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 > >