On 07/11/2018 09:13 PM, Cesar Philippidis wrote:
> 2018-07-XX Cesar Philippidis
> Tom de Vries
>
> gcc/
> * config/nvptx/nvptx.c (PTX_GANG_DEFAULT): Rename to ...
> (PTX_DEFAULT_RUNTIME_DIM): ... this.
> (nvptx_goacc_validate_dims): Set default worker and
On 07/26/2018 04:27 PM, Cesar Philippidis wrote:
> Hi Tom,
>
> I see that you're reviewing the libgomp changes. Please disregard the
> following hunk:
>
> On 07/11/2018 12:13 PM, Cesar Philippidis wrote:
>> @@ -1199,12 +1202,59 @@ nvptx_exec (void (*fn), size_t mapnum, void
>> **hostaddrs, void
Hi Tom,
I see that you're reviewing the libgomp changes. Please disregard the
following hunk:
On 07/11/2018 12:13 PM, Cesar Philippidis wrote:
> @@ -1199,12 +1202,59 @@ nvptx_exec (void (*fn), size_t mapnum, void
> **hostaddrs, void **devaddrs,
>
>> Right, in fact there are two separate things you're trying to address
>> here: launch failure and occupancy heuristic, so split the patch.
> That hunk was small, so I included it with this patch. Although if you
> insist, I can remove it.
Please, for future reference, always assume that I
> Content-Type: text/x-patch; name="trunk-libgomp-default-par.diff"
> Content-Transfer-Encoding: 7bit
> Content-Disposition: attachment; filename="trunk-libgomp-default-par.diff"
>From https://gcc.gnu.org/contribute.html#patches :
...
We prefer patches posted as plain text or as MIME parts of
On 07/02/2018 07:14 AM, Tom de Vries wrote:
> On 06/21/2018 03:58 PM, Cesar Philippidis wrote:
>> On 06/20/2018 03:15 PM, Tom de Vries wrote:
>>> On 06/20/2018 11:59 PM, Cesar Philippidis wrote:
Now it follows the formula contained in
the "CUDA Occupancy Calculator" spreadsheet that's
On 07/02/2018 07:14 AM, Tom de Vries wrote:
> On 06/21/2018 03:58 PM, Cesar Philippidis wrote:
>> On 06/20/2018 03:15 PM, Tom de Vries wrote:
>>> On 06/20/2018 11:59 PM, Cesar Philippidis wrote:
Now it follows the formula contained in
the "CUDA Occupancy Calculator" spreadsheet that's
On 06/21/2018 03:58 PM, Cesar Philippidis wrote:
> On 06/20/2018 03:15 PM, Tom de Vries wrote:
>> On 06/20/2018 11:59 PM, Cesar Philippidis wrote:
>>> Now it follows the formula contained in
>>> the "CUDA Occupancy Calculator" spreadsheet that's distributed with CUDA.
>>
>> Any reason we're not
On 06/29/2018 10:12 AM, Cesar Philippidis wrote:
> Ping.
While porting the vector length patches to trunk, I realized that I
mistakenly removed support for the environment variable GOMP_OPENACC_DIM
in this patch (thanks for adding those test case Tom!). I'll post an
updated version of this patch
Ping.
Ceasr
On 06/20/2018 02:59 PM, Cesar Philippidis wrote:
> At present, the nvptx libgomp plugin does not take into account the
> amount of shared resources on GPUs (mostly shared-memory are register
> usage) when selecting the default num_gangs and num_workers. In certain
> situations, an
On 06/20/2018 03:15 PM, Tom de Vries wrote:
> On 06/20/2018 11:59 PM, Cesar Philippidis wrote:
>> Now it follows the formula contained in
>> the "CUDA Occupancy Calculator" spreadsheet that's distributed with CUDA.
>
> Any reason we're not using the cuda runtime functions to get the
> occupancy
On 06/20/2018 11:59 PM, Cesar Philippidis wrote:
> Now it follows the formula contained in
> the "CUDA Occupancy Calculator" spreadsheet that's distributed with CUDA.
Any reason we're not using the cuda runtime functions to get the
occupancy (see PR85590 - [nvptx, libgomp, openacc] Use cuda
At present, the nvptx libgomp plugin does not take into account the
amount of shared resources on GPUs (mostly shared-memory are register
usage) when selecting the default num_gangs and num_workers. In certain
situations, an OpenACC offloaded function can fail to launch if the GPU
does not have
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