[petsc-users] PaStiX is not included in Cray's PETSc module

[Xiangdong Liang]

Thanks, Barry. Do you have an idea of the performance of the PETSc
library between Cray's module and the one I compiled?

I was told by Kraken's user support that the PetSc module in Cray's
LibSci is highly tuned for the interconnect of the hardware. I am
wondering whether my own compiled library will heavily affect the
performance. Thanks.

Best,
Xiangdong


On Sun, Oct 30, 2011 at 9:47 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
>
>   You can install petsc-dev on the system yourself and use whatever solver you chose.
>
>   Barry
>
> On Oct 30, 2011, at 8:43 PM, Xiangdong Liang wrote:
>
>> Hello everyone,
>>
>> I am trying to solve linear system with sparse-direct solver on Kraken
>> Cray XT5 system. As I tested on our own small cluster, PaStiX works
>> better than superlu_dist and mumps.
>>
>> However, PaStix was not installed on Kraken, while superlu_dist and
>> mumps are installed as part of PETSc. I contact Kraken user support
>> and was told the PETSc library was built by Cray and specially
>> optimized for its structure. Do you happen to know the reason that
>> PaStiX was not included in Cray's PETSc module? Thanks.
>>
>> Best,
>> Xiangdong
>
>