Hi,
I am trying to build PETSc into my CFD code. I just built the 3.1-p0
against a version of open-mpi 1.4.1. I thought
src/ksp/ksp/ex/tut/ex2.c seemed like a comparable case (though much
smaller and fewer matrix bands) of what I need. I tried running the
default ex2.c example on a single-core
Dear Petsc developer,
I found a problem that PASTIX solver can not be loaded from PETSC, even for 3.1
version.
When I use following code, the ksp_view told me that PC is ilu. And the snes
solver can not convergence at all.
ierr = KSPSetType (ksp, (char*) KSPPREONLY); assert(!ierr);//it
Dear Petsc developpers,
I tried to configure PETSc (ver 3.0)
on Linux (64bit), MPI-enabled, Intel Compiler (icc/icpc) environment,
but it failed.
./config/configure.py --with-mpi=1
--with-mpi-dir=/opt/home/sekikawa/bin-personal/mpich2 \
--with-x=0 --with-fc=0 --with-debugging=0
Dear all,
I am getting a compilation error from the sqrt(cmath header) function
with PETSc 3.1, I configured PETSc with complex scalar type so I am
suspecting that this is the source of the problem.
Is there a simple workaround for this? And Is there an sqrt function for
a 'PetscScalar', I
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Matthew Knepley wrote:
My guess is that you want
PetscReal xTMx;
Dear Matthew,
Thanks for the quick reply, Not sure, here is the code for the related
part, I used a VecTDot before that so I need PetscScalar I guess.
PetscErrorCode ierr;
Vec x, Bx;
int rSz, cSz;
PetscScalar
is infinitely more interesting than any results to which their experiments
lead.
-- Norbert Wiener
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Dear Barry,
Very sorry. It is my mistake.
I set PC to ILU again in another function when PasTIX is used (but MUMPS is
right).
Now it works, thanks.
Yours
Gong Ding
If you use MUMPS then you should be able to use PaStiX just by
changing that one line. It should not suddenly say that
no match for ?operator/? in ?1 / std::sqrt [with
It is complaining about the operator / not the sqrt. Try 1.0 /
sqrt(xTMx) instead. Sometimes the complex class is real braindead
about casting from ints.
Barry
On Apr 7, 2010, at 5:47
petsc-3.0 [with latest patches] configure should be able to handle
MLK-10. Don't remember MLK-11.
without MPI (--with-mpi=0), this configure succeeded with no problem.
Claims MLK-10 was detected properly without mpi. This is weird - but
again configure.log for both builds will clarify the
Umut,
Send one of the matrices with this behavior to petsc-maint at mcs.anl.gov
and we'll see what is going on. Also in that email tell use exactly
how you run it in Matlab.
Barry
On Apr 7, 2010, at 5:58 PM, Umut Tabak wrote:
Dear all,
I have tried on some
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