[LLVMdev] GPU thread/block/grid size contraints in LLVM PTX backend

[Che-Liang Chiou]

I don't think so, but you should check source code.

On Tue, Mar 13, 2012 at 9:58 PM, Xin Tong <xerox.time.tech at gmail.com> wrote:
> but does it have default values ?
>
> Thanks
>
> Xin
>
> On Tue, Mar 13, 2012 at 5:19 AM, Che-Liang Chiou <clchiou at gmail.com> wrote:
>> You specify shader model, bit size and etc. arch-specified parameters
>> though -march, -mattr and -mcpu, but AFAIK, PTX backend does not use
>> the GPU thread/block/grid size information in optimization yet.
>>
>> On Mon, Mar 12, 2012 at 8:17 PM, Xin Tong <xerox.time.tech at gmail.com> wrote:
>>> I am wondering that how does the LLVM PTX backend find out the
>>> constraints on executing GPU thread/block/grid size ( i.e. a block can
>>> at most have 1024 threads). Can anyone point me to the code ? I need
>>> information in the optimizer,  how can I get it ?
>>>
>>> Thanks
>>>
>>> Xin
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