[Trilinos-Users] moar memory leaks/obsessive allocations

Bartlett, Roscoe A. bartlettra at ornl.gov
Wed Jul 4 06:55:03 MDT 2012


The reduceall leak is fixed in the master branch and the latest release branch.

Sent from my Android phone.


-----Original Message-----
From: Nico Schlömer [nico.schloemer at gmail.com<mailto:nico.schloemer at gmail.com>]
Sent: Wednesday, July 04, 2012 04:14 AM Eastern Standard Time
To: trilinos-users at software.sandia.gov
Subject: [Trilinos-Users] moar memory leaks/obsessive allocations


Hi all,

with the big chunk of the Epetra_FE*Matrix allocations gone, I other
leak-like effects surface. Here's one with potentially larger impact,
Teuchos::reduceAll (which is called by virtually all dot-products).

http://win.ua.ac.be/~nschloe/other/mass2.png
http://win.ua.ac.be/~nschloe/other/massif.out.39989

Again, over time, the methods builds up more and more memory. It's
less clear to me how this happens though as reduceAll() itself is
const. It appears to be the create_contiguous call, and hence the
numBytes argument to reduceAll. From then on it's digging where those
calls are made.

--Nico

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