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When I am developing a large application in LabVIEW, I sometimes receive the following error message:
LabVIEW: Memory is full.
The top-level VI was stopped on the block diagram.
Refer to the VI Memory Usage topic in the LabVIEW Help for suggestions on monitoring and improving VI memory usage.
I have a large amount of available RAM, so why am I receiving this error message?
This error message is typically encountered when developing an application with large data sets of arrays, clusters, or waveforms. Because LabVIEW stores each data set in a contiguous block of memory, the block of memory available on your computer might not be large enough to store a large data set.
Below are some suggestions to help prevent this error message from appearing:
Reducing Memory Used by Arrays, Clusters, and Waveforms
Reducing Memory Usage in Applications
Increasing Memory in LabVIEW
This message is most common if LabVIEW cannot allocate a block of memory large enough for an array. For example, a 2D array of double-precision floating-point numbers of size 2,000 by 2,000 elements uses approximately 32 MB. Even if 32 MB of memory is available, you may not have a block of contiguous memory large enough for the array.This message is also generated when an array containing more than 2^31 elements is used to index a For Loop. Arrays can contain up to 2^32 elements, but a For Loop can only index up to 2^31 values. This is because the N terminal uses the signed 32-bit integer (I32) numeric data type rather than the unsigned 32-bit integer (U32) data type. The most significant bit of the I32 data type is used to specify whether the value is positive or negative.
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