Re: [Qgis-user] QGis and Mac hardware

2016-11-07 Thread Nyall Dawson 
On 8 Nov 2016 6:10 AM, "Andreas Neumann"  wrote:
>
> Hi,
>
> I would also recommend going with the 15 inch display. The 13 inch
display is on the lower side and probably not a lot of fun. QGIS has
several dialogs and also the styling side panel introduced in 2.16 needs a
bit of a minimum size. If your display is only 13 inch you end up scrolling
a lot in the dialogs and panels.
>
> (Q)GIS needs a bit of a screen size to use it efficiently. Of course, if
you are not on the road you can also connect an external display, which I
also recommend.
>
> I would also upgrade RAM a bit. As others said, the GPU acceleration is
not yet supported.

Not yet - but given that we've moved to qt5 and now have access to qt3d,
it's probably not long before we start to see 3d features in QGIS.

So I'd also suggest going with the future proof option.

Nyall

>
> Andreas
>
>
> Am 07.11.2016 um 19:18 schrieb Nicolas Cadieux:
>>
>> Hi,
>>
>> Currently GPU acceleration is not used.  Maybe some plugins can use it
but I have not seen anything yet.  I have put in a request to use GPU for
the qgis 3.0 raster calculator as it needs to be upgraded for huge
rasters.  Currently , the qgis raster calculator can not handle big
rasters.  The new version needs to break up the raster into smaller chucks
and if you have done that, you might as well use the multi CPU ou GPU to do
the rest.  I an hopping this will be fixed for 3.0.  Rendering is
multithreaded and will be faster the more cores you have.  Personally, I
would go for the quad core without even thinking for this and other
softwares.  I would think of getting an ssd also.  I have not used qgis on
a MAC (PC and ubuntu only) but I expect this comment  to be valid for Macs
also.
>>
>> Nicolas
>>
>> Le 7 nov. 2016 à 11:12, Matthias Kuhn-2 [via OSGeo.org] <[hidden email]>
a écrit :
>>
>>> Hi
>>>
>>> On 11/07/2016 05:02 PM, Square Cube wrote:
>>> >
>>> >
>>> >> I am looking to update some hardware and am trying to evaluate what
>>> >> performance difference in QGis might be gained from the options
>>> >> currently on offer from Apple.  I have two specific questions:
>>> >>
>>> >> - Does QGis have GPU acceleration features that leave the graphics
>>> >> card to perform certain calculations, instead of the CPU?
>>>
>>> No
>>>
>>> >>
>>> >> - Does QGis take advantage of multiple cores and / or multithreaded
>>> >> rendering?
>>>
>>> Yes, and it is expected that it will make even more use of multiple
>>> cores in the upcoming QGIS 3.0 version.
>>>
>>> Matthias
>>>
>>> >>
>>> >> I am trying to understand if it would be worth my while investing in
a
>>> >> 15" MacBookPro (with quad core CPU and discreet graphics card) over
a
>>> >> 13" MacBook Pro (with dual core CPU and integrated graphics).
>>> >>
>>> >> Very grateful for any advice.
>>> >
>>> >
>>> > ___
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>>
>>
>> 
>> View this message in context: Re: QGis and Mac hardware
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Re: [Qgis-user] QGis and Mac hardware

2016-11-07 Thread Andreas Neumann 

Hi,

I would also recommend going with the 15 inch display. The 13 inch 
display is on the lower side and probably not a lot of fun. QGIS has 
several dialogs and also the styling side panel introduced in 2.16 needs 
a bit of a minimum size. If your display is only 13 inch you end up 
scrolling a lot in the dialogs and panels.


(Q)GIS needs a bit of a screen size to use it efficiently. Of course, if 
you are not on the road you can also connect an external display, which 
I also recommend.


I would also upgrade RAM a bit. As others said, the GPU acceleration is 
not yet supported.


Andreas


Am 07.11.2016 um 19:18 schrieb Nicolas Cadieux:

Hi,

Currently GPU acceleration is not used.  Maybe some plugins can use it 
but I have not seen anything yet.  I have put in a request to use GPU 
for the qgis 3.0 raster calculator as it needs to be upgraded for huge 
rasters.  Currently , the qgis raster calculator can not handle big 
rasters.  The new version needs to break up the raster into smaller 
chucks and if you have done that, you might as well use the multi CPU 
ou GPU to do the rest.  I an hopping this will be fixed for 3.0. 
 Rendering is multithreaded and will be faster the more cores you 
have.  Personally, I would go for the quad core without even thinking 
for this and other softwares.  I would think of getting an ssd also. 
 I have not used qgis on a MAC (PC and ubuntu only) but I expect this 
comment  to be valid for Macs also.


Nicolas

Le 7 nov. 2016 à 11:12, Matthias Kuhn-2 [via OSGeo.org 
] <[hidden email] 
> a écrit :



Hi

On 11/07/2016 05:02 PM, Square Cube wrote:
>
>
>> I am looking to update some hardware and am trying to evaluate what
>> performance difference in QGis might be gained from the options
>> currently on offer from Apple.  I have two specific questions:
>>
>> - Does QGis have GPU acceleration features that leave the graphics
>> card to perform certain calculations, instead of the CPU?

No

>>
>> - Does QGis take advantage of multiple cores and / or multithreaded
>> rendering?

Yes, and it is expected that it will make even more use of multiple
cores in the upcoming QGIS 3.0 version.

Matthias

>>
>> I am trying to understand if it would be worth my while investing 
in a

>> 15" MacBookPro (with quad core CPU and discreet graphics card) over a
>> 13" MacBook Pro (with dual core CPU and integrated graphics).
>>
>> Very grateful for any advice.
>
>
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Re: [Qgis-user] QGis and Mac hardware

2016-11-07 Thread Michael Treglia 
There actually is a plugin to call on NVIDIA CUDA-enabled GPUs, called CUDA
Raster - not sure if it will work on Macs, as it is 'Only tested to work on
linux machines', but worth looking into

You can find the project in the plugin repository; the github page for it
is here: https://github.com/aFuerst/PyCUDA-Raster and there's a blog post
about it by Art Lembo here:
https://artlembo.wordpress.com/2016/07/22/qgis-gpu-processing-update/#more-1941

hope that helps,
mike

On Mon, Nov 7, 2016 at 1:34 PM, Even Rouault 
wrote:

> Le lundi 07 novembre 2016 19:18:33, Nicolas Cadieux a écrit :
> > Hi,
> >
> > Currently GPU acceleration is not used.  Maybe some plugins can use it
> but
> > I have not seen anything yet.  I have put in a request to use GPU for the
> > qgis 3.0 raster calculator as it needs to be upgraded for huge rasters.
> > Currently , the qgis raster calculator can not handle big rasters.  The
> > new version needs to break up the raster into smaller chucks and if you
> > have done that, you might as well use the multi CPU ou GPU to do the
> rest.
> >  I an hopping this will be fixed for 3.0.  Rendering is multithreaded and
> > will be faster the more cores you have.  Personally, I would go for the
> > quad core without even thinking for this and other softwares.  I would
> > think of getting an ssd also.  I have not used qgis on a MAC (PC and
> > ubuntu only) but I expect this comment  to be valid for Macs also.
>
> If you use gdalwarp, with GDAL configured with OpenCL (which is rarely the
> case
> for most standard binary builds), you can get GPU acceleration for non
> nearest
> neighbour resampling. Although currently the gain is generally modest (or
> even
> slower) w.r.t multi-threaded acceleration, and you may face issues with
> buggy
> OpenCL drivers. Might be that the OpenCL code path isn't completely
> optimized
> too as it is still rather experimental.
>
> >
> > Nicolas
> >
> > > Le 7 nov. 2016 à 11:12, Matthias Kuhn-2 [via OSGeo.org]
> > >  a écrit :
> > >
> > > Hi
> > >
> > > On 11/07/2016 05:02 PM, Square Cube wrote:
> > > >> I am looking to update some hardware and am trying to evaluate what
> > > >> performance difference in QGis might be gained from the options
> > > >> currently on offer from Apple.  I have two specific questions:
> > > >>
> > > >> - Does QGis have GPU acceleration features that leave the graphics
> > > >> card to perform certain calculations, instead of the CPU?
> > >
> > > No
> > >
> > > >> - Does QGis take advantage of multiple cores and / or multithreaded
> > > >> rendering?
> > >
> > > Yes, and it is expected that it will make even more use of multiple
> > > cores in the upcoming QGIS 3.0 version.
> > >
> > > Matthias
> > >
> > > >> I am trying to understand if it would be worth my while investing
> in a
> > > >> 15" MacBookPro (with quad core CPU and discreet graphics card) over
> a
> > > >> 13" MacBook Pro (with dual core CPU and integrated graphics).
> > > >>
> > > >> Very grateful for any advice.
> > > >
> > > > ___
> > > > Qgis-user mailing list
> > > > [hidden email]
> > > > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user
> > > > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
> > >
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> GIS -
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Re: [Qgis-user] QGis and Mac hardware

2016-11-07 Thread Even Rouault 
Le lundi 07 novembre 2016 19:18:33, Nicolas Cadieux a écrit :
> Hi,
> 
> Currently GPU acceleration is not used.  Maybe some plugins can use it but
> I have not seen anything yet.  I have put in a request to use GPU for the
> qgis 3.0 raster calculator as it needs to be upgraded for huge rasters. 
> Currently , the qgis raster calculator can not handle big rasters.  The
> new version needs to break up the raster into smaller chucks and if you
> have done that, you might as well use the multi CPU ou GPU to do the rest.
>  I an hopping this will be fixed for 3.0.  Rendering is multithreaded and
> will be faster the more cores you have.  Personally, I would go for the
> quad core without even thinking for this and other softwares.  I would
> think of getting an ssd also.  I have not used qgis on a MAC (PC and
> ubuntu only) but I expect this comment  to be valid for Macs also.

If you use gdalwarp, with GDAL configured with OpenCL (which is rarely the case 
for most standard binary builds), you can get GPU acceleration for non nearest 
neighbour resampling. Although currently the gain is generally modest (or even 
slower) w.r.t multi-threaded acceleration, and you may face issues with buggy 
OpenCL drivers. Might be that the OpenCL code path isn't completely optimized 
too as it is still rather experimental.

> 
> Nicolas
> 
> > Le 7 nov. 2016 à 11:12, Matthias Kuhn-2 [via OSGeo.org]
> >  a écrit :
> > 
> > Hi
> > 
> > On 11/07/2016 05:02 PM, Square Cube wrote:
> > >> I am looking to update some hardware and am trying to evaluate what
> > >> performance difference in QGis might be gained from the options
> > >> currently on offer from Apple.  I have two specific questions:
> > >> 
> > >> - Does QGis have GPU acceleration features that leave the graphics
> > >> card to perform certain calculations, instead of the CPU?
> > 
> > No
> > 
> > >> - Does QGis take advantage of multiple cores and / or multithreaded
> > >> rendering?
> > 
> > Yes, and it is expected that it will make even more use of multiple
> > cores in the upcoming QGIS 3.0 version.
> > 
> > Matthias
> > 
> > >> I am trying to understand if it would be worth my while investing in a
> > >> 15" MacBookPro (with quad core CPU and discreet graphics card) over a
> > >> 13" MacBook Pro (with dual core CPU and integrated graphics).
> > >> 
> > >> Very grateful for any advice.
> > > 
> > > ___
> > > Qgis-user mailing list
> > > [hidden email]
> > > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user
> > > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
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> > 662.html To start a new topic under Quantum GIS - User, email
> > ml-node+s1560n4125267...@n6.nabble.com To unsubscribe from Quantum GIS -
> > User, click here.
> > NAML
> 
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Re: [Qgis-user] QGis and Mac hardware

2016-11-07 Thread Nicolas Cadieux 
Hi,

Currently GPU acceleration is not used.  Maybe some plugins can use it but I 
have not seen anything yet.  I have put in a request to use GPU for the qgis 
3.0 raster calculator as it needs to be upgraded for huge rasters.  Currently , 
the qgis raster calculator can not handle big rasters.  The new version needs 
to break up the raster into smaller chucks and if you have done that, you might 
as well use the multi CPU ou GPU to do the rest.  I an hopping this will be 
fixed for 3.0.  Rendering is multithreaded and will be faster the more cores 
you have.  Personally, I would go for the quad core without even thinking for 
this and other softwares.  I would think of getting an ssd also.  I have not 
used qgis on a MAC (PC and ubuntu only) but I expect this comment  to be valid 
for Macs also.

Nicolas

> Le 7 nov. 2016 à 11:12, Matthias Kuhn-2 [via OSGeo.org] 
>  a écrit :
> 
> Hi 
> 
> On 11/07/2016 05:02 PM, Square Cube wrote: 
> > 
> > 
> >> I am looking to update some hardware and am trying to evaluate what 
> >> performance difference in QGis might be gained from the options 
> >> currently on offer from Apple.  I have two specific questions: 
> >> 
> >> - Does QGis have GPU acceleration features that leave the graphics 
> >> card to perform certain calculations, instead of the CPU? 
> 
> No 
> 
> >> 
> >> - Does QGis take advantage of multiple cores and / or multithreaded 
> >> rendering? 
> 
> Yes, and it is expected that it will make even more use of multiple 
> cores in the upcoming QGIS 3.0 version. 
> 
> Matthias 
> 
> >> 
> >> I am trying to understand if it would be worth my while investing in a 
> >> 15" MacBookPro (with quad core CPU and discreet graphics card) over a 
> >> 13" MacBook Pro (with dual core CPU and integrated graphics). 
> >> 
> >> Very grateful for any advice. 
> > 
> > 
> > ___ 
> > Qgis-user mailing list 
> > [hidden email] 
> > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user
> > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
> >
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Re: [Qgis-user] QGis and Mac hardware

2016-11-07 Thread Matthias Kuhn 
Hi

On 11/07/2016 05:02 PM, Square Cube wrote:
> 
> 
>> I am looking to update some hardware and am trying to evaluate what
>> performance difference in QGis might be gained from the options
>> currently on offer from Apple.  I have two specific questions:
>>
>> - Does QGis have GPU acceleration features that leave the graphics
>> card to perform certain calculations, instead of the CPU?

No

>>
>> - Does QGis take advantage of multiple cores and / or multithreaded
>> rendering?

Yes, and it is expected that it will make even more use of multiple
cores in the upcoming QGIS 3.0 version.

Matthias

>>
>> I am trying to understand if it would be worth my while investing in a
>> 15" MacBookPro (with quad core CPU and discreet graphics card) over a
>> 13" MacBook Pro (with dual core CPU and integrated graphics).
>>
>> Very grateful for any advice. 
> 
> 
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[Qgis-user] QGis and Mac hardware

2016-11-07 Thread Square Cube 


I am looking to update some hardware and am trying to evaluate what performance 
difference in QGis might be gained from the options currently on offer from 
Apple.  I have two specific questions:

- Does QGis have GPU acceleration features that leave the graphics card to 
perform certain calculations, instead of the CPU?

- Does QGis take advantage of multiple cores and / or multithreaded rendering?

I am trying to understand if it would be worth my while investing in a 15" 
MacBookPro (with quad core CPU and discreet graphics card) over a 13" MacBook 
Pro (with dual core CPU and integrated graphics).

Very grateful for any advice.
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