[Pw_forum] memory problem

Paolo Giannozzi giannozz at democritos.it
Wed Nov 5 12:14:16 CET 2008

On Nov 5, 2008, at 10:22 , Prasenjit Ghosh wrote:

> so there is something strange when restarting.

...or maybe there is nothing strange in restarting. Some op.sys. (AIX  
for sure)
show the maximum memory usage. Restarting may require a lot of memory,
especially in parallel, but if this memory is deallocated, it is  
available for later
usage. Of course, if it is no longer used and not deallocated, this  
is a bug.

> Yes, but what is it? Can you please suggest some possible things to  
> check at??

first thing to check is what "memstat" actually returns. This can be  
with a small program.

In the meantime: don't use "restart". You gain very little anyway.

> So why does it increase??

it doesn't

Paolo Giannozzi, Dept of Physics, University of Udine
via delle Scienze 208, 33100 Udine, Italy
Phone +39-0432-558216, fax +39-0432-558222

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