Hal Murray via devel writes:
> Are the specs and implementation for IEEE floating point tight enough so that
> I should get the exact same result if I run a test on a different CPU
> chip?
Formally yes, if you aren't straying into denormals and you keep
yourself to elementary operations that actu
Yo Hal!
On Mon, 15 Jul 2019 17:15:34 -0700
Hal Murray via devel wrote:
> Are the specs and implementation for IEEE floating point tight enough
> so that I should get the exact same result if I run a test on a
> different CPU chip?
Better than it used to be, but you will still want to use a guar
On Mon, Jul 15, 2019, 5:15 PM Hal Murray via devel wrote:
>
> tenterl...@gmail.com said:
> > I come from a scientific background, where we compare results somewhat as
> > analog values. If the test result is off the expected by 1000%, that's
> bad.
> > If it's off 1%, better. If the error is .000
tenterl...@gmail.com said:
> I come from a scientific background, where we compare results somewhat as
> analog values. If the test result is off the expected by 1000%, that's bad.
> If it's off 1%, better. If the error is .1%, probably within achievable
> accuracy.
There is a difference b
Please excuse an outsider jumping into the conversation.
AIUI, the testing under discussion is what I think of as the system
programming type - if we have inputs A and B to a black box, and the
test reproduces output C exactly, bit-for-bit, then the test is a
success, otherwise it is a complete fa
Hal Murray :
>
> > It's...hm...maybe a good way to put it is that the structure of the NTPsec
> > state space and sync algorithms is extremely hostile to testing.
>
> I still don't have a good understanding of why TESTFRAME didn't work. I
> can't
> explain it to somebody.
>
> We've got
> co
Mark's comment about lots of data reminded me that I meant to send this a
month ago. I guess it fell through the cracks.
Most of the talk is about open systems, not much about Jupyter itself.
Nothing NTP related. The first 30 minutes is Guido then Fernando describing
history and culture. Th
