Subject: Re: [vhdl-200x-perf] Re: Performance issues
From: Steve Casselman (sc@vcc.com)
Date: Wed Apr 30 2003 - 10:12:33 PDT
I agree. I'm thinking that if the standard contained a set of trade-offs
for speed vs. accuracy that it would encourage/guide the vendors to create
both higher performance and more accurate simulations that behave the same
from vendor to vendor. The problem with the performance issues is there are
very few things you can do that will give you both speed and accuracy. Those
things that give you both speed and accuracy should be done. If there has to
be a trade off it is possible to group the trade offs into speed vs.
accuracy and keep both. As experts this group would be the best set of
people to make those distinctions and make sure that there are no major
problems.
Steve
>
> Performance is usually a trade-off, if you don't trade something you won't
> get the speed-up. Your choices are a) add language short-cuts (e.g.
blocking
> assigns), or b) more complex simulators (parallel processing) or c) do it
> all differently (SystemC?).
>
> Language development is evolutionary, if an addition is useful it gets
used
> and the vendors will keep polishing and extending in that direction (even
if
> it looked like a gross mutation in the first place).
>
> Kev.
>
>
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