[GRASS-dev] ParallelModuleQueue freezes...

[Stefan Blumentrath]

Some more context.
The t.rast.neighbors test seems to work with the current dev version
"2048e1016" from 2021-05-19T09:38:49+00:00
It fails however, with 7.8.5 from 2020-12-22T15:55:09+00:00 and an older development version "35edbf7dc"
from 2020-06-03T16:03:52+00:00

So, maybe one or more of the recent changes need backporting?
https://github.com/OSGeo/grass/commits/master/python/grass/pygrass/modules/interface/module.py

In the 7_8 release branch, the latest change is from May 2019:
https://github.com/OSGeo/grass/commits/releasebranch_7_8/lib/python/pygrass/modules/interface/module.py

Hope that helps identifying a solution?

Cheers
Stefan

-----Original Message-----
From: Stefan Blumentrath <Stefan.Blumentrath at nina.no> 
Sent: torsdag 27. mai 2021 23:09
To: Stefan Blumentrath <Stefan.Blumentrath at nina.no>; Luca Delucchi <lucadeluge at gmail.com>; Anna Petrášová <kratochanna at gmail.com>
Cc: GRASS developers list <grass-dev at lists.osgeo.org>
Subject: RE: [GRASS-dev] ParallelModuleQueue freezes...

See:
https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FOSGeo%2Fgrass%2Fpull%2F1600&data=04%7C01%7C%7Cc5fe909715a647431c9308d92153b445%7C6cef373021314901831055b3abf02c73%7C0%7C0%7C637577465653048701%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=5yfxG5gjlYlzgJn6yTP9zbUk7GE1JdcYPxWIQFwUK%2Fo%3D&reserved=0
Please test.
Unittests for t.rast.neighbors should work again with this small change...

-----Original Message-----
From: grass-dev <grass-dev-bounces at lists.osgeo.org> On Behalf Of Stefan Blumentrath
Sent: torsdag 27. mai 2021 08:19
To: Luca Delucchi <lucadeluge at gmail.com>; Anna Petrášová <kratochanna at gmail.com>
Cc: GRASS developers list <grass-dev at lists.osgeo.org>
Subject: Re: [GRASS-dev] ParallelModuleQueue freezes...

The combination ParallelModuleQueue and MultiModule is used in t.rast.neighbors: https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FOSGeo%2Fgrass%2Fblob%2Fmaster%2Ftemporal%2Ft.rast.neighbors%2Ft.rast.neighbors.py&data=04%7C01%7C%7Cc5fe909715a647431c9308d92153b445%7C6cef373021314901831055b3abf02c73%7C0%7C0%7C637577465653048701%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=5QyN%2FR1cXgoWWGS2lgjKi8%2BeLX77w37bfMQzcP6O4bM%3D&reserved=0

The testsuite of that module is deactivated for Python > 2.
https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FOSGeo%2Fgrass%2Fblob%2Fmaster%2Ftemporal%2Ft.rast.neighbors%2Ftestsuite%2Ftest_neighbors.py&data=04%7C01%7C%7Cc5fe909715a647431c9308d92153b445%7C6cef373021314901831055b3abf02c73%7C0%7C0%7C637577465653048701%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=nQTdDIGmefI6F37zdjhyMDBYUrIxVaC%2FiA5FzeUK2KU%3D&reserved=0

If you activate it by commenting out line 15. You will see the behavior...

Thanks for looking into this!

Cheers
Stefan


-----Original Message-----
From: Luca Delucchi <lucadeluge at gmail.com> 
Sent: torsdag 27. mai 2021 06:07
To: Anna Petrášová <kratochanna at gmail.com>
Cc: Stefan Blumentrath <Stefan.Blumentrath at nina.no>; GRASS developers list <grass-dev at lists.osgeo.org>
Subject: Re: [GRASS-dev] ParallelModuleQueue freezes...

On Thu, 27 May 2021 at 04:07, Anna Petrášová <kratochanna at gmail.com> wrote:
>
> Could you provide an example that is failing? The doctests are running for me. I spent some time fixing it a couple months ago. I use Python 3.6, I wonder if newer Python would cause some issues.
>

https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2FOSGeo%2Fgrass-addons%2Fpull%2F523%2Ffiles&data=04%7C01%7C%7Cc5fe909715a647431c9308d92153b445%7C6cef373021314901831055b3abf02c73%7C0%7C0%7C637577465653048701%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=KT5h55J89LLXhK7uEujAmIwfksjPGyXEy2u7gYIc2Ns%3D&reserved=0 line 544, the commented lines are not working for me..
If you want to try t.vi just comment line 543 and uncomment the following lines..

> Anna
>

--
ciao
Luca

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