Extra swapping when using gfortran 4.3-20061224 vs gfortran 4.2-20061211

Toon Moene toon@moene.indiv.nluug.nl
Thu Dec 28 19:18:00 GMT 2006


Toon Moene wrote:

> A run of HIRLAM for which the grid was carefully tuned (half a year ago) 
> to the RAM size of my laptop suddenly started to swap two weeks ago when 
> using gfortran 4.3 as the compiler.

I compiled a key routine using --param max-aliased-vops=1000 (as opposed 
to the default 50).  The result was much reduced stack usage.

So I'll first try to compile the whole enchilada (oh, it's with one l) 
with that option before probing the list again.

Cheers,

-- 
Toon Moene - e-mail: toon@moene.indiv.nluug.nl - phone: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
A maintainer of GNU Fortran: http://gcc.gnu.org/fortran/
Who's working on GNU Fortran: 
http://gcc.gnu.org/ml/gcc/2006-01/msg00000.html



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