On Tuesday, January 14, 2020, Jacob Lifshay
wrote:
> On Mon, Jan 13, 2020 at 9:39 AM Jason Ekstrand
> wrote:
> >
> > On Mon, Jan 13, 2020 at 11:27 AM Luke Kenneth Casson Leighton <
> l...@lkcl.net> wrote:
> >> jason i'd be interested to hear your thoughts on what jacob wrote, does
> it alleviate
On Mon, Jan 13, 2020 at 9:39 AM Jason Ekstrand wrote:
>
> On Mon, Jan 13, 2020 at 11:27 AM Luke Kenneth Casson Leighton
> wrote:
>> jason i'd be interested to hear your thoughts on what jacob wrote, does it
>> alleviate your concerns, (we're not designing hardware specifically around
>> vec2/3
On Mon, Jan 13, 2020 at 11:27 AM Luke Kenneth Casson Leighton
wrote:
>
>
> On Monday, January 13, 2020, Jacob Lifshay
> wrote:
>
>> On Thu, Jan 9, 2020 at 3:56 AM Luke Kenneth Casson Leighton
>> wrote:
>> >
>>
>> > jacob perhaps you could clarify, here?
>>
>> So the major issue with the approac
On Monday, January 13, 2020, Jacob Lifshay wrote:
> On Thu, Jan 9, 2020 at 3:56 AM Luke Kenneth Casson Leighton
> wrote:
> >
>
> > jacob perhaps you could clarify, here?
>
> So the major issue with the approach AMDGPU took where the SIMT to
> predicated vector translation is done by the LLVM bac
On Thu, Jan 9, 2020 at 3:56 AM Luke Kenneth Casson Leighton
wrote:
>
> On 1/9/20, Jason Ekstrand wrote:
> >> 2. as a flexible Vector Processor, soft-programmable, then over time if
> >> the industry moves to dropping vec4, so can we.
> >>
> >
> > That's very nice. My primary reason for sending t
On 1/9/20, Jason Ekstrand wrote:
> Hopefully that makes the trade-off make more sense. One other important
> factor is that, even if vec4 could, in theory, be more efficient, it's way
> easier to write a compiler if you scalarize everything.
hi jason, really appreciated the additional insight.
On Wed, Jan 8, 2020 at 7:55 PM Luke Kenneth Casson Leighton
wrote:
>
>
> On Thursday, January 9, 2020, Jason Ekstrand wrote:
>
>> Drive-by comment:
>>
>
> really appreciate the feedback.
>
>
>> I don't think you actually want to base any decisions an a vec4
>> architecture. Nearly every company
On Thursday, January 9, 2020, Jason Ekstrand wrote:
> Drive-by comment:
>
really appreciate the feedback.
> I don't think you actually want to base any decisions an a vec4
> architecture. Nearly every company in the graphics industry thought that
> was a good idea and designed vec4 processors
Drive-by comment: I don't think you actually want to base any decisions an
a vec4 architecture. Nearly every company in the graphics industry thought
that was a good idea and designed vec4 processors. Over the course of the
last 15 years or so they have all, one by one, realized that it was a ba
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