using hypre through petsc

[Barry Smith]

On Fri, 29 Sep 2006, Yaron Kretchmer wrote:

> If the latter (Petsc not configured to use Hypre), wouldn't Matt get an
> error when specifying hypre as preconditioner?

  Yes he would, but it could get lost among all the help messages
printed.

   Barry

> 
> Yaron
> 
> 
> On 9/29/06, Barry Smith <bsmith at mcs.anl.gov> wrote:
> > 
> > 
> >   Either you are not calling KSPSetFromOptions() in your
> > code (or SNESSetFromOptions() OR PETSc was not configured
> > to use hypre. To configure PETSc to use hypre you
> > must use the additional config/configure.py option
> > --download-hypre
> > 
> >   Good luck,
> > 
> >     Barry
> > 
> > 
> > On Fri, 29 Sep 2006, Matt Funk wrote:
> > 
> > > This might be a pretty stupid question, especially since i did this a
> > while
> > > back and it worked.
> > >
> > > However, how do i specify thsis? Do i run my executable do and then
> > simply
> > > append -pc_type hypre -pc_hypre_type boomeramg -help and it will print
> > out
> > > the options?
> > >
> > >
> > > Because when i do that i get:
> > > Options for all PETSc programs:
> > >  -on_error_abort: cause an abort when an error is detected. Useful
> > >        only when run in the debugger
> > >  -on_error_attach_debugger [gdb,dbx,xxgdb,ups,noxterm]
> > >        start the debugger in new xterm
> > >        unless noxterm is given
> > >  -start_in_debugger [gdb,dbx,xxgdb,ups,noxterm]
> > >        start all processes in the debugger
> > >  -on_error_emacs <machinename>
> > >     emacs jumps to error file
> > >  -debugger_nodes [n1,n2,..] Nodes to start in debugger
> > >  -debugger_pause [m] : delay (in seconds) to attach debugger
> > >  -stop_for_debugger : prints message on how to attach debugger manually
> > >                       waits the delay for you to attach
> > >  -display display: Location where graphics and debuggers are displayed
> > >  -no_signal_handler: do not trap error signals
> > >  -mpi_return_on_error: MPI returns error code, rather than abort on
> > internal
> > > error
> > >  -fp_trap: stop on floating point exceptions
> > >            note on IBM RS6000 this slows run greatly
> > >  -malloc_dump <optional filename>: dump list of unfreed memory at
> > conclusion
> > >  -malloc: use our error checking malloc
> > >  -malloc no: don't use error checking malloc
> > >  -mallocinfo: prints total memory usage
> > >  -malloc_debug: enables extended checking for memory corruption
> > >  -options_table: dump list of options inputted
> > >  -options_left: dump list of unused options
> > >  -options_left no: don't dump list of unused options
> > >  -tmp tmpdir: alternative /tmp directory
> > >  -shared_tmp: tmp directory is shared by all processors
> > >  -not_shared_tmp: each processor has separate tmp directory
> > >  -memory_info: print memory usage at end of run
> > >  -get_total_flops: total flops over all processors
> > >  -log[_all _summary]: logging objects and events
> > >  -log_trace [filename]: prints trace of all PETSc calls
> > >  -info <optional filename>: print informative messages about the
> > calculations
> > >  -v: prints PETSc version number and release date
> > >  -options_file <file>: reads options from file
> > >  -petsc_sleep n: sleeps n seconds before running program
> > >
> > >
> > > but nothing about hypre .... ?
> > >
> > >
> > > mat
> > >
> > >
> > >
> > > On Tuesday 19 September 2006 17:05, Yaron Kretchmer wrote:
> > > > Hi Matt
> > > > You can start experimenting by using
> > > > -pc_type hypre -pc_hypre_type boomeramg -help
> > > > which will give you all the boomeramg options.
> > > >
> > > > When I use it I get intermittent segfaults, which I couldn't resolve
> > with
> > > > the Hypre guys, so good luck.
> > > >
> > > > Yaron
> > > >
> > > > On 9/19/06, Matt Funk <mafunk at nmsu.edu> wrote:
> > > > > Hi,
> > > > >
> > > > > i am trying to use boomeramg from hypre in petsc. What i am doing
> > right
> > > > > now is
> > > > > simply do:
> > > > >
> > > > > m_ierr = PCSetType(m_pc,PCHYPRE);//CHKERRQ(ierr)
> > > > > m_ierr = PCHYPRESetType(m_pc,"boomeramg");
> > > > >
> > > > > then i do my kspsetup etc...
> > > > >
> > > > > i was wondering what other things i need to configure/set to
> > properly use
> > > > > the
> > > > > hypre preconditioner with petsc. This is new to me, so i am not
> > really
> > > > > experienced with this (that is using external packages through
> > petsc).
> > > > > Also,
> > > > > these are the only hypre calls i found in the manual pages.
> > > > >
> > > > > Maybe somebody with more experience can share some of their wisdom
> > ...,
> > > > > or point to a place where i can read up on it?
> > > > >
> > > > >
> > > > > thanks
> > > > > mat
> > >
> > >
> > 
> > 
>