memory leak on repeat call to leapfrog

NDF-Poli-USP / spyro

Wave propagators for seismic domains with application to full waveform inversion.

GNU General Public License v3.0

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Open krober10nd opened 3 years ago

krober10nd commented 3 years ago

Memory grows on each successive call to leapfrog which is problematic obviously for FWI.
Investigating...will post an image shortly.

krober10nd commented 3 years ago

generational garbage collector is not experiencing sufficient pressure to be called.
Here I call the garbage collector manually at the end of the forward problem to release the memory occupied by symbolics.
Solution: gc.collect() at the end of each FWI iteration

krober10nd commented 3 years ago

this is being addressed by rewriting solvers in a class-based structure #3

krober10nd commented 3 years ago

If we call gc then we have to disable it to avoid hang ups