OpenMP on gcc - ReadList.com

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OpenMP on gcc
\ Dima Sorkin (28 Mar 2007)
. \ Ferad Zyulkyarov (28 Mar 2007)
. . \ Tim Prince (28 Mar 2007)
. . . \ Ferad Zyulkyarov (28 Mar 2007)
. . . \ Steve Kargl (29 Mar 2007)

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Subject:	OpenMP on gcc
Group:	Gcc-help
From:	Dima Sorkin
Date:	28 Mar 2007

Hi.
I have some c++ code that should compile both
under GCCs (starting from gcc 3.1 to 4.0) and other
compiler. I want to insert OpenMP pragmas
into code, to optimize it.

1) Starting from which version does GCC support OpenMP ?
2) Will old versions of GCC just ignore OpenMP pragmas, or these
will cause errors ?

Thank you.
Dima.