[vtk-developers] Compile VTK in 2 minutes

Berk Geveci berk.geveci at kitware.com
Tue May 7 14:12:11 EDT 2002

-O2 makes the compile time a lot longer. I only use -g
during development.

On Tue, 2002-05-07 at 14:07, Prabhu Ramachandran wrote:
> >>>>> "DG" == David Gobbi <dgobbi at irus.rri.ca> writes:
>     DG> It makes a big difference if you skip the extra kits and if
>     DG> you don't do the tcl, python wrapping.
>     DG> Prabhu: even on a single-cpu machine, 'make -j 2' speeds
>     DG> things up a fair bit.  A lot of RAM helps too.  Typically it
> I'm not so sure about that.  My current build with make -j 4 has taken
> about 1.5 hours already (and its just now started on Rendering).  I
> have 192MB RAM not too much but should do.  I still have some free
> memory.
> Does a -g -O2 make a difference?  FWIW, I usually build the Tcl and
> Python wrappers.  Maybe that makes the difference?
>     DG> takes me about 15-20 min to build all of VTK + wrapping (with
>     DG> -02 optization) on the 2x933 PIII 1GB RAM in our lab, using
> Yes, that makes sense.  You are talking of a > 4x improvement over my
> machine.  So a 30 min build is not surprising.
> prabhu
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