On 7/30/2022 6:36 PM, Greg Troxel via
Qgis-user wrote:
I do understand that threads could help parallelization, eitehr using
multiple cores, or just allowing IO in parallel.
chris hermansen writes:
Does it seem like you have one
I do understand that threads could help parallelization, eitehr using
multiple cores, or just allowing IO in parallel.
chris hermansen writes:
> Does it seem like you have one thread per layer for reading plus one for
> rendering plus one for user input?
I don't know how many layers I have
ALCON, We are processing data at 4cm resolution from 4000 ft altitude that
gives me a DSM Ortho of about 800 GB -1.3 TB depending on the bit depth. My
folders have a rile count of over 88,000 Tiles @ 2048 X 2048 with a GSD of
~.076 depending on the processing you are doing I am guessing you
Mike and list,
Mike, would you please explain why the surface area would be related to the
number of threads?
1000 square miles or ~ 250.000 hectares in my units is big but not huge. We
have a 7 million hectare vegetation inventory we're updating now.
Do you have a bunch of small tiles? Are you
Chris, it really depends on how large your project is. Some of my projects
cover 1000 sq miles. Usually I don’t use QGIS directly for that, I break it
down to smaller pieces.
From: Qgis-user On Behalf Of chris
hermansen via Qgis-user
Sent: Saturday, July 30, 2022 2:37 PM
To: Greg Troxel
Cc:
Greg and list
On Sat, Jul 30, 2022 at 10:38 AM Greg Troxel via Qgis-user <
qgis-user@lists.osgeo.org> wrote:
>
> (I realize excessive is relative. Back when I was young, we didn't have
> any threads at all)
>
> My desktop is NetBSD 9, I ran out of threads, and found that qgis 3.22.8
> was
Yes I see a lot of threads. The more tne merrier, the faster the throughput.
I am running an I9 9980XE with 18 cores. What having the threads running does
is it allows computing to happen while I/O is running in the foreground. To
make most efficient use of multiple threads the workload has
(I realize excessive is relative. Back when I was young, we didn't have
any threads at all)
My desktop is NetBSD 9, I ran out of threads, and found that qgis 3.22.8
was using 157 threads, much more than I expected.
Yes, I know 157 is not a super large number, and that the limit of 1024
*Reetz, Michael (NLPV)*
/Fri Jul 29 03:46:34 PDT 2022/
maybe I'm wrong, but isn't the maximum file size for the dbf format 2 GB?
Obviously it is possible to put more data in it (with ESRI software ?), but
this may lead to
