[petsc-users] Bad memory scaling with PETSc 3.10

Zhang, Hong hzhang at mcs.anl.gov
Wed Apr 10 21:12:56 CDT 2019

> Myriam,
> Thanks for the plot. '-mat_freeintermediatedatastructures' should not affect solution. It releases almost half of memory in C=PtAP if C is not reused.

And yet if turning it on causes divergence, that would imply a bug.
Hong, are you able to reproduce the experiment to see the memory
I like to test his code using an alcf machine, but my hands are full now. I'll try it as soon as I find time, hopefully next week.
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