Hexagonal tessellation over a large area

[ParmanandSinha]

Dear Members,

I want to create hexagon tessellations of 100meters side over the state of Texas. In ArcGIS Pro, I am using the "Generate Tessellation" geoprocessing tool (arcpy.GenerateTessellation_management) with the Shape_Type hexagon and Size parameter 100meters. Ideally, it will create around 7,000,000,000 hexagons, but it takes forever to complete the process. I have no issues when the hexagon size is larger (say 1,000 or 10,000 meters). I will appreciate any suggestions for expediting this process.

Thanks,

P. Sinha

[JoshuaBixby]

Given that 1,000 meter cells works fine, I am guessing you are running into a memory management issue and paging a lot when moving to 100 meter.  When you run the tool using 100 meter, how much memory is ArcGIS Pro using after a while?  And, how much memory does your machine have?

[ParmanandSinha]

Hi Joshua,

Thanks for your reply. It is an I9 machine with 32 GB of ram. The 1000 meter tessellation process takes about an hour. I believe the arcpy.GenerateTessellation_management function is single-threaded. The memory usage was never going more than half of the available RAM.

[JoshuaBixby]

How long does the 10,000 meter take?  If the process scales linear on time, you might be able to estimate what going from 1,000 meter to 100 meter will take.