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gcc optimization for scyld OS
- From: sashidhar <sashidharg at yahoo dot com>
- To: gcc at gcc dot gnu dot org
- Date: Tue, 29 Oct 2002 21:30:05 -0800 (PST)
- Subject: gcc optimization for scyld OS
Hi,
I am new to linux cluster environments. Recently we have ported some C programs to a
linux cluster of 3 nodes running the Red Hat Scyld OS. Currently, our programs do
not employ any special parallel libraries like PVM or MPI.
Can I still use GCC -O / -O1 / -O2 .. flags to compile these files. Does this still
increase the performance or does this have any side effects?
Does Scyld parallelize the programs by default, atleast upto some extent without
using the specialized libraries? (This question is not exactly related to GCC).
Could someone please help me out.
Thanks,
Sashi.
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