GCC 4.3.2 OpenMP Support in Cygwin

GCC 4.3.2 OpenMP Support in Cygwin

[Michael Craft]

I am trying to compile an OpenMP program in Cygwin using GCC 4.3.2
installed from the repositories. This program compiles in linux with
the exact same compiler fine.

$ gcc-4 -std=gnu99 -fopenmp -o mvp-cygwin matrix-vector-bench.c
matrix-vector-bench.c:11:18: error: omp.h: No such file or directory

Can anyone help?

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Re: GCC 4.3.2 OpenMP Support in Cygwin

[Larry Hall (Cygwin)]

Michael Craft wrote:
> I am trying to compile an OpenMP program in Cygwin using GCC 4.3.2
> installed from the repositories. This program compiles in linux with
> the exact same compiler fine.
> 
> $ gcc-4 -std=gnu99 -fopenmp -o mvp-cygwin matrix-vector-bench.c
> matrix-vector-bench.c:11:18: error: omp.h: No such file or directory
> 
> Can anyone help?

Sorry, I know nothing about OpenMP but the above suggests to me that
the compiler can't find "omp.h".  Does it exist?  Is it in the same
directory as matrix-vector-bench.c?  If not, does it work if you
add '-I <path>' where <path> is the path to the directory where "omp.h"
lives?

-- 
Larry Hall                              http://www.rfk.com
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_____________________________________________________________________

A: Yes.
 > Q: Are you sure?
 >> A: Because it reverses the logical flow of conversation.
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Re: GCC 4.3.2 OpenMP Support in Cygwin

[Dave Korn]

Larry Hall (Cygwin) wrote:
> Michael Craft wrote:
>> I am trying to compile an OpenMP program in Cygwin using GCC 4.3.2
>> installed from the repositories. This program compiles in linux with
>> the exact same compiler fine.
>>
>> $ gcc-4 -std=gnu99 -fopenmp -o mvp-cygwin matrix-vector-bench.c
>> matrix-vector-bench.c:11:18: error: omp.h: No such file or directory
>>
>> Can anyone help?
> 
> Sorry, I know nothing about OpenMP but the above suggests to me that
> the compiler can't find "omp.h".  Does it exist?  

  GOMP, the GNU OpenMP library implementation, is shipped with GCC series 4,
but was not enabled in earlier builds of the Cygwin distro compiler.  It will
be included in the upcoming gcc4-4.3.2-2 release, ETA within the next seven
days.  There's a home page at:

http://gcc.gnu.org/projects/gomp/

    cheers,
      DaveK

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Re: GCC 4.3.2 OpenMP Support in Cygwin

[Michael Craft]

I compiled it myself using the "--enable-libgomp" flag on the configure script.

On Wed, Feb 11, 2009 at 1:57 AM, Dave Korn
<dave.korn.cygwin@googlemail.com> wrote:
> Larry Hall (Cygwin) wrote:
>> Michael Craft wrote:
>>> I am trying to compile an OpenMP program in Cygwin using GCC 4.3.2
>>> installed from the repositories. This program compiles in linux with
>>> the exact same compiler fine.
>>>
>>> $ gcc-4 -std=gnu99 -fopenmp -o mvp-cygwin matrix-vector-bench.c
>>> matrix-vector-bench.c:11:18: error: omp.h: No such file or directory
>>>
>>> Can anyone help?
>>
>> Sorry, I know nothing about OpenMP but the above suggests to me that
>> the compiler can't find "omp.h".  Does it exist?
>
>  GOMP, the GNU OpenMP library implementation, is shipped with GCC series 4,
> but was not enabled in earlier builds of the Cygwin distro compiler.  It will
> be included in the upcoming gcc4-4.3.2-2 release, ETA within the next seven
> days.  There's a home page at:
>
> http://gcc.gnu.org/projects/gomp/
>
>    cheers,
>      DaveK
>
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>

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