topic Re: Extract Multivalues to Points consumes all memory and never finishes in ArcPro in ArcGIS Pro Questions

Extract Multivalues to Points consumes all memory and never finishes in ArcPro

FilipKrál — Thu, 19 Nov 2015 11:18:05 GMT

Hello all,

I need to extract values from about 30 raster datasets (each about 500 MB in size, signed 32 bit) for about 1500 points.

When I use the Extract Multivalues to Points tool, it quickly consumes all my memory (16 GB) and it never finishes. I must admit I only left it running for about an hour, but that is more than the whole process took in ArcMap.

It seems the tool is extremely memory intensive and I wonder if somebody has any suggestions how to get around it.

An obvious option is to use the Extract Values to Points tool repeatedly. Any other ideas?

Filip

Re: Extract Multivalues to Points consumes all memory and never finishes in ArcPro

DanPatterson_Retired — Thu, 19 Nov 2015 12:12:26 GMT

I would go with the obvious answer. I am not sure parallel processing would help or even speed up the run time. Is it simply a time issue? have you timed the process to find out where the bottleneck is? have you ruled out numpy/python solutions?

Re: Extract Multivalues to Points consumes all memory and never finishes in ArcPro

FilipKrál — Sun, 22 Nov 2015 22:05:56 GMT

Hi,

Thank you for the suggestions.

I ended up using the ExtracValuesToPoints repeatedly on in_memory feature classes and built the resulting feature class that way, renaming the RASTERVALU column each time (i.e. copying the RASTERVALUE column to a new column and deleting RASTERVALU column).

Seems to work OK.