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exiting the data region, the data from the accelerator is copied back to the host. Table 3 shows a simple example of using the copy
clause.
Table 3: The copy
Clause
Fortran
C
!$acc data copy(a
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/11/05 08:56:13 info unpack layer: sha256:1a930d163dcafa193dc2c3c005d9c220ae1c07a48cad5f7feed0066ada0b998f
2022/11/05 08:56:15 info unpack layer: sha256:d3ca234f568b088b991388a0e9e8b61b05ac8627522f10fe16df2b81d51c0748
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://creativecommons.org/licenses/by-sa/3.0/
Splint: http://splint.org
Hoare, C.A.R. An axiomatic basis for computer programming. Communications of the ACM
, 1969;12(10):576-583, https://web.archive.org/web/20160304013345/http
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; ia[i] = i;
test(a,b,c, SIZE);
for (i=0; in", a[i], b[i], c[i]);
}
Listing 9: nowait Output
0
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) :: a[*]real, dimension(n), codimension[*] :: a
Scalar coarray with corank 3
integer :: cx[10,10,*]
Array coarray with corank 3 and different cobounds
real :: c(m,n) :: [0:10,10
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).
Figure 1: Flattening a 2D array in C or C++.
Listing 3
inspect.c
#include
**
int a[4][5] = { // array of 4 arrays of 5 ints each, a 4x5 matrix
{ 1, 2, 3
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practices, discusses how elements of the Fortran 2003 standard [3] can integrate C and Fortran. The iso_c_binding module of Fortran 2003-compliant compilers matches Fortran and C types with named constants
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OpenMP brings the power of multiprocessing to your C, C++, and Fortran programs.
... A\n");
05 #pragma omp barrier
06 Calculationfunction(B,C);
07 printf("C was calculated from B\n");
08 }
The Calculationfunction()
line in this listing calculates the second argument ...
OpenMP brings the power of multiprocessing to your C, C++, and Fortran programs.
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.txt
14
Delete all numbers and slashes (/
) and hyphens (-
)
cat textdata.txt | sed -n s'/[0-9\/-]//'gp
15
Figure 10: Using
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), has to be specified. Here is a simple example of the declaration:
INTEGER, TARGET :: a(3), b(6), c(9)
INTEGER, DIMENSION(:), POINTER :: pt2
Another quick example of multidimension arrays
