hendrik at topoi.pooq.com
Mon Jun 15 22:15:38 BST 2020
On Mon, Jun 15, 2020 at 09:49:05PM +0100, Luke Kenneth Casson Leighton wrote:
> On Mon, Jun 15, 2020 at 9:28 PM Yehowshua <yimmanuel3 at gatech.edu> wrote:
> > Also, I believe Cole had mentioned that you’re using a Mac?
> ah. right. okay. we're not supporting macs, and we're not going to
> do development on macs. there are two aspects to this:
> 1). when it comes to the ASIC layout, it is absolutely critical - and
> is Industry Standard Practice - to have full reproducible builds. not
> even the username is different. everyone doing the builds sets up
> carbon-copy machines, where you could literally do a file-system
> byte-level comparison and find absolutely everything is the same.
> this is abbbsolutely essential when you are about to drop USD $5m on a
> chip tape-out... oh but the last person who checked the build used
> some totally different library and now "it doesn't work", finding the
> discrepancy results in time lost, you miss the tape-out window
> entirely, and the company loses a USD $100 million dollar deal because
> of it.
> so it's actually *really serious* not to be using the exact same
> development workflow as everyone else.
Any chance the Mac might find problems the Debian doesn't?
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