[Pw_forum] stack.c in Mac OS X/Intel

[Axel Kohlmeyer]

On Tue, 4 Mar 2008, Paolo Giannozzi wrote:

PG> Cesar R.S. da Silva wrote:
PG> 
PG> > Problem: Mac OS X does not allow regular users to set stack limits above
PG> > certain maximum. Therefore, the esprsso-distribution clib/stack.c fails.
PG> 
PG> I have an Intel Mac OS-X (10.4) and I never had any problem with
PG> clib/stack.c, apart from the annoying message "Cannot set stack ..."

dear paolo,

to make the confusion about intel software products complete,
the strategy of allocating automatic arrays on the heap can be 
avoided with recent intel compilers (10.0) using the -heap-arrays
flag. a choice of -heap-arrays 32  (everything above 32kb gets
allocated via malloc(3) instead of alloca(3)) seems to be a
reasonable choice.

cheers,
   axel.

PG> 
PG> Paolo
PG> 

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Axel Kohlmeyer   akohlmey at cmm.chem.upenn.edu   http://www.cmm.upenn.edu
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