GPU not possible, disable
is not a fatal
error, just an
When you start Dogwaffle 8.2, you see message in a
popup window alert:
Concurrency: parallel_for_each is
not supported on the selected accelerator "CPU
When you click OK to continue, everything seems
fine, with few exceptions: The 3D Designer for
example does work in wireframe mode but doesn't
display shaded surface mode.
This is an indication that GPU (Graphics Processor
Unit) acceleration may not be possible on that
system, even though some of the key criteria for GPU
support are met. Something (probably on the
graphics chip) is not at the level needed for full
support of GPU in Dogwaffle.
As a side-effect, some features may render
incorrectly, when they're configured to use the GPU.
For example, in the 3D Designer transform filter,
the shaded mode is enabled by default, but it may
not show any shaded surfaces, because GPU lighting
may not work. Wireframe mode may work, just not
shaded mode. See below how to fix this.
This might be seen for example on a system running
Windows 7 or Windows 8 that is powered by low-end
chips, such as Atom CPU and entry level graphics
chip. Even though you might have Windows 7/8 and
even DirectX11, it's not going to support GPU use in
What's also possible is that it's trying to run on
the CPU device, which cannot run GPU code.
There are at least 2 Amp devices when there is a GPU
in a machine. There's the GPU device, and the
CPU device. It's possible that there's a
supported GPU, but the CPU device is the default
device, but it's not very likely.
Here's a page that points to a utility to test for
Can I run C AMP on my device?
PD Pro 8.2 comes with its own utility that is also
shipped with Howler. It should be in the
folder the program is installed in, for example in
C:\Program Files(x86)\Howler. It's a a utility
you need to run from the command prompt, and it is
need to disable GPU in Dogwaffle. TO do so, access
the Window menu, click on Settings, and locate the
'Threading and GPU' button.
You can then see information about cores detected
on the CPU, as well as whether GPU is supported on
the device. In your case you may need to check the
box, to override and disable it. Here is an
example from a Windows 7 platform, with the GPU
supported but use of it is disabled:
Note that in
the example below, which was grabbed from a
Windows XP system, the GPU is showing as not
supported (Supported GPU = False). You can't
disable it any further in that case, and you don't
have to either. In your case however, you might
see it as supported, and you may want to disable
it to see if that fixes the issue. Check that
option to disable the GPU.
After making changes, be sure to Save them and
exit Dogwaffle, then relaunch it.
The warning message may still be seen upon
launching, but in the 3D Designer you should now
again be able to see your properly lit and shaded
key criteria for