SHMEM_IPUT(3)SHMEM_IPUT(3)NAME
shmem_complex_iput, shmem_double_iput, shmem_float_iput,
shmem_int_iput, shmem_integer_iput, shmem_iput4, shmem_iput8,
shmem_iput32, shmem_iput64, shmem_iput128, shmem_logical_iput,
shmem_long_iput, shmem_longdouble_iput, shmem_longlong_iput,
shmem_real_iput, shmem_short_iput - Transfer strided data to a
specified processing element (PE).
SYNOPSIS
C or C++:
#include <mpp/shmem.h>
void shmem_double_iput(double *target, const double *source,
ptrdiff_t tst, ptrdiff_t sst, size_t len, int pe);
void shmem_float_iput(float *target, const float *source, ptrdiff_t
tst, ptrdiff_t sst, size_t len, int pe);
void shmem_int_iput(int *target, const int *source, ptrdiff_t tst,
ptrdiff_t sst, size_t len, int pe);
void shmem_iput32(void *target, const void *source, ptrdiff_t tst,
ptrdiff_t sst, size_t len, int pe);
void shmem_iput64(void *target, const void *source, ptrdiff_t tst,
ptrdiff_t sst, size_t len, int pe);
void shmem_iput128(void *target, const void *source, ptrdiff_t tst,
ptrdiff_t sst, size_t len, int pe);
void shmem_long_iput(long *target, const long *source, ptrdiff_t
tst, ptrdiff_t sst, size_t len, int pe);
void shmem_longdouble_iput(long double *target, const long double
*source, ptrdiff_t tst, ptrdiff_t sst, size_t len, int pe);
void shmem_longlong_iput(long long *target, const long long
*source, ptrdiff_t tst, ptrdiff_t sst, size_t len, int pe);
void shmem_short_iput(short *target, const short *source, ptrdiff_t
tst, ptrdiff_t sst, size_t len, int pe);
Fortran:
INTEGER tst, sst, len, pe
CALL SHMEM_COMPLEX_IPUT(target, source, tst, sst, len, pe)
CALL SHMEM_DOUBLE_IPUT(target, source, tst, sst, len, pe)
CALL SHMEM_INTEGER_IPUT(target, source, tst, sst, len, pe)
CALL SHMEM_IPUT4(target, source, tst, sst, len, pe)
CALL SHMEM_IPUT8(target, source, tst, sst, len, pe)
CALL SHMEM_IPUT32(target, source, tst, sst, len, pe)
CALL SHMEM_IPUT64(target, source, tst, sst, len, pe)
CALL SHMEM_IPUT128(target, source, tst, sst, len, pe)
CALL SHMEM_LOGICAL_IPUT(target, source, tst, sst, len, pe)
CALL SHMEM_REAL_IPUT(target, source, tst, sst, len, pe)
DESCRIPTION
The iput routines provide a high-performance method for copying a
strided array from the local PE to a contiguous data object on a
different PE. The routines return when the data has been copied out
of the source array on the local PE but not necessarily before the
data has been delivered to the remote data object.
The arguments are as follows:
target Array to be updated on the remote PE. This data object must
be remotely accessible.
source Array containing the data to be copied.
tst The stride between consecutive elements of the target array.
The stride is scaled by the element size of the target
array. A value of 1 indicates contiguous data. tst must be
of type integer. If you are using Fortran, it must be a
default integer value.
sst The stride between consecutive elements of the source array.
The stride is scaled by the element size of the source
array. A value of 1 indicates contiguous data. sst must be
of type integer. If you are using Fortran, it must be a
default integer value.
len Number of elements in the target and source arrays. len
must be of type integer. If you are using Fortran, it must
be a constant, variable, or array element of default integer
type.
pe PE number of the remote PE. pe must be of type integer. If
you are using Fortran, it must be a constant, variable, or
array element of default integer type.
The target and source data objects must conform to typing constraints,
which are as follows:
Routine Data Type of target and source
shmem_iput32, shmem_iput4 Any noncharacter type that has a storage
size equal to 32 bits.
shmem_iput64, shmem_iput8 Any noncharacter type that has a storage
size equal to 64 bits.
shmem_iput128 Any noncharacter type that has a storage
size equal to 128 bits.
shmem_short_iput Elements of type short.
shmem_int_iput Elements of type int.
shmem_long_iput Elements of type long.
shmem_longlong_iput Elements of type long long.
shmem_float_iput Elements of type float.
shmem_double_iput Elements of type double.
shmem_longdouble_iput Elements of type long double.
SHMEM_COMPLEX_IPUT Elements of type complex of default
size.
SHMEM_DOUBLE_IPUT (Fortran) Elements of type double precision.
SHMEM_INTEGER_IPUT Elements of type integer.
SHMEM_LOGICAL_IPUT Elements of type logical.
SHMEM_REAL_IPUT Elements of type real.
If you are using Fortran, data types must be of default size. For
example, a real variable must be declared as REAL, REAL*4 or
REAL(KIND=4).
NOTES
See intro_shmem(3) for a definition of the term remotely accessible.
EXAMPLES
Consider the following simple shmem_long_iput example for C/C++
programs.
#include <mpp/shmem.h>
main()
{
short source[10] = { 1, 2, 3, 4, 5,
6, 7, 8, 9, 10 };
static short target[10];
start_pes(2);
if (_my_pe() == 0) {
/* put 10 words into target on PE 1 */
shmem_short_iput(target, source, 1, 2, 5, 1);
}
shmem_barrier_all(); /* sync sender and receiver */
if (_my_pe() == 1) {
shmem_udcflush(); /* not required on IRIX systems */
printf("target on PE %d is %d %d %d %d %d0, _my_pe(),
(int)target[0], (int)target[1], (int)target[2],
(int)target[3], (int)target[4] );
}
shmem_barrier_all(); /* sync before exiting */
}
SEE ALSOintro_shmem(3), shmem_iget(3), shmem_put(3), shmem_quiet(3)
Message Passing Toolkit: MPI Programmer's Manual
