tinney or some other form of reordering and then LU
factorizat
...@list.cornell.edu>
> Date: Sunday, October 18, 2015 at 8:31 PM
> To: MATPOWER discussion forum <matpowe...@list.cornell.edu>
> Subject: Re: Question about sparsity-based implementation in MATPower
>
> Thank you Dr. Abhyakar,
>
> My main aim was to confirm that M
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