Re: [jamboost] Re: problem with parallelism feature example in documentation

From: Toon Knapen (toon.knapen_at_[hidden])
Date: 2004-11-29 05:40:13

Vladimir Prus wrote:

> That's right, but when you invoke bjam it tries to build all targets with
> the default values of properties. For <parallelism> that's "mpi"
> 

Hmmm, so I made 'none' the default and now it works just fine. Actually 
I think it makes more sense to have 'none' as the default because 
<parallelism> is always 'optional' and thus by default should not be 
activated (and I did not know that the first value of the possible 
values listed for the properties was considered to be the default, 
although that makes perfect sense of course)

> 1. "libmpi" is built with <parallelism>mpi
> 2. <parallelism>mpi is expanded to
> <library>/user-config//libmpi/<parallelism>none.
> 3. An attempt to build /user-config//libmpi/<parallelism>none is made, at
> which point a recursion cycle is detected.