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Mail Archives: cygwin/2012/02/01/19:03:31

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Date: Thu, 2 Feb 2012 11:03:08 +1100
Message-ID: <CA+4WVXm9Xo8gAhzqKpJcD=enQHF0Nrzh36X2O4b2qNrOij2JOw@mail.gmail.com>
Subject: RE: MinGW gfortran and OpenMP issues...
From: Nick Chilton <nicholas DOT chilton AT monash DOT edu>
To: cygwin AT cygwin DOT com
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Hi,

I'm still having problems with OpenMP and the x86_64 MinGW compilers -
code which can run fine on Linux with any number of threads (mapped to
different cores) still will only use  one core on an i5 quad core
windows box. Is this a windows limitation or a compiler one?

Compile with:

x86_64-w64-mingw32-gfortran.exe -o a.exe -mno-cygwin -static -O3
-fopenmp -cpp -Domp $(SOURCES) -L/home/Nick/lib/ -llapack -lblas


Nick

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