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problem with Automatic parallelization in GCC4.5
- From: "zhouxu(NUDT)" <zhouxuzhu1985 at gmail dot com>
- To: gcc-help <gcc-help at gcc dot gnu dot org>
- Date: Wed, 28 Jul 2010 11:30:24 +0800
- Subject: problem with Automatic parallelization in GCC4.5
I have successfully build GCC4.5 on my Fedora12. And I want to
test the automatic parallelization feature of GCC4.5. I write a system
program and compile it with flags:
-O2 -fno-loop-strip-mine -floop-interchange -fgraphite-identity
But I got the following error:
block.c:1:0: sorry, unimplemented: Graphite loop optimizations cannot be used
I am confused. It seems the error is related to the flag
"-floop-parallelize-all". Does anyone knows what the problem is?