Windows page file size when running larger processing jobs

Microsoft has identified an issue with page file management. See the Microsoft Memory allocation errors can be caused by slow page file growth article for more information.

A geoprocessing tool may fail or crash with messages indicating that the process could not access additional memory, even though the system drive where the page file is located has sufficient free space. Following the workaround provided in the Microsoft bug report above will cause the process to complete successfully.

Manually configure the size of the page file

This situation typically occurs on systems with 8-16 GB of RAM. The total amount of RAM and the page file size determine the amount of available virtual memory, and Windows should automatically grow the page file to accommodate virtual memory demand of the applications by default. The issue occurs when the page file does not grow quickly enough to keep up with the allocation requests.

The workaround for this issue is to manually configure the size of the page file. To do this, use the workaround from the Microsoft article.

Note:
In Esri's investigation of this issue, it was found that the initial page file size may need to be set higher than the recommended 1.5 times the amount of RAM in the system. The initial page size may need to be 65 GB or higher depending on the processing request. The initial page file size to use depends on the requirements of the processing job, especially if your computer has only the minimum recommended amount of installed RAM to run ArcGIS products. Some trial and error determining the size may be necessary.