Kubuntu Linux + PETSc Question

[Fernando Campos]

I tried the option --with-debugging=0 and the performance of my application 
in the sequential case decreased twice. 

:) 

However, in Kumbuntu Linux it is less scalable than when using Rocks Cluster 
system... 

I am trying to find out why.. we gave up on Rocks due many problems. 


Thanks Berend 




Em (15:41:06), petsc-users at mcs.anl.gov escreveu: 


>Hi Fernando, 
> 
>Have you tried configuring PETSc with the option 
>--with-debugging=0 
> 
>That should generate optimized code. 
> 
>For using hypre, you can specify 
>--download-hypre=yes 
> 
>Good luck, 
> 
>Berend. 
> 
>> Dear All, 
>> 
>> I've found that, for my application, the PETSc that comes in Kubuntu 
Linux 
>> 64 is twice faster than the one we can get in the PETSc's site. I want to 
>> use Hypre in my application, but I don't know how to use Hypre with the 
>> already compiled PETSc library in Kubuntu. Can you give me some hints in 
>> this task? Or maybe tell what should be reason for this difference in 
>> performance.. maybe I need some flags in order to optimize PETSc 
>downloaded 
>> from the site? 
>> 
>> Thank you. 
>> 
>> Fernando Campos 
> 
>----------