Re: repost of D4 message

[D. D. Donalson]

Sounds reasonable to me!

D4

----- Original Message ----- 
From: "Marcus G. Daniels" <address@hidden>
To: <address@hidden>
Sent: Saturday, March 31, 2001 3:40 PM
Subject: Re: repost of D4 message


> >>>>> "D4" == Marcus G Daniels <address@hidden> writes:
> 
> MD> C++ is a complex language and not suitable for most experimental
> MD> kinds of agent-based modeling.
> 
> D4> I don't understand this comment.  Talking to simulation people
> D4> both at UCSB and in bussiness (Rand Corp. and TRW), the feeling is
> D4> that it is the best general language out for simulation.  The
> D4> feeling is that Java, being partially interpreted, will always be
> D4> a step slower and that makes it uNsuitable for hard core sims.
> D4> (Note that we are talking 10,000+ agent as opposed to 50 agent
> D4> sorts of models.)  I'm not trying to push C++, I just don't
> D4> understand why you think it is uNsuitable.
> 
> In the hands of someone that invests enough time to understand the
> full power of C++, it IS more powerful than Java.  For starters it has
> templates and multiple inheritance. 
> 
> I am almost sure, though, that if new Swarm users find Objective C or
> Java an obstacle to getting in to agent-based modeling, that they will
> RUN SCREAMING when they see C++.  I do NOT want to be the person
> that picks up the pieces (and takes the blame) for THAT.  ;-)
> 
> As for the matter of the getting rid of the silly VM in Java, the GNU
> Java compiler (gcj) will do it, and generates code that is ABI
> compatible with C++.  Performance is similiar to C++. 
> 
>    http://gcc.gnu.org/java
> 
> After a bit of work, the JNI implementation of gcj is working with Swarm,
> the result being native code executables.  Very slick.  The Redhat Java
> team _kicks_.
> 
> 
> 
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