Hi,
I am inverting a 3D elliptical operator with petsc4py (3.4, petsc is 3.4.5)
installed via conda: https://anaconda.org/sed-pro-inria/petsc4py
I get systematic crashes (out of memory or bus error) when I reach a
certain
grid size (512 x 256 x 100) even though I maintain the same number of
grid points per processor.
I used up to 256 procs and got similar crashes.
Browsing the internet indicates that using 64-bit-indices may be cure for
such pb.
It will take however a significant amount of effort for me to install
petsc4py and petsc with this option. I do not even know how to check whether
my current versions of petsc4py and petsc was installed with it.
Would you have any tips or recommendation about how I could address the
issue ?
Thanks,
Aurelien
--
Aurélien Ponte
Tel: (+33) 2 98 22 40 73
Fax: (+33) 2 98 22 44 96
UMR 6523, IFREMER
ZI de la Pointe du Diable
CS 10070
29280 Plouzané
