OpenMP options and threading models

[Mark Mitchell]

Tom Tromey wrote:

>>>>>>"Scott" == Scott Robert Ladd <coyote@coyotegulch.com> writes:
>>>>>>            
>>>>>>
>
>Scott> Which threading model should OpenMP use?
>
>Other target libraries like libjava just use the thread model
>determined by --enable-threads.  This makes sense since that option
>controls what threading primitives are used by libgcc.
>
>So, IMO, this should be the default.  Adding some other option may
>make sense depending on the needs of OpenMP.
>  
>
I tend to agree -- with the caveat that it might also be reasonable for 
the OpenMP library to use (for example's sake) POSIX threads directly, 
and therefore work only with POSIX threads.  In that case, the compiler 
should just not build the OpenMP library if configured with non-POSIX 
threads.  I wouldn't commit the OpenMP library to working with the 
gthr.h stuff -- but it would be nice if it did, I suppose.

-- 
Mark Mitchell
CodeSourcery, LLC
(916) 791-8304
mark@codesourcery.com