Re: [myhdl-list] It's a beautiful day

[Angel E. <ang...@gm...>]

On Tue, Jun 7, 2011 at 3:28 PM, Angel Ezquerra <ang...@gm...> wrote:
> That is fantastic news!
>
> I'm pretty sure that the PyPy guys would love to hear about this
> success story. I believe they have a web page were they track packages
> that work with PyPy. It would probably be even better if MyHDL was on
> the Python Package Index (coincidentally named PyPi) since I think
> there are also some web pages which track the percentage of the
> packages in there war work with PyPi. Also, think they have a page,
> http://speed.pypy.org/, where they automatically run benchmarks
> comparing their performance to CPython's. It would be great if you got
> them to add a MyHDL benchmark to their list.
>
> Since PyPy has quite a lot of mindshare on sites such as HackerNews,
> reddit/programming, etc, if you manage to get "featured" by them (in
> their blog, or on their benchmark page, for example) you'd surely get
> a huge boost to the number of people that know about MyHDL.
>
> As for your performance comparison, I wonder if it would make sense to
> manually write equivalent VHDL and Verilog tests, and compare those to
> the automatically generated ones (with MyHDL). If the results are
> similar it would make a really strong case that Verilog and VHDL code
> generated with MyHDL is as efficient as code directly written in those
> languages. I know that is a concern to some people when they get
> introduced to MyHDL so anything that can prove that is not the case
> would be great.
>
> I would say that they only drawback of the PyPy apporach is that,
> AFAIK, there is currently no stand-alone windows installer. Hopefully
> that will be addressed by the PyPy guys soon.
>
> Cheers,
>
> Angel
>
>
> On Tue, Jun 7, 2011 at 2:15 PM, Jan Decaluwe <ja...@ja...> wrote:
>> A few weeks ago, I posted the following:
>>
>>> From: Jan Decaluwe <ja...@ja...>
>>> Newsgroups: gmane.comp.python.myhdl
>>> Subject: My take on MyHDL weaknesses - and solutions
>>> Date: Mon, 04 Apr 2011 11:00:23 +0200
>>> ...
>>> Solution 2: The PyPy project (future). Python doesn't have
>>> to be slow: by employing clever JIT techniques, performance
>>> can be improved drastically e.g. 5-10x. I believe that MyHDL
>>> is a good candidate for this type of optimization. The day
>>> this happens would be one of the most important ones in
>>> MyHDL's history: the performance limitations would for a
>>> large part go away, and it would be the ultimate validation
>>> of the concept: benefitting from advances without having to
>>> do anything yourself :-)
>>
>> I'm very happy to report that it looks like this day has
>> arrived now. PyPy 1.5 is compatible with Python 2.7, and
>> I'm seeing really spectacular speedup factors.
>>
>> I have documented my findings extensively here:
>>
>>     http://www.myhdl.org/doku.php/performance
>>
>> Obviously, I would like to create some buzz about this, but
>> I want to move carefully. First I would like to know if
>> people with relevant simulations get similar results.
>>
>> Feedback is therefore very welcome; I think everything needed
>> to get started is documented on the page mentioned above.
>>
>> Jan
>>
>> --
>> Jan Decaluwe - Resources bvba - http://www.jandecaluwe.com
>>     Python as a HDL: http://www.myhdl.org
>>     VHDL development, the modern way: http://www.sigasi.com
>>     Analog design automation: http://www.mephisto-da.com
>>     World-class digital design: http://www.easics.com
>>
>>
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>

Actually it seems there is a beta version of a windows (x32)
installer! You can get it from: http://pypy.org/download.html

Angel