Occurrence:
I run the RANGRID GX using large dataset and/or very small gridding criteria and get the error:
"Unable to allocate the memory required to complete the Rangrid task"
Resolution:
As a first step, it is recommended that you restart Oasis montaj. This should clear out any temporary memory. To learn more about clearing out your temporary memory folder see this article.
Then change the criteria for gridding and/or break down and grid data piecewise. That is, to increase the cell size (reduce resolution), or split the area up into smaller sub-blocks.
If you do opt to split the area into smaller sub-blocks , once you have gridded the data you can use boolean operations or grid knit functions to recombine the sub-blocks.
Note:
This memory allocation issue can cause your memory to continue to be 'used' by the RANGRID GX. The application may not be releasing the memory after a failed process. Restarting Oasis montaj will release any temporary memory that wasn't properly released.
Root Cause:
Your environment does not have enough memory to handle the request you have made of it. If you have very large datasets and high resolution criteria when gridding, this is not uncommon.