Mercurial > hg > CbC > CbC_gcc
diff libgomp/testsuite/libgomp.fortran/omp_reduction.f @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libgomp/testsuite/libgomp.fortran/omp_reduction.f Fri Jul 17 14:47:48 2009 +0900 @@ -0,0 +1,33 @@ +C****************************************************************************** +C FILE: omp_reduction.f +C DESCRIPTION: +C OpenMP Example - Combined Parallel Loop Reduction - Fortran Version +C This example demonstrates a sum reduction within a combined parallel loop +C construct. Notice that default data element scoping is assumed - there +C are no clauses specifying shared or private variables. OpenMP will +C automatically make loop index variables private within team threads, and +C global variables shared. +C AUTHOR: Blaise Barney 5/99 +C LAST REVISED: +C****************************************************************************** + + PROGRAM REDUCTION + + INTEGER I, N + REAL A(100), B(100), SUM + +! Some initializations + N = 100 + DO I = 1, N + A(I) = I *1.0 + B(I) = A(I) + ENDDO + SUM = 0.0 + +!$OMP PARALLEL DO REDUCTION(+:SUM) + DO I = 1, N + SUM = SUM + (A(I) * B(I)) + ENDDO + + PRINT *, ' Sum = ', SUM + END