[petsc-users] TSSolve problems

[Li, Xinya]

Barry, 

Thank you for your response.

Attached is the output. SNESSolve was taking most of the time. 


Xinya



-----Original Message-----
From: Barry Smith [mailto:bsmith at mcs.anl.gov] 
Sent: Thursday, June 25, 2015 5:47 PM
To: Li, Xinya
Cc: petsc-users at mcs.anl.gov
Subject: Re: [petsc-users] TSSolve problems


  Run with -ts_view -log_summary and send the output. This will tell the current solvers and where the time is being spent.

  Barry

> On Jun 25, 2015, at 6:37 PM, Li, Xinya <Xinya.Li at pnnl.gov> wrote:
> 
> Dear Sir,
>  
> I am using the ts solver to solve a set of ODE and DAE. The Jacobian matrix is a 1152 *1152 sparse complex matrix.
> Each TSStep in TSSolve is taking nearly 1 second. Thus, I need  to improve the speed of TSSolve.
> Which parts should be taking into account to accelerate TSSolve?
> Thank you very much.
> Regards
> __________________________________________________ 
> Xinya Li 
> Scientist
> EED/Hydrology
> Pacific Northwest National Laboratory 
> 902 Battelle Boulevard 
> P.O. Box 999, MSIN K9-33
> Richland, WA  99352 USA 
> Tel:  509-372-6248
> Fax: 509-372-6089 
> Xinya.Li at pnl.gov

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