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Memory leak during geometry relaxation with the implicit solvation model #6794

@LKFEIYI

Description

@LKFEIYI

Describe the bug

The memory usage increased during geometry relaxation with the implicit solvation model.

example.zip

Here is an example. In mem_abacus_rss.log, the memory usage increased from 3 GB to ~7 GB after 8 steps of relaxation. The example may take 30 minutes on a PC with an AMD 7950X.

Expected behavior

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Environment

OS: Ubuntu 22.04
Compiler: gcc 11.4

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